Material: Electrolytic Tough Pitch (ETP) Copper | Document Version: 2.0 | Date: June 2025
Material Identification Designation System Code Standard Reference UNS Number C11000 ASTM B124/B152 European Standard CW004A EN 1412 Japanese Standard C1100 JIS H3100 ISO Designation Cu-ETP ISO 1634-1
Chemical Composition (wt%) 要素 最小 最大 典型的な 注意事項 Copper + Silver 99.90 — 99.95 Primary constituent Oxygen 0.015 0.040 0.025 150-400 ppm as Cu₂O 銀 — 0.030 0.015 Counted in copper total 鉛 — 0.005 0.002 不純物の制御 鉄 — 0.005 0.002 不純物の制御 錫 — 0.002 <0.001 不純物の制御 亜鉛 — 0.002 <0.001 不純物の制御 Total Other Impurities — 0.050 0.020 Excluding oxygen
Physical Properties at 20°C 財産 Metric Value Imperial Value 試験方法 電気的特性 電気伝導性 ≥58 MS/m (100% IACS) ≥100% IACS ASTM E1004 電気抵抗率 1.724 µΩ·cm 6.79 µΩ·in ASTM B193 Temperature Coefficient 0.00393 /°C 0.00218 /°F — 熱特性 熱伝導率 390 W/m·K 270 BTU·ft/(h·ft²·°F) ASTM E1461 比熱容量 0.385 J/g·K 0.092 BTU/(lb·°F) — Thermal Expansion (20-300°C) 16.5 × 10⁻⁶ /°C 9.2 × 10⁻⁶ /°F ASTM E228 Physical Constants 密度 8.94 g/cm³ 0.323 lb/in³ — 融点 1,083°C 1,981°F — 弾性率 117GPa 17,000 ksi ASTM E111 ポアソン比 0.34 0.34 —
機械的性質 Annealed Condition (O60/O61) 財産 値範囲 典型的な テスト標準 極限引張強さ 210-250 MPa 230 MPa ASTM E8/E8M 0.2% Yield Strength 70-100 MPa 85 MPa ASTM E8/E8M Elongation (50mm gauge) 45-55% 50% ASTM E8/E8M Rockwell Hardness 45-65 HRB 55 HRB ASTM E18
Cold-Worked Tempers 気性 Reduction (%) UTS (MPa) YS 0.2% (MPa) 伸長 （％） 硬度（HRB） H02 ~25 300 200 25 70 H04 ~50 350 280 10 85 H08 ~75 400 320 5 95
Fatigue Properties Test Condition Endurance Limit Cycles 注意事項 Rotating Beam (R = -1) ~90 MPa 10⁷ Room temperature Axial Load (R = 0.1) ~120 MPa 10⁷ Annealed condition
製造上の特徴 プロセス 適合性 Parameters/Notes Forming Operations 冷間引抜 素晴らしい Deep drawing ratio r̄ ≈ 2.0 曲げ 素晴らしい Min. bend radius = 1t (annealed) スタンピング 素晴らしい Clean blanking possible 熱間加工 良い Temperature range: 700-900°C Joining Methods Soft Soldering 素晴らしい Use rosin-based flux Silver Brazing 素晴らしい Preferred for HVAC applications 抵抗溶接 公平 Control expulsion TIG/MIG Welding 限定 Porosity issues 摩擦撹拌溶接 良い Solid-state process 機械加工 General Machinability 良い Tool life index: 20 (Brass = 100) Recommended Speed 120 m/min Carbide tools with flood coolant
耐食性 環境 パフォーマンス Corrosion Rate コメント Atmosphere (Urban) 素晴らしい <0.01 mm/year Forms protective oxide 淡水 素晴らしい <0.005 mm/year Suitable for potable water Seawater (static) 良い 0.02-0.05 mm/year Copper-nickel preferred >2 m/s Neutral Soil 良い Variable PE sleeve in acidic conditions Reducing Atmospheres 貧しい — Risk of hydrogen embrittlement
業界別のアプリケーション 産業部門 代表的なアプリケーション Key Requirements Met Electrical Power Busbars, switchgear contacts, transformer windings High conductivity, reliability エレクトロニクス PCB traces, connectors, RF components Conductivity, solderability HVAC/Refrigeration Heat exchanger tubes, refrigerant lines Thermal conductivity, corrosion resistance 工事 Plumbing, roofing, architectural elements Durability, formability, aesthetics 自動車 Radiators, brake lines, electrical harnesses Heat transfer, vibration resistance マリン Heat exchangers, piping systems Seawater compatibility
Applicable Standards 組織 規格番号 説明 ASTM International B124 Copper and Copper Alloy Bars and Rods B152 Copper Sheet, Strip, and Rolled Bar B187 Copper Busbar B188 Seamless Copper Tube B837 Seamless ID-Controlled Copper Tube European Standards EN 13599 Copper and Copper Alloys – Chemical Composition EN 13601 Copper Rod, Bar and Wire for Electrical Purposes International Standards ISO 1634-1 Wrought Copper – Chemical Composition ISO 2009 Copper and Copper Alloys – Cast Products Japanese Standards JIS H3100 Copper and Copper Alloy Sheets and Strips HE H3250 Copper and Copper Alloy Seamless Pipes and Tubes
Quality Control Testing Test Category Method 頻度 受け入れ基準 化学分析 Copper Content OES/AAS Each heat ≥99.90% (incl. Ag) Oxygen Content Inert gas fusion Each heat 0.015-0.040% Mechanical Testing Tensile Properties ASTM E8/E8M Per lot Per specification 硬度 ASTM E18 Per coil/bar Per specification Electrical Testing 導電率 ASTM E1004 Per lot ≥100% IACS Dimensional Control Thickness/Diameter Micrometry Continuous ±tolerance Non-Destructive Testing 表面品質 Eddy current As required No detectable defects
Storage and Handling パラメータ おすすめ 理論的根拠 保管環境 Dry, ventilated area Prevent tarnishing Humidity Control <60% RH Minimize oxidation 温度 Ambient Avoid thermal cycling 包装 Moisture barrier, VCI paper Corrosion prevention 取り扱い Clean gloves, avoid scratching Maintain surface quality
Technical Notes Oxygen Content Impact:
Enhances recrystallization and grain refinement Provides balanced strength-ductility relationship Slightly reduces conductivity vs. oxygen-free copper Risk of hydrogen embrittlement in reducing atmospheres Temperature Limitations:
Softening begins around 200°C Creep considerations above 150°C for long-term loading Recrystallization temperature: 200-300°C depending on cold work Design Considerations:
Coefficient of thermal expansion must be considered in multi-material assemblies Galvanic compatibility with other metals in wet environments Joint design critical for high-current applications Document prepared in accordance with: ASTM, EN, ISO, and JIS standards For additional technical support: Contact your material supplier or accredited testing laboratory
