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42CrMo4

42CrMo4

42CrMo4 Structural Alloy Steel
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Diameter：
  
42CrMo4 Structural Alloy Steel



Material Name


Material Name: 42CrMo4

Characteristics and scope of application


High strength and toughness, good toughness, small deformation during quenching, high creep strength and lasting strength at high temperature

Chemical Composition


C Si Mn Mo
 S P Cr
0.38-0.45 Max 0.40 0.60-0.90 0.15-0.30
 Max 0.035 Max 0.035
 0.90-1.20

Mechanical Properties


Tensile strength
σb (MPa) 		Yield Strength
σs 0.2 (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
 ballistic work
Akv (J)
Hardness
（HB）
specimen size
Min 1080 Min 930 Min 12 Min 45
 Min 63
 Max 217 25mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 850℃ oil cold; tempering 560℃ water cold, oil cold.
Metallurgical Structure: tempered sorbite

Delivery State


annealed state delivery, the delivery state should be indicated in the contract.