电 话:022-88498333、84891540
手 机:13920806700、13920039567
Q Q:490913555
联系人:红果、江金金
地 址:天津市东丽区津塘路丽兴物流园C座432
16mn化肥钢管
钢管种类
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外径(D)
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钢管壁厚(S)
|
||
冷拔管
|
钢管外径(mm)
|
允许偏差(mm)
|
钢管壁厚(mm)
|
允许偏差(mm)
|
>30-50
|
±0.3
|
≤30
|
±10%
|
|
>50-219
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±0.8%
|
|||
热轧管
|
>219
|
±1.0%
|
>20
|
±10%
|
标准
|
牌号
|
抗拉强度(MPa)
|
屈服强度(MPa)
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伸长率(%)
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冲击功(J)
|
低温冲击Akv
|
GB6479
|
10
|
335-490
|
≥205
|
≥24
|
/
|
-20℃≥18
|
20
|
410-550
|
≥245
|
≥24
|
≥39
|
-20℃≥18
|
|
16Mn
|
490-670
|
≥320
|
≥21
|
≥47
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-40℃≥21
|
|
10MoWVNb
|
470-670
|
≥295
|
≥19
|
≥62
|
|
|
15CrMo
|
440-640
|
≥235
|
≥21
|
≥47
|
|
|
1Cr5Mo
|
390-590
|
≥195
|
≥22
|
≥94
|
|
|
12 Cr2Mo
|
450-600
|
≥280
|
≥20
|
≥38
|
|
标准
|
牌号
|
化学成分(%)
|
|||||||
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni
|
||
GB6479
|
10
|
0.07-0.14
|
0.17-0.37
|
0.35-0.65
|
≤0.030
|
≤0.030
|
/
|
/
|
/
|
20
|
0.17-0.24
|
0.17-0.37
|
0.35-0.65
|
≤0.030
|
≤0.030
|
/
|
/
|
/
|
|
16Mn
|
0.12-0.20
|
0.20-0.60
|
1.20-1.60
|
≤0.030
|
≤0.030
|
|
|
|
|
10MoWVNb
|
0.07-0.13
|
0.50-0.80
|
0.50-0.80
|
≤0.030
|
≤0.030
|
/
|
0.60-0.90
|
/
|
|
15CrMo
|
0.12-0.18
|
0.17-0.37
|
0.40-0.70
|
≤0.030
|
≤0.030
|
0.80-1.10
|
0.40-0.55
|
/
|
|
1Cr5Mo
|
≤0.15
|
≤0.50
|
≤0.60
|
≤0.030
|
≤0.030
|
4.00-6.00
|
0.45-0.60
|
≤0.60
|
|
12Cr2Mo
|
0.80-0.15
|
≤0.50
|
0.40-0.70
|
≤0.030
|
≤0.030
|
2.0-2.50
|
0.90-1.20
|
|