结构用不锈钢无缝钢管(GB/T14975—1994)
2008-01-30 16:39 来源: 我的钢铁
(1)尺寸规格见表6-17、表6-18。
(2)允许偏差见表6-20。
(3)牌号和化学成分见表6-19。
(4)力学性能见表6-21。
(5)用途适于一般结构及机械结构用。
表6-17结构用不锈钢热轧(挤、扩)无缝钢管的尺寸规格(mm)
壁厚
外径
|
4.5
|
5
|
6
|
7
|
8
|
9
|
10
|
ll
|
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
|
|
|
|
|
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
35l
|
|
|
|
|
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
377
|
|
|
|
|
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
426
|
|
|
|
|
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
表6-18结构用不锈钢冷拔(轧)无缝钢管的尺寸规格 (mm)
壁厚
外径
|
1.O
|
1.2
|
1.4
|
1.5
|
1.6
|
2.0
|
2.2
|
2.5
|
2.8
|
3.O
|
3.2
|
3.5
|
4.O
|
4.5
|
5.O
|
5.5
|
6.O
|
6.5
|
7.0
|
7.5
|
8.0
|
8.5
|
9.0
|
9.5
|
lO
|
ll
|
12
|
13
|
14
|
15
|
lO
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
19
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2l
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
22
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
23
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
24
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
壁厚
外径
|
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.O
|
5.5
|
6.0
|
6.5
|
7.O
|
7.5
|
8.O
|
8.5
|
9.O
|
9.5
|
lO
|
11
|
12
|
13
|
14
|
15
|
27
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
|
30
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
32
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
34
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
35
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
36
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
38
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
40
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
|
42
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
|
|
45
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
48
|
●
|
●
|
◆
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
|
50
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
51
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
|
53
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
|
54
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
◆
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
56
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
壁厚
外径
|
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.O
|
5.5
|
6.0
|
6.5
|
7.O
|
7.5
|
8.O
|
8.5
|
9.O
|
9.5
|
lO
|
11
|
12
|
13
|
14
|
15
|
57
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
60
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
63
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
65
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
68
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
70
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
73
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
75
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
|
|
78
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
|
|
|
80
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
83
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
85
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
89
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
90
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
95
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
100
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
◆
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
102
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
壁厚
外径
|
1.o
|
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.O
|
6.5
|
7.O
|
7.5
|
8.O
|
8.5
|
9.O
|
9.5
|
lO
|
11
|
12
|
13
|
14
|
15
|
108
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
114
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
127
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
133
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
140
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
146
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
159
|
|
|
|
|
|
|
|
|
|
