Basic Info.
Model NO.
LSAW Steel Pipe
After-sales Service
Support
Surface Treatment
Bare Oiled Painted Galvanized
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Thickness
6-60mm or as Required
Length
6m, 12m According to Client Requirement
Od-Square
10*10mm-1000*1000mm
Od-Rectangular
10*15mm-800*1100mm
Materials
Q195, Q235, Q345, ASTM A53, Gr.B, API 5L
Ends
Bared, Black Painted, Galvanized, Oiled
Oiled or Non-Oiled
Non-Oiled
Processing Service
Welding, Punching, Cutting, Bending, Decoiling
Certification
CE, LEED, BV, Phd&EPD, Bc1, En10210, En10219
Invoicing
by Theoretical Weight
Tolerance
±5% as Required
Transport Package
Standard Seawortht Packing
Product Description
Our Adavantage:
√ Quick reply within 24 hours.
√ Large Stock for regular sizes.
√ Free sample high quality.
√ 100% after-sales quality and quantity assurance. Product Parameters
ASTM A53/API 5L/ASTM A106/BS 1387:1985/EN10255 |
Black/Galvanized Steel Tube |
Tube | Inch | O.D.(inch) | O.D.(mm) | W.T.(inch) | W.T.(mm) | Pcs/Bundles |
Light | 1/2' | 0.841 | 21.40 | 0.079 | 0.20 | 153 |
3/4' | 1.059 | 26.90 | 0.091 | 2.30 | 127 |
1' | 1.328 | 33.80 | 0.102 | 2.60 | 91 |
11/4' | 1.670 | 42.50 | 0.102 | 2.60 | 61 |
11/2' | 1.903 | 48.40 | 0.114 | 2.90 | 61 |
2' | 2.370 | 60.20 | 0.114 | 2.90 | 37 |
21/2' | 2.991 | 76.60 | 0.126 | 3.20 | 37 |
3' | 3.491 | 88.70 | 0.126 | 3.20 | 19 |
4' | 4.481 | 113.90 | 0.142 | 3.60 | 19 |
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Medium | 1/2' | 0.856 | 21.70 | 0.102 | 2.60 | 127 |
3/4' | 1.072 | 27.20 | 0.102 | 2.60 | 101 |
1' | 1.348 | 34.20 | 0.126 | 3.20 | 61 |
11/4' | 1.687 | 42.90 | 0.126 | 3.20 | 51 |
11/2' | 1.919 | 48.80 | 0.126 | 3.60 | 44 |
2' | 2.394 | 60.80 | 0.142 | 3.60 | 29 |
21/2' | 3.014 | 76.60 | 0.142 | 4.00 | 24 |
3' | 3.524 | 89.50 | 0.157 | 4.50 | 19 |
4' | 4.524 | 114.90 | 0.177 | 4.50 | 14 |
5' | 5.535 | 140.6 | 0.197 | 5.00 | 10 |
6' | 6.539 | 116.1 | 0.197 | 5.00 | 7 |
Heavy | 1/2' | 0.856 | 21.70 | 0.126 | 3.20 | 127 |
3/4' | 1.072 | 27.20 | 0.126 | 3.20 | 101 |
1' | 1.346 | 34.20 | 0.157 | 4.00 | 61 |
11/4' | 1.687 | 42.90 | 0.157 | 4.00 | 51 |
11/2' | 1.919 | 48.80 | 0.157 | 4.00 | 44 |
2' | 2.394 | 60.80 | 0.177 | 4.50 | 29 |
21/2' | 3.014 | 76.60 | 0.177 | 4.50 | 24 |
3' | 3.524 | 89.50 | 0.197 | 5.00 | 19 |
4' | 4.524 | 114.90 | 0.212 | 5.40 | 14 |
5' | 5.535 | 140.6 | 0.212 | 5.40 | 10 |
6' | 6.539 | 166.1 | 0.212 | 5.40 | 7 |
ASTM A 795 BLACK AND GALVANIZED WELDED AND SEAMLESS STEEL PIPE FOR FIRE PROTECTION USE |
Availiable Size For Sch10 Pipe(Light-Weight Pipe) |
Size | Thickness | Mass | Test Pressure |
NPS | DN | OD(mm) | T.K(mm) | Kg/m | Mpa |
3/4 | 20 | 26.7 | 2.11 | 1.28 | 4.8 |
1 | 25 | 33.4 | 2.77 | 2.09 | 4.8 |
1-1/4 | 32 | 42.2 | 2.77 | 2.69 | 6.9 |
1-1/2 | 40 | 48.3 | 2.77 | 3.11 | 6.9 |
2 | 50 | 60.3 | 2.77 | 3.93 | 6.9 |
2-1/2 | 65 | 73.0 | 3.05 | 5.26 | 6.9 |
3 | 80 | 88.9 | 3.05 | 6.46 | 6.9 |
4 | 100 | 114.3 | 3.05 | 8.37 | 8.3 |
5 | 125 | 141.3 | 3.40 | 11.56 | 8.3 |
6 | 150 | 168.3 | 3.40 | 13.83 | 6.9 |
8 | 200 | 219.1 | 4.78 | 25.26 | 5.5 |
10 | 250 | 273.1 | 4.78 | 31.63 | 4.8 |
Availiable Size For Sch40 Pipe(Standard-Weight Pipe) |
Size | Thickness | Mass | Test Pressure |
NPS | DN | OD(mm) | T.K(mm) | Kg/m | MPa |
1/2 | 15 | 21.3 | 2.77 | 1.27 | 4.8 |
