C10100 Oxygen-Free Electronic (OFE) Copper
Primary Designation:UNS C10100
Aliases:
Oxygen-Free ElectronicOFE CopperC10100
Mat Grades internal verification confirms source-backed fidelity and data integrity. It does not constitute external certification, ASTM/CDA endorsement, or guaranteed material conformity for procurement.
Data Completeness & Record Integrity:10 composition elements and 165 contextual property values cataloged.
Omitted fields represent unverified parameters. "Missing is better than invented."
Key Engineering Properties
Representative source rows, qualified by their reported conditions. Inspect the tables below for all values, limits, and source notes.
Density
8.941 g/cm³TYPICAL · at 20 °C
Electrical Conductivity
101 % IACSTYPICAL · at 20 °C
Thermal Conductivity
391.15 W/(m·K)TYPICAL · at 20 °C
Specific Heat Capacity
385.2 J/(kg·K)TYPICAL · at 20 °C
Melting Range (Solidus / Liquidus)
1082.8 – 1082.8 °C1981.0 – 1981.0 °F
Solidus: 1082.8°C | Liquidus: 1082.8°CComposition Excerpt
Cu ≥ 99.99 wt%Copper (min)
Standard Elemental Basis: MINEngineering Summary
UNS C10100 Oxygen-Free Electronic (OFE) Copper is premium 99.99% pure unalloyed copper produced by vacuum induction melting with oxygen controlled below 5 ppm (0.0005%). It provides minimum 101% IACS electrical conductivity and complete immunity to hydrogen embrittlement during high-temperature brazing and vacuum tube glass-to-metal sealing.
Documented Product Applications (Cited CDA Reference Profile)
- ›Anodes for Vacuum Tubes: Conductivity (Thermal)
- ›Anodes for Vacuum Tubes: Corrosion Resistance
- ›Automotive Rectifiers: Conductivity (Thermal)
- ›Automotive: Automotive Rectifiers
- ›Bus Bars: Conductivity (Electrical)
- ›Bus Bars: Welding Characteristics
- ›Bus Conductors: Conductivity (Electrical)
- ›Bus Conductors: Conductivity (Thermal)
- ›Bus Conductors: Corrosion Resistance
- ›Bus Conductors: Solderability
- ›Coaxial Cable: Conductivity (Electrical)
- ›Coaxial Tube: Conductivity (Electrical)
Recognized Aliases
Source-backed commercial trade name and short designations cataloged in canonical data.
Oxygen-Free ElectronicOFE CopperC10100
Standard Designations & Applicable Specifications
Semantically classified designations distinguishing primary standard identifiers, commercial trade names, and applicable specification references.
Direct Standard DesignationsDIRECT DESIGNATION
2 Primary Identifiers| System | Identifier | Standard System Name | Classification Notes & Provenance |
|---|---|---|---|
| UNSPRIMARY | C10100 | Unified Numbering System | Unified Numbering System standard designation for copper alloys (CDA / SAE / ASTM)Ref: CDA UNS Standard Designations Register (C10100) |
| CDA | Alloy 101 | Copper Development Association Alloy Number | CDA three-digit legacy designationRef: CDA UNS Standard Designations Register (C10100) |
Recognized Commercial Aliases & Trade NamesCOMMON ALIAS
4 Listed| Recognized Name / Alias | Classification | Technical Usage & Context |
|---|---|---|
| Oxygen-Free Electronic Copper | Standard Commercial Name | CDA Standard Commercial Name |
| Oxygen-Free Electronic | Commercial Alias | Colloquial or commercial industry synonym |
| OFE Copper | Commercial Alias | Colloquial or commercial industry synonym |
| C10100 | Commercial Alias | Colloquial or commercial industry synonym |
Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE
12 Applicable Standards| Standards Body | Specification Code | Specification Title / Scope | Relationship Type |
|---|---|---|---|
| ASTM | ASTM B577 | Detection of Cuperous Oxide (Hydrogen Embrittlement Susceptibility) in Copper | Specification Reference |
| ASTM | ASTM B224 | Standard Classification of Coppers | Specification Reference |
| ASTM | ASTM F68 | OXYGEN-FREE COPPER IN WROUGHT FORMS FOR ELECTRON DEVICES | Specification Reference |
| ASTM | ASTM B152/B152M | COPPER SHEET, STRIP, PLATE AND ROLLED BAR | Specification Reference |
| ASTM | ASTM B187/B187M | COPPER BUS BAR, ROD AND SHAPES AND GENERAL PURPOSE ROD, BAR AND SHAPES | Specification Reference |
| ASME | ASME SB187 | COPPER BUS BAR, ROD AND SHAPES AND GENERAL PURPOSE ROD, BAR AND SHAPES | Specification Reference |
| ASME | ASME SB152 | COPPER SHEET, STRIP, PLATE, AND ROLLED BAR | Specification Reference |
| ASTM | ASTM B451 | COPPER FOIL, STRIP AND SHEET FOR PRINTED CIRCUITS AND CARRIER TAPES | Specification Reference |
| ASTM | ASTM B432 | COPPER AND COPPER ALLOY CLAD STEEL PLATE | Specification Reference |
| ASTM | ASTM B170 | OXYGEN-FREE ELECTROLYTIC COPPER-REFINERY SHAPES | Specification Reference |
| ASTM | ASTM B188 | SEAMLESS COPPER BUS PIPE AND TUBE | Specification Reference |
