OEM No/Model: 1.2436
Performance Characteristics:
Hardening in air, featuring a fine combination of hot strength, cracking resistance and impact toughness in work 600 Centigrade;
Applications:
Be used for cold mould such as punch die wire-drawing diethread rolling mould cold heading mould and cold extrusion mould.
Chemical Composition (%)
C | Si | W | Mo | Cr | S | P |
2.00~2.30 | 0.40 | 0.60~0.90 | 0.35 | 11.00~12.50 | 0.030 | 0.030 |
Heat Treatment:Annealing : 800 - 850 centigrade.
Hardness after annealing : Max. 250 HB
Stress relieving : 650 - 700 centigrade.
Hot forming : 1050 - 850 centigrade.
Hardening : 950 980 centigrade.
Quenching media : Oil, Salt bath ( 220 - 250 centigrade or 500 - 550 centigrade ).
Hardness after quenching : 64 - 66 HRC.
Delivery condition:
EAF or ESR; hot rolled or forging;black,machined surface;Annealing.
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