Big Diameter 12 Meters LSAW Steel Pipe / Long Straight Welded Seam Steel Pipeline LSAW Carbon Steel Pipe

• After-sales Service: 24 Hours Service
• Warranty: 6 Months
• Type: Welded
• Technique: ERW, Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Construction & Decoration, Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Section Shape: Round
• Technology: ERW Tube
• Application: Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pip
• Special Pipe: API Pipe, EMT Pipe, Thick Wall Pipe
• Product Name: LSAW/Sawl Black Coated 3PE /3lpe/Fbe
• Transport Package: Bundle, or with All Kinds of Colors PVC or as Your
• Specification: 20mm-1219mm
• Origin: China
• HS Code: 7306309000
• Production Capacity: 100000pices/Year

Product Description

big diameter 12 meters LSAW steel pipe / Long straight welded seam steel pipeline LSAW carbon steel Pipe

Product Description

Product:	LSAW pipe,Longitudinally Submerged Arc Welding Pipe
Application:	Used for oil/gas/water Transmission,Engineering/Offshore  projects.
Size:	OD: 219mm-1625mm
	WT: 6.35 mm - 60 mm
	LENGTH: 2 m - 18 m
Pipe Standard:	API 5L  PSL1/PSL2    Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
	ASTM A53    ASTM  572    ASTM A252
	AN/NZS 1163   AN/NZS 1074
	EN10219-1        EN10217-1

 

Longitudinally Submerged Arc Welding Pipe is subdivided into UOE, RBE, JCOE steel pipe according to its different forming methods. Longitudinal high-frequency welded steel pipe has the characteristics of relatively simple process and fast continuous production, and has wide use in civil construction,petrochemical, light industry and other sectors. Mostly used to transport low pressure fluids or made into various engineering components and light industrial products.   
When compared UOE vs JCOE pipes, LSAW steel pipe manufacturers in China can produce more sizes as:

• Outside Diameter:219mm-1625mm;
• Wall Thickness: 6.35 mm - 60 mm;
• Length: 2 m - 18 m

From this, we can see that the LSAW pipe having superiority. We, Hengan Steel offers LSAW pipe with high quality, competitive prices, and best service.

Features:

• Large diameter steel pipes
• Thick walls
• High-Pressure resistance
• Low-temperature resistance can only use one HS code to declare the pipe fitting. But the straight tubes can not be used with one HS code

 

 

 

Detailed Photos

Factory & Processes

The LSAW large diameter steel pipe manufacturing process is explained in the steps below:

1. Plate Probe: This is used for manufacturing the large diameter LSAW joints right after it enters the production line which is the initial full-board ultrasonic testing.
2. Milling: The machine used for milling does this operation through two-edged milling plate to meet the requirements of the plate width and the sides parallel to the shape and degree.
3. Pre-curved side: This side is achieved by using a pre-bending machine on the pre-bending plate edge. The plate edge needs to meet curvature requirement.
4. Forming: After the pre-bending step, in the first half of the JCO molding machine, after stamped steel, it is pressed into a "J" shape while the on the other half of the same steel plate it is bent and pressed into a "C" shape, then the final opening forms an "O" shape.
5. Pre-welding: This is to make a welded pipe steel a straight seam after it has been formed and then use gas welding seam (MAG) for continuous welding.
6. Inside weld: This is done with a tandem multi-wire submerged arc welding (about four wire) on the inner part of the straight seam welded steel pipe.
7. Outside Weld: Outside weld is the tandem multi-wire submerged arc welding on the outer part of the LSAW steel pipe welding.
8. Ultrasonic Testing: Outside and inside of the straight seam welded steel pipe and both sides of the base material are welded with 100% inspection.
9. X-ray inspection: X-ray industrial TV inspection is carried out on the inside and outside using image processing system to make sure there is detection sensitivity.
10. Expansion: This is for accomplishing submerged arc welding and straight seam steel pipe length hole diameter so as to improve the steel tube's size precision and improve the distribution of stress in the steel tube.
11. Hydraulic test: This is carried out on the hydraulic test machine for steel after expanding by-root test for ensuring the steel pipe meets the standard requirements with the machine having an automatic recording and storage capabilities.
12. Chamfering: This involves the inspection carried out on the steel pipe at the end of the whole process.

 

Packaging & Shipping

Applications

Hunan Hengan Weiye Metal Products Co., LTD is subordinate to Hengan Weiye Steel Pipe Co., LTD. After more than 10 years of development, the company has become a leading enterprise in the industry, with more than ten thousand tons of stock, with processing bases in Guangzhou, Tianjin, Hubei and other provinces.

Main business: seamless steel pipe, fine drawing pipe, drill pipe special steel pipe, steel plate, galvanized products, stainless steel series, and production and processing. Under the support and care of friends and Allies from all walks of life, after years of development, the company's performance continues to expand, the annual sales has exceeded 150 million.

At present, it has become a special agent dealer of well-known domestic steel enterprises. Under the situation of fierce market competition, the company has the courage to open up and innovation. At present, the company provides steel projects all over the world.