E M4

M4 is a vanadium based grade used for cold work applications.

Datasheet :

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Chemical composition

C Cr Mo W Co V
1.30 4.2 4.5 5.6 - 4.0

Standards

  • Europe : HS 6-5-4
  • Japan : JIS SKH54
  • Germany : 1.3351
  • USA : AISI M4

Properties

Machinability

Wear Resistance

Toughness

Hot hardness

Grindability

Heat treatment

Delivered Hardness

  • Soft annealed : 250 HB
  • Cold drawn : 275 HB
  • Cold rolled : 275 HB

Characteristics

E M4 can be worked as follows:

  • machining (grinding, turning, milling)
  • polishing
  • hot forming
  • electrical discharge machining
  • welding (special procedure including preheating and filler materials of base material composition).

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