|
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
●
|
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……………………………………………………2~12m
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.Omm/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
|
序号
|
牌 号
|
化学成分(质量分数)(%)
|
||||||||
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
C
|
Mo
|
其 他
|
|||
奥氏
体型
|
1
|
OCr18Ni9
|
≤0.07
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
8.00~11.00
|
17.00~19.00
|
|
|
2
|
lCrl8Ni9
|
≤O.15
|
≤1.00
|
≤2.00
|
≤O.035
|
≤O.030
|
8.00~lO.00
|
17.00~19.00
|
|
|
|
3
|
00Crl9NilO
|
≤0.030
|
≤1.00
|
≤2.00
|
≤0.035
|
≤O.030
|
8.00~12.00
|
18.00~20.00
|
|
|
|
4
|
0Crl8Ni10Ti
|
≤0.08
|
≤1.00
|
≤2.O0
|
≤O.035
|
≤O.030
|
9.00~12.00
|
17.00~19.00
|
|
Ti≥5C%
|
|
5
|
OCrl8NillNb
|
≤O.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
9.00~13.00
|
17.00~19.00
|
|
Nb≥10C%
|
|
6
|
0Crl7Nil2M02
|
≤0.08
|
≤1.00
|
≤2.00
|
≤O.035
|
≤O.030
|
10.00~14.00
|
16.00~18.50
|
2.00~3.00
|
|
|
7
|
00Crl7Nil4M02
|
≤0.030
|
≤1.00
|
≤2.00
|
≤O.035
|
≤0.030
|
12.00~15.00
|
16.00~18.oo
|
2.00~3.00
|
|
|
8
|
OCrl8Nil2M02Ti
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤O.030
|
11.00~14.00
|
16.00~19.00
|
1.80~2.50
|
Ti 5C%~O.70
|
|
9
|
1Crl8Nil2M02Ti
|
≤O.12
|
≤1.00
|
≤2.00
|
≤O.035
|
≤O.030
|
11.00~14.00
|
16.00~19.00
|
1.80~2.50
|
Ti 5(C%-0.02)
~0.80
|
|
lO
|
0Crl8Nil2M03Ti
|
≤0.08
|
≤1.00
|
≤2.00
|
≤O.035
|
≤0.030
|
11.00~14.00
|
16.oo~19.00
|
2.50~3.50
|
Ti5C%~O.70
|
|
11
|
1Crl8Ni12Mo3Ti
|
≤O.12
|
≤1.00
|
≤2.00
|
≤O.035
|
≤0.030
|
11.00~14.00
|
16.00~19.00
|
2.50~3.50
|
Ti 5(C%-0.02)
~0.80
|
|
12
|
1Crl8Ni9Ti
|
≤0.12
|
≤1.00
|
≤2.00
|
≤O.035
|
≤0.030
|
8.00~11.00
|
17.00~19.oo
|
|
Ti 5(C%~O.02)
~0.80
|
|
13
|
0Cr19Nil3M03
|
≤O.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤O.030
|
11.00~15.00
|
18.00~20.00
|
3.00~4.00
|
|
|
14
|
00Crl9Nil3M03
|
≤0.030
|
≤1.00
|
≤2.00
|
≤0.035
|
≤O.030
|
11.00~15.00
|
18.00~20.00
|
3.00~4.00
|
|
|
铁素
体型
马氏
体型
|
15
|
OCrl3
|
≤O.08
|
≤0.60
|
≤0.80
|
≤0.035
|
≤O.030
|
|
12.00~14.00
|
|
|
16
|
lCrl7
|
≤O.12
|
≤0.75
|
≤1.00
|
≤O.035
|
≤0.D30
|
|
16.00~18.00
|
|
|
|
17
|
1Crl3
|
≤O.15
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.030
|
|
11.50~13.50
|
|
|
|
18
|
2Crl3
|
O.16~0.25
|
≤1.00
|
≤1.00
|
≤O.035
|
≤O.030
|
|
12.00~14.00
|
|
|
|
注:*残余元素Ni≤O.60。
|
表6-20结构用不锈钢无缝钢管的尺寸允许偏差
热轧(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
|
±l
|
外径D
|
10≤D≤30
|
±O.30
|
土O.20
|
30
|
土O.40
|
±O.30
|
|||||
159
|
±1.5
|
||||||
D>5
|
±O.9%
|
±0.8%
|
|||||
壁厚
|
<15
|
+15
-12.5
|
±12.5
|
壁厚
|
≤3
|
±14%
|
+12%
-10%
|
≥15
|
+20
-15
|
>3
|
+12%
-10%
|
±lO%
|
注:供机械加工用钢管应在合同中注明,根据需方要求,经供需双方协议,可规定机械加工余量。
表6-2l结构用不锈钢无缝钢管的力学性能
组织类型
|
序号
|
牌 号
|
推荐热处理制度
|
力学性能
|
密度(g/cm3)
|
||
ób/MPa
|
ó0. 2/MPa
|
δ5(%)
|
|||||
≥
|
|||||||
奥氏体型
|
l
|
OCr18Ni9
|
lOl0~1150℃,急冷
|
520
|
205
|
35
|
7.93
|
2
|
lCrl8Ni9
|
1010~1150℃,急冷
|
520
|
206
|
35
|
7.90
|
|
3
|
00Crl9Ni10
|
1010~1150℃,急冷
|
480
|
175
|
35
|
7.93
|
|
4
|
OCrl8Nil0Ti
|
920~1150℃,急冷
|
520
|
206
|
35
|
7.95
|
|
5
|
0Crl8NillNb
|
980~1150cC,急冷
|
520
|
205
|
35
|
7.98
|
|
6
|
OCrl7Nil2M02
|
1010~1150℃,急冷
|
520
|
205
|
35
|
7.98
|
|
7
|
00Cr17Nil4M02
|
1010~1150℃。急冷
|
480
|
175
|
35
|
7.98
|
|
8
|
OCr18Mil2M02Ti
|
1000~1100℃,急冷
|
530
|
205
|
35
|
8.00
|
|
9
|
lCrl8Nil2M02Ti
|
1000~1100℃,急冷
|
530
|
205
|
35
|
8.00
|
|
10
|
oCr18Nil2M03Ti
|
1000~1100℃,急冷
|
530
|
205
|
35
|
8.10
|
|
11
|
1Crl8Nil2M03Ti
|
1000~1100℃。急冷
|
530
|
205
|
35
|
8.10
|
|
12
|
1Cr18Ni9Ti
|
1000~1100℃,急冷
|
520
|
205
|
35
|
7.90
|
|
13
|
0Crl9Nil3M03
|
10lO~1150℃,急冷
|
520
|
205
|
35
|
7.98
|
|
14
|
00Crl9Ni13M03
|
lOlO~1150℃,急冷
|
480
|
175
|
35
|
7.98
|
|
铁索体型
|
15
|
OCrl3
|
780~830℃,空冷或缓冷
|
370
|
180
|
22
|
7.70
|
16
|
lCrl7
|
780~850℃,空冷或缓冷
|
410
|
245
|
20
|
7.70
|
|
马氏体型
|
17
|
lCrl3
|
800~900℃,缓冷
|
410
|
205
|
20
|
7.70
|
18
|
2Crl3
|
800~900℃,缓冷
|
470
|
215
|
19
|
7.70
|
注:1.热挤压管的抗拉强度允许降低20MPa。
2.钢管经热处理并酸洗交货。凡经整体磨、镗或经保护气氛热处理的钢管,可不经酸洗交货。
3.供机械加工用钢管可不经酸洗交货。