收藏词条 编辑词条 流体输送用不锈钢焊接钢管(GB/T12771-1991)
(1)尺寸规格见表6-110
表6-11O流体输送用不锈钢焊接钢管的尺寸规格
外径壁厚 |
0.3 |
0.4 |
O.5 |
O.6 |
O.8 |
1 |
1.2 |
1.4 |
1.5 |
1.8 |
2.O |
2.2 |
2.5 |
2.8 |
3 |
3.2 |
3.5 |
3.6 |
4.O |
4.2 |
4.6 |
4.8 |
5 |
5.5 |
6.O |
8.O |
10 |
12 |
14 |
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6 |
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× |
× |
× |
× |
× |
× |
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7 |
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× |
× |
× |
× |
× |
× |
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8 |
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× |
× |
× |
× |
× |
× |
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9 |
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× |
× |
× |
× |
× |
× |
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1O |
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× |
× |
× |
× |
× |
× |
× |
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11 |
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× |
× |
× |
× |
× |
× |
× |
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12 |
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× |
× |
× |
× |
× |
× |
× |
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-12.7 |
× |
× |
× |
× |
× |
× |
× |
× |
× |
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13 |
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× |
× |
× |
× |
× |
× |
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14 |
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× |
× |
× |
× |
× |
× |
× |
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15 |
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× |
× |
× |
× |
× |
× |
× |
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16 |
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× |
× |
× |
× |
× |
× |
× |
♁ |
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17 |
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× |
× |
× |
× |
× |
× |
× |
♁ |
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18 |
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× |
× |
× |
× |
× |
× |
× |
♁ |
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19 |
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× |
× |
× |
× |
× |
× |
× |
♁ |
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20 |
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× |
× |
× |
× |
× |
× |
× |
♁ |
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21 |
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× |
× |
× |
× |
× |
× |
♁ |
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22 |
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× |
× |
× |
× |
× |
× |
♁ |
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24 |
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× |
× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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25 |
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× |
× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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-25.4 |
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× |
× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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26 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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28 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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30 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
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-31.8 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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32 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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36 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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-38.1 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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40 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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45 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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50 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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-50.8 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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56 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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-57.1 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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-60.3 |
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× |
× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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63 |
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× |
× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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71 |
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× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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-76.2 |
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× |
× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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80 |
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× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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90 |
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× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
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100 |
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× |
