din 1.7225 alloy steel 1.MOQ:10T 2.ISO9001:2008 3.a complete production equipment 4.We have our own testing equipment

din 1.7225  alloy steel

Grade:AISI 4140/4142,DIN 41CrMo4/42CrMo4,JIS SCM4, 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:

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.

YL

din 1.7225 alloy steel