流体输送用不锈钢焊接钢管(摘自GB/T 12771-2000)
尺寸规格
注:1.×——采用冷轧板(带)制造;○——采用热轧板(带)制造;⊙——采用冷轧板(带)或热轧板(带)制造。
2.括号内为英制单位换算的公制单位尺寸。
3.本表的单位是mm。
8
|
(9.5)
|
12
|
(12.7)
|
13
|
14
|
16
|
18
|
19
|
20
|
(21.3)
|
22
|
25
|
(25.4)
|
(26.7)
|
28
|
30
|
(31.8)
|
32
|
(33.4)
|
36
|
38
|
(38.1)
|
40
|
(42.3)
|
45
|
48
|
(48.3)
|
(50.8)
|
57
|
(60.3)
|
(63.5)
|
76
|
(88.9)
|
89
|
(101.6)
|
102
|
108
|
114
|
(114.3)
|
133
|
(139.7)
|
(141.3)
|
159
|
(168.3)
|
219
|
(219.1)
|
273
|
(323.9)
|
325
|
355.6
|
377
|
400
|
406.4
|
426
|
450
|
457.2
|
478
|
500
|
508
|
529
|
550
|
558.8
|
600
|
609.6
|
630
|
0.3
|
0.4
|
0.5
|
0.6
|
0.8
|
1
|
1.2
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1.4
|
1.5
|
1.8
|
2
|
2.2
|
2.5
|
2.8
|
3
|
3.2
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3.5
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3.6
|
4
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4.2
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4.6
|
8
|
5
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5.5
|
6
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8
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10
|
12
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14
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16
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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×
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外径允许偏差
注:本表的单位是mm。
类别
|
外径D
|
允许偏差
|
较高级(A)
|
普通级(B)
|
焊接状态
|
<20
|
±0.20
|
±0.30
|
焊接状态
|
≥20~<50
|
±0.40
|
±0.50
|
焊接状态
|
≥50
|
±0.8%D
|
±1.0%D
|
热处理状态
|
<13
|
±0.20
|
±0.25
|
热处理状态
|
≥13~<25
|
±0.30
|
±0.40
|
热处理状态
|
≥25~<40
|
±0.40
|
±0.60
|
热处理状态
|
≥40~<65
|
±0.60
|
±0.80
|
热处理状态
|
≥65~<90
|
±0.80
|
±1.00
|
热处理状态
|
≥90~<140
|
±1.00
|
±1.20
|
热处理状态
|
≥140~<300
|
±1.0%D
|
±1.5%D
|
热处理状态
|
≥300~<500
|
±0.8%D
|
±1.0%D
|
热处理状态
|
≥500
|
按协议
|
按协议
|
冷拔(轧)状态磨抛光状态
|
<25
|
±0.10
|
±0.12
|
冷拔(轧)状态磨抛光状态
|
≥25~<40
|
±0.12
|
±0.15
|
冷拔(轧)状态磨抛光状态
|
≥40~<50
|
±0.15
|
±0.18
|
冷拔(轧)状态磨抛光状态
|
≥50~<60
|
±0.18
|
±0.20
|
冷拔(轧)状态磨抛光状态
|
≥60~<70
|
±0.20
|
±0.23
|
冷拔(轧)状态磨抛光状态
|
≥70~<80
|
±0.23
|
±0.25
|
冷拔(轧)状态磨抛光状态
|
≥80~<90
|
±0.25
|
±0.30
|
冷拔(轧)状态磨抛光状态
|
≥90~<100
|
±0.30
|
±0.40
|
冷拔(轧)状态磨抛光状态
|
≥100
|
±0.4%D
|
±0.5%D
|
壁厚允许偏差
注:1.本表的单位是mm。
2.括号中逗号前后分别表示上偏差和下偏差。
钢板(带)料状态
|
壁厚S
|
壁厚允许偏差
|
热轧钢板(带)或热轧纵剪钢带
|
≤4
|
(+0.50,-0.60)
|
热轧钢板(带)或热轧纵剪钢带
|
>4
|
±10%S
|
冷轧钢板(带)或冷轧纵剪钢带
|
≤0.5
|
±0.10
|
冷轧钢板(带)或冷轧纵剪钢带
|
>0.5~1
|
±0.15
|
冷轧钢板(带)或冷轧纵剪钢带
|
>1~2
|
±0.20
|
冷轧钢板(带)或冷轧纵剪钢带
|
>2
|
±10%S
|
直线度
钢管外径/mm
|
弯曲度/(mm/m)
|
≤17
|
—
|
>17~140
|
≤2.0
|
>140
|
≤2.5
|
钢的密度
牌号
|
密度(kg/dm^3)
|
计算公式
|
1Cr18Ni9,0Cr18Ni9,00Cr19Ni10,0Cr18Ni10Ti,1Cr18Ni9Ti
|
7.93
|
W=0.02491S(D-S)
|
0Cr25Ni20,0Cr17Ni12Mo2,00Cr17Ni14Mo2,0Cr18Ni11Nb
