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.
| 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 |
