H11 / 1.2343 / SKD6 ESR Steel Forged Blocks with 100% UT Passed

H11 / 1.2343 / SKD6 ESR Steel Die Block , Forged Blocks for Die Casting Die or Plastic Mould Making

Description:

◆ Equivalence

◆ Chemical Composition (%)

◆ Dimensions

◆ Delivery Condition

EAF+LF+VD+ESR, Forged, Annealed, Hardness≤235HB, Black surface or Machined surface, UT 100% Passed

◆ Characteristics

1. 5% chromium hot work steel that is characterized by excellent impact toughness.

    It contains less vanadium than H13 / 1.2344 / SKD61. This provides for the higher    

    toughness, with some reduction in wear resistance and temper resistance.

2. Deep-hardening, air-hardening steel that exhibits minimal size change during heat               treatment.

3. Good resistance to thermal fatigue cracking (heat checking) and excellent resistance to           gross cracking and thermal shock when water cooled in service.

◆ Applications

Heavy duty hot work tools and dies, mainly for light alloy processing: mandrels, dies, and containers for metal tube and rod extrusion; hot extrusion equipment; tools and dies for the manufacture of hollow bodies, screws, rivets, nuts and bolts. Die casting equipment, forming dies, die inserts, hot shear blades, and plastic mould dies.

◆ Forging Technique

◆ Heat Treatment

750 to 800°C (1382 to 1472°F)

Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 6