Galvanized Seamless Steel Pipe

Galvanized seamless steel pipe Seamless steel pipe has a hollow section and is widely used as a pipeline for conveying fluids, such as oil, natural gas, gas, water and some solid materials.Compared with solid steel such as round steel, the steel tube has the same flexural and torsional strength and lighter weight, so it is an economical section steel.

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Product Details


Galvanized seamless steel pipe

e

OD

1/8” -24” (10.3mm-609.6mm)

Wall Thickness

0.2mm-60mm
SCH20,SCH40,STD,XS,SCH80,SCH160,XXS

Length

Less than 12m or as your requirements.

Steel material

Q195 → SS330,ST37,ST42
Q235 → SS400,S235JR
Q345 → S355JR,SS500,ST52

Standard

ASTM A53, BS1387-1985

 

outer diameter(mm)

SCH40(mm)

SCH80(mm)

SCH160(mm)

21.3

2.77

3.73

4.78

26.7

2.87

3.91

5.56

33.4

3.38

4.55

6.35

42.2

3.56

4.85

6.35

48.3

3.68

5.08

7.14

60.3

3.91

5.54

8.74

73.0

5.16

7.01

9.53

88.9

5.49

7.62

11.13

 

(I) quality requirements

(1) the chemical composition of steel: steel chemical composition is one of the most important factors affecting the performance of seamless steel pipe, is also the development of rolling pipe process parameters and steel pipe heat treatment process parameters of the main basis.

A. Alloying elements: intended for use

B. Residual elements: steel-making and proper control

C. Harmful elements: strictly control (As, Sn, Sb, Bi, Pb), gas (N, H, O)

Outside furnace refining or electroslag remelting: improve the uniformity of chemical composition and purity of steel, reduce non-metallic inclusion in pipe billet and improve its distribution.

(2) geometric size accuracy and shape of steel pipe

A. Outer diameter accuracy of steel tube: depends on the method of fixing (reducing) diameter, equipment operation, process system, etc.




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