M390 die steel is the brand of Austria bailu steel. The M390 is a "god grade" material for cutting tools smelted by the third generation powder metal technology. The steel has excellent corrosion resistance and very high mirror polish, as well as the high hardness required for making knives.
N690 Plastic die steel
Belo N690 is an ultra specular corrosion resistant die steel. The steel is a new type of cobalt-mo-vanadium martensitic stainless steel produced by electroslag redissolution technology. N690 has excellent quenching and tempering hardening performance, excellent high compressive strength, excellent wear resistance and polishing, good corrosion resistance, and can also be used for surface nitriding and other processes.
N690 Die steel round steel chemical element % :
C Si Mn Cr Mo V Co
1.08 0.40 0.40 17.3 1.10 1.10 1.50
N690 die steel plate uses:
N690 die steel steel rod is suitable for corrosion resistant bearings;
N690 die steel module is suitable for high precision nozzle, valves, pistons and other die accessories;
N690 die steel round bar is suitable for cutting surgical instruments, hardening tools;
N690 die steel plate is suitable for refrigeration equipment, packaging molds, etc.
N690 die steel material supply status and factory hardness:
N690 die steel steel rod/steel plate/round steel/round rod/steel/material/material/module supply state is annealing state, the factory hardness is about 285HBW.
N690 quenching steel materials | | | tempering annealing stress relieving process:
N690 die steel quenching temperature 1030-1080℃, air cooling; Tempering temperature 800-850℃, hardness 58-62HRC