Spécifications

• Common name
  300M
• EU
  40NiSiCrMo7
• USA
  UNS:K44220

Typical composition

• C
  0,4
• Ni
  1,8
• Cr
  0,85
• Mo
  0,4
• Si
  1,6

Applications

Mechanical properties

Mechanical features

• Heat treatment
  T + Rv 600°C
  T + 2xRv 300°C
• UTS (N/mm²)
  1450
  2050
• A (%)
  14
  12
• KCU (J/cm²)
  60
  50

• Solution treated : H
  Annealed : R
• Thermo-mechanical treatment : TM
  Quenched and tempered : T+RV
• Sub-zero treatment : F
  Solution treated and aged : T+RV

See also