產(chǎn) 品 說 明 昆明地區(qū)不銹耐酸鋼極薄壁無縫鋼管的尺寸規(guī)格型號
|
外徑×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 |
注：1.根據(jù)需方要求，經(jīng)雙方協(xié)議，可供應(yīng)表中規(guī)定以外的其他尺寸規(guī)格鋼管。
2.鋼管通常長度為O.5-6m。
(2)允許偏差見表6-34、表6-35。
表6-34昆明不銹耐酸鋼極薄壁無縫鋼管的內(nèi)徑允許偏差
|
直徑／mm |
普通級／mm |
高級／mm |
|
10～250 |
+O.05
-O.10 |
±O.05 |
表6-35昆明不銹耐酸鋼極薄壁無縫鋼管的壁厚允許偏差
|
鋼管尺寸型號／mm |
壁厚允許偏差／mm | ||
|
外徑 |
壁厚 |
普通級 |
高 級 |
|
≤60 |
≤O.20 |
±O.03 |
+O.03
-O.Ol |
|
O.25 |
+0.04
-O.03 |
+O.03
-0.02 | |
|
O.30 |
±O.04 |
±0.03 | |
|
0.35 |
+O.05
-O.04 |
+0.04
-O.03 | |
|
≤60 |
0.40 |
±O.05 |
±O.04 |
|
O.50 |
±0.06 |
+O.05
-O.04 | |
|
O.60 |
±0.08 |
±0.05 | |
|
>60 |
≤O.25 |
±O.04 |
±0.03 |
|
O.30 |
±O.04 |
+0.04
-O.03 | |
|
O.35 |
±O.05 |
±0.04 | |
|
0.40 |
±O.05 |
+O.05
-O.04 | |
|
0.50 |
±0.06 |
士O.05 | |
|
O.60 |
±O.08 |
±O.05 | |
注：鋼管的每米彎曲度應(yīng)不大于5mm。
(3)牌號和化學(xué)成分見表6—36。
|
牌 號 |
|||||||||
|
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Ti |
Mo | |
|
≤O.03 |
≤1.00 |
≤2.00 |
≤O.030 |
≤O.035 |
17～19 |
8～12 |
|
| |
|
≤O.12 |
≤1.00 |
≤2.00 |
≤O.030 |
≤0.035 |
17～19 |
8～11 |
5(C％～0.02)～O.8 |
| |
|
00Crl7Ni14M02 |
≤O.03 |
≤1.00 |
≤2.00 |
≤0.030 |
≤0.035 |
16～18 |
12～16 |
|
l.8～2.5 |
|
1Crl8Nil2Mo2Ti |
≤0.12 |
≤1.00 |
≤2.oo |
≤0.030 |
≤O.035 |
16～19 |
11～14 |
5(C％～0.02)～0.8 |
l.8～2.5 |
|
1Crl8Nil2M03Ti |
≤O.12 |
≤1.00 |
≤2.00 |
≤O.030 |
≤0.035 |
16～19 |
11～14 |
5(C％～ O.02)～0.8 |
2.5～3.5 |
注：根據(jù)需方要求，經(jīng)雙方協(xié)議，可生產(chǎn)上表規(guī)定牌號以外的鋼管。
(4)力學(xué)和化學(xué)性能見表6_37。
|
牌 號 |
力學(xué)性能≥ |
化學(xué)性能 | |
|
b/MPa |
5(％) | ||
|
440 |
40 |
鋼管應(yīng)按T法進(jìn)行晶間腐蝕傾向試驗(yàn)。試驗(yàn)結(jié)果不得有晶間腐蝕傾向 | |
|
550 |
40 | ||
|
480 |
40 | ||
|
1Crl8Nil2M02Ti |
540 |
35 | |
|
1Crl8Nil2M03Ti |
540 |
35 | |