× |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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110 |
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× |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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125 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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-140 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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160 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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180 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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200 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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220 |
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♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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250 |
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♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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280 |
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♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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320 |
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♁ |
♁ |
♁ |
♁ |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
Ο |
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360 |
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Ο |
Ο |
Ο |
Ο |
Ο |
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400 |
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Ο |
Ο |
Ο |
Ο |
Ο |
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450 |
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Ο |
Ο |
Ο |
Ο |
Ο |
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500 |
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Ο |
Ο |
Ο |
Ο |
Ο |
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560 |
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Ο |
Ο |
Ο |
Ο |
Ο |
注:1.( )--不推荐使用;×--采用冷轧板(带)制造;Ο--采用热轧板(带)制造;♁--采用冷轧板(带)或热轧板(带)制造。
2.钢管通常长度为2
(2)允许偏差见表6-111。
表6-111流体输送用不锈钢焊接钢管的尺寸偏差 (mm)
外 径 允 许 偏 差 |
类 别 |
外 径 |
允许偏差 |
|||
普通级 |
较高级 |
|||||
焊接状态 |
<20 |
±O.30 |
±O.20 |
|||
≥20~<50 |
士O.50 |
±O.40 |
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≥50 |
±1% |
士O.8% |
||||
热处理状态 |
<13 |
±O.25 |
±0.20 |
|||
≥13~<25 |
±O.40 |
±0.30 |
||||
≥25~<40 |
±0.60 |
±O.40 |
||||
≥40~<65 |
±0.80 |
±0.60 |
||||
≥65~<90 |
±1.00 |
±O.80 |
||||
≥90~<140 |
±1.20 |
±1.00 |
||||
≥140 |
按协议 |
按协议 |
||||
冷拔(轧)状态磨抛光状态 |
<25 |
±O.12 |
±O.10 |
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≥25~<40 |
±O.15 |
±O.12 |
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≥40~<50 |
±O.18 |
±0.15 |
||||
≥50~<60 |
±0.20 |
±O.18 |
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≥60~<70 |
±O.23 |
±O.20 |
||||
≥70~<80 |
±O.25 |
±O.23 |
||||
≥80~<90 |
±O.30 |
±O.25 |
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≥90~<100 |
±O.40 |
±O.30 |
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≥100 |
±0.50% |
±O.40% |
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壁厚允许偏差 |
钢板(带)料状态 |
壁厚 |
壁厚允许偏差 |
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热轧钢板(带)或热轧纵剪钢带 |
<4 |
+0.5 -0.6 |
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≥4 |
+12.5~-15% |
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冷轧钢板(带)或冷轧纵剪钢带 |
≤O.5 |
±0.10 |
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>O.5~1 |
±O.15 |
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>1~2 |
±0.20 |
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>2 |
±10% |
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(3)牌号和化学成分见表6-112。
表6-112流体输送用不锈钢焊接钢管的牌号和化学成分
牌 号 |
化学成分(质量分数)(%) |
|||||||
C |
Si |
№ |
P |
S |
Ni |
Cr |
其 他 |
|
1Cr18Ni9 |
≤O.15 |
≤1.oo |
≤2.00 |
≤O.035 |
≤O.030 |
8.00~10.00 |
17.00~19.00 |
|
OCr19Ni9 |
≤O.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.030 |
8.00~10.50 |
18.00~20.00 |
|
OCr19Ni11 |
≤O.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤O.030 |
9.00~13.00 |
18.00~20.00 |
|
OCr25Ni20 |
≤O.08 |
≤1.50 |
≤2.00 |
≤O.035 |
≤0.030 |
19.00~22.00 |
24.00~26.00 |
|
OCr17Ni |
≤O.08 |
≤1.00 |
≤2.00 |
≤O.035 |
≤O.030 |
10.00~14.00 |
16.00~18.00 |
M0:2.00~3.00 |
00Cr17Ni |
≤O.030 |
≤1.00 |
≤2.00 |
≤0.035 |
≤O.030 |
12.00~15.00 |
16.00~18.00 |
Mo:2.00~3.00 |
OCr18Ni11Ti |
≤0.08 |
≤1.00 |
≤2.00 |
≤O.035 |
≤O.030 |
9.00~13.00 |
17.00~19.00 |
Ti:≥5×C% |
(1Cr18Ni9Ti) |
≤0.12 |
≤1.oo |
≤2.00 |
≤O.035 |
≤O.030 |
8.00~11.00 |
17.00~19.00 |
Ti:5(C%-0.02)~O.80 |
0Cr18Ni11NB |
≤0.08 |
≤0.10 |
≤2.oo |
≤0.035 |
≤O.030 |
9.00~13.00 |
17.00~19.00 |
Nb:≥10×C% |
00Cr17 |
≤O.030 |
≤0.75 |
≤1.oo |
≤O.035 |
≤O.030 |
|
16.00~19.00 |
Ti或Nb:O.1~1.00 |
00Cr |
≤0.025 |
≤1.00 |
≤1.00 |
≤O.035 |
≤0.030 |
|
17.00~20.00 |
Mo: N:1.75~2.50≤O.025 |
0Cr13 |
≤O.08 |
≤1.00 |
≤1.00 |
≤0.035 |
≤0.030 |
|
11.50~13.50 |
|
(4)力学性能见表6-113、表6-114。
表6-113流体输送用不锈钢焊接钢管的热处理制度
牌 号 |
推荐热处理制度 |
|
1Cr18Ni9 |
固溶处理 |
1010~ |
OCr19Ni9 |
1010~ |
|
00Cr19Ni11 |
1010~ |
|
0Cr25Ni20 |
1030~ 1010~ |
|
0Cr17Ni12MO2 |
||
00Cr17Ni14Mo2 |
1010~ |
|
OCr18Ni11Ti |
920~ |
|
(1Cr18Ni19Ti) |
1000~1080快冷 |
|
OCr18Ni11Nb |
980~ |
|
00Cr17 |
退火处理 |
780~ 800~ |
ooCr18Mo2 |
||
OCr13 |
|
表6-114流体输送用不锈钢焊接钢管的力学性能
牌 号 |
屈服强度ó0.2/MPa |
抗拉强度ób/MPa |
伸长率δ 5(%) |
|
≥ |
||||
1Cr18Ni9 |
21O |
520 |
35 |
25① |
OCr19Ni9 |
210 |
520 |
||
00Cr19Ni11 |
180 |
480 |
||
0Cr25Ni20 |
210 |
520 |
||
0Cr17Ni |
21O |
520 |
||
00Cr17Ni |
180 |
480 |
||
OCr18Ni11Ti |
210 |
520 |
||
1Cr18Ni9Ti |
21O |
520 |
||
OCr18Ni11Nb |
210 |
520 |
||
00Cr17 |
180 |
360 |
20 |
|
00Cr |
240 |
41O |
||
0Cr13 |
210 |
410 |
注:钢管逐根进行水压试验,压力为2.45MPa;也可进行气压试验,压力为0.59MPa,管壁不得出现渗漏现象。
①非热处理状态交货的钢管
(5)用途用于腐蚀性流体的输送和在腐蚀性气氛下工作的中、低压流体管道。