1.Specification
Pipe O.D: Ф406.4～Ф1422.4mm（16-56in）
Pipe Length: Max.12.2m(40ft)
Wall Thickness: When the steel grade is X70, the wall thickness ranges from 6.4 to
26.4mm(0.252--1.04in);When the steel grade is lower, the wall thickness will be increased
accordingly
Product Standard: ISO3183-3; API Spec 5L, GB9711
Capacity: The annual output is 0.2million tons
2.Application
The LSAW steel pipes are mainly used as long distance transportation pipeline for oil, gas, liquid
coal etc. on land and offshore. And also can be applied as construction pipes on offshore platform,
power station, petrochemistry and city construction etc.

3.Major characteristics
① The LSAW steel pipe internal stress is very small and uniformly distributed after the full- length
expansion. The corrosion and cracking of the pipe owing to stress can be effectively prevented.
The application of welding on site is very easy because of the high dimension precision;
② The inside and outside welding are performed after the tack welding , so the welding process is
very stable with good weld quality;
③ The NDT is easy to perform on the weld during production and field operation as well;
④ The length of the weld is shorter than that of the non-longitudinal seam pipe, so the probability
of defects occurrence is very low;
⑤ The coverage of the pipe specification is very wide. The pipe can be either in very large
diameter with thick wall or in very small diameter with thick wall.

LSAW STEEL PIPES

Usage: Used for low pressure liquid delivery, such as water, gas, and oil.

Process:
LSAW (Longitudinal Submerge-arc Welded) UO(UOE)、RB(RBE)、JCO(JCOE)
DSAW (Double Submerged arc welded)

Quality Standard:
LSAW, DSAW:
GB/T3091 Welded steel pipe for low pressure liquid delivery
GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines
IS: 3589 Steel tubes for water and sewage
IS : 1978-1982:Steel tubes for use in transportation of oil; gas & Petroleum products?
BS: 1387 Steel Tubes for use for Water, Gas, Air and Steam
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
DIN 2458 WELDED STEEL PIPES AND TUBES
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
API 5L Line Pipe
SAW SSAW:
SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service
SY/T 5040 Spiral submerged arc-welded steel pipe piles
CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply
IS : 1978 Steel tubes for use in transportation of oil; gas & Petroleum products?
ASTM A252 WELDED AND SEAMLESS STEEL PIPE PILES
Coating Standard:
ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water
ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems
DIN 30670 Polyethylen coatings of steel pipes and fittings

Steel Grade:
BS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52
ASTM A 53: Gr. A, Gr B, Gr C, Gr.D
API 5L: A, B, X42, X46, X52, X56, X60, X65 X70
GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555
GB/T3091, SY/T5037, SY/T 5040,CJ/T 3022:Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8

Size:
LSAW, DSAW:
Outer Diameter: 219mm-1820mm
Wall Thickness: 5.0mm-50mm
Length: 6mtr-18mtr

End:square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,

Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy,? Fusion Bond Epoxy, 3-layers PE)

Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.

Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
Mill Test Certificate:EN 10204/3.1B
Third party inspection:SGS, BV, Lloyds etc. 

Serena Shen

Project Director | Industrial Pipe Division
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Hunan Shinestar Steel Group (HSSG)
Hunan Great Steel Pipe Co., Ltd
Office Tel: (86) 731 88678548 | FAX: (86) 731 88678508 | Mobile Phone: (86) 13637481497
E-mail: operate@steelgaslines.com| MSN ID: greatsteelpipe@hotmail.com | Skype ID: serenashen22
Hunan Steel Industrial Zone, Tianxin Special District,Changsha City,China
www.steelgaslines.com