3/4 | 20 | 26.7 | 2.87 | 1.69 | 4.8 |
1 | 25 | 33.4 | 3.38 | 2.50 | 4.8 |
1-1/4 | 32 | 42.2 | 3.56 | 3.39 | 6.9 |
1-1/2 | 40 | 48.3 | 3.68 | 4.05 | 6.9 |
2 | 50 | 60.3 | 3.91 | 5.44 | 6.9 |
2-1/2 | 65 | 73.0 | 5.16 | 8.63 | 6.9 |
3 | 80 | 88.9 | 5.49 | 11.29 | 6.9 |
Brief Description and Comparisons of LSAW, SSAW, and ERW PipesHigh quality steel pipes are produced from three (3) manufacturing processes: Seamless, LSAW (longitudinal-seam submerged arc welding), and ERW (electric resistance welding). LSAW and ERW pipes are highly regarded for their numerous fields of application. They are tremendously used in foundation solutions and systems, marine construction, structural construction, and diverse applications in water projects, petrochemical, chemical, and power industry, agricultural irrigation, urban construction, and more.
LSAW Pipes has two types: Longitudinal (Single or Double Straight-seam Weld, DSAW) and Spiral (also called SSAW, HSAW, or SAWL). What makes DSAW pipes differ from other LSAW pipes is that DSAW have a seam weld in the inside and outside of the pipe, while the latter have a single seam weld on the outer surface, longitudinal or cross sectional.
SSAW and LSAW pipes employ a common manufacturing procedure called "JCOE and UOE forming process". The difference is SSAW pipes are welded in the helix or spiral position while LSAW pipes are welded in the longitudinal direction.
SSAW pipe takes form by rolling and welding a steel strip in a way that the pivotal direction is oblique to the axis or pipe center, making the weld seam in a spiral line. LSAW pipes are produced by molding steel sheets to a cylinder and joining the ends together by welding in a straight line.
LSAW Pipes
LSAW Pipe Forming
The LSAW pipe diameter range is normally from 16 inch to 60 inch (406mm to 1500mm). They have good performances on high pressure resistance, and low-temperature corrosion resistance.
ESC Steel however can supply pipes between 1 inch to 167 inch (21mm up to 4267mm) in diameter and thicknesses between 3/32 inch to 4 inch (2.1mm up to 100mm). Largest diameters and thickness of ESC Steel Pipes are manufactured using LSAW which are highly recommended for load bearing piles, combination wall piles and other applications. In the oil and gas industry, large-diameter API 5L LSAW pipes are use d to transport hydrocarbons over long distances efficiently.
HSAW (helical submerged arc welding) or SSAW pipe diameter range is generally 20 inch to 100 inch (406mm to 2540mm). One advantage of SSAW is the possibility to obtain different diameter
ERW Pipe
ERW Pipe Forming
of SSAW pipes from a standard size of steel strip without cutting. On the other hand, spiral welding seam length is quite longer than the pipe length, making it more costly and prone to cracks, air holes, cinder inclusion, partial welding, and more.
HSAW or spiral weld pipes are used for non-critical applications such as water distribution and not for oil & gas. ESC recommends SSAW pipes as King Piles for our Combination Walls and also as Dredging Pipe.
Overall, it appears that LSAW Pipes has slight edge over SSAW Pipes. Below points explains it why.
SSAW Pipes has greater residual stress than LSAW pipes. LSAW pipes passes through uniform expansion process.
