| After-sales Service: | Support |
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| Warranty: | Support |
| Type: | Welded |
| Technique: | Hot Rolled & Cold Rolled |
| Material: | Carbon Steel |
| Surface Treatment: | Black |
| Samples: |
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| Customization: |
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Audited Supplier Production process of welded pipes
1. Material preparation: The materials for welded pipes include wide steel strips, hot-rolled steel strips, cold-rolled steel strips, etc. These materials need to be cut, leveled, and cleaned according to process requirements to meet the quality requirements of finished welded pipes.
2. Curling forming: The processed steel strip is formed into a relatively small diameter tube through a curling machine.
3. Welding process: High frequency induction welding or resistance welding process is used to weld the curled tube into a long welded pipe.
4. Steel annealing: Through steel pipe annealing treatment, the hardness of the steel pipe is reduced, and the stress level and internal stress of the finished welded pipe are reduced.
5. Size cutting: Cut the long welded pipe into the required length according to the process requirements.
6. Fine repair process: Further fine repair the cut welded pipe, including straightening, trimming, processing and other processes.
7. Coating treatment: According to the usage environment, the outer wall of the welded pipe is coated to improve its corrosion resistance, wear resistance, and corrosion resistance.
Application fields of welded pipes
1. Construction field: Welded pipes, as a type of building material, are widely used in building structures, steel structures, pipelines, power poles, highway guardrails, etc.
2. Automotive manufacturing field: Welded pipes are widely used in automotive manufacturing, including frames, chassis, exhaust pipes, etc.
3. Industrial manufacturing field: Welded pipes are also widely used in industrial manufacturing fields such as machinery, ships, and airplanes, with good strength and corrosion resistance.
In short, welded pipes, as an important metal material, have a wide range of production processes and application fields. The process of manufacturing welded pipes requires strict control to ensure the quality of finished welded pipes. In the field of application, the application scope of welded pipes is constantly expanding and has a wide market prospect.
| Shape | Rectangular:20*30-600*800mm |
| Square:20*20-600*600 mm | |
| Thickness | 1.0-35 mm |
| Standard | GB/T3094-2000 GB/T6728-2002 |
| ASTM A500 | |
| JIS G 3466 | |
| DIN EN 10210 | |
| or according to customers' requirement. | |
| Material | Q195,Q235,Q275,Q345,20#,45#,S235,S355 |
| St33,St37,St52 | |
| A500,A513,A106,A36 | |
| Technique | Hot Rolled, Cold Rolled, |
| ERW, | |
| High-frequency welded, | |
| Extruded | |
| Certification | ISO9001 |
| Surface | Bared, Oil, Galvanized, Paint |
| Length | 6m, 12m, or according to customers' requirements |
| Usage | Machinery manufacture, |
| Roads and Bridges, | |
| Construction, | |
| Transportation | |
| In order to make best quotation, Please kindly indicate length, width, thickness and the standard, material you required. | |
ISO9001
Tianjin Kaishuo Weiye Steel Co., LTD established in 2000.The company's main business: various types of angle steel, channel steel, I-beam, H-beam, steel plate, square tube and other profiles, which can meet the needs of customers in different industries for special specifications of various steels. We can provide products such as plates, pipes, profiles, building materials, special steel, stainless steel and non-ferrous metals.
With many years of experience in the steel industry, the company has a strong ability to control the market. According to the market demand, the company adjusts the inventory in a timely manner. The annual inventory is more than 10,000 tons, which can guarantee to meet the needs of market customers. The sales network has spread all over the world. We have exported more than 100countries like USA, Mexico, Canada, Spain, Russia, Singapore, Thailand, India etc
The factory area of Tianjin Kaishuo Weiye Steel Co., LTD covers an area of about 70,000 square meters, and has processing equipment such as large shearing machine, circular shearing machine, straightening machine, annealing furnace, punching and shearing production line.
The annual inventory is more than 10,000 tons, which can guarantee to meet the needs of market customers. The sales network has spread all over the world. We have exported more than 100countries like USA, Mexico, Canada, Spain, Russia, Singapore, Thailand, India etc
The quality of our products has been certified by ISO9001,SGS, JIS, BV, etc., and each product has a product inspection report to support customer inspection.
Sufficient inventory, now orders can be shipped directly, 7*24 hours online service, professional sales and after-sales service team, to solve various problems for you.
We have a strict quality control system, which can be customized according to your size. The price is low and the quality is high. Send us an inquiry now to get more discounts.
What is your payment terms?
Kaishuo Weiye Steel prefers 30%TT before inspection and the rest 70% against BL. However, our price term is negotiable. Multiple payment terms are available from us.
Which payment method can I choose?
Kaishuo Weiye Steel accepts all types of secured payment methods. Bank transaction, Trading Assurance, Paypal and etc are all available from us. Please feel free to contact us about your preferred payment method.
Is customization available?
Kaishuo Weiye Steel's expert equipment and highly-trained workers are capable of manufacturing highly customized products. Please feel free to discuss with us about your customized requirements, we can surely meet your needs.
Is sample providing service available?
Kaishuo Weiye Steel provides free samples to our clients. We usually also cover the sample shipping cost. Please feel free to order a sample from us.
What products and materials do you supply?
Kaishuo Weiye Steel mainly supplies all catalogs and all grades of steel and stainless steel products. Coils, strips, sheet, pipes, bars, beams, flanges and other customized products. Tin coating, Ti coating, galvanization and other surface treatments are also available.
Other than steel products, Kaishuo Weiye Steel also has high production capacity and holds large ready stock of all kinds of copper and aluminum products.
Please feel free to consult us about any related products above, we can surely meet your requirements.
Why should I choose you?
Kaishuo Weiye Steel Industry company has deeply engaged in metal material market for over 15 years. We established perfect reputation world-widely. Craftsmanship spirit is the fundamental of Kaishuo Weiye Steel since we are established. Kaishuo Weiye Steel keeps our products as highest quality and lowest price to maintain our self competitive. Proving our clients with best trading experience is the goal we always insist of.
How can I make sure you are a reliable supplier?
Kaishuo Weiye Steel is willing to provide our copies of company registration certificate, registration and Chinese exporting registration for you to view. These certificates are under Chinese Trading Law effect. They can help you officially check our company's capability and status.
On the products' side, certificates as Mill Test Certificate(MTC), Third Party Material Quality Conformity Certificate and other required certificates are available before the order. Samples are also available from us for you to test in your own testing facility.Kaishuo Weiye Steel also supports third-party inspection before shipping. Kaishuo Weiye Steel also welcomes a company tour for you to check our factory status.
Steel also has high production capacity and holds large ready stock of all kinds of copper and aluminum products.
Please feel free to consult us about any related products above, we can surely meet your requirements.
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