C19400 High-Strength Modified Copper (HSM Copper)
Primary Designation:UNS C19400
Aliases:
HSM CopperOlin 194C19400
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:5 composition elements and 82 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
8.913 g/cm³TYPICAL · at 20 °C
Electrical Conductivity
65 % IACSTYPICAL · at 20 °C
Thermal Conductivity
259.61 W/(m·K)TYPICAL · at 20 °C
Specific Heat Capacity
385.2 J/(kg·K)TYPICAL · at 20 °C
Melting Range (Solidus / Liquidus)
1082.2 – 1087.8 °C1980.0 – 1990.0 °F
Solidus: 1082.2°C | Liquidus: 1087.8°CComposition Excerpt
Cu ≥ 97 wt%Copper (min)
Standard Elemental Basis: MINEngineering Summary
UNS C19400 High-Strength Modified Copper (97.0% Cu min, 2.1-2.6% Fe, 0.015-0.15% P, 0.05-0.20% Zn) is an engineered electronic alloy combining high thermal and electrical conductivity (65% IACS) with superior resistance to thermal softening and stress relaxation. Standardized for semiconductor leadframes, automotive connectors, and circuit breaker components.
Documented Product Applications (Cited CDA Reference Profile)
- ›Automotive: Electrical Connectors - Automotive
- ›Cable Wrap: Conductivity (Thermal)
- ›Cable Wrap: Corrosion Resistance
- ›Cable Wrap: Durability
- ›Cable Wrap: Forming Characteristics
- ›Cable Wrap: Mechanical Properties
- ›Circuit Breaker Components: Conductivity (Electrical)
- ›Circuit Breaker Components: Conductivity (Thermal)
- ›Circuit Breaker Components: Corrosion Resistance
- ›Circuit Breaker Components: Mechanical Properties
- ›Circuit Breaker Components: Softening Resistance
- ›Circuit Breaker Components: Solderability
Recognized Aliases
Source-backed commercial trade name and short designations cataloged in canonical data.
HSM CopperOlin 194C19400
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 | C19400 | Unified Numbering System | Unified Numbering System standard designation for copper alloys (CDA / SAE / ASTM)Ref: CDA UNS Standard Designations Register (C19400) |
| CDA | Alloy 194 | Copper Development Association Alloy Number | CDA three-digit legacy designationRef: CDA UNS Standard Designations Register (C19400) |
Recognized Commercial Aliases & Trade NamesCOMMON ALIAS
4 Listed| Recognized Name / Alias | Classification | Technical Usage & Context |
|---|---|---|
| High Strength Modified Copper | Standard Commercial Name | CDA Standard Commercial Name |
| HSM Copper | Commercial Alias | Colloquial or commercial industry synonym |
| Olin 194 | Commercial Alias | Colloquial or commercial industry synonym |
| C19400 | Commercial Alias | Colloquial or commercial industry synonym |
Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE
7 Applicable Standards| Standards Body | Specification Code | Specification Title / Scope | Relationship Type |
|---|---|---|---|
| ASTM | ASTM B465 | COPPER-IRON ALLOY PLATE, SHEET, STRIP, AND ROLLED BAR | Specification Reference |
| ASTM | ASTM B956/B956M | WELDED COPPER AND COPPER-ALLOY CONDENSER AND HEAT EXCHANGER TUBES WITH INTEGRAL FINS | Specification Reference |
| ASTM | ASTM B694 | COPPER, COPPER ALLOY AND COPPER-CLAD STAINLESS STEEL SHEET AND STRIP FOR ELECTRICAL CABLE SHIELDING | Specification Reference |
| ASTM | ASTM B888/B88M | COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS | Specification Reference |
| ASME | ASME SB543 | WELDED COPPER AND COPPER ALLOY TUBE | Specification Reference |
| ASTM | ASTM B543/B543M | WELDED COPPER AND COPPER ALLOY HEAT EXCHANGER TUBE | Specification Reference |
| ASME | ASME SB956 | Tube, Welded, Condenser, Heat Exchanger, w/ Integral Fins | 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 | ≥ 97.00 | wt% | CDA chemical composition specification limits for C19400: min 97.0 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Lead | Pb | 82 | MAXIMUM | ≤ 0.03 | wt% | CDA chemical composition specification limits for C19400: max 0.03 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Zinc | Zn | 30 | RANGE | 0.05 – 0.20 | wt% | CDA chemical composition specification limits for C19400: 0.05 - 0.2 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Iron | Fe | 26 | RANGE | 2.10 – 2.60 | wt% | CDA chemical composition specification limits for C19400: 2.1 - 2.6 wt%.Ref: Copper Development Association (CDA) | VERIFIED |
| Phosphorus | P | 15 | RANGE | 0.01 – 0.15 | wt% | CDA chemical composition specification limits for C19400: 0.015 - 0.15 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 | 8.913 g/cm³ | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Density 0.322 lb/cu in. at 68°F (8.913 g/cm³ at 20°C) | 0.322 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 | 1087.8 °C | TYPICAL | CDA Physical Properties: Liquidus temperature 1990.0 °F (1087.8 °C) | 1990.0 °F | Copper Development Association Inc. | VERIFIED |
| Solidus Temperature | 1082.2 °C | TYPICAL | CDA Physical Properties: Solidus temperature 1980.0 °F (1082.2 °C) | 1980.0 °F | Copper Development Association Inc. | VERIFIED |
| Thermal Conductivity | 259.61 W/(m·K) | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Thermal conductivity 150.0 Btu/(ft·hr·°F) (259.61 W/(m·K) at 20°C) | 150.0 Btu/ sq ft/ ft hr/ °F at 68°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 | 65 % IACS | TYPICAL | Test Temp: 20 °CCDA Physical Properties: Volume conductivity 65.0 % IACS at 68°F (20°C) | 65.0 % 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)
