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Shanghai Jingteng Metal Group Co., Ltd.

   
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SCr415

SCr415

SCr415 Alloy Steel
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SCr415 Alloy Steel



Material Name


Material Name: SCr415
Execution standard: JIS G4053-2003

Characteristics and scope of application


The cold deformation plasticity is high, the welding property is good, and the machinability is good under the annealing condition.

Used as high working speed and small section, Department of heart high toughness of carburized parts, such as bushings, crank pin, piston pin, piston ring, coupling, and high working speed of gear, cam, shaft and bearing ring, host of the ship with screws and small parts of locomotive, steam turbine rings and other.

Chemical Composition


C
 Si Mn S P
 		Cr Ni Cu
0.13-0.18
 0.15-0.35 0.60-0.90 Max 0.030 Max 0.030
 0.90-1.20 Max 0.030 Max 0.030

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
Min 735 Min 490 Min 11 Min 45
 Min 55
 Min 69
   Max 179 15mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 880℃ for the first time, 780~820℃, water cooling, oil cooling; tempering 200℃ water cooling, air cooling.

Delivery State


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