VERIFIED(Source-Verified)

C11000 ETP Copper

Primary Designation:UNS C11000

Aliases:

Electrolytic Tough PitchETP

Mat Grades internal verification confirms source-backed fidelity and data integrity. It does not constitute external certification or guaranteed lot conformity. Read engineering disclaimer →

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Data Completeness:1 composition elements and 199 condition-specific property values cataloged.

Omitted fields represent unverified properties. "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

Range: 8.885 – 8.941 g/cm³

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)

1065 – 1082.8 °C1949 – 1981 °F

Solidus: 1065°C | Liquidus: 1082.8°C

Composition Excerpt

Cu ≥ 99.9 wt%Cu purity (includes Ag)

Standard Elemental Basis: MIN

Engineering Summary

UNS C11000 Electrolytic Tough Pitch (ETP) Copper is commercially pure unalloyed copper standardized with a minimum copper content of 99.90 wt% (including silver). The material provides high electrical conductivity (101% IACS) and thermal conductivity (391.15 W/(m·K)) across standard annealed and cold-worked temper conditions.

C11000 ETP Copper Documented Applications

›Architectural: Building fronts, downspouts, flashing, gutters, roofing, screening
›Automotive: Gaskets, radiators
›Electrical: Busbars, bus conductors, cables, commutators, contacts, switches, terminals
›Hardware: Rivets, burrs, clad steel, nails, tacks
›Industrial: Heat exchangers, chemical process equipment, circuit foil, printing rolls

Recognized Aliases

Source-backed commercial trade name and short designations cataloged in canonical data.

Electrolytic Tough PitchETP

C11000 ETP Copper Specifications & Designations

Standard Designations & Applicable Specifications — Semantically classified designations distinguishing primary standard identifiers, commercial trade names, and applicable specification references.

Direct Standard DesignationsDIRECT DESIGNATION

1 Primary Identifier

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System	Identifier	Standard System Name	Classification Notes & Provenance
UNSPRIMARY	C11000	Unified Numbering System	Unified Numbering System for Copper and Copper Alloys (CDA / SAE / ASTM)Ref: CDA UNS Standard Designations for Wrought Coppers (C10100 - C15999)

Recognized Commercial Aliases & Trade NamesCOMMON ALIAS

2 Listed

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Recognized Name / Alias	Classification	Technical Usage & Context
Electrolytic Tough Pitch	Commercial Trade Name	CDA Standard Commercial Name
ETP	Commercial Trade Name	CDA Standard Short Designation

Applicable Specifications & Product Form ReferencesSPECIFICATION REFERENCE

7 Applicable Standards

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Standards Body	Specification Code	Specification Title / Scope	Relationship Type
ASTM	ASTM B187/B187M	Copper, Bus Bar, Rod, and Shapes and General Purpose Rod, Bar, and Shapes	Specification Reference
ASTM	ASTM B152/B152M	Copper Sheet, Strip, Plate, and Rolled Bar	Specification Reference
ASTM	ASTM B224	Standard Classification of Coppers	Specification Reference
ASTM	ASTM B188	Seamless Copper Bus Pipe and Tube	Specification Reference
ASME	ASME SB187	Copper Bus Bar, Rod and Shapes and General Purpose Rod, Bar and Shapes	Specification Reference
SAE	SAE J461	Wrought and Cast Copper Alloys	Specification Reference
AMS	AMS 4500	Copper Sheet, Strip and Plate, Soft Annealed	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.

C11000 ETP Copper Chemical Composition

Chemical Composition (Weight %) — Elemental limits and values from the cited source. Preserves exact semantic limits (minimums, maximums, and ranges).

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Element	Symbol	Atomic No.	Semantic Basis	Specified Value	Unit	Metallurgical Notes & Qualification	Data Status
Copper	Cu	29	MINIMUM	≥ 99.90	wt%	Cu value includes Ag. Oxygen and trace elements may vary depending on the process. High conductivity copper min 100% IACS in annealed condition (CDA Chemical Composition section).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:

C11000 ETP Copper Physical Properties

Source-specific physical properties. Test temperatures are shown only where reported.

