China 10.9 Level Cement Mill Bolts High Strength Bolts and Nuts for Mine Mill Liners, Find details about China 40cr, Bolt from 10.9 Level Cement Mill Bolts High Strength Bolts and Nuts for Mine Mill Liners
Material Grade: 40Cr;
Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade
Sizes: M20,M24, M27,M30,M36,M42,M45;
Specification: M48 x 180, M48 x 210, M48 x 330, M48 x 370, M48 x 390,M48 x 600, M48 x 700, M48 x 900, M48 x 1080
Bolt-head Shape: oval head, square head,ellipse head;
Service Life Guarantee: 12 months under normal working condition
Application: Bolt Units for SAG Mill dia.7.39m
Destination: Export to Russia
Special Features:
1. The high strength bolts have been widely used in large ball mills up to dia.12-meter mills.
2. The high strength screws can be reliably used in small,middle and large cement mills,coal mils and mine mills.
3. The high strength bolts have been properly heat-treated to achieve better mechanical properties.
4. The standard bolt units include one rubber ring,concave washer,spring washer and nut.
Chemical Component:
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 |