GB T149761994 流体输送用不锈钢无缝钢管参数.docx
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GBT149761994流体输送用不锈钢无缝钢管参数
流体输送用不锈钢无缝钢管（GB/T14976-1994）
（1）尺寸规格6-25,6-26
（2）允许偏差6-27
（3） 牌号和化学成分6-28（4）力学性能6-29
表6-25流体输送用不锈钢热轧（挤，扩）无缝钢管的尺寸规格
外径
壁厚
4.5
5
6
7
8
9
10
11
12
13
14
15
16
17
19
68
◎
◎
◎
◎
◎
◎
◎
◎
◎
70
◎
◎
◎
◎
◎
◎
◎
◎
◎
73
◎
◎
◎
◎
◎
◎
◎
◎
◎
76
◎
◎
◎
◎
◎
◎
◎
◎
◎
80
◎
◎
◎
◎
◎
◎
◎
◎
◎
83
◎
◎
◎
◎
◎
◎
◎
◎
◎
89
◎
◎
◎
◎
◎
◎
◎
◎
◎
95
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
102
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
108
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
114
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
121
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
127
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
133
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
140
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
146
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
152
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
159
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
168
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
180
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
194
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
219
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
245
◎
◎
◎
◎
◎
◎
◎
◎
◎
237
◎
◎
◎
◎
◎
◎
◎
325
◎
◎
◎
◎
◎
◎
◎
351
◎
◎
◎
◎
◎
◎
◎
377
◎
◎
◎
◎
◎
◎
◎
426
◎
◎
◎
◎
◎
◎
◎
注:
1.◎表示热轧管规格。
2．根据需方要求，经供需双方协议，可供应表6-25和表6-26规格以外的其他尺
寸的钢管，尺寸偏差执行相邻较大规格的规定。
表6-26流体输送用不锈钢冷拔（轧）钢管的尺寸规格
外径
壁厚
0.5
0.6
0.8
1.0
1.2
1.4
1.5
1.6
2.0
2.2
2.5
2.8
3.0
3.2
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10
11
12
13
14
15
6
●
●
●
●
●
●
●
●
●
7
●
●
●
●
●
●
●
●
●
8
●
●
●
●
●
●
●
●
●
9
●
●
●
●
●
●
●
●
●
●
●
10
●
●
●
●
●
●
●
●
●
●
●
11
●
●
●
●
●
●
●
●
●
●
●
12
●
●
●
●
●
●
●
●
●
●
●
●
●
13
●
●
●
●
●
●
●
●
●
●
●
●
●
14
●
●
●
●
●
●
●
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●
●
●
●
●
●
15
●
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●
●
16
●
●
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●
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●
●
●
●
●
●
17
●
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●
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●
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●
●
18
●
●
●
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●
●
19
●
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●
●
20
●
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●
21
●
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●
22
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23
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24
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25
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27
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●
28
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●
30
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●
32
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34
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35
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36
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38
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●
40
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42
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45
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48
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50
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51
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53
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54
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56
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57
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60
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63
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65
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68
●
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70
●
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73
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●
75
●
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●
76
●
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●
80
●
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83
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●
85
●
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89
●
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●
●
●
●
●
●
90
●
●
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●
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●
●
●
●
●
●
●
●
●
●
95
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
100
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
102
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
108
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
114
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
127
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
133
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
140
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
146
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
159
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
168
180
194
219
245
273
325
351
377
426
注：
●表示冷拔（轧）钢管规格。
表6-27流体输送用不锈钢无缝钢管的尺寸允许规格偏差壁厚
热轧（挤压，扩）管
冷拔（轧）管
尺寸/mm
允许偏差/mm
尺寸/mm
允许偏差/mm
普通级
较高级
普通级
较高级
外径
D
68≤D≤159
±1.25
±1
外径
D
6~10
±0.20
±0.15
>10~30
±0.30
±0.20
159±1.5
>30~50
±0.40
±0.30
>50
±0.9%
±0.8%
壁厚
S
>15
+15
-12.5
±12.5
壁厚
S
0.5~1
±0.15
±14%
±0.12
>1~3
+12%
-10%
≥15
+20
-15
>3
+12%
-10%
±10%
注：
钢管的弯曲度不得大于如下规定：
壁厚<15mm………………………………………………………1.5mm/m
壁厚≥15mm………………………………………………………2.0mm/m
热扩管………………………………………………………3.0mm/m
表6-28流体输送用不锈钢无缝钢管的牌号和化学成分
组织类型
序号
牌号
化学成分（质量分数）（%）
C
Si
Mn
P
S
Ni
Cr
Mo
Ti
其他
奥
氏
体型
1
0Cr18Ni9
≤0.07
≤1.00
≤2.00
≤0.035
≤0.030
8.00~
11.00
17.00~
19.00
-
-
-
2
00Cr19Ni10
≤0.030
≤1.00
≤2.00
≤0.035
≤0.0300
8.00~
12.00
18.00~
20.00
-
-
-
3
0Cr23Ni13
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
12.00~
15.00
22.00~
24.00
-
-
-
4
0Cr25Ni20
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
19.00~
22.00
24.00~
26.00
-
5wc~0.70
-
5
0Cr18Ni10Ti
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
9.00~
12.00
17.00~
19.00
-
≥5wc
-
6
0Cr18Ni11Nb
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
9.00~
13.00
17.00~
19.00
-
-
Nb≥10wc
7
0Cr17Ni14Mo2
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
10.00~
14.00
16.00~
18.50
2.00~3.00
-
-
8
00Cr17Ni14Mo2
≤0.030
≤1.00
≤2.00
≤0.035
≤0.030
12.00~
15.00
16.00~
18.00
2.00~3.00
-
-
9
0Cr19Ni13Mo3
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
11.00~
15.00
18.00~
20.00
3.00~4.00
-
-
10
00Cr19Ni13Mo3
≤0.030
≤1.00
≤2.00
≤0.035
≤0.030
11.00~
15.00
18.00~
20.00
3000~4.00
-
-
11
0Cr18Ni12Mo2Ti
≤0.08
≤1.
升级会员 