Product Name | 42CrMo/4140 Seamless cold drawn tube ready to honed tube high precision |
Material | 42CrMo/4140 |
Delivery Condition | BK, BK+S, GBK, NBK |
Straightness | ≤ 0.5/1000 |
Roughness | 0.2-0.4 u |
Diameter | 6mm - 1000mm |
Length | 1000mm - 12000mm |
Tolerance EXT | DIN2391, EN10305, GB/T 1619 |
Technology | perforation /acid pickling / phosphorization /cold drawn /cold rolled /annealing/ anaerobic annealing |
Protection | anti-rust oil on inside and outside surface, plastic caps in both ends. |
Used | Hydraulic Cylinders and so on. |
Packing: | bundle with steel strip and PE sheet package or wooden case. |
Tolerance INT | H7, H8, H9 |