機械結構用不銹鋼焊接鋼管(GB/T12700-1991)
名 稱 |
說 明 |
鋼管外徑和壁厚尺寸規格 |
外徑和壁厚按表6-110的規定(壁厚0.3mm、0.4mm不適用GB/T12770---1991) |
鋼管尺寸允許偏差 |
外徑和壁厚允許偏差按表6-111的規定 |
牌 號 |
化學成分(質量分數)(%) | |||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
其 他 | |
00crl9Nill |
≤0.030 |
≤1.00 |
≤2.00 |
≤O.035 |
≤0.030 |
9.00~
13.00 |
18.00~
20.00 |
|
00Cr17Ni14Mo2 |
≤0.030 |
≤1.00 |
≤2.00 |
≤O.035 |
≤O.030 |
12.00~
15.00 |
16.00~
18.00 |
M02.00~3.00 |
0Crl9Ni9 |
≤O.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00~
10.00 |
18.00~
20.00 |
|
1Crl8Ni9 |
≤O.15 |
≤1.00 |
≤2.00 |
≤O.035 |
≤0.030 |
8.00~
lO.00 |
17.00~
19.00 |
|
(1Crl8Ni9Ti) |
≤0.12 |
≤1.00 |
≤2.00 |
≤O.035 |
≤O.030 |
8.00~
11.00 |
17.oo~
19.00 |
Ti5(C%一O.02)
~O.80 |
OCrl7Nil2M02 |
≤O.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
10.00~
14.00 |
16.00~
18.00 |
M02.00~3.00 |
OCrl8Ni11NB |
≤O.08 |
≤1.00 |
≤2.00 |
≤O.035 |
≤0.030 |
9.00~
13.oo |
17.00~
19.00 |
Nb≥10×C% |
0Cr25Ni20 |
≤O.08 |
≤1.50 |
≤2.00 |
≤O.035 |
≤0.030 |
19.00~
22.00 |
24.00~
26.00 |
|
lCrl7 |
≤O.12 |
≤O.75 |
≤1.00 |
≤O.035 |
≤0.030 |
|
16.00~
19.00 |
Ti或Nbo.10~1.00 |