120.7 GPa
CDA Physical Properties: Elastic modulus in tension 17500.0 ksi (120.7 GPa)Modulus of Rigidity
45505.4 MPa
CDA Physical Properties: Shear modulus 6600.0 ksi (45505.4 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 28 of 28 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: 413.7 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: 9 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 413.7 MPa | 365.4 MPa | 9 % | — | — | — | VERIFIED |
| Flat Products | 1/2 Hard (H02)Source values and qualifiersRockwell B Hardness: 68 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 66 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 68 HRB66 HR30T | VERIFIED |
| Flat Products | Extra Hard (H06) · 20 °CSource values and qualifiersTensile Strength: 482.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 468.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 3 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 482.6 MPa | 468.8 MPa | 3 % | — | — | — | VERIFIED |
| Flat Products | Extra Hard (H06)Source values and qualifiersRockwell B Hardness: 74 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 71 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 74 HRB71 HR30T | VERIFIED |
| Flat Products | Extra Spring (H10) · 20 °CSource values and qualifiersTensile Strength: 524 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 503.3 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 2 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 524 MPa | 503.3 MPa | 2 % | — | — | — | VERIFIED |
| Flat Products | Extra Spring (H10)Source values and qualifiersRockwell B Hardness: 77 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 74 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 144.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 144.8 MPa | 77 HRB74 HR30T | VERIFIED |
| Flat Products | Hard (H04) · 20 °CSource values and qualifiersTensile Strength: 461.9 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 434.4 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 | 461.9 MPa | 434.4 MPa | 4 % | — | — | — | VERIFIED |
| Flat Products | Hard (H04)Source values and qualifiersRockwell B Hardness: 73 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 69 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 144.8 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 144.8 MPa | 73 HRB69 HR30T | VERIFIED |
| Flat Products | Light Anneal (O50) · 20 °CSource values and qualifiersTensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.025; Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 29 % (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — | 0.025 | 344.7 MPa | 206.8 MPa | 29 % | — | — | — | VERIFIED |
| Flat Products | Light Anneal (O50)Source values and qualifiersRockwell B Hardness: 45 HRB (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — | 0.025 | — | — | — | — | — | 45 HRB | VERIFIED |
| Flat Products | Soft Anneal (O60) · 20 °CSource values and qualifiersTensile Strength: 310.3 MPa (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 165.5 MPa (TYPICAL)Section Size: 0.025; Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 32 % (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — | 0.025 | 310.3 MPa | 165.5 MPa | 32 % | — | — | — | VERIFIED |
| Flat Products | Soft Anneal (O60)Source values and qualifiersRockwell B Hardness: 38 HRB (TYPICAL)Section Size: 0.025; Section Size: 0.025 inCopper Development Association (CDA) — Fatigue Strength: 110.3 MPa (TYPICAL)Section Size: 0.025; Section Size: 0.025 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.025 | — | — | — | — | 110.3 MPa | 38 HRB | VERIFIED |
| Flat Products | Spring (H08) · 20 °CSource values and qualifiersTensile Strength: 503.3 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 489.5 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 2 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 503.3 MPa | 489.5 MPa | 2 % | — | — | — | VERIFIED |
| Flat Products | Spring (H08)Source values and qualifiersRockwell B Hardness: 75 HRB (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 72 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 151.7 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; 10^8 cycles endurance limitCopper Development Association (CDA) — | 0.04 | — | — | — | — | 151.7 MPa | 75 HRB72 HR30T | VERIFIED |
| Flat Products | Super Spring (H14) · 20 °CSource values and qualifiersTensile Strength: 551.6 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 503.3 MPa (TYPICAL)Section Size: 0.04; Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 1 % (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | 551.6 MPa | 503.3 MPa | 1 % | — | — | — | VERIFIED |
| Flat Products | Super Spring (H14)Source values and qualifiersRockwell 30T Hardness: 73 HR30T (TYPICAL)Section Size: 0.04; Section Size: 0.04 inCopper Development Association (CDA) — | 0.04 | — | — | — | — | — | 73 HR30T | VERIFIED |
