Tianjin Factory S355jrh S355j2h LSAW Carbon Steel Pipe Longitudinal Submerged Arc Welded Steel Large Diameter Round Pipe Steel Pipe for Sale Factory Price

• Customization: Available
• After-sales Service: Support
• Warranty: One Year
• Model NO.: LSAW Steel Pipe
• Technique: SAW
• Material: Carbon Steel
• 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
• Section Shape: Round
• 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
• Od-Round: 10.3mm-609mm
• Technology: LSAW
• Delivery Time: 7-30 Days
• Materials: Q195, Q235, Q345, ASTM A53, Gr.B, API 5L
• Ends: Bared, Black Painted, Galvanized, Oiled
• Oiled or Non-Oiled: Non-Oiled
• Alloy or Not: Non-Alloy
• 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
• Trademark: Yuantai Derun
• Origin: Tianjin, China
• Production Capacity: 10million/Year

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

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 Pipes

High 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.