SSAW Steel Pipes

Your Professional SSAW Steel Pipes Supplier

Hebei Senhai Pipeline Co., Ltd. is one professional manufacturer of ERW, SAW and SMLS steel pipes, as per standards of API5L, API 5CT, ASTM, EN, BS, DIN, GOST, GB, etc. Senhai Pipeline is located in Cangzhou City, which is the famous "Hometown of Pipes and Fittings" in China, about 120km away from Tianjin Seaport and Airport, and 180km from capital Beijing. Senhai especially produces welded steel pipes of large diameter and thick wall thickness in ERW, LSAW and SSAW. Anti-corrosion layers can also be done in our factory.

Why Choose Us

Sales Market
Senhai's products are popular in many countries and districts like Southeast Asia, Mid-East, Europe, America, Australia, South America, Africa, etc. "Customer's satisfaction, highly-qualified products and outstanding services" are treasured by Senhai as the business principle.

Our Certifications
Materials include A106 Gr.B, A53 Gr.B, API 5L PSL1 PSL2 X42~X70 L245 L290 L360, Q235A, Q235B, Q235C, Q345B~F, 10#, 20#, 45# steel, A105, WPB, etc., all of which meet the standards of ASTM, API, BS, DIN, JIS, EN, GOST, GB, etc. following standards including ISO9002,ASTM A234 GR WPB ASME/ANSI B16.9,DIN2605-1/2 2615 2617, JISB2311 2312, EN10253-1/2/3, GOST 17375 17376 17378 17379 GOST 30753, etc.

Production Equipment
The major production equipment owned by Senhai cover the hot-rolling puncher, interactive double core bar cold drawing machine, automatically rotary head rolling machine, tube straightening machine, annealing furnace without water cooling system and auxiliary equipment of surface scouring and coating.

Our Factory
Occupying total area of 33,000 square meters, Senhai possesses workshops of four hot rolling production lines, two cold drawing production lines, four welded pipe production lines and office building. The major production equipment owned by Senhai cover the hot-rolling puncher, interactive double core bar cold drawing machine, automatically rotary head rolling machine, tube straightening machine, annealing furnace without water cooling system and auxiliary equipment of surface scouring and coating.

Specification

Out Diameter	Wall Thickness (mm)
mm	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25
219.1	.	.	.	.
273	.	.	.	.	.
323.9	.	.	.	.	.	.	.
325	.	.	.	.	.	.	.
355.6	.	.	.	.	.	.	.
377	.	.	.	.	.	.	.	.
406.4	.	.	.	.	.	.	.
426	.	.	.	.	.	.	.
457	.	.	.	.	.	.	.
478	.	.	.	.	.	.	.
508	.	.	.	.	.	.	.		.
529	.	.	.	.	.	.	.		.
630	.	.	.	.	.	.	.		.	.
711	.	.	.	.	.	.	.	.	.	.	.
720	.	.	.	.	.	.	.	.	.	.	.
813		.	.	.	.	.	.	.	.	.	.	.	.
820		.	.	.		.	.	.	.	.	.	.	.
920			.	.		.	.	.	.	.	.	.	.
1020			.	.	.	.	.	.	.	.	.	.	.	.	.
1220			.	.	.	.	.	.	.	.	.	.	.	.	.
1420				.	.	.	.	.	.	.		.	.	.	.
1620					.	.	.	.	.	.	.	.	.	.	.
1820						.	.	.	.	.	.	.	.	.	.
2020							.	.	.	.	.	.	.	.	.
2220								.	.	.	.	.	.	.	.
2500								.	.	.	.	.	.	.	.	.	.	.	.	.
2540									.	.	.	.	.	.	.	.	.	.	.	.
3500										.	.	.	.	.	.	.	.	.	.

Parameter

PRODUCT	SSAW STEEL PIPE, SPRIAL STEEL PIPE, SPRIAL WELDED PIPE
STANDARD	API 5L PSL1/API 5L PSL2/EN10217/EN10219/EN10208
STANDARD	/ASTM A53/ASTM A252 Grade 1/2/3, AN/NZS 1163
MATERIAL	Q235B/GR.B/X42/X56/X60/X70/X80/Grade 1/2/3, C350
OUTDIAMETER	219MM-4064MM
THICKNESS	3.2MM-40MM
SURFACE TREATME NT	VARNISH
	BARE PIPE
	BLACK PAINTING
	RED PAINTING
	3LPE
	YELLOW JACKET
	GALVANIZATION
PACKING	BREAK BULK
PACKING	BUNDLE
END TREATMENT	PLAIN END
	BEVELED END
	BSP THREAD WITH COUPLING
	NPT THREAD WITH COUPLING
	GROOVED
END PROTECTORS	PLASTIC CAPS
END PROTECTORS	STEEL PROTECTORS
MOQ	1 TON
APPLICATION	PILLING SUPPORT
	BRIDGE SUPPORT
	PUBLIC INFRASTURE SUPPORT PIPE
	DRILLING PIPE
	OIL AND GAS TRANSPORTATION
	SEWAGE TRANSMISSION
	EQUIPMENT MACHINE MADE PIPE
PRODUCTION ABILITY	600,000 TONS
BUSINESS TYPE	MANUFACTURER OF STEEL PIPE AND STEEL PIPE STOCKIEST

Standard

ASTM A53	Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
API 5L	Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.)
A252	Standard Specification for Welded and Seamless Steel Pipe Piles
A500	Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
BS EN10219-1	Cold formed welded structural hollow sections of non-alloy and fine grain steels - part1: Technical delivert conditions
BS EN10219-2	Cold formed welded structural hollow sections of non-alloy and fine grain steels - part2: tolerances dimmsions and sectional properties

Chemical Analysis and Mechanical Properties

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
Standard	Grade	C	Si	Mn	P	S	Tensile Strength(Mpa)	Yield Strength(Mpa)
API 5L PSL1	A	0.22	-	0.90	0.030	0.030	335	335
	B	0.26	-	1.20	0.030	0.030	415	415
	X42	0.26	-	1.30	0.030	0.030	415	415
	X46	0.26	-	1.40	0.030	0.030	435	435
	X52	0.26	-	1.40	0.030	0.030	460	460
	X56	0.26	-	1.40	0.030	0.030	490	490
	X60	0.26	-	1.40	0.030	0.030	520	520
	X65	0.26	-	1.45	0.030	0.030	535	535
	X70	0.26	-	1.65	0.030	0.030	570	570
API 5L PSL2	B	0.22	0.45	1.20	0.025	0.015	415	415
	X42	0.22	0.45	1.30	0.025	0.015	415	415
	X46	0.22	0.45	1.40	0.025	0.015	435	435
	X52	0.22	0.45	1.40	0.025	0.015	460	460
	X56	0.22	0.45	1.40	0.025	0.015	490	490
	X60	0.12	0.45	1.60	0.025	0.015	520	520
	X65	0.12	0.45	1.60	0.025	0.015	535	535
	X70	0.12	0.45	1.70	0.025	0.015	570	570
	X80	0.12	0.45	1.85	0.025	0.015	625	625
ASTM A53	A	0.25	0.10	0.95	0.050	0.045	330	330
ASTM A53	B	0.30	0.10	1.20	0.050	0.045	415	415
ASTM A252	1	-	-	-	0.050	-	345	345
	2	-	-	-	0.050	-	414	414
	3	-	-	-	0.050	-	455	455
EN10217-1	P195TR1	0.13	0.35	0.70	0.025	0.020	320	320
	P195TR2	0.13	0.35	0.70	0.025	0.020	320	320
	P235TR1	0.16	0.35	1.20	0.025	0.020	360	360
	P235TR2	0.16	0.35	1.20	0.025	0.020	360	360
	P265TR1	0.20	0.40	1.40	0.025	0.020	410	410
	P265TR2	0.20	0.40	1.40	0.025	0.020	410	410
EN10217-2	P195GH	0.13	0.35	0.70	0.025	0.020	320	320
	P235GH	0.16	0.35	1.20	0.025	0.020	360	360
	P265GH	0.20	0.40	1.40	0.025	0.020	410	410
EN10217-5	P235GH	0.16	0.35	1.20	0.025	0.020	360	360
EN10217-5	P265GH	0.20	0.40	1.40	0.025	0.020	410	410
EN10219-1	S235JRH	0.17	-	1.40	0.040	0.040	360	360
	S275JOH	0.20	-	1.50	0.035	0.035	410	410
	S275J2H	0.20	-	1.50	0.030	0.030	410	410
	S355JOH	0.22	0.55	1.60	0.035	0.035	470	470
	S355J2H	0.22	0.55	1.60	0.030	0.030	470	470
	S355K2H	0.22	0.55	1.60	0.030	0.030	470	470

Size

SSAW:

Outer Diamter

219.1mm - 4064mm (8" - 160")

Wall Thickness

3.2 mm - 40mm

Length

6mtr-18mtr

Benefits of SSAW Steel Pipes

The use of steel strips of the same width enables the production of steel pipes of different diameters, in particular the production of large-diameter steel pipes with narrow strip steel.

Under the same pressure conditions, the spiral welds are subjected to a smaller stress than the straight seams, which is 75% to 90% of the straight seam welded pipes, and can therefore withstand greater pressures. Compared with the straight welded pipe with the same outer diameter, under the same pressure, the wall thickness can be reduced by 10% to 25%.

Accurate size, general diameter tolerance is not more than 0.12%, deflection is less than 1/2000, ellipticity is less than 1%, and sizing and straightening processes are generally omitted.

It can be continuously produced. In theory, it can produce infinitely long steel pipes, and the loss of cutting and cutting tails is small, which can increase the metal utilization rate by 6% to 8%.

Compared with the straight seam welded pipe, its operation is flexible and the adjustment of the replacement type is convenient.

The equipment is light and the initial investment is small. It can be made into a trailer-type flow unit and the welded pipe can be produced directly at the construction site where the pipeline is laid.

It is easy to realize mechanization and automation.

Key Application Areas of a SSAW Steel Pipes

Oil and Gas transportation

SSAW steel pipes are widely used in long-distance transportation pipelines of oil and natural gas. It can withstand high pressure and high temperature environment, suitable for underground or offshore pipeline construction, to ensure the safe and efficient transportation of resources.

Water engineering

In urban water supply, irrigation and drainage systems, SSAW steel pipes have excellent corrosion resistance and pressure capacity, suitable for long-term use in underwater or humid environments.

Building structure

In buildings, SSAW steel pipes are commonly used as support and load-bearing structures, such as Bridges, towers and other large structures.
It provides good strength and stability and is able to withstand heavy loads and external pressures.

Environmental engineering

In sewage treatment plants and waste treatment facilities, SSAW steel pipes are widely used in sewage transportation and discharge. Suitable for use in corrosive environments, can effectively prevent pipeline leakage and pollution.

Mine engineering

Mostly used for mine ventilation, drainage and wastewater treatment. It can still maintain good durability and reliability in harsh environments to ensure the safety of mine operations.

Power engineering

Protective tubes for the transmission of electricity, especially in high-voltage environments. It can ensure the safety and stability of the power system.

The Main Technical Characteristics of Ssaw Steel Pipe

Uniform deformation and Minimal residual stress
During the molding process, the steel plate undergoes uniform deformation, ensuring minimal residual stress and no surface scratches. This results in SSAW steel pipes having a higher degree of flexibility in terms of diameter and wall thickness. Specifically, SSAW is particularly advantageous in the production of high-strength, thick-walled pipes, including small and medium-diameter thick-walled pipes, where it excels compared to other methods in meeting user requirements.

Advanced double-sided submerged arc welding (saw)
The use of double-sided submerged arc welding technology allows welding to be done at the optimal position, reducing common issues such as edge errors, welding deviations, and defects. This ensures higher control over welding quality, making the process more reliable.

Comprehensive quality inspection
The entire production process of SSAW steel pipes is equipped with effective detection and monitoring systems to ensure 100% quality inspection. This guarantees the consistency and reliability of the final product, ensuring that every pipe meets the required standards.

Real-time data monitoring and control
All equipment in the production line is networked with a computer data acquisition system, enabling real-time data transmission. The production parameters are centrally controlled via a central control room, allowing for precise monitoring and adjustment of key process variables to optimize pipe quality.

Strict raw material inspection
The raw materials used in SSAW pipe production, including coils, wires, and melts, undergo strict physical and chemical inspections before they are allowed into the production process. This ensures the quality and suitability of the materials for welding and further processing.

Efficient strip processing
The steel strip undergoes comprehensive preparation before forming, including leveling, trimming, planing, surface cleaning, and pre-bending. This ensures that the strip is in optimal condition for the welding and forming processes, reducing defects and improving the quality of the final product.