2 Parameters

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Property Parameter	Canonical SI Value	Semantic Basis	Test Temperature / Context Range	Source Raw Reference	Source Reference	Status
Density	8.885 – 8.941 g/cm³	TYPICAL	Test Temp: 20 °CCDA Physical Properties section: Measured at 68°F (20°C). Footnote 1 specifies actual range 0.321 - 0.323 lb/cu in. (8.885 - 8.941 g/cm³)	0.321 – 0.323 lb/cu in.	Copper Development Association Inc.	VERIFIED
Specific Gravity	8.91 —	TYPICAL	CDA Physical Properties section: Specific Gravity at 68°F (20°C)	8.91 —	Copper Development Association Inc.	VERIFIED

C11000 ETP Copper Thermal & Thermodynamic Properties

Phase change temperatures, thermal conductivity, specific heat, mean coefficients of thermal expansion across standardized temperature ranges, and recommended thermal processing windows.

9 Parameters

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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 section: Melting Point - Liquidus	1981 °F	Copper Development Association Inc.	VERIFIED
Solidus Temperature	1065 °C	TYPICAL	CDA Physical Properties section: Melting Point - Solidus	1949 °F	Copper Development Association Inc.	VERIFIED
Thermal Conductivity	391.15 W/(m·K)	TYPICAL	Test Temp: 20 °CCDA Physical Properties section: Measured at 68°F (20°C). Raw: Btu/sq ft/ft hr/°F	226 Btu/(hr·ft·°F)	Copper Development Association Inc.	VERIFIED
Coefficient of Thermal Expansion (68-212°F)	16.92 µm/(m·K)	TYPICAL	CDA Physical Properties section: Mean CTE 68-212°F (20-100°C), 10 to -6 power per °F	9.4 10^-6/°F	Copper Development Association Inc.	VERIFIED
Coefficient of Thermal Expansion (68-392°F)	17.28 µm/(m·K)	TYPICAL	CDA Physical Properties section: Mean CTE 68-392°F (20-200°C), 10 to -6 power per °F	9.6 10^-6/°F	Copper Development Association Inc.	VERIFIED
Coefficient of Thermal Expansion (68-572°F)	17.64 µm/(m·K)	TYPICAL	CDA Physical Properties section: Mean CTE 68-572°F (20-300°C), 10 to -6 power per °F	9.8 10^-6/°F	Copper Development Association Inc.	VERIFIED
Specific Heat Capacity	385.2 J/(kg·K)	TYPICAL	Test Temp: 20 °CCDA Physical Properties section: Specific Heat at 68°F (20°C)	0.092 Btu/(lb·°F)	Copper Development Association Inc.	VERIFIED
Annealing Temperature Range	371.1 – 648.9 °C	RANGE	CDA Thermal Properties section: 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 Properties section: Hot working temperature range 1400 - 1600°F (760.0 - 871.1°C)	1400 – 1600 °F	Copper Development Association Inc.	VERIFIED

C11000 ETP Copper Electrical Properties

Electrical conductivity and resistivity in their reported units and conditions.

1 Parameters

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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 section: Measured at 68°F (20°C), volume and weight basis	101 % IACS	Copper Development Association Inc.	VERIFIED

C11000 ETP Copper Mechanical Properties

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 in Tension

117210.9 MPa

CDA Physical Properties section: Modulus of Elasticity in Tension

Modulus of Rigidity

44126.4 MPa

CDA Physical Properties section: Modulus of Rigidity (Tension Modulus in Shear)

Machinability Rating

20 %

CDA Fabrication Properties section: Relative to Free-Cutting Brass (C36000) = 100%

Forgeability Rating

65 —

CDA Fabrication Properties section: Forgeability Rating

Product Form:

Temper / Condition:

