C11000 ETP Copper: Electrolytic Tough Pitch für Electrical Verwenden
ASTM B152/B187 · Published: 2026-06-02 · Updated: July 2026
C11000 Electrolytic Tough Pitch (ETP) copper is the most common commercially pure copper grade, containing ≥99.90% Cu with controlled oxygen (0.02-0.04%). It achieves the highest electrical conductivity of any commercial metal (101% IACS...
C11000 Electrolytic Tough Pitch (ETP) copper ist der meiste gemein commercially pure copper grade, containing ≥99.90% Cu mit controlled oxygen (0.02-0.04%). Es achieves der highest electrical conductivity von any commercial metal (101% IACS minimum), making es der global standard für electrical bus bars, power cables, transformer windings, und electrical connectors. ETP copper auch provides excellent thermal conductivity (391 W/m·K) für heat exchangers und plumbing. Soft-soldering und brazing sind straightforward; however, ETP ist susceptible zu hydrogen embrittlement während welding oder hoch-temperature brazing in reducing atmospheres due zu internal steam formation bei Cu2O particles.
Quick Facts
| Kategorie | Copper Alloy |
| Norm | ASTM B152/B187 |
| Density | 8.94 g/cm³ |
| Yield Strength | 69 MPa (10 ksi) annealed; 310 MPa (45 ksi) hard |
| Tensile Strength | 220 MPa (32 ksi) annealed; 380 MPa (55 ksi) hard |
Global Equivalents & Cross-Reference
| Alternative Norm / Güte | Action |
|---|---|
| EN Cu-ETP | Compare |
| CW004A | Compare |
| JIS C1100 | Compare |
| T2 Copper | Compare |
| ISO Cu-ETP | Compare |
Verwandt Comparisons
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Frequently Asked Questions
Was ist der difference zwischen ETP (C11000) und OFHC (C10200) copper?
ETP contains 0.02-0.04% oxygen für impurity steuerung; OFHC hat oxygen unter 0.001%. OFHC ist preferred für welding/brazing applications wo hydrogen embrittlement ist ein concern und für vacuum/cryogenic service. ETP ist mehr economical und sufficient für meiste electrical und allgemein-purpose applications. Der conductivity difference ist negligible (~101% IACS für beide).
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu