GB/T12770-2002（机械结构用不锈钢焊接钢管）。主要用于机械、汽车、自行车、家具、宾馆和饭店装饰及其他机械部件与结构件。其代表材质0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb等。
GB/T12771-2008（流体输送用不锈钢焊接钢管）。主要用于输送低压腐蚀性介质。代表材质为06Cr19Ni10、022Cr19Ni10、06Cr19Ni110Ti、00Cr17、0Cr18Ni11Nb、06Cr17Ni12Mo2等。
重量计算公式
常用：材质
304/304L（直径 - 壁厚）x壁厚x0.02491x长度=重量（kg）
材质316/316L（直径 - 壁厚）x壁厚x0.02513x长度=重量（kg）
单位：kg/m
|
|
|
304（壁厚） |
316L（壁厚） |
|
| |
DN |
美标(mm) |
国标(mm) |
2-2.5mm |
3-8mm |
10-25mm |
2-2.5mm |
3-8mm |
10-25mm |
小中大管 |
| 22 |
15 |
21.34 |
19 |
22.5 |
|
|
33 |
|
|
|
| 23 |
20 |
26.67 |
25 |
22.5 |
21 |
|
33 |
33 |
|
|
| 24 |
25 |
33.4 |
32 |
22.5 |
21 |
|
33 |
33 |
|
|
| 25 |
32 |
42.16 |
38 |
22.5 |
21 |
|
33 |
33 |
|
|
| 26 |
40 |
48.26 |
45 |
22.5 |
21 |
|
33 |
33 |
|
|
| 27 |
50 |
60.33 |
57 |
22.5 |
21 |
|
33 |
33 |
|
|
| 28 |
65 |
76.1 |
73 |
22 |
20.5 |
|
33 |
33 |
|
|
| 29 |
80 |
88.9 |
89 |
22 |
20.5 |
|
33 |
33 |
|
|
| 30 |
90 |
101.6 |
|
22 |
20.5 |
|
33 |
33 |
|
|
| 31 |
100 |
114.3 |
108 |
21.5 |
20.5 |
|
33 |
33 |
|
|
| 32 |
125 |
141.3 |
133 |
21.5 |
20.5 |
|
33 |
33 |
|
|
| 33 |
150 |
168.28 |
159 |
21 |
20.5 |
|
31 |
31 |
|
|
| 34 |
200 |
219.08 |
219 |
|
20 |
|
|
31 |
|
|
| 35 |
250 |
273.05 |
273 |
|
20 |
21 |
|
31 |
31 |
|
| 36 |
300 |
323.85 |
325 |
|
20 |
20.5 |
|
31 |
31 |
|
| 37 |
350 |
355.6 |
377 |
|
21.5 |
20.5 |
|
31.5 |
31.5 |
|
| 38 |
400 |
406.4 |
426 |
|
21.5 |
20.5 |
|
31.5 |
31.5 |
|
| 39 |
450 |
457.2 |
480 |
|
21.5 |
21 |
|
31.5 |
31.5 |
|
| 40 |
500 |
508 |
530 |
|
21.5 |
21 |
|
31.5 |
31.5 |
|
| 41 |
550 |
558.8 |
|
|
22 |
21 |
|
32 |
32 |
|
| 42 |
600 |
609.6 |
630 |
|
22 |
21 |
|
32 |
32 |
|
| 43 |
700 |
711.2 |
720 |
|
22 |
21 |
|
32 |
32 |
|
| 44 |
750 |
762 |
|
|
22 |
21 |
|
33 |
33 |
|
| 45 |
800 |
812.8 |
820 |
|
22 |
21.5 |
|
33 |
33 |
|
| 46 |
850 |
863.6 |
|
|
22 |
21.5 |
|
33 |
33 |
|
| 47 |
900 |
914.4 |
920 |
|
22 |
21.5 |
|
33 |
33 |
|
| 48 |
1000 |
1016 |
1020 |
|
22 |
21.5 |
|
33 |
33 |
|
