Related products : SS400 steel , SS330 steel , S35C steel

S20C

JIS G4051 S20C steel is widely used in the various fields. JIS G4051 S20C steel is mainly applied to machinery parts which requires high toughness and bears small stress,such as lever,axle sleeve,straining beam. JIS G4051 S20C steel can also be used in the line of agricultural machinery or cars, to produce carburization or carbonitriding parts,such as lever shaft,plunger.

JIS G4051 S20C steel are usually produced under the followed procedures: EAF arc furnace + LF purify affinage + VDF + ingot steel(bottom gating /argon) + forged + annealing + black polishing (turnery) + Sep 1921-C/c,D/d,E/e UT test +  smooth edges with sawing .

JIS G4051 S20C steel chemical composition by %,maximum

Grade

C

Si

Mn

P

S

JIS G4051 S20C

0.18-0.23

0.15-0.35

0.3-0.6

≤0.035

≤0.035

JIS G4051 S20C steel mechanical properties


Grade

Delivery State

T.S.
N/mm2
Min

Y.S.
N/mm2
Min

A,%
Min

Z,%
Min

Hardness,
(annealing or tempering) HB,max

Forging ratio

Grain Size
(level)

Nonmetal ratio

JIS G4051 S20C

Hot rolled, forged, or heat treatment

410

245

25

55

156

≥ 4:1

≥ 6

≤ 2.0

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