Effective steel strip transportation control
The pressure on both sides of the conveyor is monitored and controlled using electric contact manometers, ensuring smooth and efficient transportation of the steel strip. This control helps prevent issues during the forming stage and improves overall production efficiency.

Roller shape control
The process utilizes either external or internal roller control to shape the steel strip. This step is crucial for maintaining the correct geometry and alignment of the strip as it transitions into the pipe form.

Welding control system
A dedicated welding control device ensures that the welds meet strict quality requirements. It carefully monitors and controls the pipe diameter, alignment, and the weld seam, further enhancing the consistency and precision of the final product.

Stable welding quality with lincoln welders
To maintain stable and high-quality welding, American Lincoln welders are used for both internal and external welding. The single-wire or double-wire submerged arc welding process ensures that the pipe is welded to the highest standards, providing both strength and reliability.

Our Certificate

FAQ

Q: What is SSAW steel pipe?

A: SSAW stands for spiral submerged arc welded. It's a type of steel pipe made by welding a steel strip into a spiral shape.

Q: What are the advantages of SSAW pipes?

A: SSAW pipes can be made in large diameters, which makes them useful for transporting large quantities of oil and gas.

Q: How are SSAW pipes made?

A: SSAW pipes are made by rolling a steel strip into a tube blank, then welding the tube seam together.

Q: What are the disadvantages of SSAW pipes?

A: SSAW pipes have longer welding seams than the pipe itself, which can lead to defects like cracks and air holes.

Q: How do SSAW pipes compare to LSAW pipes?

A: SSAW pipes are welded in a spiral, while LSAW pipes are welded longitudinally. LSAW pipes are generally considered to have better quality than SSAW pipes.

Q: What are SSAW pipes used for?

A: SSAW pipes are used in low-pressure fluid transmission systems, such as pipelines for offshore platforms, petrochemical plants, and shipyards. They're also used in civil construction and pile driving.

Q: What is ssaw steel pipe?

A: Definition and Explanation of SSAW Pipes. SSAW pipes, also known as spiral submerged arc welded pipes, are manufactured using a spiral welding process. This method ensures a consistent and uniform weld, contributing to the pipe's structural integrity.

Q: What is the difference between ssaw and lsaw pipes?

A: The difference is SSAW pipes are welded in the helix or spiral position while LSAW pipes are welded in the longitudinal direction. Manufacturing process of SSAW pipe is 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.

Q: What is the code for SS steel pipe?

A: ASTM A312
The code for stainless steel seamless pipe is ASTM A312. This code is an international material standard for the manufacture of stainless steel pipe, developed by the American Society for Testing and Materials (ASTM).

Q: How to increase the stability of the ssaw steel pipe?

A: 1. The principle requirement of spiral steel pipe stacking is to stack according to varieties and specifications under the premise of stable stacking and ensuring safety. Different types of materials should be stacked separately to prevent muddling and mutual erosion;
2. It is forbidden to store items that are corrosive to steel around the spiral steel pipe stack;
3. The bottom of the spiral steel pipe stack should be high, firm and flat to prevent the material from being damp or deformed;
4. The same materials are stacked separately according to the order of storage;
5. Spiral steel pipe sections stacked in the open must have wooden mats or slabs underneath, and the stacking surface should be slightly inclined to facilitate drainage, and pay attention to the flat and straight materials to prevent bending and deformation;
6. The stacking height of spiral steel pipes should not exceed 1.2m for manual work, 1.5m for mechanical work, and 2.5m in stack width;
7. There should be a certain passage between the stack and the stack, the inspection channel is generally 0.5m, and the access channel depends on the size of the material and the transportation machinery, generally 1.5～2.0m;
Angle steel and channel steel stacked in the open air should be laid down, that is, the mouth should be facing down, the I-beam should be placed upright, and the I-slot surface of the steel should not be facing up to avoid rusting due to accumulation of water;
Elevation of the bottom of the stack. If the warehouse is a sunny cement floor, the elevation should be 0.1m; if it is a muddy floor, the elevation must be 0.2~0.5m. If it is an open field, the cement floor should be 0.3-0.5m high, and the sand-soil surface should be 0.5-0.7m high.

We're professional ssaw steel pipes manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy discount ssaw steel pipes made in China here from our factory. Spiral Welded Pipe for Casing, Spiral Welded Pipe Api 5l, ssaw steel pipes