SSAW pipes weld stress concentration phenomenon is considered serious by category. The heat affected zone of SSAW pipes is larger than LSAW pipes. Heat affected zones are considered weak points where failure might start.
Geometry accuracy of LSAW pipes is better than SSAW pipes, a key in the ease of installation.
The welding line of LSAW pipe is around 60% lesser than of SSAW pipes.
Using steel plates, quality of LSAW pipe can be tested by non-destructive procedures. While SSAW pipes using hot-rolled coils should be tested with destructive methods such as x-ray.
LSAW pipes adopt welding after molding process where various checks can take place. SSAW pipes employ molding and welding at the same time, pre-checks are not being carried out. Product Details
We can do | 1. All the pipes are high-frequency welded. |
2. Both inner and outer welded stabs can be removed. |
3. Special design available according to requirements. |
4. Pipe can be necked down and punched holes. |
5. Supplying BV or SGS Inspection if the client needs it. |
Process Flow
Product Display
Company Profile
Development Events
Certifications
FAQ
Q1: How can I get a quotation from you ?
A1:You can leave us message, and we will reply every message in time. Or we may talk on line by We Chat / Whats app/Email.
Q2:Can I get samples before order ?
A2:Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings. But the customer will pay the freight.
Q3:What product information must I provide before making a purchase ?
A3:Please provide the grade,width,thickness,and surface treatment requirement,as well as the quantities you require.
Q4:What about product pricing information?
A4:Prices vary due to changes in raw materials on a regular basis.
Q5:Can I have a visit to your factory?
A5: Of course.Our factory located at No.1,Hengtong Road,Daqiuzhuang Industrial Zone,Tianjin,China.Customers that from all over the world are welcomed to our factory.
Q6:How long is your lead time?
A6:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15-30 days, depending on the quantity.
Q7:What are your payment terms?
A7:Payment<=1000USD, 100% in advance. Payment>=1000USD 30% T/T in advance ,balance before shippment.If you have another question, please feel free to contact us as below.
Address:
No. 1 Hengtai Road, Daqiuzhuang Town, Jinghai District, Tianjin, China
Business Type:
Manufacturer/Factory
Business Range:
Construction & Decoration, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, OHSAS/ OHSMS 18001
Company Introduction:
Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. Includes 10 subsidiaries. It deserves a large united enterprise group with a registered fund of USD 65 million and fixed assets of USD 3.5 billion. Yuantai Derun is a professional manufacturer of hollow sections, ERW pipe, galvanized pipe and spiral pipe in China and is one of "The top 500 manufacturing enterprises" in China, annual output reaches 10 million tons.
Yuantai Derun has 7 production plants including 59 production lines of black ERW pipe, 10 production lines of galvanized pipe, 3 production lines of spiral welding pipe, 1 production lines of JCOE LSAW pipe. Total plants area covers 900 acres. Square pipe from 10*10*0.5mm~1000*1000*60mm, rectangular pipe from 10*15*0.5mm~1000*1100*60mm, Circular pipe from 3/4"X0.5mm~80"X40mm, LSAW steel pipe from Ø 355.6~Ø 2032mm, spiral pipe from Ø 219~Ø 2032mm, can be manufactured. Yuantai Derun can manufacture square rectangular pipe as per standards of ASTM A500/501, JIS G3466, EN10219, EN10210, AS1163.
Yuantai Derun has the biggest square rectangular pipe stock in China which can meet customer′s direct procurement requirement. Years of technology accumulation makes Yuantai Derun possessing a wealth of production experience which can greatly shorten the development and production cycle of non-standard steel pipe and speed up the delivery time of customized products. At the same time Yuantai Derun also pays attention to advanced technology research and production use of advanced equipment, the production lines of 500*500mm, 300*300mm and 200*200mm are the most advanced equipment in China which can realize the electronic-controlling automation from the forming to the finishing.
Advanced production equipment, superb technical force, excellent managing talents and solid financial strength guarantee the excellent pipe manufacturing. The products are widely used in many fields, including steel structure of building, automobile manufacture, shipbuilding, machinery manufacturing, bridge construction, container keel construction, stadiums construction, and large airport constructions. The products were used in China famous projects such as the National Stadium (The Bird′s Nest), the National Grand Theater and the HongKong-Zhuhai-Macao Bridge. Yuantai products are widely exported to Middle East, Southeast Asia, European Union, Africa, Latin America, USA etc.
Yuantai Derun had obtained the certificates of ISO9001-2008 International Quality Management System and EU CE10219 system. Now Yuantai Derun is striving to apply for "National Well-known Trademark"