Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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40Mn2

40Mn2

40Mn2 Structural Alloy Steel
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40Mn2 Structural Alloy Steel




Material Name


Material Name: 40Mn2

Characteristics and scope of application


Generally used in the quenched and tempered condition, can be used in the manufacture of parts under the condition of heavy load, such as shaft, crankshaft, axle, piston rod, worm, a lever, a connecting rod, a load of bolts, screws, reinforcing ring, springs, and other conditioning parts. Generally used in the diameter less than 50mm with small cross section important parts.


Chemical Composition 


Cu Ni
 Mn S P Cr
Max 0.25 Max 0.30
 1.40-1.80 Max 0.030 Max 0.030
 Max 0.30

 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 885 Min 735 Min 12 Min 45 Min 55
 217 25mm

Delivery State


heat treatment (normalizing, annealing or tempering) or heat treatment delivery, delivery status should be indicated in the contract.