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Fluid Pipe

Standard: ASTM A106, ASTM A53, API 5L, JIS G3452-1998, JIS G3454-1998, GB/T8163-1999, DIN 1629-1984

Application: For conveying of petroleum, gas and other fluids


Tolerance on Dimensions

Pipe types
Pipe Szie(mm)
Tolerances
Hot rolled
OD
All
±1% (min ±0.50mm)
WT
All
+15%, -12.5%
Cold drawn
OD 6~10
±0.20mm
10~30
±0.40mm
30~50
±0.45mm
>50
±1%
WT ≤1
±0.15mm
>1~3
+15% -10%
>3
+12.5% -10%


Chemical composition and mechanical properties

Standard
Grade
Chemical composition
Mechanical Properties
C
Si
Mn
P S Cr
Ni
Cu
Tensile Strength(Mpa)
Yield Strength(Mpa)
Elongation(%)
GB/T8163
10
0.07-0.14
0.17-0.37
0.35-0.65
≤0.035
≤0.035
≤0.15
≤0.25
≤0.25
335-457
≥205
≥24
20 0.17-0.24
0.17-0.37
0.35-0.65
≤0.035
≤0.035
≤0.25
≤0.25
≤0.25
410-550
≥245
≥20
Q345
0.12-0.20
0.20-0.55
1.20-1.60
≤0.045
≤0.045
- - - 490-665
≥325
≥21



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