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National Standard	Grade	C%	Si%	Mn%	Cr%	Mo%	Ni%	P%	S%
DIN	15CrNi6	0.14-0.19	≤0.4	0.4-0.6	1.4-1.7	-	1.4-1.7	≤0.025	≤0.035

Soft Annealing

Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 217.

Normalizing

Temperature: 850-880oC.

Intermediate Annealing

Temperature: 630-650oC.

Carburizing

Temperature: 850-980oC. Cooling from carburizing temperature: oil, water, thermal bathm, salt bath.

Hardening

Core hardening: 830-870oC. Surface hardening: 780-820oC. Quenching media: oil, water, therma; bath.

Tempering

Tempering temperature: 150-200oC.

Forging

Hot forming temperature: 1100-850oC.