Carbon Seamless Steel Tubes (GB/T 17396 40MnNbRe）
Product Categary:
Cold Drawn Seamless Tubes (Mec
Main Feature:
Desc
product description
Description:
Carbon Seamless Steel Tubes (GB/T 17396 40MnNbRe）
Carbon Seamless Steel Tubes (GB/T 17396 40MnNbRe）
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,
| Standard | Grade | C | SI | MN | P | S | CR | NI | CU |
| GB/T 17396 | 40MnNbRe | 0.27-0.36 | 0.50~0.80 | 1.10~1.40 | ≤0.035 | ≤0.035 | ≤0.030 | ≤0.030 | ≤0.030 |
| Mechanical Properties | |||||||||
| Grade | Test piece with heat treatment | Yield strength | Tensile strength | Elongation | Impact energy | HBW | |||
| /not less than | |||||||||
| 30MnNbRe | 880 centigrade±20 centigrade/Water quench | 850 | 725 | 13 | 49 | - | |||
| 450 centigrade±50 centigrade/Temper | |||||||||
| /Cooling: air | |||||||||
