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Carbon Steel Seamless Pipe/Tube
(1)Standard: GB ,ISO,ASTM,ASEM, API .
(2)Material: 20#, 45#,16Mn,Q235,Q345,ASTM A335,ASTM A213,DIN 17175
(3)Diameters from 21.3mm to 812.8mm, wall thickness from 2.11mm to 59.54mm.
(4)Technique:hot rolled.
(5)Surface protect :varnish or black painting to prevent rust.
Black surface finish, galvanized. bevel end or plain.
(6)Place of origin:Tianjin,China.
(7)Application:Carbon Steel Seamless Pipe for equipment,pipelines,vessels,pipe fittings and so on.
(8)Packing:bundles,seaworthy wooden cases.container.
|
Standard |
Tolerance of outer diameter (mm) |
(mm) wall thickness (mm) |
||
|
(mm) outer diameter |
(mm) Toleranceof outer diameter |
≤130mm outer diameter≤130mm |
>130mm outer diameter>130mm |
|
|
GB/T8162-1999 |
>50 |
+1% |
S≤4 4-20 S>20 |
S±12.5% +15% -10% ±12.5% |
|
GB/T8163-1999 |
ALL |
+1%,min +0.5mm Tolences of hot-finished steel pipe |
ALL |
+15% -10% |
|
ASTM A53 |
<48.3 >60.3 |
+0.4mm -0.79mm +1% |
ALL |
±12.5% |
|
ASTM A106 |
<48.3 48.3-114.3 >114.3 |
+0.4mm -0.79mm +0.79mm +1.59mm -0.79mm |
ALL |
±12.5% |
|
GB9948-1988 |
≤159 >159 |
+1% +1.25% |
S≤20 S>20 |
±12.5% +10% |
