International Mold Steel

Overview  

High tough matrix type high speed tool steel

Applications include:

Hot forging dies and punches

Warm forging dies and punches

Unique Characteristics

  • Applicable with the maximum hardness of 58HRC
  • High hardness and tough grade with excellent heat checking resistance
  • Fine microstructure as that of hot work die steels resulting in higher toughness than conventional high speed tool steels
  • High softening resistance and hot hardness
  • Double melting realizes clean and homogeneous steel with less non-metallic inclusions
Physical properties


Drilling machinability


Nitriding
DRM1   Harden 1120C (2048F)    Draws (minimum of 2)
Recommend a minimum 6 barr quench
Maximum toughness 600C (1112F) HRC56
Good toughness & wear 580C (1076F) HRC57
Maximum wear 550C (1022F) HRC58

Re-forging
Temperature

Heat treatment conditions (ºC)

Hardness

Annealing

Quenching

Tempering

Annealed

Hardening/

Tempering

Requested to inquire

800~880
Slow cooling

1100~1140
OQ, GC, Salt bath

550~620
AC, ≥ twice

≤235HB

56~58HRC


OQ: Oil quenching, GC: Gas quenching in vacuum furnace, AC: Air cooling

Microstructure (As annealed)
Fine and uniform microstructure with less coarse carbides.

Tempering hardness

Toughness: charpy impact property

Temper softening resistance

Hot hardness

Heat checking resistance

Fatigue strength

Hardenability

Dimensional changes in heat treatment

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Join Our Newsletter

Scroll to Top