4140 Oval Head Bolt,42CrMo High Strength Cement Mill Liner Bolts M48x150mm
Material Grade: 4140(42CrMo)
Quality Level: 12.9, 10.9, 8.8, 6.8, 4.8 Grade
Sizes: M20,M24, M27,M30,M36,M42,M45;
Specification:M48 x 150,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;
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 Composition:
| Composition(%) |
C |
Si |
Mn |
S |
P |
Cr |
Mo |
| 42CrMo(4140 Grade8.8) |
0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.035 |
≤0.035 |
0.90-1.20 |
0.15-0.30
|
