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外径×壁厚/mm | ||||
10.3×0.15 |
12.4×0.20 |
15.4×0.20 |
18.4×0.20 |
24.0×0.20 |
24.4×0.20 |
26.4×0.20 |
32.4×0.20 |
35.0×0.50 |
40.4×0.20 |
40.6×0.30 |
41.0×0.50 |
41.2×0.60 |
48.0×0.25 |
50.5×0.25 |
53.2×0.60 |
55.0×0.50 |
59.6×0.30 |
60.0×0.25 |
60.0×0.50 |
61.0×0.35 |
61.0×0.50 |
61.2×0.60 |
67.6×0.30 |
67.8×0.40 |
70.2×0.60 |
74.0×0.50 |
75.5×0.25 |
75.6×0.30 |
82.8×0.40 |
83.0×0.50 |
89.6×0.30 |
89.8×0.40 |
90.2×0.40 |
90.5×0.25 |
90.7×0.30 |
90.8×0.40 |
95.6×0.30 |
101.0×0.50 |
102.6×0.30 |
|
110.9×0.45 |
125.7×0.35 |
150.×80.40 |
250.8×0.40 |
直径/mm |
普通级/mm |
高级/mm |
10~250 |
+0.05
-0.10 |
±0.05 |
钢管尺寸/mm |
壁厚允许偏差/mm | ||
外径 |
壁厚 |
普通级 |
高 级 |
≤60 |
≤0.20 |
±0.03 |
+0.03
-0.0l |
0.25 |
+0.04
-0.03 |
+0.03
-0.02 | |
0.30 |
±0.04 |
±0.03 | |
0.35 |
+0.05
-0.04 |
+0.04
-0.03 | |
≤60 |
0.40 |
±0.05 |
±0.04 |
0.50 |
±0.06 |
+0.05
-0.04 | |
0.60 |
±0.08 |
±0.05 | |
>60 |
≤0.25 |
±0.04 |
±0.03 |
0.30 |
±0.04 |
+0.04
-0.03 | |
0.35 |
±0.05 |
±0.04 | |
0.40 |
±0.05 |
+0.05
-0.04 | |
0.50 |
±0.06 |
±0.05 | |
0.60 |
±0.08 |
±0.05 |
牌 号 |
化学成分(质量分数)(%) | ||||||||
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Ti |
Mo | |
00Cr18Ni10 |
≤0.03 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.035 |
17-19 |
8-12 |
|
|
1Cr18Ni9Ti |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.035 |
17-19 |
8-11 |
5(C%-0.02)-0.8 |
|
00Cr17Ni14Mo2 |
≤0.03 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.035 |
16-18 |
12-16 |
|
1.8-2.5 |
1Cr18Ni12Mo2Ti |
≤0.12 |
≤1.00 |
≤2.oo |
≤0.030 |
≤0.035 |
16-19 |
11-14 |
5(C%-0.02)-0.8 |
1.8-2.5 |
1Cr18Ni12Mo3Ti |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.035 |
16-19 |
11-14 |
5(C%- 0.02)-0.8 |
2.5-3.5 |
牌 号 |
力学性能≥ |
化学性能 | |
b/MPa |
5(%) | ||
00Crl8Nil0 |
440 |
40 |
钢管应按T法进行晶间腐蚀倾向试验。
试验结果不得有晶间腐蚀倾向 |
1Crl8Ni9Ti |
550 |
40 | |
00Crl7Nil4Mo |
480 |
40 | |
1Crl8Nil2M02Ti |
540 |
35 | |
1Crl8Nil2M03Ti |
540 |
35 |
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