Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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38CrMoAl

38CrMoAl

38CrMoAl Alloy Steel
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38CrMoAl Alloy Steel




Material Name


Material Name: 38CrMoAl

Characteristics and scope of application


Wear resistance and fatigue strength is high, and has good heat resistance and corrosion resistance, hardenability is not high. For the production of high abrasion resistance, high fatigue strength and considerable strength, high size precision processing after nitriding parts, such as imitation, cylinder liner, gears, high pressure valve, boring bar worm grinder spindle. But the larger size of the parts should not be used.


Chemical Composition


C Si Ni
 Mo
 Al
 Cu Mn S P Cr
0.35-0.42 0.20-0.45 Max 0.30
 0.15-0.25
 0.70-1.10
 Max 0.30 0.30-0.60 Max 0.035 Max 0.035
 1.35-1.65

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 980 Min 835 Min 14 Min 50 Min 71
 229 30mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 940℃ , water cooling, oil cooling; tempering 640℃, water cooling, oil cooling.

Delivery State


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