Global · Enterprise standard

SUMIHARD-K 340

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Chemical composition

wt% · log scale
0.0010.010.1110B0.003C0.21Mn1.6P0.025S0.01Si0.7
  • min – max range
  • typical value

Mechanical properties

value range by condition
HardnessHB

Chemical composition

ElementminmaxSimilarRemarks
B0.003
C0.21
Mn1.6
P0.025
S0.01
Si0.7

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
Plates, quenched or quenched and tempered, t =, 6.0 mm -, 100.0 mmHB 320–360 (3000 kg)