Material: Electrolytic Tough Pitch (ETP) Copper | Document Version: 2.0 | Date: June 2025

Material Identification

Designation SystemCodeالمرجع القياسي
UNS NumberC11000ASTM B124/B152
European StandardCW004AEN 1412
المعيار اليابانيC1100JIS H3100
ISO Designationالنحاس-ETPISO 1634-1

Chemical Composition (wt%)

عنصرالحد الأدنىأقصىعاديملاحظات
Copper + Silver99.90-99.95Primary constituent
Oxygen0.0150.0400.025150-400 ppm as Cu₂O
فضة-0.0300.015Counted in copper total
يقود-0.0050.002Impurity control
حديد-0.0050.002Impurity control
Tin-0.002<0.001Impurity control
الزنك-0.002<0.001Impurity control
Total Other Impurities-0.0500.020Excluding oxygen

Physical Properties at 20°C

ملكيةMetric ValueImperial Valueطريقة الاختبار
الخصائص الكهربائية
التوصيل الكهربائي≥58 MS/m (100% IACS)≥100% IACSASTM E1004
المقاومة الكهربائية1.724 µΩ·cm6.79 µΩ·inASTM B193
Temperature Coefficient0.00393 /°C0.00218 /°F-
الخصائص الحرارية
توصيل حراري390 W/m·K270 BTU·ft/(h·ft²·°F)ASTM E1461
السعة الحرارية محددة0.385 J/g·K0.092 BTU/(lb·°F)-
Thermal Expansion (20-300°C)16.5 × 10⁻⁶ /°C9.2 × 10⁻⁶ /°FASTM E228
Physical Constants
سمك 12-300 مم × عرض 200-2300 مم8.94 g/cm³0.323 lb/in³-
نقطة الانصهار1,083°C1,981°F-
معامل المرونة117 GPa17,000 ksiASTM E111
نسبة بواسون0.340.34-

الخصائص الميكانيكية

Annealed Condition (O60/O61)

ملكيةValue RangeعاديTest Standard
مقاومة الشد210-250 MPa230 MPaASTM E8/E8M
0.2% Yield Strength70-100 MPa85 MPaASTM E8/E8M
Elongation (50mm gauge)45-55%50%ASTM E8/E8M
Rockwell Hardness45-65 HRB55 HRBASTM E18

Cold-Worked Tempers

لين، لطف، هدأReduction (%)UTS (MPa)YS 0.2% (MPa)استطالة (٪)الصلابة (HRB)
H02~253002002570
H04~ 503502801085
H08~75400320595

Fatigue Properties

Test ConditionEndurance LimitCyclesملاحظات
Rotating Beam (R = -1)~90 MPa10⁷Room temperature
Axial Load (R = 0.1)~120 MPa10⁷Annealed condition

Fabrication Characteristics

معالجةملاءمةParameters/Notes
Forming Operations
Cold DrawingممتازDeep drawing ratio r̄ ≈ 2.0
الانحناءممتازMin. bend radius = 1t (annealed)
ختمممتازClean blanking possible
العمل الساخنجيدTemperature range: 700-900°C
Joining Methods
Soft SolderingممتازUse rosin-based flux
Silver BrazingممتازPreferred for HVAC applications
لحام المقاومةعدلControl expulsion
TIG/MIG WeldingمحدودPorosity issues
Friction Stir WeldingجيدSolid-state process
إلى 500 درجة مئوية وتخفيف التوتر
General MachinabilityجيدTool life index: 20 (Brass = 100)
Recommended Speed120 m/minCarbide tools with flood coolant

المقاومة للتآكل

بيئةأداءمعدل التآكلComments
Atmosphere (Urban)ممتاز<0.01 mm/yearForms protective oxide
Fresh Waterممتاز<0.005 mm/yearSuitable for potable water
Seawater (static)جيد0.02-0.05 mm/yearCopper-nickel preferred >2 m/s
Neutral SoilجيدVariablePE sleeve in acidic conditions
Reducing Atmospheresمسكين-Risk of hydrogen embrittlement

Applications by Industry

قطاع الصناعةالتطبيقات النموذجيةKey Requirements Met
Electrical PowerBusbars, switchgear contacts, transformer windingsHigh conductivity, reliability
إلكترونياتPCB traces, connectors, RF componentsConductivity, solderability
HVAC/RefrigerationHeat exchanger tubes, refrigerant linesThermal conductivity, corrosion resistance
بناءPlumbing, roofing, architectural elementsDurability, formability, aesthetics
السياراتRadiators, brake lines, electrical harnessesHeat transfer, vibration resistance
البحريةHeat exchangers, piping systemsSeawater compatibility

Applicable Standards

Organizationالرقم القياسيوصف
ASTM International
B124Copper and Copper Alloy Bars and Rods
B152Copper Sheet, Strip, and Rolled Bar
B187Copper Busbar
B188Seamless Copper Tube
B837Seamless ID-Controlled Copper Tube
European Standards
EN 13599Copper and Copper Alloys – Chemical Composition
EN 13601Copper Rod, Bar and Wire for Electrical Purposes
International Standards
ISO 1634-1Wrought Copper – Chemical Composition
ISO 2009Copper and Copper Alloys – Cast Products
Japanese Standards
JIS H3100Copper and Copper Alloy Sheets and Strips
هو H3250Copper and Copper Alloy Seamless Pipes and Tubes

Quality Control Testing

Test Categoryطريقةتكرارمعايير القبول
تحليل كيميائي
Copper ContentOES/AASكل حرارة≥99.90% (incl. Ag)
Oxygen ContentInert gas fusionكل حرارة0.015-0.040%
الاختبارات الميكانيكية
Tensile PropertiesASTM E8/E8Mلكل الكثيرPer specification
سمك 12-300 مم × عرض 200-2300 ممASTM E18Per coil/barPer specification
Electrical Testing
التوصيلASTM E1004لكل الكثير≥100% IACS
Dimensional Control
Thickness/DiameterMicrometryContinuous±tolerance
Non-Destructive Testing
جودة السطحEddy currentAs requiredNo detectable defects

Storage and Handling

المعلمةRecommendationRationale
Storage EnvironmentDry, ventilated areaPrevent tarnishing
Humidity Control<60% RHMinimize oxidation
درجة حرارة التقسيةAmbientAvoid thermal cycling
التعبئة والتغليفMoisture barrier, VCI paperCorrosion prevention
HandlingClean gloves, avoid scratchingMaintain 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