| ASME | ASME SB111 | COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES & FERRULE STOCK | Specification Reference |
Engineering Notice: Applicable specifications establish manufacturing requirements, dimensional tolerances, and test criteria for specific product forms (e.g. bus bar, wire, plate, pipe). They represent applicable technical standards, not alternative or equivalent alloy grades.
Chemical Composition (Weight %)
Elemental limits and values from the cited source. Preserves exact semantic limits (minimums, maximums, and ranges).
| Element | Symbol | Atomic No. | Semantic Basis | Specified Value | Unit | Metallurgical Notes & Qualification | Data Status |
|---|---|---|---|---|---|---|---|
| Copper | Cu | 29 | MINIMUM | ≥ 99.99 | wt% | CDA chemical composition specification limits for C10100: min 99.99 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Lead | Pb | 82 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0005 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Zinc | Zn | 30 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0001 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Iron | Fe | 26 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.001 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Phosphorus | P | 15 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0003 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Silver | Ag | 47 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0025 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Arsenic | As | 33 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0005 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Oxygen | O | 8 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0005 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Antimony | Sb | 51 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0004 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Tellurium | Te | 52 | MAXIMUM | ≤ 0.00 | wt% | CDA chemical composition specification limits for C10100: max 0.0002 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
* Elemental percentages are expressed in weight percent (wt%). Values represent applicable specification limits. Unspecified trace elements are not fabricated or assumed.Preserves exact semantic basis
Property Display UnitsSwitch between Canonical SI and Source / US Customary units:
Physical Properties
Source-specific physical properties. Test temperatures are shown only where reported.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Density | 8.941 g/cm³ | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Density 0.323 lb/cu in. at 68°F (8.941 g/cm³ at 20°C) | 0.323 lb/cu in. at 68°F | Copper Development Association Inc. | VERIFIED |
Thermal & Thermodynamic Properties
Phase change temperatures, thermal conductivity, specific heat, mean coefficients of thermal expansion across standardized temperature ranges, and recommended thermal processing windows.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Liquidus Temperature | 1082.8 °C | TYPICAL | CDA Physical Properties: Liquidus temperature 1981.0 °F (1082.8 °C) | 1981.0 °F | Copper Development Association Inc. | VERIFIED |
| Solidus Temperature | 1082.8 °C | TYPICAL | CDA Physical Properties: Solidus temperature 1981.0 °F (1082.8 °C) | 1981.0 °F | Copper Development Association Inc. | VERIFIED |
| Thermal Conductivity | 391.15 W/(m·K) | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Thermal conductivity 226.0 Btu/(ft·hr·°F) (391.15 W/(m·K) at 20°C) | 226.0 Btu/ sq ft/ ft hr/ °F at 68°F | Copper Development Association Inc. | VERIFIED |
| Coefficient of Thermal Expansion (CTE) | 16.92 µm/(m·K) | TYPICAL | CDA Physical Properties: CTE 9.4 µin/(in·°F) (16.92 µm/(m·K)) over range 68-21210°F | 9.4 10^-6 per °F | Copper Development Association Inc. | VERIFIED |
| Coefficient of Thermal Expansion (CTE) | 17.28 µm/(m·K) | TYPICAL | CDA Physical Properties: CTE 9.6 µin/(in·°F) (17.28 µm/(m·K)) over range 68-39210°F | 9.6 10^-6 per °F | Copper Development Association Inc. | VERIFIED |
| Coefficient of Thermal Expansion (CTE) | 17.64 µm/(m·K) | TYPICAL | CDA Physical Properties: CTE 9.8 µin/(in·°F) (17.64 µm/(m·K)) over range 68-57210°F | 9.8 10^-6 per °F | Copper Development Association Inc. | VERIFIED |
| Specific Heat Capacity | 385.2 J/(kg·K) | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Specific heat 0.092 Btu/(lb·°F) (385.2 J/(kg·K)) | 0.092 Btu/ lb /°F at 68°F | Copper Development Association Inc. | VERIFIED |
| Annealing Temperature Range | 371.1 – 648.9 °C | RANGE | CDA Thermal Treatments: Annealing temperature range 700 - 1200°F (371.1 - 648.9°C) | 700 – 1200 °F | Copper Development Association Inc. | VERIFIED |
