| No. | 0.D | W.T | O.D Deviation | W.T Deviation | The hardness of burr | Ellipticity | Flexib ility | Coaxiality | Outer tube flaring rate | Flatten |
| 1 | 89 | 3.0-4.0 | ±0.40 | +0.1/0.2 | +0.20/-0.05 | 0.40 | W0.30 | <0.20 | 10% | 2/3D |
| 2 | 108 | 3.0-5.0 | ±0.40 | ±5%t | +0.20/-0.05 | 0.40 | W0.30 | W0.20 | 10% | 2/3D |
| 3 | 127 | 3.0-5.0 | ±0.40 | ±5%t | +0.20/-0.05 | 0.40 | W0.30 | W0.20 | 10% | 2/3D |
| 4 | 133 | 3.5-5.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.53 | <0.30 | W0.20 | 10% | 2/3D |
| 5 | 152 | 3.5-6.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.53 | W0.30 | <0.20 | 10% | 2/3D |
| 6 | 159 | 3.5-6.0 | ±0.60 | ±5%t | +0.20/-0.05 | 0.60 | W0.30 | W0.20 | 10% | 2/3D |
| 7 | 178 | 5.0-8.0 | ±0.60 | ±7.5%t | +0.20/-0.05 | 0.53 | W0.30 | W0.20 | 10% | 2/3D |
| 8 | 194 | 5.0-8.0 | ±0.60 | ±7.5%t | +0.20/-0.05 | 0.6 | W0.30 | <0.20 | 10% | 2/3D |
| 9 | 219 | 5.0-8.0 | ±0.5%D | ±7.5%t | +0.20/-0.05 | 0.6 | W0.30 | <0.20 | 10% | 2/3D |
| Grade | Re|./(N/mm2) Lower yield strength | FUN mm” Tensile strength | A/% Elongation after fracture |
| Not less than | |||
| 08、10 | 195 | 315 | 22 |
| 15 | 215 | 355 | 20 |
| 20 | 235 | 390 | 19 |
| Q195 | 195 | 315 | 22 |
| Q215AQ215B | 215 | 335 | 22 |
| Q235A、Q235B、Q235C | 235 | 375 | 20 |
| Q295A、Q295B | 295 | 390 | 18 |
| Q345A、Q345B、Q345C | 345 | 470 | 18 |
| C250-CQ | 230 | 320 | 10 |
|
|
Re|./(N/mm2) Lower yield strength | RJfN/ mm2) Tensile strength | A/% Elongation after fracture |
| Grade | Not less than | ||
| 08、10 | 205 | 375 | 13 |
| 15 | 225 | 400 | 11 |
| 20 | 245 | 440 | 9 |
| Q195 | 205 | 335 | 14 |
| Q215A、Q215B | 225 | 355 | 13 |
| Q235A、Q235B、Q235C | 245 | 390 | 9 |
| Q295A、Q295B | —— | —— | —— |
| Q345A、Q345B、Q345C | —— | —— | —— |
