ASTM A36 1000mm LSAW SSAW Steel Pipe Large Diameter API5l 5CT Oil and Gas for Sch 40 Carbon Steel Spiral Welded Steel Pipe

• Customization: Available
• After-sales Service: 24 Hours Service
• Warranty: 1 Year
• Model NO.: Spiral Welded Steel Pipe
• Type: Welded
• Technique: Hot Rolled/Cold Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Product Name: Spiral Welded Steel Pipe
• O.D: 22 - 630 mm
• Thickness: 6-30mm
• Length: 6-12m
• Tolerance: ±1%
• Use: Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pip
• Payment Term: T/T(30% Deposit+70% ), L/C at Sight
• Processing Service: Welding, Punching, Cutting, Bending, Decoiling
• Certificate: API, Bis, JIS, ISO9001
• Special Pipe: API Pipe, EMT Pipe, Thick Wall Pipe
• Steel Grade: Q195-Q235/St 37/52
• Transport Package: Standard Seaworthy Packing
• Specification: 20mm-1219mm
• Origin: China
• HS Code: 7306309000
• Production Capacity: 100000pices/Year

Product Description

ASTM A36 1000mm LSAW SSAW Steel Pipe Large Diameter API5l 5CT Oil and Gas for Sch 40 Carbon Steel Spiral Welded Steel Pipe

Product Description

Spiral Steel Pipe

It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the tube seam together. It can be made with a narrower Strip steel produces large diameter steel pipes. Its specifications are expressed by outer diameter * wall thickness, and the welded pipe shall be ensured that the hydraulic test, the tensile strength of the weld and the cold bending performance must meet the requirements.

Production	Spiral Welded Steel Pipe
Brand	Longford
Standard	API 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1,GB/T9711.2, A, B, X42-X80, L175-L555,L245NB, etc.
Material	1.0033,08F,A53,A106,Q235,Q345b,
Out Diameter	159mm-3200mm
Wall Thickness	3mm-30mm
Length	5.8m-11.8m,or as customer's requirements.
Place of Origin	Tianjin, China
Main Market	Middle East,Africa,South-east Asia,USA,Canada,South America
Technique	SAW, ERW welyading etc.
Usage	1. Piling project  2. Heat-supply project  3. Conveying drinking water,drainage,coal gas,fuel gas,mine slurry and other low & middle pressure fluids  4. API5L Petroleum and natural gas pipeline  5. Chemistry industry 6.Electric power engineering circulating pipe
Package	1.Bundle packing or in bulk 2. Bevelled or plain ends as per buyer's request 3. Marks: as per customer's request 4. Surface treatment: with or without varnish/2PP/2PE/3PE/3PP/FBE coating 5. Metal or plastic protecting caps at pipe ends
Delivery Time	about 20days after receipt of irrevocable L/C at sight or 30% deposit T/T
Other products	1.Spiral welded steel pipe 2.LSAW steel pipe 3.ERW steel pipe 4. Casing pipe
External Coating	FBE, 2PE, 3PE,3PP etc.
Pipe end	Plain end, beveled end, PVC covered and both ends capped ,threaded and coupled

 

 

Advantages of spiral welded pipe:

(1) Steel pipes of different diameters can be produced using strip steel of the same width, and
steel pipes of large diameter can be produced from narrow strip steel.

(2) Under the same pressure conditions, the stress of the
spiral welded seam is smaller than that of the straight seam, which is 75% to 90% of that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the straight seam welded pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.

(3) The size is accurate, the general diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.
(4) Continuous production is possible. In theory, long steel pipes can be produced, with small head and tail loss, and can
increase the metal utilization rate by 6% to 8%.

(5) The equipment is light in weight and low initial investment. It can be made into a trailer-type mobile unit to directly produce welded pipes at the construction site where the pipeline is laid.

Detailed Photos

 

Factory & Processes

(1) Raw materials, i.e. strip steel coil, welding wire and flux. Before being put into operation, it must undergo strict physical and chemical inspection.
(2) The butt joint of strip steel head and tail adopts single wire or double wire submerged arc welding, and automatic submerged arc welding is adopted for repair welding after rolling into steel pipe.
(3) Before forming, the strip steel is leveled, trimmed, planed, cleaned, transported and pre bent.
(4) The pressure gauge on both sides of the strip conveyor is used to control the pressure of the oil cylinder stably.
(5) Adopt external control or internal control roll forming.
(6) The weld gap control device is used to ensure that the weld gap meets the welding requirements, and the pipe diameter, misalignment and weld gap are strictly controlled.
(7) Both internal welding and external welding adopt American Lincoln Electric welding machine for single wire or double wire submerged arc welding, so as to obtain stable welding specifications.
(8) All welded welds are inspected by online continuous ultrasonic automatic flaw detector, ensuring 100% coverage of nondestructive testing of spiral welds. If there are defects, it will automatically alarm and spray marks, and the production workers will adjust the process parameters at any time to eliminate the defects in time.
(9) The steel pipe is cut into single pieces by air plasma cutting machine.

 

 

 

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.

Our Advantages

 

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