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Q355 Spiral Steel Pipe

Q355 Spiral steel pipe is made of strip steel coil as raw material, regular temperature extrusion molding, automatic double wire double-sided submerged arc welding process welded spiral seam steel pipe. Spiral steel pipe will be fed into the welded pipe unit, through the multi-channel roll rolling, the strip steel is gradually rolled up to form a round billet with an open gap, adjust the amount of extrusion rollers under pressure, so that the weld gap is controlled at 1~3mm, and make the weld ends flush.


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Spiral steel pipe is made of strip steel coil as raw material, regular temperature extrusion molding, automatic double wire double-sided submerged arc welding process welded spiral seam steel pipe. Spiral steel pipe will be fed into the welded pipe unit, through the multi-channel roll rolling, the strip steel is gradually rolled up to form a round billet with an open gap, adjust the amount of extrusion rollers under pressure, so that the weld gap is controlled at 1~3mm, and make the weld ends flush.

Spiral steel pipe is characterized by high strength, high rigidity, light weight, easy to install and so on. It is widely used in the transmission of fluids such as oil, natural gas, water, gas, steam, etc. as well as in the fields of electric power, construction, transportation and so on. In addition, spiral steel pipe can also be used for pipelines conveying common solid materials, such as coal, ore and so on.

Spiral steel pipe is available in various specifications and can be produced in diameters of 219~4020mm and wall thicknesses of 4~25mm. Meanwhile, the production standards of spiral steel pipe include GB/T9711, GB/T3091, etc., in which GB/T9711 standard is mainly used in oil and gas pipeline and more strict municipal projects, such as water supply pipeline, heat pipeline, etc.; while SY/T5037 standard is mainly used in water supply and drainage pipeline, sewage pipeline, piling works, structural pillars and other projects.

 

parameter table

 

Outer Diameter 219mm-2032mm
Wall Thickness 1.24mm-63.5mm
Standard ASTM A53, BS1387-1985, API 5L standard
Material Q195, Q235, Q355, ASTM A53 Gr.B, API 5L Gr.B
Ends 1) Bared
2) Black Painted (varnish coating)
3) galvanized
4) Oiled
5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating.
Technique Electronic Resistance Welded (ERW )
Double Submerged Arc Welded (DSAW)
Electronic Fusion Welded (EFW)
Section Shape Round, Square, Rectangular.
Delivery Container, Bulk Vessel.
About Our Quality 1) No damage, no bent
2) no burrs or sharp edges and no scraps
3) Free for oiled&marking
4) All goods can be checked by third party inspection before shipment
others 3) SCH20,SCH40,STD,XS,SCH80,SCH160,XXS

Application:

It is a long piece of steel with a hollow cross-section and no seams around it. Steel pipe has a hollow cross-section and is used in large quantities as a pipeline for the transportation of fluids such as oil, natural gas, coal gas, water and certain solid materials. Compared with solid steel such as round steel, steel pipe is lighter in weight when the bending and torsion strength is the same, and it is a kind of economic cross-section steel, which is widely used in the manufacture of structural and mechanical parts, such as oil drilling rods, automobile driveshafts, bicycle frames, and steel scaffolding used in building construction. Steel pipe manufacturing ring-shaped parts, can improve material utilization, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jack sets, etc., is widely used in steel pipe to manufacture. Steel pipe or a variety of conventional weapons indispensable materials, gun barrels, gun barrels, etc. to steel pipe to manufacture. Steel pipe according to the shape of the cross-sectional area of different can be divided into round pipe and shaped pipe. Since the circular area is the largest under the condition of equal perimeter, more fluid can be transported with circular pipe. In addition, the circular cross-section is more uniformly stressed when subjected to internal or external radial pressure, therefore, the vast majority of steel pipes are round pipes. However, the round tube also has certain limitations, such as under the conditions of plane bending, round tube is not as strong as the square, rectangular tube bending strength, some agricultural equipment skeleton, steel and wood furniture, etc. are commonly used square, rectangular tube. According to different uses also need to have other cross-sectional shape of the shaped steel pipe.

 

 

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Customer Evaluation

Over the years, we strive for survival by quality and development by efficiency, adhering to the business philosophy of "integrity, pragmatism, innovation and development", and have repeatedly won praise from customers.

FAQ

zhongyi

Are you a manufacturing company or a trading company?


zhongyi

We are a manufacturer of metal materials and products with many years of experience.

zhongyi

Can you provide samples?


zhongyi

We can provide free samples, but samples are subject to a sample fee, which is refundable upon order confirmation.

zhongyi

How can I get an accurate quotation?


zhongyi

Please provide the product standard, material, size, quantity and other information.

zhongyi

What kind of payment terms do you accept?


zhongyi

We can accept T/T, L/C, Western Union or negotiation.

zhongyi

What markets do you mainly sell to?


zhongyi

Australia, America, Asia, Middle East, Western Europe, Africa, etc

zhongyi

Can you deliver the goods on time?


zhongyi

Yes, whether the price changes or not, we guarantee to provide the best quality products and on time delivery. Integrity is the purpose of our company.

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Factory

Shandong Zhongyi Metal Products Co., Ltd. is an enterprise specializing in the research and development, production, sales and service of metal products. Located in Shandong Province, China, the company covers a vast area with advanced production equipment and testing instruments, and a team of skilled and strong staff.

Zongyi Metal Products Co., Ltd. mainly produces all kinds of metal products, serving the industries of precision machinery parts, automobile parts, electronic components, construction and decoration materials. Adhering to the business philosophy of "Quality is the foundation, Innovation is the soul", the company constantly introduces advanced technology and equipment to improve product quality and reduce production costs to meet customer needs.

We have rich experience in the metal products industry, and our products sell well in domestic and international markets and are well received by customers. We always adhere to the customer-centered, market-oriented, in order to survive, innovation and development. We are willing to cooperate with customers at home and abroad to create a better future.

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