China · YB

45B

YB/T 5301:2010 — Alloy structure steel wires

Chemical composition

ElementminmaxSimilarRemarks
B0.00050.0035
C0.420.49
Cr0.3
Cu0.3
Mn0.60.9
Mo0.15
Ni0.3
P0.035
S0.035
Si0.170.37

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel wire, cold drawn≤1080HB ≤302
steel wire, annealed≤930HB ≤296