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S45C steel

JISG4051 S45C steel Description
JISG4051 S45C steel is a medium carbon steel is used when greater strength and hardness is desired than in the "as rolled" condition. Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Turned, ground and polished.

JISG4051 S45C steel Applications
Quenched and subsequently tempered steel for screws, forgings, wheel tyres, shafts, sickles, axes, knives, wood working drills, hammers, etc.

The equivalent standards of S45C steel 

  S45C
JIS G 4051

Comparision of steel grades

DIN 1C45
AISI 1045
UNI 7846 -
BS 970 -
UNE 36011 -
SAE J 403-AISI -

Chemical Composition of S45C steel

Grade C Si Mn P(%)
max
S(%)
max
Cr(%)
max
Ni(%)
max
Cu(%)
max
S45C 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.25 0.25

Mechanical Properties of S45C steel

Tensile
Strength
σb(MPa)
Yield Strength
σS(MPa)  
Elon-
Gation Ration
δ5 (%)
Reduction of area
Psi(%)
Impact merit
AKV (J)
Resilient value
AKV(J/cm2)
Degree of
hardness
Annealed
steel
Test
Specimen
Size
(mm)
≥600 ≥355 ≥16 ≥40 ≥39 ≥49 ≤229HB ≤197HB 25