| 钢材:d ≤ 16mm;t ≤ 8mm |
淬火+回火(+QT) |
980~1180 |
≥785 |
≥11 |
≥40 |
|
|
| 钢材:16mm ≤ d ≤ 40mm;8mm ≤ t ≤ 20mm |
淬火+回火(+QT) |
930~1130 |
≥735 |
≥11 |
≥40 |
|
≥35 |
| 钢材:40mm ≤ d ≤ 100mm;20mm ≤ t ≤ 60mm |
淬火+回火(+QT) |
880~1080 |
≥685 |
≥12 |
≥45 |
|
≥40 |
| 钢材:100mm ≤ d ≤ 160mm;60mm ≤ t ≤ 100mm |
淬火+回火(+QT) |
830~980 |
≥635 |
≥12 |
≥50 |
|
≥40 |
| 钢材:160mm ≤ d ≤ 250mm;100mm ≤ t ≤ 160mm |
淬火+回火(+QT) |
740~880 |
≥540 |
≥13 |
≥50 |
|
≥40 |
| 钢材: |
处理到具有一定剪切性(+S) |
|
|
|
|
① |
|
| 钢材: |
软化退火(+A) |
|
|
|
|
≤240 |
|