Quick Detail
Place of Origin
HS-CODE
72-
Package & Delivery Lead Time
Detailed Description
42CrMo alloy tool steel
Grade:AISI 4140/4142,DIN 41CrMo4/42CrMo4,JIS SCM4,ISO 683/1 3,BS 708M40/708A42/709M40,W.Nr.1.7225
Main features:
• Good purity and homogeneity.
• Good machinability
(Roughing, grinding and drilling).
• Good dimensional stability during heat treatment.
• Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.
• Poor solderability
Chemical composition:(GB/T3077-1999)
C Si Mn S P Cr Mo
0.38~0.45 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.90~1.20 0.15~0.25
Applications:
• Shafts, gears, cylinders and columns for industry
mechanics in general.
• Construction of mold
• For compression molds, where the etching is not required.
• Mechanical parts in general.
Heat treatment:
Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air.
Stress relieving: after rough heat to 500 ° C,
maintenance raff. In oven to 400 ° C, then in air.
Hardening: preheating from 600 to 650 ° C austenitizing
at 840 to 880 ° C, quenching in oil.
Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the mechanical properties
to be obtained.
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