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CMW® 100 Copper Alloy

Category Metal , Nonferrous Metal , Copper Alloy
Manufacturer CMW Inc.
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF CMW® 100 Copper Alloy.pdf
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Material Notes:
CMW® 100 material is a heat treatable, high strength, high conductivity copper base alloy. Its properties are a combination of highest strength and hardness with relatively high electrical and thermal conductivity. CMW® 100 material has excellent properties. The properties are developed largely by heat treatment although in some wrought forms, the alloy is additionally cold worked.The high hardness, good wear resistance and high annealing temperatures of CMW® 100 material, coupled with sufficiently high electrical conductivity, make it ideal for electrodes used in spot and seam welding high resistance materials such as stainless steel, Nichrome, Monel metal and many of the high temperature heat resisting alloys. Its heat treatment capabilities allow forming custom bent electrode designs. The excellent casting properties of CMW® 100 material makes possible exceptionally smooth, clean castings for use as flash and projection welding dies and current carrying bushings. In resistance welders, high strength, current-carrying members formerly made of low electrical conductivity aluminum bronze can be decreased in section if made of CMW® 100 material for the same electrical requirements. Much higher currents can be handled if the sections are left the same size. CMW® 100 material is ideal for current carrying springs and structural parts where high conductivity and high strengths are required.Information provided by CMW Inc.
Physical Properties Metric English Comments
Density 8.75 g/cc
0.316 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 95
95
Castings
100
100
Forgings
100
100
Drawn rod and bar
100
100
Strip (TH04)
Tensile Strength, Ultimate 655 MPa
95000 psi
Castings
689 MPa
99900 psi
Forgings
758 MPa
110000 psi
Drawn rod and bar
793 MPa
115000 psi
Strip (TH04)
Tensile Strength, Yield 565 MPa
81900 psi
Castings
621 MPa
90100 psi
Forgings
655 MPa
95000 psi
Drawn rod and bar
689 MPa
99900 psi
Strip (TH04)
Elongation at Break 6.0 %
6.0 %
Castings
8.0 %
8.0 %
Strip (TH04)
10 %
10 %
Rod & bar
15 %
15 %
Forging
Modulus of Elasticity 117 GPa
17000 ksi
Fatigue Strength 124 MPa
18000 psi
casting
241 MPa
35000 psi
Strip (TH04)
275 MPa
39900 psi
Drawn rod and bar
Thermal Properties Metric English Comments
CTE, linear 17.6 µm/m-°C

@Temperature 100 °C
9.78 µin/in-°F

@Temperature 212 °F
Thermal Conductivity 180 W/m-K
1250 BTU-in/hr-ft²-°F
Casting
197 W/m-K
1370 BTU-in/hr-ft²-°F
Drawn rod, bar and strip
197 W/m-K
1370 BTU-in/hr-ft²-°F
Forging
Melting Point 971 - 1088 °C
1780 - 1990 °F
Solidus 971 °C
1780 °F
Liquidus 1088 °C
1990 °F
Softening Point 455 °C
851 °F
Permanent Softening
Component Elements Properties Metric English Comments
Beryllium, Be 0.50 %
0.50 %
Co + Ni 1.5 - 2.55 %
1.5 - 2.55 %
Copper, Cu 96.95 - 98 %
96.95 - 98 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000359 ohm-cm
0.00000359 ohm-cm
(48 % IACS)
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