High Hardness Forging Die Steel Low Melting Point DIN 1.2312 Mould Steel
1.2312 Forged Mold Steel / Forged Steel / Special Steel / Die Steel
Description:
1.DIN1.2312/AISIP20+S/718/40CrMnMoS8-6 mould steel
2.Hot rolled or forged condition, Pre-harden &tempering , black surface
3.Hardness: 30~36HRC
4. Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
5.Production leadtime: 7~10 days
6.Ultrasonic test standards: SPE1921,GR3,Class D/D
7.Chemical composition:
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
1.2312 |
0.35-0.45 |
0.30-0.50 |
1.40-1.60 |
≤0.035 |
0.05-0.10 |
1.80-2.00 |
0.15-0.25 |
8.Compared grades(based on usage):
|
GB |
AISI |
DIN |
|
40CrMnMo |
P20+S |
1.2312 |
Heat Treatment:
Annealing: 710 - 730 °C
Hardness after annealing: Max. 230 HB
Stress relieving: Approx. 650 °C
Hot forming: 1050 - 850 °C
Hardening: 870 - 890 °C
Quenching media: Oil, Salt bath, Vacuum
Hardness after quenching: 50 - 54 HRC
Hardness after tempering:
|
Tempering °C |
100 |
200 |
300 |
400 |
|
HRC |
54 |
54 |
53 |
50 |
Main Applications:
DIN 1.2312 Mould Steel is used for Injection dies without special surface requirements and low mechanical stresses, medium and large sized moulds for plastic processing, dies of light alloys with low melting point, mould fittings, mould frames for the injection molding and die casting industries, components for general mechanical engineering, tools for synthetic plastics processing, die holders, support plates, casings, chases, recipient sleeves, constructional parts, hyrdo forming tools.