| Hot Working Temperature Range | 760 – 871.1 °C | RANGE | CDA Thermal Treatments: Hot working range 1400 - 1600°F (760.0 - 871.1°C) | 1400 – 1600 °F | Copper Development Association Inc. | VERIFIED |
Electrical Properties
Electrical conductivity and resistivity in their reported units and conditions.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Electrical Conductivity | 101 % IACS | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Volume conductivity 101.0 % IACS at 68°F (20°C) | 101.0 % IACS at 68°F | Copper Development Association Inc. | VERIFIED |
Contextual Mechanical Properties & Tempers
Engineering strength, ductility, and hardness values grouped by product form, temper, and section thickness. Mechanical properties are contextual and not isotropic averages.
Elastic & Baseline Mechanical ConstantsSource-specific measurement conditions
Modulus of Elasticity (Tension)
117.2 GPa
CDA Physical Properties: Elastic modulus in tension 17000.0 ksi (117.2 GPa)Modulus of Rigidity
44126.4 MPa
CDA Physical Properties: Shear modulus 6400.0 ksi (44126.4 MPa)Machinability Rating
20 %
CDA Fabrication Properties: Rating relative to Free-Cutting Brass (C36000 = 100%).Forgeability Rating
65 —
CDA Fabrication Properties: Relative forgeability rating.Showing 60 of 60 conditions
| Product Form | Temper / Condition | Section Size | Tensile (UTS) | Yield Strength | Elongation | Shear Strength | Fatigue Strength | Hardness (Scales Preserved) | Status |
|---|---|---|---|---|---|---|---|---|---|
| Flat Products | 1/2 Hard (H02) · 20 °CSource values and qualifiersTensile Strength: 289.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 248.2 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 14 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 289.6 MPa | 248.2 MPa | 14 % | — | — | — | VERIFIED |
| Flat Products | 1/2 Hard (H02)Source values and qualifiersRockwell B Hardness: 40 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 84 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 50 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 89.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 89.6 MPa | 40 HRB84 HRF50 HR30T | VERIFIED |
| Flat Products | 1/4 Hard (H01) · 20 °CSource values and qualifiersTensile Strength: 262 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 262 MPa | 206.8 MPa | 25 % | — | — | — | VERIFIED |
| Flat Products | 1/4 Hard (H01)Source values and qualifiersRockwell B Hardness: 25 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 70 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 36 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 25 HRB70 HRF36 HR30T | VERIFIED |
| Flat Products | 1/4 Hard (H01) · 20 °CSource values and qualifiersTensile Strength: 262 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 262 MPa | 206.8 MPa | 35 % | — | — | — | VERIFIED |
| Flat Products | 1/4 Hard (H01)Source values and qualifiersRockwell B Hardness: 25 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell F Hardness: 70 HRF (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 25 HRB70 HRF | VERIFIED |
| Flat Products | 1/8 Hard (H00) · 20 °CSource values and qualifiersTensile Strength: 248.2 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 248.2 MPa | 193.1 MPa | 40 % | — | — | — | VERIFIED |
| Flat Products | 1/8 Hard (H00)Source values and qualifiersRockwell B Hardness: 10 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell F Hardness: 60 HRF (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 10 HRB60 HRF | VERIFIED |
| Flat Products | 1/8 Hard (H00) · 20 °CSource values and qualifiersTensile Strength: 248.2 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 30 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 248.2 MPa | 193.1 MPa | 30 % | — | — | — | VERIFIED |
| Flat Products | 1/8 Hard (H00)Source values and qualifiersRockwell B Hardness: 10 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 60 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 25 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 10 HRB60 HRF25 HR30T | VERIFIED |
| Flat Products | As Hot Rolled (M20) · 20 °CSource values and qualifiersTensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 234.4 MPa | 68.9 MPa | 45 % | — | — | — | VERIFIED |
| Flat Products | As Hot Rolled (M20)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 45 HRF | VERIFIED |
| Flat Products | As Hot Rolled (M20) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 220.6 MPa | 68.9 MPa | 50 % | — | — | — | VERIFIED |
| Flat Products | As Hot Rolled (M20)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 40 HRF | VERIFIED |