|
7.98
|
W=0.02507S(D-S)
|
00Cr17
|
7.7
|
W=0.02419S(D-S)
|
0Cr13,00Cr18Mo2,0Cr13Al
|
7.75
|
W=0.02435S(D-S)
|
牌号和化学成分
序号
|
牌号
|
化学成分(质量分数%)
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Mo
|
其他
|
1
|
1Cr18Ni9
|
≤0.15
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
8.00~10.00
|
17.00~19.00
|
—
|
—
|
2
|
0Cr18Ni9
|
≤0.07
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
8.00~11.00
|
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
|
0Cr25Ni20
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
19.00~22.00
|
24.00~26.00
|
—
|
—
|
5
|
0Cr17Ni12Mo2
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
10.00~14.00
|
16.00~18.00
|
2.00~3.00
|
—
|
6
|
00Cr17Ni14Mo2
|
≤0.030
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
12.00~15.00
|
16.00~18.00
|
2.00~3.00
|
—
|
7
|
0Cr18Ni10Ti
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
9.00~12.00
|
17.00~19.00
|
—
|
Ti≤5×C%
|
8
|
1Cr18Ni9Ti
|
≤0.12
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
8.00~11.00
|
17.00~19.00
|
—
|
Ti5×(C%-0.02)~0.80
|
9
|
0Cr18Ni11Nb
|
≤0.08
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.030
|
9.00~13.00
|
17.00~19.00
|
—
|
Nb≥10×C%
|
10
|
00Cr17
|
≤0.030
|
≤0.75
|
≤1.00
|
≤0.035
|
≤0.030
|
—
|
16.00~19.00
|
—
|
Ti或Nb0.10~1.00
|
11
|
00Cr18Mo2
|
≤0.025
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.030
|
—
|
17.00~20.00
|
1.75~2.50
|
N≤0.025Ti、Nb、Zr或之和8×(C%+N%)~0.80
|
12
|
0Cr13
|
≤0.08
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.030
|
—
|
11.50~13.50
|
—
|
—
|
13
|
0Cr13Al
|
≤0.08
|
≤1.00
|
≤1.00
|
≤0.035
|
≤0.030
|
—
|
11.50~14.50
|
—
|
Al:0.10~0.30
|
热处理制度
序号
|
牌号
|
推荐热处理制度
|
1
|
1Cr18Ni9
|
固溶处理1010~1150℃快冷
|
2
|
0Cr18Ni9
|
固溶处理1010~1150℃快冷
|
3
|
00Cr19Ni10
|
固溶处理1010~1150℃快冷
|
4
|
0Cr25Ni20
|
固溶处理1030~1180℃快冷
|
5
|
0Cr17Ni12Mo2
|
固溶处理1010~1150℃快冷
|
6
|
00Cr17Ni14Mo2
|
固溶处理1010~1150℃快冷
|
7
|
0Cr18Ni10Ti
|
固溶处理920~1150℃快冷
|
8
|
1Cr18Ni9Ti
|
固溶处理1000~1080℃快冷
|
9
|
0Cr18Ni1Nb
|
固溶处理980~1150℃快冷
|
10
|
00Cr17
|
退火处理780~950℃快冷或缓冷
|
11
|
00Cr18Mo2
|
退火处理800~1050℃快冷
|
12
|
0Cr13
|
退火处理750℃快冷或800~900℃缓冷
|
13
|
0Cr13Al
|
退火处理780~830℃快冷或缓冷
|
力学性能
注:钢管的屈服点在需方要求,合同中注明时才给予保证。
①非热处理状态交货的钢管。
序号
|
牌号
|
屈服点σ0.2/MPa ≥
|
抗拉强度σb/MPa ≥
|
断后伸长率δ5(%)
|
1
|
1Cr18Ni9
|
210
|
520
|
35,25①
|
2
|
0Cr18Ni9
|
210
|
520
|
35,25①
|
3
|
00Cr19Ni10
|
180
|
480
|
35,25①
|
4
|
0Cr25Ni20
|
210
|
520
|
35,25①
|
5
|
0Cr17Ni12Mo2
|
210
|
520
|
35,25①
|
6
|
00Cr17Ni14Mo2
|
180
|
480
|
35,25①
|
7
|
0Cr18Ni10Ti
|
210
|
520
|
35,25①
|
8
|
1Cr18Ni9Ti
|
210
|
520
|
35,25①
|
9
|
0Cr18Ni1Nb
|
210
|
520
|
35,25①
|
10
|
00Cr17
|
180
|
360
|
20,-
|
11
|
00Cr18Mo2
|
240
|
410
|
20,-
|
12
|
0Cr13
|
210
|
410
|
20,-
|
13
|
0Cr13Al
|
177
|
410
|
20,-
|