China Black Annealed Cold Drawn Chq Wire Rod 10b21 Phosphated Lubed Fastener Carbon Boron Steel Wire, Find details about China Screw Wire, Cold Forging from Black Annealed Cold Drawn Chq Wire Rod 10b21 Phosphated Lubed Fastener Carbon Boron Steel Wire
Grade | Chemical Composition(%) | ||||||||||
C | Si | Mn | P | S | Al | Ti | B | Cr | Mo | V | |
10B21 | 0.18~0.23 | ≤0.10 | 0.70~1.00 | ≤0.030 | ≤0.035 | - | ≥0.0005 |