| Tube | 1/2 Hard (H02) · 20 °CSource values and qualifiersTensile Strength: 399.9 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 379.2 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 9 % (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 399.9 MPa | 379.2 MPa | 9 % | — | — | — | VERIFIED |
| Tube | 1/2 Hard (H02)Source values and qualifiersRockwell B Hardness: 61 HRB (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Rockwell 30T Hardness: 60 HR30T (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 61 HRB60 HR30T | VERIFIED |
| Tube | As-Welded from Extra Spring Strip (WM10) · 20 °CSource values and qualifiersTensile Strength: 524 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 503.3 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 1 % (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 524 MPa | 503.3 MPa | 1 % | — | — | — | VERIFIED |
| Tube | As-Welded from Extra Spring Strip (WM10)Source values and qualifiersRockwell B Hardness: 76 HRB (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Rockwell 30T Hardness: 69 HR30T (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 76 HRB69 HR30T | VERIFIED |
| Tube | As-Welded from Hard Strip (WM04) · 20 °CSource values and qualifiersTensile Strength: 448.2 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 434.4 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 4 % (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 448.2 MPa | 434.4 MPa | 4 % | — | — | — | VERIFIED |
| Tube | As-Welded from Hard Strip (WM04)Source values and qualifiersRockwell B Hardness: 73 HRB (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Rockwell 30T Hardness: 66 HR30T (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 73 HRB66 HR30T | VERIFIED |
| Tube | Hard Drawn (H80) · 20 °CSource values and qualifiersTensile Strength: 468.8 MPa (TYPICAL)Section Size: 0.035; Cold Work: 35%; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 455.1 MPa (TYPICAL)Section Size: 0.035; Cold Work: 35%; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 2 % (TYPICAL)Section Size: 0.035; Cold Work: 35%; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 468.8 MPa | 455.1 MPa | 2 % | — | — | — | VERIFIED |
| Tube | Hard Drawn (H80)Source values and qualifiersRockwell B Hardness: 73 HRB (TYPICAL)Section Size: 0.035; Cold Work: 35%; Section Size: 0.035 inCopper Development Association (CDA) — Rockwell 30T Hardness: 66 HR30T (TYPICAL)Section Size: 0.035; Cold Work: 35%; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 73 HRB66 HR30T | VERIFIED |
| Tube | Light Anneal (O50) · 20 °CSource values and qualifiersTensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 16 % (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 344.7 MPa | 206.8 MPa | 16 % | — | — | — | VERIFIED |
| Tube | Light Anneal (O50)Source values and qualifiersRockwell B Hardness: 45 HRB (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 45 HRB | VERIFIED |
| Tube | Soft Anneal (O60) · 20 °CSource values and qualifiersTensile Strength: 310.3 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 165.5 MPa (TYPICAL)Section Size: 0.035; Section Size: 0.035 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 28 % (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | 310.3 MPa | 165.5 MPa | 28 % | — | — | — | VERIFIED |
| Tube | Soft Anneal (O60)Source values and qualifiersRockwell B Hardness: 38 HRB (TYPICAL)Section Size: 0.035; Section Size: 0.035 inCopper Development Association (CDA) — | 0.035 | — | — | — | — | — | 38 HRB | 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: Good; Gas Shielded Arc Welding: Excellent; 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 C19400 High-Strength Modified Copper (HSM Copper). Comparable does not mean equivalent.
| Related Material | Family | Relationship Classification | Metallurgical Notes & Differences | Status | Action |
|---|---|---|---|---|---|
| C11000 ETP Copper | Copper Alloys | Commonly Compared | C19400 (Cu-Fe-P) provides superior resistance to softening at elevated soldering temperatures and higher yield strength for electronic leadframes, with 65% IACS conductivity vs 101% for C11000.Materials serve different design priorities (e.g. higher strength vs superior corrosion resistance or cost). | VERIFIED | Side-by-Side Compare → |
| C51000 Phosphor Bronze 5% A | Copper Alloys | Commonly Compared | C19400 provides higher electrical conductivity (65% vs 15% IACS) for high-current electronic terminals, whereas C51000 provides higher fatigue endurance for flexible spring contacts.Materials serve different design priorities (e.g. higher strength vs superior corrosion resistance or cost). | 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 C19400 Property & Specification Profile
AUTHORITATIVE BODY
Copper Development Association authoritative technical reference profile for C19400 High-Strength Modified Copper (HSM Copper).
Issuing Body: Copper Development Association (CDA)View Source Record ↗
Copper Development Association Inc.CDA UNS Standard Designations Register (C19400)
AUTHORITATIVE BODY
Unified Numbering System (UNS) designation registration register confirming active C19400 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.