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SCr430

SCr430

SCr430 Alloy Steel
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SCr430 Alloy Steel



Material Name


Material Name: SCr430
Execution standard: JIS G4053-2003

Characteristics and scope of application


Strength and hardenability are high, alloy structure steel scr430 steel commonly used in the quenched and tempered condition can also be used in normalizing after. Alloy steel structure scr430 used in wear and impact load of the important parts, such as shaft, a small shaft, lever, rocker, the connecting rod, bolts, nuts, gear and all kinds of roller, etc.; also used to the parts of the surface hardening treatment.

Chemical Composition


Si Mn S P
 		Cr Ni Cu
0.15-0.35 0.60-0.90 Max 0.030 Max 0.030
 0.80-1.10 Max 0.25 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 885 Min 685 Min 11 Min 45
 Min 47
 Min 59
   Max 187 25mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 860℃ oil cooling, tempering 500℃ water cooling, oil cooling.

Delivery State


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