Api 5l Gas Spiral Saw Line Pipe

Standard: API, ASTM
Standard2:API 5CT, API 5L, ASTM A252-1998
Grade Group:API J55-API P110, Q195-Q345,
ST35-ST52, STB35-STB42
Grade:API J55, API K55, API L80, Q235,
Q345, ST35, St42-2, St45, STB35, STB42
Thickness: 3.2 - 30 mm
Section Shape: Round
Outer Diameter(Round):168.3 - 3048 mm
Place of Origin:Hebei, China
Application:petroleum and natural gas industries
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Product Details

Product Details

LSAW Pipe (Longitudinal Submerged Arc-Welding Pipe), is taking the steel plate as raw material, mold it by the molding machine, then do double-sided submerged arc welding. Through this process the LSAW steel pipe will get excellent ductility, weld toughness, uniformity, plasticity and great sealing.

Brief Introduction

Api 5l Gas Spiral Saw Line Pipe


api 5l ssaw pipe  large diameter spiral steel pipe on sale   inlet irrigation pipe line

ProcessSprial Submerged- Arc Welded steel pipe
Out Diameter:168.3mm – 3048mm
Wall Thickness:3.2mm- 30mm
Length:Up to 50m
Standard:API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS
Features:The raw material of the same width can be processed in difference molding angles to manufacture steel pipes in various diameters. The Spiral Steel Pipe shaping method ensures that the pipe will be round and straight in shape without any straightening procedure.
Steel Grade:Q235,Q345,Q195-Q345
Certificate:EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT
Application range:lextensively in the transferring system of the petroleum and natural gas industries
Surface:Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement
Technical Specifications:The rating standards for the API 5L SSAW Steel Pipe under PSL1 type and PLS 2 type. The maximum out diameter we can do is 3048mm. The maximum wall thickness is 30mm
Mill Test Certificate:EN 10204/3.1B
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.
Packing:Several Pcs Bundled with Metal Strip or Bulk Packing
Supply ability:800 Ton/Tons per Day
delivery date25 days

What is pipeline material API 5L

As early as 1926, the American petroleum institute (API) issued the standard ap-5l, which initially only included A25, A and B steel grades, and later issued several standards, as shown in table 4.Note: API issued U80 and U100 standards in 1972, and later changed to X80 and X100.Before 2000, the world used X70, about 40%, X65, X60 are in 30%, a considerable number of small diameter product pipelines use X52 steel grade, and mostly resistance welded straight pipe (ERW steel pipe).

China's metallurgical industry has made great efforts to develop pipeline steel in the past decade. Currently, it is doing its best to tackle X70 wide plate. Chemical composition and mechanical properties of X70 and X80, such as Shanghai baoshan iron and steel company and wuhan iron and steel company, are listed in table 5 ~ table 9.Table 5 wisco X80 rolled plate performance table 6 grade x70 steel pipe mechanical properties table 7 grade x70 steel pipe bending performance test results table 8 grade x70 steel tube the charpy impact toughness of table 9 charpy impact toughness of high strength pipeline are commonly used on the pipeline line tube type at present (SSAW) spiral submerged arc welding pipe, straight seam submerged arc welding pipe (LSAW), electric resistance welding (ERW).Seamless steel tube is used when the diameter is less than 152mm.

From the end of 1960s to 1970s, spiral welding pipe factory developed rapidly in China. Almost all crude oil pipelines are made of spiral welded steel pipes, and spiral welded steel pipes are also used in a class of "west-east gas transmission" pipelines.The disadvantages of spiral welded steel pipe are large internal stress, poor dimensional accuracy and high probability of defects.According to the expert analysis, should adopt the "two legs walk" policy, one is to the present spiral welding pipe factory to carry on the technical transformation positively, also has the great prospect;

The second is to vigorously develop China's direct seam submerged arc welding pipe industry.ERW steel tubes are widely used at home and abroad for their bright appearance, high dimensional accuracy and low price.

The Process Flow


The Application


The Workshop

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

 has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 


We are a direct-selling manufacturer specializing in the research and development of oil casing  steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.





Why to choose us?

1.We provide products to our customers individual specifications and special needs with competitive price and best service.

2. Immediate respond

We will be 24/7 on line at your services. Provide one-to-one service with our sincerity.

3. Professional suggestions

We could provide you the professional suggestion with our expertise acumen.

4. Short delivery period

We are based on a long-term cooperation with several major domestic steel company with an outstanding advantage is sufficient supply. Shorter the supplying period.







Edit by Ms. Vicky of  CSPG

Contact us directly by:

Email: ella@cnspipe.com  ,vicky@cnspipe.net

Tel / Whatsapp: +86-180327140146

Skype: cnspipe002

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