标准 |
牌号 |
化学成分 |
| ||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V> | ||
ASTM A192
ASME SA192 |
A192 |
0.06-0.18 |
≤0.25 |
0.27-0.63 |
≤0.035 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
钢管种类 |
外径(D) |
壁厚(S) | ||
外径尺寸(mm) |
允许偏差(mm) |
外径尺寸(mm) |
允许偏差(mm) | |
热轧管 |
≤101.6 |
+0.4~-0.8 |
76~168.3 |
+28%~0 |
>101.6~168.3 |
+0.4~-1.2 | |||
冷拔管 |
<25.4 |
+0.10 |
≤38.1 |
+20%~0 |
25.4~38.1 |
+0.15 | |||
>38.1~<50.8 |
+0.20 |
>38.1 |
+22%~0 | |
|
|