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Shanghai Jingteng Metal Group Co., Ltd.

   
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SCM415 4115(H) 16CrMo4 Alloy Steel

SCM415 4115(H) 16CrMo4 Alloy Steel

SCM415 4115(H) 16CrMo4 Alloy Steel

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SCM415 4115(H) 16CrMo4 Alloy Steel




Material Name


Material Name: SCM415 4115(H) 16CrMo4
Execution standard: JIS G4053-2003

Characteristics and scope of application


have good technological property and welding performance, in 500~550℃ have high lasting strength. when the temperature is more than 550℃, oxidation resistance variation and creep strength decreased significantly. long time in 500~550℃, the steel's high strength and strength is reduced. used in the manufacture of 510℃ high, medium pressure steam pipes, container and superheater and forgings whose tube wall temperature is 550℃.


Chemical Composition Mechanical Property


C Si Mn S P Cr Ni Cu Mo
0.13～0.18 0.15～0.35 0.60～0.90 Below 0.030 Below 0.030
 0.90～1.20 Below 0.25 Below 0.030 0.15～0.25

Mechanical Property


Tensile strength
σb (MPa) 		Yield Strength
σs 0.2 (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
 ballistic work
Akv (J) 		pounding toughness value
αkv (J/cm2)
Hardness
（HB）
specimen size
Above 440 Above 295 Above 22 Above 60
 Above 94
 Above 118
   Below 179 30mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : normalizing 900℃, air cooling; tempering 650℃, air cooling
Metallurgical Structure: ferrite + pearlite+ a small amount bainite

Delivery State


Heat treatment (normalizing, annealing or high temperature tempering) or non heat treatment state of delivery, the delivery state should be indicated in the contract.