钢级 | WPHY42 | WPHY46 | WPHY52 | WPHY60 | WPHY65 | WPHY70 |
拉强度MPa) | 415-585 | 435-605 | 455-625 | 515-690 | 530-705 | 550-725 |
小屈服强度(MPa) | 290 | 315 | 360 | 415 | 450 | 485 |
C | Mn | P | S | Si | Ni | Cr | Mo | Cu |
≤0.2 | 1-1.45 | ≤0.03 | ≤0.01 | 0.15-0.4 | ≤0.5 | ≤0.3 | ≤0.25 | ≤0.35 |
V | Ti | Cb | V+Cu | |||||
≤0.1 | ≤0.05 | ≤0.04 | ≤0.04 |
试样尺寸,mm | 平均值/小值,J |
10 × 10 | 40/34 |
10 × 7.5 | 34/28 |
10 × 5 | 27/23 |
试样 | WPHY42 | WPHY46 | WPHY52 | WPHY60 | WPHY65 | WPHY70 |
标距为4D的标准圆形试样或小尺寸比例试样的小值 | 25 | 25 | 25 | 20 | 20 | 20 |
5/16英寸(7.94mm)及其以上壁厚的矩形试样,和所有在全截面下试验的小尺寸试样,标距为2inch(50mm) | 32 | 32 | 32 | 28 | 28 | 28 |
5/16英寸(7.94mm)以下壁厚的矩形试样, 标距为2inch(50mm)(试样宽1.1/2inch,40mm) | 注 | 注 | 注 | 注 | 注 | 注 |