CMW® 3 Copper Alloy

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CMW® 3 Copper Alloy (discontinued **)
Categories:	Metal; Nonferrous Metal; Copper Alloy
Material Notes:	CMW® 3 material is a high strength, high conductivity copper base alloy. CMW® 3 material is heat treatable. Optimum mechanical and physical properties of CMW® 3 material are developed by heat treatment or through a combination of heat treatment and cold working. CMW® 3 material is used extensively for spot welding electrodes and is well suited for custom bent designs, flash welding dies, and seam welding wheels, and provides better performance and greater savings than other copper alloys used for spot and seam welding. Property data for fully precipitation heat treated condition. Information provided by CMW Inc. 1
Key Words:	UNS C18200 (Wrought); UNS C18500 (Cast)
Vendors:

Available Properties

Density
Hardness, Rockwell B, Forging (Hot Forged and Heat Treated)
Hardness, Rockwell B, Premium Casting
Hardness, Rockwell B, Premium Forging (Hot Forged, Heat Treated, and Cold Worked to less than 1" thick)
Hardness, Rockwell B, Strip (TH04)
Hardness, Rockwell B, Plate
Hardness, Rockwell B, Drawn Rod & Bar
Tensile Strength, Ultimate, Premium Casting
Tensile Strength, Ultimate, Forging (Hot Forged and Heat Treated)
Tensile Strength, Ultimate, Premium Forging (Hot Forged, Heat Treated, and Cold Worked to less than 1" thick)
Tensile Strength, Ultimate, Strip (TH04)
Tensile Strength, Ultimate, Plate
Tensile Strength, Ultimate, Drawn Rod & Bar
Tensile Strength, Yield, Premium Casting
Tensile Strength, Yield, Forging (Hot Forged and Heat Treated)
Tensile Strength, Yield, Premium Forging (Hot Forged, Heat Treated, and Cold Worked to less than 1" thick)
Tensile Strength, Yield, Strip (TH04)
Tensile Strength, Yield, Plate
Tensile Strength, Yield, Drawn Rod & Bar
Elongation at Break, Strip (TH04)
Elongation at Break, Premium Forging (Hot Forged, Heat Treated, and Cold Worked to less than 1" thick)
Elongation at Break, Premium Casting
Elongation at Break, Forging (Hot Forged and Heat Treated)
Elongation at Break, Plate
Elongation at Break, Drawn Rod & Bar
Reduction of Area, Premium Casting
Reduction of Area, Premium Forging (Hot Forged, Heat Treated, and Cold Worked to less than 1" thick)
Reduction of Area, Forging (Hot Forged and Heat Treated)
Reduction of Area, Drawn Rod & Bar
Modulus of Elasticity, Bar, Rod & Forgings
Modulus of Elasticity, Castings & Strip
Modulus of Elasticity, Plate
Electrical Resistivity, Bar, Rod & Forgings (85 % IACS)
Electrical Resistivity, Castings & Strip (80 % IACS)
Electrical Resistivity, Plate (78 % IACS)
CTE, linear
Thermal Conductivity
Melting Point
Solidus
Liquidus
Softening Point, Permanent Softening
Chromium, Cr
Copper, Cu

Property Data

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Manufacturer Notes:
CMW Inc.

Category Notes
none

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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