Showing 33 of 33 conditions

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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 °C Source values and qualifiers Tensile Strength: 289.6 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Elongation: 14 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 40 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 84 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 50 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 179.3 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 89.6 MPa (TYPICAL)Section Size: 0.04 in; Fatigue endurance at 100 x 10^6 cyclesCopper Development Association (CDA) — H02	0.04 in	289.6 MPa	—	14 %	179.3 MPa	89.6 MPa	40 HRB84 HRF50 HR30T	VERIFIED
Flat Products	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 262 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell B Hardness: 25 HRB (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell F Hardness: 70 HRF (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Shear Strength: 172.4 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Ultimate Tensile Strength in Shear: 172.4 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — H01	0.025 in	262 MPa	206.8 MPa	35 %	172.4 MPa	—	25 HRB70 HRF	VERIFIED
Flat Products	1/4 Hard (H01) · 20 °C Source values and qualifiers Tensile Strength: 262 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 206.8 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 25 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 70 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 36 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 172.4 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — H01	0.04 in	262 MPa	206.8 MPa	25 %	172.4 MPa	—	25 HRB70 HRF36 HR30T	VERIFIED
Flat Products	1/8 Hard (H00) · 20 °C Source values and qualifiers Tensile Strength: 248.2 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 40 % (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell B Hardness: 10 HRB (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell F Hardness: 60 HRF (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Shear Strength: 172.4 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — H00	0.025 in	248.2 MPa	193.1 MPa	40 %	172.4 MPa	—	10 HRB60 HRF	VERIFIED
Flat Products	1/8 Hard (H00) · 20 °C Source values and qualifiers Tensile Strength: 248.2 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 193.1 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 30 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 10 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 60 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 25 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 172.4 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — H00	0.04 in	248.2 MPa	193.1 MPa	30 %	172.4 MPa	—	10 HRB60 HRF25 HR30T	VERIFIED
Flat Products	As Hot Rolled (M20) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — M20	0.025 in	220.6 MPa	68.9 MPa	50 %	151.7 MPa	—	40 HRF	VERIFIED
Flat Products	As Hot Rolled (M20) · 20 °C Source values and qualifiers Tensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 158.6 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — M20	0.04 in	234.4 MPa	68.9 MPa	45 %	158.6 MPa	—	45 HRF	VERIFIED
Flat Products	Extra Spring (H10) · 20 °C Source values and qualifiers Tensile Strength: 393 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 365.4 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 4 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 62 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 95 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 64 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 199.9 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — H10	0.04 in	393 MPa	365.4 MPa	4 %	199.9 MPa	—	62 HRB95 HRF64 HR30T	VERIFIED
Flat Products	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.24 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: 0.24 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 12 % (TYPICAL)Section Size: 0.24 inCopper Development Association (CDA) — Ultimate Tensile Strength in Shear: 193.1 MPa (TYPICAL)Section Size: 0.24 inCopper Development Association (CDA) — H04	0.24 in	344.7 MPa	310.3 MPa	12 %	—	—	—	VERIFIED
Flat Products	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 6 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 50 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 90 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 57 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 193.1 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Ultimate Tensile Strength in Shear: 193.1 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — H04	0.04 in	344.7 MPa	310.3 MPa	6 %	193.1 MPa	—	50 HRB90 HRF57 HR30T	VERIFIED
