機(jī)械結(jié)構(gòu)用不銹鋼焊接鋼管（GB／T12700-1991）
|
名 稱(chēng) |
說(shuō) 明 |
|
鋼管外徑和壁厚尺寸規(guī)格 |
外徑和壁厚按表6-110的規(guī)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(guī)定 |
|
牌 號(hào) |
化學(xué)成分(質(zhì)量分?jǐn)?shù))(％) | |||||||
|
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 |
