DIN EN ISO 4957
1.2738 40CrMnNiMoS8-6-4
AISI /SAE GOST GB
P20+Ni 4X2ГHM 3Cr2NiMnMo
Chemical Composition
C% | Si% | Mn% | P%≤ | S%≤ | Cr% | Mo% | Ni% |
0.35-0.45 | 0.20-0.40 | 1.30-1.60 | 0.030 | 0.030 | 1.80-2.10 | 0.15-0.25 | 0.90-1.20 |
Steel Properties
It is supplied hardened and tempered to 950-1100 N/mm2. Good machinability, excellent polishability, suitable for texturing.Improved through hardenability compared to DIN 1.2311.
Applications
Synthetic plastic moulding dies,for large moulds.
Heat Treatment
Annealing: 710-740°C
Stress Relief Annealing: 650°C
Hardening:: 840-880°C
Tempering: 600 – 680°C
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Contact: Michael
Phone: +86-15997138795
Tel: +86-15997138795
Email: michael@hswinningsteel.com
Add: NO.14-1-1-403,YINGBIN AVENUE, HUANGSHIGANG DISTRICT, HUANGSHI, HUBEI,P.R.CHINA
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