Flat Products	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 310.3 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Rockwell B Hardness: 45 HRB (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 85 HRF (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 179.3 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — H04	1 in	310.3 MPa	275.8 MPa	20 %	179.3 MPa	—	45 HRB85 HRF	VERIFIED
Flat Products	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 344.7 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 310.3 MPa (TYPICAL)Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 12 % (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell B Hardness: 50 HRB (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell F Hardness: 90 HRF (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Shear Strength: 193.1 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — H04	0.025 in	344.7 MPa	310.3 MPa	12 %	193.1 MPa	—	50 HRB90 HRF	VERIFIED
Flat Products	Nominal Grain Size 0.025 mm (OS025) · 20 °C Source values and qualifiers Tensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 75.8 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 158.6 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 75.8 MPa (TYPICAL)Section Size: 0.04 in; Fatigue endurance at 100 x 10^6 cyclesCopper Development Association (CDA) — OS025	0.04 in	234.4 MPa	75.8 MPa	45 %	158.6 MPa	75.8 MPa	45 HRF	VERIFIED
Flat Products	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.025 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.025 inCopper Development Association (CDA) — OS050	0.025 in	220.6 MPa	68.9 MPa	50 %	151.7 MPa	—	40 HRF	VERIFIED
Flat Products	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — OS050	0.04 in	220.6 MPa	68.9 MPa	45 %	151.7 MPa	—	40 HRF	VERIFIED
Flat Products	Spring (H08) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Section Size: 0.04 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 4 % (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell B Hardness: 60 HRB (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell F Hardness: 94 HRF (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Rockwell 30T Hardness: 63 HR30T (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Shear Strength: 199.9 MPa (TYPICAL)Section Size: 0.04 inCopper Development Association (CDA) — Fatigue Strength: 96.5 MPa (TYPICAL)Section Size: 0.04 in; Fatigue endurance at 100 x 10^6 cyclesCopper Development Association (CDA) — H08	0.04 in	379.2 MPa	344.7 MPa	4 %	199.9 MPa	96.5 MPa	60 HRB94 HRF63 HR30T	VERIFIED
Rod	As Hot Rolled (M20) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Elongation: 55 % (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — M20	1 in	220.6 MPa	—	55 %	151.7 MPa	—	40 HRF	VERIFIED
Rod	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 330.9 MPa (TYPICAL)Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 303.4 MPa (TYPICAL)Cold Work: 35%; Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 16 % (TYPICAL)Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Rockwell B Hardness: 47 HRB (TYPICAL)Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 87 HRF (TYPICAL)Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 186.2 MPa (TYPICAL)Cold Work: 35%; Section Size: 1 inCopper Development Association (CDA) — Fatigue Strength: 117.2 MPa (TYPICAL)Cold Work: 35%; Section Size: 1 in; Fatigue endurance at 100 x 10^6 cyclesCopper Development Association (CDA) — H04	1 in	330.9 MPa	303.4 MPa	16 %	186.2 MPa	117.2 MPa	47 HRB87 HRF	VERIFIED
Rod	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 310.3 MPa (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 275.8 MPa (TYPICAL)Cold Work: 16%; Section Size: 2 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 20 % (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Rockwell B Hardness: 45 HRB (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Rockwell F Hardness: 85 HRF (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Shear Strength: 179.3 MPa (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — Torsion Modulus: 44.1 MPa (TYPICAL)Cold Work: 16%; Section Size: 2 inCopper Development Association (CDA) — H04	2 in	310.3 MPa	275.8 MPa	20 %	179.3 MPa	—	45 HRB85 HRF	VERIFIED
Rod	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.25 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 10 % (TYPICAL)Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell B Hardness: 60 HRB (TYPICAL)Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Rockwell F Hardness: 94 HRF (TYPICAL)Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — Shear Strength: 199.9 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.25 inCopper Development Association (CDA) — H04	0.25 in	379.2 MPa	344.7 MPa	10 %	199.9 MPa	—	60 HRB94 HRF	VERIFIED
Rod	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 1 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 55 % (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 1 inCopper Development Association (CDA) — OS050	1 in	220.6 MPa	68.9 MPa	55 %	151.7 MPa	—	40 HRF	VERIFIED
