United Kingdom · B.S.

En4

BS 970

Chemical composition

wt% · log scale
0.010.1110C0.3Mn1P0.06S0.06Si0.05 – 0.35
  • min – max range
  • typical value

Mechanical properties

value range by condition
Tensile strength Rm432 MPaElongation A25 %bars, forgings, normalized, <=, 152.4 mm, billetsHardness钢坯bars, forgings, normalized, <=, 152.4 mm, HB

Chemical composition

ElementminmaxSimilarRemarks
C0.3
Mn1
P0.06
S0.06
Si0.050.35

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
bars, forgings, normalized, <=, 152.4 mm, billets432 587.0025
bars, forgings, normalized, <=, 152.4 mm, HB钢坯 126 179.00