| Flat Products | Extra Spring (H10) · 20 °CSource values and qualifiersTensile Strength: 393 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 365.4 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 4 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 393 MPa | 365.4 MPa | 4 % | — | — | — | VERIFIED |
| Flat Products | Extra Spring (H10)Source values and qualifiersRockwell B Hardness: 62 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 95 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 64 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 62 HRB95 HRF64 HR30T | VERIFIED |
| Flat Products | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 379.2 MPa (TYPICAL)Section Size: .08; Section Size: .08 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: .08; Section Size: .08 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 6 % (TYPICAL)Section Size: .08; Section Size: .08 inCopper Development Association (CDA) — | .08 | 379.2 MPa | 310.3 MPa | 6 % | — | — | — | VERIFIED |
| Flat Products | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 12 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 344.7 MPa | 310.3 MPa | 12 % | — | — | — | VERIFIED |
| Flat Products | Hard (H04)Source values and qualifiersRockwell B Hardness: 50 HRB (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell F Hardness: 90 HRF (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 50 HRB90 HRF | VERIFIED |
| Flat Products | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 6 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 344.7 MPa | 310.3 MPa | 6 % | — | — | — | VERIFIED |
| Flat Products | Hard (H04)Source values and qualifiersRockwell B Hardness: 50 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 90 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 57 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 89.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 89.6 MPa | 50 HRB90 HRF57 HR30T | VERIFIED |
| Flat Products | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 310.3 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | 310.3 MPa | 275.8 MPa | 20 % | — | — | — | VERIFIED |
| Flat Products | Hard (H04)Source values and qualifiersRockwell B Hardness: 45 HRB (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 85 HRF (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | — | — | — | — | — | 45 HRB85 HRF | VERIFIED |
| Flat Products | Nominal Grain Size 0.025 mm (OS025) · 20 °CSource values and qualifiersTensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 75.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 234.4 MPa | 75.8 MPa | 45 % | — | — | — | VERIFIED |
| Flat Products | Nominal Grain Size 0.025 mm (OS025)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 75.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 75.8 MPa | 45 HRF | VERIFIED |
| Flat Products | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 220.6 MPa | 68.9 MPa | 45 % | — | — | — | VERIFIED |
| Flat Products | Nominal Grain Size 0.050 mm (OS050)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 40 HRF | VERIFIED |
| Flat Products | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.25; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 220.6 MPa | 68.9 MPa | 50 % | — | — | — | VERIFIED |
| Flat Products | Nominal Grain Size 0.050 mm (OS050)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.25; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 40 HRF | VERIFIED |
| Flat Products | Spring (H08) · 20 °CSource values and qualifiersTensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 4 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 379.2 MPa | 344.7 MPa | 4 % | — | — | — | VERIFIED |
| Flat Products | Spring (H08)Source values and qualifiersRockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 94 HRF (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 63 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 96.5 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 96.5 MPa | 60 HRB94 HRF63 HR30T | VERIFIED |
| Rod | As Hot Rolled (M20) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 55 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | 220.6 MPa | 68.9 MPa | 55 % | — | — | — | VERIFIED |
| Rod | As Hot Rolled (M20)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | — | — | — | 151.7 MPa | — | 40 HRF | VERIFIED |
| Rod | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.25; Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Section Size: 0.25; Cold Work: 40%; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 10 % (TYPICAL)Section Size: 0.25; Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | 379.2 MPa | 344.7 MPa | 10 % | — | — | — | VERIFIED |
