Q345B Spiral Welding Carbon Steel Pipe
PRODUCT DETAILS
Product information
Spiral-welded pipe is produced from coils of steel that are unwound and flattened. The flattened strip is formed by angled rollers into a cylinder of the desired diameter. Interior and exterior SAW seal the spiral seam. At the end of the coil, a new coil is butt-welded to the trailing edge of the pipe, forming a cross seam. The pipe is cut to length and the ends are beveled if required. Spiral-welded pipe is primarily used for water distribution service. Spiral-welded pipe is available in sizes from 24 in.
Production process
The concept of spiral-welded pipe fabrication is the twisting of a metal strip into a spiral shape, followed by welding where the edges join one another to form a seam. This fabrication method starts from a steel coil . The flat and uncoiled steel sheet, after edge trimming for welding preparation, passes through a triplet of rollers positioned in a “pyramid” configuration, and oriented at an appropriate angle with respect to the de-coiling direction. In such a way, the steel coil is bent into a spiral shape. There are two welding stations just after passing through the pyramid rollers, one internal and one external, which perform pipe welding with the submerged arc welding method (SAW). In SAW, the metal is joined by fusing with an electric arc that develops between a metal electrode and the edge of the pipe. A layer of granular, fusible material covers the weld area and protects the arc and the molten metal. Internal welding is performed first, followed by external welding.
More details
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Product Name |
spiral welded steel pipe |
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Technique |
Hot Rolled |
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Steel grades |
Q195A, Q215A, Q235A Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500, |
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Standards |
GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect. |
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Pipe ends |
plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp, |
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Application |
liquid delivery (pump well, gas, water), construction pipe, structural |
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Delivery Time |
10days from stock; 15-20days produced according to the qty |
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Payment Term |
T/T or L/C |
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Price Term |
CIF; CFR; FOB |
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Loading Port |
Qingdao port Tianjin port Shanghai Port China |
Factory appearance and appearance
Shandong Yinghao Steel Co., Ltd. has tens of thousands of square meters of plant. The company has abundant capital, sufficient supply of goods and convenient transportation. The company adheres to the external market as the center, the internal management as the center, and takes the road of quality and efficiency development, and has achieved good economic and social benefits.
Company's products: stainless steel series, carbon steel series, aluminum series, galvanized, color coating, coil, seamless pipe, welded pipe, square pipe, round rod, profile, steel wire, steel strand and other products. Products sell well all over the country, and exported to the EU, the United States, Australia, Southeast Asia, the Middle East and other more than 50 countries, we can also customize products according to your requirements.
We have advanced processing equipment, such as automatic submerged arc welding machine, CNC cutting machine and other equipment, strict control of product quality. In line with the business principle of mutual benefit, we have won the trust of customers with professional service, quality products and competitive prices. We warmly welcome domestic and foreign customers to cooperate with us and achieve success together.
Welcome new and old customers to visit, negotiate, win-win cooperation!

Customer Photos
Over the years, Shandong Yinghao Steel Co., Ltd. is committed to developing the international market. Our customers come from all over the world, such as Africa, Latin America, the Middle East, Southeast Asia, Europe, etc. We have established long-term and friendly cooperative relations with many customers from all over the world. Every year, there are many well-known buyers to visit our factory, and our products have been recognized by them.

Packing and delivery
We offer different modes of transport depending on the customer's destination: rail transport and ship transport.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards, Specifications, Package No., Contract No., Heat No., Weight of zinc film, Color, Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.

Application field
Equipment manufacturing and repair
Antibacterial stainless steel has the advantages of stainless steel and good antibacterial properties, and the demand in the field of kitchen equipment, work benches and utensils of the food industry, medical equipment, tableware and hanging towel holders in daily life, and brackets of refrigerators are increasing.
Auto industry
The main use of stainless steel is the exhaust system, which accounts for more than 1/2 of the total amount of automotive stainless steel, 80% of which is ferritic stainless steel.
Petrochemical industry including fertilizer industry
The demand for stainless steel pipes is extremely large. The industry mainly uses stainless steel seamless pipes. The
specifications include: 304, 321, 316, 316L, 347, 317L, etc., the outer diameter is around ¢18-¢610, and the wall thickness is 6mm-50mm. Left and right (generally the medium and low pressure conveying pipes with specifications above Φ159mm), the specific application fields are: furnace tubes, material conveying pipes, heat exchanger tubes, etc.
Fluid transport such as water and gas
Stainless steel tubes and water delivery equipment are the most advanced basic water purification materials in the world. They have strong corrosion resistance, and can not be compared with cast iron pipes, carbon steel pipes and plastic pipes.

PARTNER
CERTIFICATE OF HONOR
The company's products cover stainless steel coil, stainless steel pipe, stainless steel bar and stainless steel profiles. The company has plasma cutting machine, coil flattening equipment, laser cutting machine, 8K mirror, frosted wire drawing, film and titanium plating equipment, which can be used for stainless steel material flattening, slitting, cutting plate, oil grinding wire drawing, whole roll oil film wire drawing, 8K mirror, titanium and other processing.
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