Chemical composition:
Nickel 2.5%
Silicon (Si) 0.7%
The maximum chromium content is 0.4%
Copper balance
Performance:
Density 8.7 1 kg/dm3
The tensile strength is 689Mpa.
Yield strength 5 17Mpa.
Ductility 13%
Hardness 2 10HB
The thermal conductivity is 208 W/m? K.
Features:
AMPCOLOY？ 940 is a patented copper alloy, which meets the customer's demand for beryllium bronze-free RWMA standard level 3. Facing the increasingly strict health and safety regulations related to the use of toxic substances in industrial countries, AMPCO? Developed and launched AMPCOLOY? 940, a new copper alloy, can it replace AMPCOLOY? All practical applications.
Beryllium-free, good annealing resistance, tensile strength and thermal conductivity
Application:
AMPCOLOY？ 940 is widely used in fields requiring good electrical conductivity, thermal conductivity and mechanical properties;
Covered electrode clamp and seam welding shaft, spot welding electrode, seam welding disc electrode, projection welding and butt welding mold, mainly used for welding stainless steel and Monel copper-nickel alloy, plunger head of high-pressure cold chamber aluminum die casting machine, injection mold parts, injection nozzle and cooling insert, paper roll brake drum and energy engineering parts.