| Rod | Hard (H04)Source values and qualifiersRockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.25; Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell F Hardness: 94 HRF (TYPICAL)Section Size: 0.25; Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — | 0.25 | — | — | — | — | — | 60 HRB94 HRF | VERIFIED |
| Rod | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 310.3 MPa (TYPICAL)Section Size: 2; Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Section Size: 2; Cold Work: 16%; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 2; Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — | 2 | 310.3 MPa | 275.8 MPa | 20 % | — | — | — | VERIFIED |
| Rod | Hard (H04)Source values and qualifiersRockwell B Hardness: 45 HRB (TYPICAL)Section Size: 2; Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Rockwell F Hardness: 85 HRF (TYPICAL)Section Size: 2; Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — | 2 | — | — | — | — | — | 45 HRB85 HRF | VERIFIED |
| Rod | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 330.9 MPa (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 303.4 MPa (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 16 % (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — | 1 | 330.9 MPa | 303.4 MPa | 16 % | — | — | — | VERIFIED |
| Rod | Hard (H04)Source values and qualifiersRockwell B Hardness: 47 HRB (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 87 HRF (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Fatigue Strength: 117.2 MPa (TYPICAL)Section Size: 1; Cold Work: 35%; Section Size: 1 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 1 | — | — | — | — | 117.2 MPa | 47 HRB87 HRF | VERIFIED |
| Rod | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 1; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 55 % (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | 220.6 MPa | 68.9 MPa | 55 % | — | — | — | VERIFIED |
| Rod | Nominal Grain Size 0.050 mm (OS050)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 1; Section Size: 1 inCopper Development Association (CDA) — | 1 | — | — | — | — | — | 40 HRF | VERIFIED |
| Shapes | As Hot Extruded (M30) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | 220.6 MPa | 68.9 MPa | 50 % | — | — | — | VERIFIED |
| Shapes | As Hot Extruded (M30)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | — | — | — | — | — | 45 HRF | VERIFIED |
| Shapes | As Hot Rolled (M20) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | 220.6 MPa | 68.9 MPa | 50 % | — | — | — | VERIFIED |
| Shapes | As Hot Rolled (M20)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | — | — | — | — | — | 45 HRF | VERIFIED |
| Shapes | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 275.8 MPa (TYPICAL)Section Size: 0.5; Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 220.6 MPa (TYPICAL)Section Size: 0.5; Cold Work: 15%; Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 30 % (TYPICAL)Section Size: 0.5; Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | 275.8 MPa | 220.6 MPa | 30 % | — | — | — | VERIFIED |
| Shapes | Hard (H04)Source values and qualifiersRockwell B Hardness: 35 HRB (TYPICAL)Section Size: 0.5; Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | — | — | — | — | — | 35 HRB | VERIFIED |
| Shapes | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.5; Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | 220.6 MPa | 68.9 MPa | 50 % | — | — | — | VERIFIED |
| Shapes | Nominal Grain Size 0.050 mm (OS050)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.5; Section Size: 0.5 inCopper Development Association (CDA) — | 0.5 | — | — | — | — | — | 45 HRF | VERIFIED |
| Tube | Hard Drawn (H80) · 20 °CSource values and qualifiersTensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 8 % (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | 379.2 MPa | 344.7 MPa | 8 % | — | — | — | VERIFIED |
| Tube | Hard Drawn (H80)Source values and qualifiersRockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 95 HRF (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell 30T Hardness: 63 HR30T (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | — | — | — | — | — | 60 HRB95 HRF63 HR30T | VERIFIED |
| Tube | Light Drawn, Light Cold Rolled (H55) · 20 °CSource values and qualifiersTensile Strength: 275.8 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 220.6 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | 275.8 MPa | 220.6 MPa | 25 % | — | — | — | VERIFIED |
| Tube | Light Drawn, Light Cold Rolled (H55)Source values and qualifiersRockwell B Hardness: 35 HRB (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 77 HRF (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell 30T Hardness: 45 HR30T (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | — | — | — | — | — | 35 HRB77 HRF45 HR30T | VERIFIED |
