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M42 High Speed Steel

M42 High Speed Steel
M42 High Speed Steel
Product Code : M42HSS
Product Description

M42 High Speed Steel is a premium cobalt high speed steel which have high hardness and superior hot hardness due to which this steel is best suited for machining high strength and pre hardness steels, high hardness alloys, non ferrous super alloys used on the aerospace, oil and the power generation industries.

Chemical Composition :-

  • C : 1.08%
  • Cr : 3.85%
  • Sr : 0.45%
  • W : 1.50%
  • Mo : 9.50%
  • V : 1.20%
  • Co : 8.00%

Properties :-

  • Specific Gravity : 7.81
  • Density : 0.282 LB/in3
  • Modulus of Elasticity : 30x106 PSI
  • Machinability : 35 to 40%

Equivalent :-

1.3247, S500, HS 2-10-1-8, E M42, REX M42, Dynamax

Heat Treating :-

  • Preheat : 1500 – 1550°F
  • Annealing : 1575 – 1650°F
  • Austenitizing : 2125 – 2175°F
  • Tempering : 1025 – 1050°F
  • Quench : Salt, Oil, Atm (medium)

Applications :-

Taps, twist drills, milling cutters, reamers, saws, broaches, knives, thread rolling dies, knives etc.


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