W75Cu25 Tungsten-Copper Alloy Bar

Tungsten Copper Electrodes are WIDELY used, mainly used in the manufacture of high voltage switch contacts, rocket nozzle throat liner, tail rudder and other high temperature parts, can also be used as electrical processing electrode, high temperature mold and other occasions requiring high conductivity and high temperature.

Product Description

Copper Rod - Product Specification Table
Property CategorySpecificationDescription / Typical Values
General InformationCommon NamesCopper Rod, Copper Bar, Copper Round Bar
Material StandardsASTM B187, ASTM B152, C11000, C10200
Material CompositionPrimary AlloysC11000 (Electrolytic Tough Pitch Copper)
Copper Content99.90% min (C11000)
Oxygen Content0.02%-0.04% (ETP copper)
Physical PropertiesDensity8.94 g/cm³
Melting Point1083°C (1981°F)
Electrical Conductivity100% IACS min
Thermal Conductivity391 W/m·K
Mechanical PropertiesTensile Strength250-380 MPa (36,000-55,000 psi)
Yield Strength (0.2% Offset)200-350 MPa (29,000-51,000 psi)
Elongation12%-45%
HardnessRockwell B 40-85
Key CharacteristicsConductivityExcellent electrical and thermal conductivity
Corrosion ResistanceExcellent; resistant to atmospheric and aqueous environments
MachinabilityFair (20% of free-cutting brass)
FormabilityExcellent; can be hot and cold worked
Available FormsDiameter Range3mm-300mm (0.125"-12")
Length1m-6m (3ft-20ft)
TemperAnnealed (soft), Half-hard, Hard
ShapeRound, Square, Hexagonal
Common ApplicationsElectricalBus bars, switchgear components, electrical contacts
IndustrialHeat exchangers, welding electrodes, machinery parts
ConstructionPlumbing fittings, roofing elements, architectural details
ManufacturingBase material for forged and machined parts

Alloy & Standard DesignationDiameter Range (in / mm)Temper / ConditionKey Mechanical & Electrical PropertiesCommon Industry Applications
C11000 - Electrolytic Tough Pitch (ETP) Copper1/8" (3.18mm) – 6" (152.4mm)
3mm – 150mm (Precision Ground)
H04 (Hard Drawn)
H00 (Hot Rolled)
O60 (Annealed)
Conductivity: 100% IACS (min)
Tensile: 45-55 ksi (Hard)
Yield: 40-50 ksi (Hard)
Electrical Conductors, Bus Bars, Heat Exchangers, General Fabrication
ASTM B187, ASTM B152
C10100 / C10200 - Oxygen-Free Copper (OFC)0.125" (3.18mm) – 4" (101.6mm)
5mm – 100mm
Annealed (O60)
Hard (H04)
Conductivity: 101%+ IACS
Non-Embrittling at high temp
Excellent thermal conductivity
High-Vacuum Components, RF/Microwave Waveguides, Sputtering Targets, Premium Audio
ASTM B187, UNS C10100
C14500 - Tellurium Copper (Free-Machining)1/4" (6.35mm) – 3" (76.2mm)
8mm – 80mm
H04 (Hard)
H02 (Half-Hard)
Conductivity: 95% IACS (min)
Machinability: 90% (C360=100%)
Excellent thermal & electrical
Screw Machine Parts, Electrical Fittings, Switches, Welding Nozzles
ASTM B301
C14700 - Sulfur-Bearing Free-Machining Copper0.25" (6.35mm) – 2" (50.8mm)
5mm – 50mm
H04 (Hard Drawn)Conductivity: 98% IACS (typ)
Machinability: 85% (C360=100%)
Superior hot-working properties
Hot Forging Stock, Electrical Connectors, Plumbing Fittings
ASTM B124
C15760 - Zirconium Copper (High Strength)0.375" (9.5mm) – 2" (50.8mm)
10mm – 60mm
Solution Annealed & Aged
Cold Worked & Aged
Conductivity: 80-90% IACS
Tensile: 65-75 ksi (Aged)
High Temp Stability to 400°C
Resistance Welding Electrodes, Heavy Duty Switches, High Temp Conductors

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