| Tube | Nominal Grain Size 0.025 mm (OS025) · 20 °CSource values and qualifiersTensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 75.8 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | 234.4 MPa | 75.8 MPa | 45 % | — | — | — | VERIFIED |
| Tube | Nominal Grain Size 0.025 mm (OS025)Source values and qualifiersRockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | — | — | — | — | — | 45 HRF | VERIFIED |
| Tube | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.065; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | 220.6 MPa | 68.9 MPa | 45 % | — | — | — | VERIFIED |
| Tube | Nominal Grain Size 0.050 mm (OS050)Source values and qualifiersRockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.065; Section Size: 0.065 inCopper Development Association (CDA) — | 0.065 | — | — | — | — | — | 40 HRF | VERIFIED |
| Wire | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 1.5 % (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — | 0.08 | 379.2 MPa | — | 1.5 % | — | — | — | VERIFIED |
| Wire | Nominal Grain Size 0.050 mm (OS050) · 20 °CSource values and qualifiersTensile Strength: 241.3 MPa (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — | 0.08 | 241.3 MPa | — | 35 % | — | — | — | VERIFIED |
| Wire | Spring (H08) · 20 °CSource values and qualifiersTensile Strength: 455.1 MPa (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 1.5 % (TYPICAL)Section Size: 0.08; Section Size: 0.08 inCopper Development Association (CDA) — | 0.08 | 455.1 MPa | — | 1.5 % | — | — | — | VERIFIED |
Hardness Integrity Notice: Rockwell B (HRB), Rockwell F (HRF), and Superficial 30T (HR30T) scales are reported on their measured scales without cross-scale mathematical conversion.
Source: See fact-level citations
Processing & Fabrication Characteristics
Machining, joining, forming, and thermal processing ratings cataloged from the cited authoritative technical reference.
Machinability
Machinability rating: 20% relative to free-cutting brass (C36000 = 100%). Forgeability rating: 65.
Weldability & Joining
Soldering: Excellent; Brazing: Excellent; Oxyacetylene Welding: Fair; Gas Shielded Arc Welding: Good; Coated Metal Arc Welding: Not Recommended; Spot Weld: Not Recommended; Seam Weld: Not Recommended; Butt Weld: Good
Heat Treatment & Working Ranges
Annealing temperature range: 371.1°C to 648.9°C (700°F - 1200°F). Hot working temperature range: 760.0°C to 871.1°C (1400°F - 1600°F).
Forming & Cold Working
Capacity for Being Cold Worked: Excellent. Capacity for Being Hot Formed: Excellent.
Comparable Grades & Cross-References
Carefully classified cross-reference relationships for C10100 Oxygen-Free Electronic (OFE) Copper. Comparable does not mean equivalent.
| Related Material | Family | Relationship Classification | Metallurgical Notes & Differences | Status | Action |
|---|---|---|---|---|---|
| C10200 Oxygen-Free (OF) Copper | Copper Alloys | Close Equivalent | C10100 (OFE) is 99.99% pure with oxygen strictly <5 ppm, whereas C10200 (OF) is 99.95% pure with oxygen <10 ppm. Both exhibit identical 101% IACS conductivity; C10100 is specified when ultra-high vacuum or glass-to-metal sealing is critical.Direct commercial substitution is generally permissible subject to certified Mill Test Report (MTR) confirmation for critical applications. | VERIFIED | Side-by-Side Compare → |
| C11000 ETP Copper | Copper Alloys | Nearest Alternative | C10100 is vacuum-melted oxygen-free copper, eliminating the cuprous oxide (Cu2O) inclusions found in C11000 ETP Copper. This provides immunity to hydrogen embrittlement during brazing/welding above 370°C.Design parameters (weldability, hardenability, fatigue limit) must be re-evaluated for the specific application. | VERIFIED | Side-by-Side Compare → |
Sources & Provenance Trail
Reference publications and standards organization registers cited across this material record.
Copper Development Association Inc.CDA Alloy C10100 Property & Specification Profile
AUTHORITATIVE BODY
Copper Development Association authoritative technical reference profile for C10100 Oxygen-Free Electronic (OFE) Copper.
Issuing Body: Copper Development Association (CDA)View Source Record ↗
Copper Development Association Inc.CDA UNS Standard Designations Register (C10100)
AUTHORITATIVE BODY
Unified Numbering System (UNS) designation registration register confirming active C10100 status.
Issuing Body: Copper Development Association (CDA)View Source Record ↗
Intellectual Property & Provenance Notice: Mat Grades cites technical literature from recognized industry associations and standards organizations. Underlying technical standards and publication data remain the intellectual property of their respective issuing organizations.