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Description

Carbon seamless steel pipe

(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:seamless steel pipes 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%


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Cangzhou Datang Steel Pipe Co., Ltd All Right Resevered.