DIN 1.2312/AISI P20+S Mould Steel Plate

1.Condition:Hot rolled , Pre-harden &tempering , black surface

2.Hardness: 30~36HRC

3. Hot rolled technology:EAF+LF+VD

4.Production leadtime: 7~15 days

5.Ultrasonic test standards: SPE1921,GR3,Class D/D

6.Chemical composition:
C:0.35-0.45 Si:0.30-0.50 Mn:1.40-1.60 P=0.035
S:0.05-0.10 Cr:1.80-2.00 Mo:0.15-0.25

7. 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
DIN 1.2312/AISI P20+S Mould Steel Plate