Basic information of steel Name: sulfur-based cutting
Grade Country: China Cutting Steel GB YB
Density: 7.85 cm / g * 3
Implementation of the standards: GB / T 8731-2008
Grade Category: due to a high content of sulfur added (S), and therefore belong to the sulfur-based cutting steel cutting steel _ performance characteristics compared with the low-carbon steel cutting structural steel, free cutting steel tensile strength is relatively good

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