13961837282
13961837282
| 钢种 | 交货状态的最小值 a.b | ||||||||||||
| 序号 | 钢级 |
Cold fnished (hard) (BK) |
Cold finished (sof) (BKW) |
Cold finished and' stress-elieved (BKS) |
Annealed (GBK) |
Normalized(NBK) | |||||||
|
Rm MPa |
A % |
Rm MPa |
A % |
Rm MPa |
ReH MPa |
A % |
Rm MPa |
A % |
Rm MPa |
ReH MPa |
A % |
||
| 1 | St35/E235 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340~470 | 235 | 25 |
| 2 | SN45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440~570 | 255 | 21 |
| 3 | St52/E355 | 640 | 4 | 580 | 7 | 580 | 450f | 10 | 450 | 22 | 490~630 | 355 | 22 |
|
钢级 Grade |
Conditin | Tensile Strength | Yield Strength | Elongation, % | ||
| ksi | MPa | ksi | MPa | |||
| 1020 | HR | 50 | 345 | 32 | 220 | 25 |
| CW | 70 | 485 | 60 | 415 | 5 | |
| SR | 65 | 450 | 50 | 345 | 10 | |
| A | 48 | 330 | 28 | 195 | 30 | |
| N | 55 | 380 | 34 | 235 | 22 | |
| 1045 | HR | 75 | 515 | 45 | 310 | 15 |
| CW | 90 | 620 | 80 | 550 | 5 | |
| SR | 80 | 550 | 70 | 485 | 8 | |
| A | 65 | 450 | 35 | 240 | 20 | |
| N | 75 | 515 | 48 | 330 | 15 | |
| 4130 | HR | 90 | 620 | 70 | 485 | 20 |
| SR | 105 | 725 | 85 | 585 | 10 | |
| A | 75 | 515 | 55 | 380 | 30 | |
| N | 90 | 620 | 60 | 415 | 20 |
