Seamless Steel Tubes for Hydraulic Prop (GB/T 17396 40)
Commdity name: Seamless Steel Tubes for Hydraulic Prop
Standard:
China National Standard
Uses:
For manufacturing cylinder and piston of hydraulic props for coal mine or other purposes
Size: As agreement
Package type: In bundle with Plastic protective film
Chemical Composition and Mechanical Properties pls check our excell as below,
| Chemical Composition | |||||||||
| Standard | Grade | C | SI | MN | P | S | CR | NI | CU |
| GB/T 17396 | 40 | 0.42~0.50 | 0.17~0.37 | 0.20~0.60 | ≤0.025 | ≤0.025 | ≤0.25 | ≤0.25 | ≤0.20 |
| Mechanical Properties | |||||||||
| Grade | Test piece with heat treatment | Yield strength | Tensile strength | Elongation | Impact energy | HBW | |||
| /not less than | |||||||||
| 45 | - | 590 | 335 | 14 | - | - | |||
