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JIS G4104 SCr420 steel

Thickness: 3.0mm to 14.0mm
Width: 20mm to 300mm
Finish: No.1, Bright, Black
Payment terms: L/C, T/T
Packaging: Wooden pallets,water proof paper

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Product introduction

JIS G4104 SCr420 is a cementation alloy steel. It has good strength and hardenability. After quenching and tempering at low temperature, JIS G4104 SCr420 can get good combination propertes and impact tenacity at low temperature, without temper brittleness. After normalizing and quenching and high temperature tempering, machinability is good, and welding performance is excellent( before welding, it needs preheating to 100-150 °C), so JIS G4104 SCr420 can be used as cementation steel.

JIS G4104 SCr420 steel is mainly used for manufacturing various carburization parts with small diameter, simple shape, high rotation rate,small load,surface wearability, such as small gear,small shaft, valve, gudgeon pin,pallet,and so on.

JIS G4104 SCr420 steel chemical composition :

Grade

Mn 

P ≤

S  ≤

Si

Cr

JIS G4104 SCr420 

0.17-0.22

0.7-0.9

0.035

0.04

0.15-0.35

0.7-0.9

JIS G4104 SCr420 steel mechanical  properties:


Grade

YS
ReH,MPa, Min

TS
Rm,MPa

EL(%)
A,% ,min

Z,
% ,min

Hardness
HB,max

JIS G4104 SCr420

-

400-650

20

-

-

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