China 40cr Liner Bolt Mine Mill Liner Bolt Fastener, Find details about China Mill Liner Bolt, Fastener from 40cr Liner Bolt Mine Mill Liner Bolt Fastener
Material Grade: 40Cr
Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade
Sizes: M20,M24, M27,M30,M36,M42,M45
Bolt-head Shape: oval head, square head,ellipse head
Service Life Guarantee: 12 months under normal working condition
Chemical Composition:Composition (%) | C | Si | Mn | Cr | Ni | S | P | Cu |
40Cr | 0.37-0.44 | 0.17-0.37 | 0.5-0.8 | 0.8-1.0 | ≤0.3 | ≤0.035 | ≤ 0.035 | ≤0.03 |