Mechanical properties of hot-rolled state of delivery:
Tensile strength Rm / (N / mm2): 560 ~ 800
Elongation A /% ≥: 12
Reduction of Z /% ≥: 20
Brinell hardness HBW≤: 229
Cold-drawn state of delivery:
Tensile strength Rm / (N / mm2) _ steel nominal size 8 ~ 20mm: 695 ~ 980
Tensile strength Rm / (N / mm2) _ steel nominal size> 20 to 30: 655 - 880
Tensile strength Rm / (N / mm2) _ steel nominal size> 30mm: 580 ~ 880
Elongation A /% ≥: 6.0
Brinell hardness HBW: 196 ~ 255 diameter less than Y45 cutting steel wire 8mm, and its mechanical properties may be negotiated by both parties | 
