40Cr Steel Liner Bolt M30 X 175mm ANSI Standard Fastener M30 x 175mm 40Cr Liner Bolt, Mine Mill Liner Bolt Fastener EB2267 Product Specifications Material Grade: 40Cr Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade Available 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 conditions 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
40Cr Steel Liner Bolt M30 X 175mm ANSI Standard Fastener M30 x 175mm 40Cr Liner Bolt, Mine Mill Liner Bolt Fastener EB2267 Product Specifications Material Grade: 40Cr Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade Available 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 conditions 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
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