GBT 结构用不锈钢无缝钢管参数.docx
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GBT 结构用不锈钢无缝钢管参数.docx
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GBT结构用不锈钢无缝钢管参数
3.结构用不锈钢无缝钢管(GB/T14975-1994)
(1)尺寸规格6-17,6-18
(2)允许偏差6-20(3)牌号和化学成分6-19
(4)力学性能6-21(5)用途适于一般结构及机械结构用
表6-17结构用不锈钢热压(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
18
19
20
22
24
25
26
28
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:
◎表示热轧钢管规格。
表6-18结构用不锈钢冷拔(轧)无缝钢管的尺寸规格
外径壁厚
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
9.0
9.5
10
11
12
13
14
15
10
●
●
●
●
●
●
●
●
11
●
●
●
●
●
●
●
●
12
●
●
●
●
●
●
●
●
●
●
13
●
●
●
●
●
●
●
●
●
●
14
●
●
●
●
●
●
●
●
●
●
●
●
15
●
●
●
●
●
●
●
●
●
●
●
●
16
●
●
●
●
●
●
●
●
●
●
●
●
●
17
●
●
●
●
●
●
●
●
●
●
●
●
●
18
●
●
●
●
●
●
●
●
●
●
●
●
●
●
19
●
●
●
●
●
●
●
●
●
●
●
●
●
●
20
●
●
●
●
●
●
●
●
●
●
●
●
●
●
21
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
22
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
23
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
24
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
25
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
27
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
28
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
30
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
32
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
34
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
36
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
38
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
40
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
42
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
45
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
48
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
50
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
51
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
53
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
54
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
56
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
57
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
60
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
63
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
65
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
68
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
70
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
73
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
75
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
76
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
80
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
83
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
85
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
89
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
90
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
95
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
100
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
102
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
108
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
114
●
●
●
●
●
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●
●
●
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●
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●
●
●
●
●
●
127
●
●
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●
●
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●
●
●
●
●
●
●
●
133
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
140
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
146
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
159
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
注:
1.●表示冷拔(轧)钢管规格。
2.钢管的通常长度规定如下:
热轧(挤,扩)钢管……………………………………………………………………………………………2~12
冷拔(轧)钢管…………………………………………………………………………………………………..1~8m
3.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6-19结构用不锈钢无缝钢管的牌号和化学成分
组
织
类
型
牌号
化学成分(质量分数)(%)
序号
C
Si
Mn
P
S
Ni
Cr
Mo
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
1Cr18Ni9
≤0.15
≤1.00
≤2.00
≤0.035
≤0.030
8.00~10.00
17.00~19.00
-
-
3
00Cr19Ni10
≤0.030
≤1.00
≤2.00
≤0.035
≤0.030
8.00~12.00
18.00~20.00
-
-
4
0Cr18Ni10Ti
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
9.00~12.00
17.00~19.00
-
Ti≥5C%
5
0Cr18Ni11Nb
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
9.00~13.00
17.00~19.00
-
Nb≥10C%
6
0Cr17Ni12Mo2
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
10.00~14.00
16.00~18.50
2.00~3.00
-
7
00Cr17Ni14Mo2
≤0.030
≤1.00
≤2.00
≤0.035
≤0.030
12.00~15.00
16.00~18.00
2.00~3.00
-
8
0Cr18Ni12Mo2Ti
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
11.00~14.00
16.00~19.00
1.80~2.50
Ti5C%~0.70
9
1Cr18Ni12Mo2Ti
≤0.12
≤1.00
≤2.00
≤0.035
≤0.030
11.00~14.00
16.00~19.00
1.80~2.50
Ti5(C%-0.02)~0.80
10
0Cr18Ni12Mo3Ti
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
11.00~14.00
16.00~19.00
2.50~3.50
Ti5C%~0.70
11
1Cr18Ni12Mo3Ti
≤0.12
≤1.00
≤2.00
≤0.035
≤0.030
11.00~14.00
16.00~19.00
2.50~3.50
Ti5(C%-0.02)~0.80
12
1Cr18Ni9Ti
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
8.00~11.00
17.00~19.00
-
Ti5(C%-0.02)~0.80
13
0Cr19Ni13Mo3
≤0.08
≤1.00
≤2.00
≤0.035
≤0.030
11.00~15.00
18.00~20.00
3.00~4.00
-
14
00Cr19Ni13Mo3
≤0.030
≤1.00
≤2.00
≤0.035
≤0.030
11.00~15.00
18.00~20.00
3.00~4.00
-
铁
素
体
型
15
0Cr13
≤0.08
≤0.60
≤0.80
≤0.035
≤0.030
*
12.00~14.00
-
-
16
1Cr17
≤0.12
≤0.75
≤1.00
≤0.035
≤0.030
*
16.00~18.00
-
-
马
氏
体
型
17
1Cr13
≤0.15
≤1.00
≤1.00
≤0.035
≤0.030
*
11.50~13.50
-
-
18
2Cr13
0.16~0.25
≤1.00
≤1.00
≤0.035
≤0.030
*
12.00~14.00
-
-
注:
*残余元素Ni≤0.60。
表6-20结构用不锈钢无缝钢管的尺寸允许偏差
热压(挤,扩)钢管
冷拔(轧)钢管
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
10≤D≤30
±0.30
±0.20
159 ±1.5 30
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