1.2738
SKU: 2738
DIN : 40CrMnNiMo8-6-4
EN : -
AISI/SAE : P20 MOD
DESCRIPTION: IT IS PRE-HARDENED PLASTIC MOLD STEEL TO 30-33 HRC. IT IS ESPECIALLY USED IN PLASTIC INJECTION MOLDS DUE TO ITS HOMOGENOUS HARDNESS DISTRIBUTION, BRIGHTNESS, EASY WELDING FEATURES. IT IS SUITABLE FOR PATTERNING.
Chemical Composition
C
cr
B.C
mn
Ni
0.40
1.90
0.20
1.50
1.00
Mechanical PropertiesI
Hardness of Use 30-48 HRC
Heat Treatment Information
Heat Treatment
Heat
Environment
Hardness
Soft Annealing
760 - 800 °C
Oven
245HB
Stress Relief
500 - 550°C
Oven
Hardening
1020 - 1050°C
Oil - Gas - Air - Hot Bath
Tempering Curve