Shapes	As Hot Extruded (M30) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — M30	0.5 in	220.6 MPa	—	50 %	151.7 MPa	—	40 HRF	VERIFIED
Shapes	As Hot Rolled (M20) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — M20	0.5 in	220.6 MPa	68.9 MPa	50 %	151.7 MPa	—	40 HRF	VERIFIED
Shapes	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 275.8 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 220.6 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 30 % (TYPICAL)Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — Rockwell B Hardness: 35 HRB (TYPICAL)Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — Ultimate Tensile Strength in Shear: 179.3 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.5 inCopper Development Association (CDA) — H04	0.5 in	275.8 MPa	220.6 MPa	30 %	—	—	35 HRB	VERIFIED
Shapes	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.5 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 50 % (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.5 inCopper Development Association (CDA) — OS050	0.5 in	220.6 MPa	68.9 MPa	50 %	151.7 MPa	—	40 HRF	VERIFIED
Tube	Hard Drawn (H80) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Cold Work: 40%Copper Development Association (CDA) — Elongation: 8 % (TYPICAL)Cold Work: 40%Copper Development Association (CDA) — Ultimate Tensile Strength in Shear: 199.9 MPa (TYPICAL)Cold Work: 40%Copper Development Association (CDA) — H80	—	379.2 MPa	—	8 %	—	—	—	VERIFIED
Tube	Hard Drawn (H80) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 344.7 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 8 % (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell B Hardness: 60 HRB (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 95 HRF (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell 30T Hardness: 63 HR30T (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — Shear Strength: 199.9 MPa (TYPICAL)Cold Work: 40%; Section Size: 0.065 inCopper Development Association (CDA) — H80	0.065 in	379.2 MPa	344.7 MPa	8 %	199.9 MPa	—	60 HRB95 HRF63 HR30T	VERIFIED
Tube	Light Drawn, Light Cold Rolled (H55) · 20 °C Source values and qualifiers Tensile Strength: 275.8 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 220.6 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 25 % (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell B Hardness: 35 HRB (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 77 HRF (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — Rockwell 30T Hardness: 45 HR30T (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — Shear Strength: 179.3 MPa (TYPICAL)Cold Work: 15%; Section Size: 0.065 inCopper Development Association (CDA) — H55	0.065 in	275.8 MPa	220.6 MPa	25 %	179.3 MPa	—	35 HRB77 HRF45 HR30T	VERIFIED
Tube	Nominal Grain Size 0.025 mm (OS025) · 20 °C Source values and qualifiers Tensile Strength: 234.4 MPa (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 75.8 MPa (TYPICAL)Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 45 HRF (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Shear Strength: 158.6 MPa (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — OS025	0.065 in	234.4 MPa	75.8 MPa	45 %	158.6 MPa	—	45 HRF	VERIFIED
Tube	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 220.6 MPa (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Yield Strength (0.5% Ext): 68.9 MPa (TYPICAL)Section Size: 0.065 in; Yield strength at 0.5% extension under loadCopper Development Association (CDA) — Elongation: 45 % (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Rockwell F Hardness: 40 HRF (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — Shear Strength: 151.7 MPa (TYPICAL)Section Size: 0.065 inCopper Development Association (CDA) — OS050	0.065 in	220.6 MPa	68.9 MPa	45 %	151.7 MPa	—	40 HRF	VERIFIED
Wire	Hard (H04) · 20 °C Source values and qualifiers Tensile Strength: 379.2 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 1.5 % (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Shear Strength: 199.9 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — H04	0.08 in	379.2 MPa	—	1.5 %	199.9 MPa	—	—	VERIFIED
Wire	Nominal Grain Size 0.050 mm (OS050) · 20 °C Source values and qualifiers Tensile Strength: 241.3 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 35 % (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Shear Strength: 165.5 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — OS050	0.08 in	241.3 MPa	—	35 %	165.5 MPa	—	—	VERIFIED
Wire	Spring (H08) · 20 °C Source values and qualifiers Tensile Strength: 455.1 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Elongation: 1.5 % (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — Shear Strength: 227.5 MPa (TYPICAL)Section Size: 0.08 inCopper Development Association (CDA) — H08	0.08 in	455.1 MPa	—	1.5 %	227.5 MPa	—	—	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

