| 品名 | 不锈钢焊管 | 规格 | 20-800 |
|---|---|---|---|
| 材质 | 304.316.321.2205.2520.904L | 外径 | 20-800 mm |
| 壁厚 | 1-60 mm | 形状 | 圆管 |
| 用途 | 工业不锈钢管 |
4、焊接钢管 (GB/T12700-1991)的相关知识
用途：用于制造机械，汽车，自行车，装饰及其他机械部件与结构件
|
名称 |
说明 |
|
钢管外径和壁厚尺寸规格 |
外径和壁厚按表6-110的规定（壁厚0.3mm，0.4mm不适用GB/T12770-1991） |
|
钢管尺寸允许偏差 |
外径和壁厚允许偏差按表6-110的规定 |
表2 机械结构用不锈钢焊接钢管的牌号和化学成分
|
牌号 |
化学成分（质量分数） (%) |
|||||||
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
其他 |
|
|
00Cr19Ni11 |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
9.00~13.00 |
18.00~20.00 |
- |
|
00Cr17Ni14Mo2 |
≤0.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
12.00~15.00 |
16.00~18.00 |
Mo2.00~3.00 |
|
0Cr19Ni9 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00~10.00 |
18.00~20.00 |
- |
|
1Cr19Ni9 |
≤0.15 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00~10.00 |
17.00~19.00 |
- |
|
(1CR18Ni9Ti) |
≤0.12 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00~11.00 |
17.00~19.00 |
Ti5(C%-0.02)~0.80 |
|
0Cr17Ni12Mo2 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
10.00~14.00 |
16.00~18.00 |
Mo2.00~3.00 |
|
0Cr18Ni11Nb |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
9.00~13.00 |
17.00~19.00 |
Nb≥10xC% |
|
0Cr25Ni20 |
≤0.08 |
≤1.50 |
≤2.00 |
≤0.035 |
≤0.030 |
19.00~22.00 |
24.00~26.00 |
- |
|
1Cr17 |
≤0.12 |
≤0.75 |
≤1.00 |
≤0.035 |
≤0.030 |
- |
16.00~19.00 |
Ti 或Nb0.10~1.00 |
|
1Cr15 |
≤0.12 |
≤1.00 |
≤1.00 |
≤0.035 |
≤0.030 |
- |
16.00~18.00 |
- |
|
0Cr13 |
≤0.08 |
≤1.00 |
≤1.00 |
≤0.035 |
≤0.030 |
- |
11.50~13.50 |
- |
|
1Cr13 |
≤0.15 |
≤1.00 |
≤1.00 |
≤0.035 |
≤0.030 |
- |
11.50~13.50 |
- |
304焊接管
不锈钢大口径焊接管
工业焊接管
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