Cr-Mo alloyed through hardening steel with high tempering resistance.
|AISI A-8 Mod||1.2362 MOD||X63CrMoV51||-||-||-|
Chemical Composition (AISI A-8 Mod)
|AISI A-8 Mod||0.50||0.95||0.40||0.15||0.003||8.25||1.3||0.4||0.01||0.15|
Modulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.81
1. Intermediate rolls for cluster mills
2. Trimming dies
3. Hot cutting shears.
Heat to 800-840oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 250.
Stress relieving to remove machining stresses should be carried out by heating to 600-650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Harden from a temperature of 980-1020oC followed by oil quenching or warm bath quenching. Hardness after quenching is 61-63 HRC.