C11000 ETP Copper Processing & Fabrication

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: Good; Butt Welding: Good; Gas Shielded Arc Welding: Fair; Oxyacetylene Welding, Coated Metal Arc Welding, Spot Welding, and Seam Welding: Not Recommended.

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.

Practical Engineering & Fabrication Notes

By Mat Grades Editorial Desk · Updated 2026-11-14. Use alongside the specified product standard and supplier certificate.

Machining & shop-floor behavior

The cataloged machining note for C11000 ETP Copper states: Machinability rating: 20% relative to free-cutting brass (C36000 = 100%). Forgeability rating: 65. A relevant hardness example is Rockwell B Hardness: 40 HRB (typical; 1/2 Hard (H02), H02, Flat Products, 0.04 in; test temperature 20 °C). Use that supplied condition for a trial of the difficult feature. Record tool changes, burr removal, unclamped dimensions and accepted parts per hour. Relative machinability ratings from different reference scales should not be compared as if they were one common test.

Weldability, brazing & joining

The available joining assessment states: Soldering: Excellent; Brazing: Good; Butt Welding: Good; Gas Shielded Arc Welding: Fair; Oxyacetylene Welding, Coated Metal Arc Welding, Spot Welding, and Seam Welding: Not Recommended. The first cataloged strength example is Tensile Strength: 289.6 MPa (typical; 1/2 Hard (H02), H02, Flat Products, 0.04 in; test temperature 20 °C). Assess the final part after joining or thermal processing. Include distortion, cleanup and inspection in the quotation. A material designation or favorable process rating is a starting point for qualification, not evidence that an untested joint meets the drawing.

Corrosion & service environment

Review the working fluid, cleaning agents and dissimilar-metal contacts as separate exposures. The word copper, brass or bronze is too broad to establish compatibility. A process rating does not qualify a pressure boundary, and a thermal-property measurement does not establish a continuous service-temperature limit. The recorded thermal example is Thermal Conductivity: 391.15 W/(m·K) (typical; ; test temperature 20 °C). State the exposure and inspection access in the design record so that a change of installation or cleaning method triggers a review. The selected composition entries are Cu minimum 99.9 wt%. Chemistry documents identity; it does not establish fluid compatibility.

Selection trade-offs & applications

For busbars and terminals, review bulk conductor loss separately from the contact interface. A change of copper grade does not correct inadequate contact pressure or a poorly designed connection. The listed forms include Flat Products, Rod; confirm the actual stock offered by the supplier. Compare the complete route through machining, joining, finish and inspection. Keep the certificate, required test location and acceptance criteria with the first-article record. A later change of grade, condition or source should be assessed against that same requirement.

Technical references: Copper Development Association (CDA); Copper Development Association (CDA)

Pure Copper Alloy Family

Copper alloys sharing common alloying formulations and metallurgical classifications under the Pure Copper branch.

3 Adjacent Grades

C11000Current Grade

C11000 ETP Copper

C10100

C10100 Oxygen-Free Electronic (OFE) Copper

View Grade →

C10200

C10200 Oxygen-Free (OF) Copper

View Grade →

Related Engineering & Metallurgy Guides

Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to C11000 ETP Copper.

Material Selection8–10 min read

C11000 ETP vs C10200 Oxygen-Free Copper: How to Choose

Choose copper by the atmosphere, joining route and conductivity requirement—not purity alone.

Author: Mat Grades Editorial DeskRead Guide →

Corrosion & Surface Engineering8–10 min read

Preventing Galvanic Corrosion in Stainless, Aluminum and Copper Assemblies

Control the electrical path, moisture and area relationship—not just the metal pair.

Author: Mat Grades Editorial DeskRead Guide →

Standards & Equivalents8–10 min read

ASTM, SAE, EN and UNS Material Numbers Explained

Separate alloy identities, product specifications and test methods before comparing equivalents.

Author: Mat Grades Editorial DeskRead Guide →

Sources

Sources & Provenance Trail: Authoritative reference publications, standards specifications, and data registers cited across this material record.

Copper Development Association Inc.CDA Alloy C11000 Property & Specification Profile

AUTHORITATIVE BODY

Copper Development Association authoritative technical reference profile for C11000 Electrolytic Tough Pitch (ETP) Copper.

Issuing Body: Copper Development Association (CDA)View Source Record ↗

Copper Development Association Inc.CDA UNS Standard Designations for Wrought Coppers (C10100 - C15999)

AUTHORITATIVE BODY

Unified Numbering System (UNS) designation registration register confirming active UNS C11000 status and commercial name Electrolytic Tough Pitch (ETP).

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.