MM40/MM30 high strength beryllium copper alloy MM40 beryllium copper round bar

ASSAB MM40/MM30 Die steel

ASSAB MM40/MM30 is a high strength beryllium copper alloy developed by ASSAB Steel. Its die characteristics are as follows:

L High thermal conductivity

L Excellent corrosion resistance

L Excellent polishing

L Excellent wear resistance

L Excellent adhesion resistance

L Excellent machinability

L High strength and hardness

L Excellent weldability



ASSAB MM40/MM30 die steel

ASSAB MM40/MM30 is widely used in molds, cores and inserts that require rapid and uniform cooling, especially for high thermal conductivity, corrosion resistance and good polishing. Its use is as follows:

L Suitable for blow molding, such as clamp, collar and handle inserts

L Suitable for injection molding, such as: mold, mold core, TV shell corner insert

L Suitable for plastic molds, such as inserts and cores

L Suitable for injection molding, such as nozzle and hot runner system confluence cavity



ASSAB MM40/MM30 Die steel hardness

Hardness of ASSAB MM40:36-42HRC

Hardness of ASSAB MM30:26-32HRC