W200 Copper Alloy

Precision Alloys is a reputed manufacturer and global supplier of W200 Copper Alloy, a high-conductivity, high-strength alloy specially designed for advanced electrical, resistance welding, and heat transfer applications. W200 is valued for its excellent hardness, resistance to deformation, and thermal stability, even under extreme mechanical and thermal loads.

We supply W200 in the form of electrodes, rods, bars, forgings, die blocks, and fully-machined parts, customized for automotive, aerospace, tooling, and industrial applications.

What is W200 Copper Alloy?

W200 is a premium-grade, copper-nickel-silicon-chromium (CuNiSiCr) alloy that offers a balanced combination of hardness, strength, and conductivity. Engineered for thermal cycling environments, W200 resists mechanical wear, arc erosion, and cracking, making it a reliable choice for robotic welding, switchgear, electrical contacts, and industrial tools.

W200 Copper Alloy Specifications

Property Specification
Alloy Designation W200
RWMA Classification Class 3+ (High Performance)
Forms Available Bars, Rods, Electrodes, Plates, Forged Blocks, CNC Parts
Hardness 85 – 115 HRB / Up to 35 HRC
Delivery Condition Precipitation Hardened / Heat Treated / Forged
Standards Custom RWMA / ASTM / DIN Specs per application

W200 Copper Alloy Chemical Composition

Element % Composition
Copper (Cu) Balance
Nickel (Ni) 1.0 – 2.5
Silicon (Si) 0.2 – 0.6
Chromium (Cr) 0.1 – 0.3
Iron (Fe) ≤ 0.1
Others ≤ 0.15

Mechanical Properties of W200 Copper Alloy

Property Typical Value
Tensile Strength 500 – 620 MPa
Yield Strength 400 – 520 MPa
Hardness 90 – 115 HRB
Electrical Conductivity 50 – 65% IACS
Thermal Conductivity 200 – 240 W/m·K
Density ~8.85 g/cm³

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Frequently Asked Questions

What’s the difference between W200 and W130?
Is W200 weldable or brazeable?
Is W200 suitable for continuous operation in thermal environments?
Do you supply this material with machining and hardening done?
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