OD 15-75mm
Free
Free
Seamless
Cold Drawn
Carbon Steel
Oiled
Hydraulic/Automobile Pipe, Machinery Industry, Special Purpose
Round
Yes
15-75mm
1-14mm
Yes
Bright
bluesky pipe
Bund
China
7304319000
Product Description






| GRADE | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% |
| 10 | 335 | 205 | 24 |
| 15 | 375 | 225 | 22 |
| 20 | 410 | 245 | 20 |
| 25 | 450 | 275 | 18 |
| 35 | 510 | 305 | 17 |
| 45 | 590 | 335 | 14 |
| 20Mn | 450 | 275 | 20 |
| 25Mn | 490 | 295 | 18 |
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q345 | A | 470~630 | 345 | 20 | -- | -- |
| B | +20 | 34 | ||||
| C | 21 | 0 | ||||
| D | -20 | |||||
| E | -40 | 27 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q390 | A | 490~650 | 390 | 18 | -- | -- |
| B | +20 | 34 | ||||
| C | 19 | 0 | ||||
| D | -20 | |||||
| E | -40 | 27 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q420 | A | 520~680 | 420 | 18 | -- | -- |
| B | +20 | 34 | ||||
| C | 19 | 0 | ||||
| D | -20 | |||||
| E | -40 | 27 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q460 | C | 550~720 | 460 | 17 | 0 | 34 |
| D | -20 | |||||
| E | -40 | 27 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q500 | C | 610~770 | 500 | 17 | 0 | 55 |
| D | -20 | 47 | ||||
| E | -40 | 31 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q550 | C | 670~830 | 550 | 16 | 0 | 55 |
| D | -20 | 47 | ||||
| E | -40 | 31 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q620 | C | 710~880 | 620 | 15 | 0 | 55 |
| D | -20 | 47 | ||||
| E | -40 | 31 | ||||
| GRADE | Quality Grade | Tensile strength Rm | Yield strength Rel | Elongation after fracture A% | impact test | |
| temperature | absorb energy | |||||
| Q690 | C | 770~940 | 690 | 14 | 0 | 55 |
| D | -20 | 47 | ||||
| E | -40 | 31 | ||||








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