PRODUCTS

Q235A/S235JR/A36 Welded pipe

Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip after crimping, welded steel pipe wall is thicker, has higher strength and stiffness, can withstand greater pressure and impact, its excellent mechanical properties, welded steel pipe is a widely used in construction, petroleum, chemical, light industry, machinery and other fields of pipe.

Q235A/S235JR/A283M Welded welded pipe is manufactured by low-frequency or high-frequency resistance "resistance". They are round pipes welded from steel plates with longitudinal welds. It is used to transport oil, natural gas and other vapor-liquid objects, and can meet various requirements of high and low pressure.


Product NameQ235A/S235JR/A36 Welded pipe
TechniqueERW pipe
Wall Thickness0.5MM~300MM
Outer Diameter21.3MM~660MM
LengthLength:Single random length/Double random length
Surface Treatment1. Galvanized
2. PVC,Black and color painting
3. Transparent oil,anti-rust oil
4. According to clients requirement
StandardAPI 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711
Application1. Fence, greenhouse, door pipe,greenhouse
2. Low pressure liquid, water, gas, oil, line pipe
3. For both indoor and outdoor the building construction
4. Widely used in scaffolding construction which is much cheaper and convenient
EdgePlain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
MaterialQ235B,A36,S235JR,SS400,ST37 etc
PackingBundle, or with all kinds of colors PVC or as your requirements
Container Dimension20ftGP:5898mm(Length)x2352mm(Width)x2393mm(High)   24-26CBM
40ftGP:12032mm(Length)x2352mm(Width)x2393mm(High)  54CBM
40ftHC:12032mm(Length)x2352mm(Width)x2698mm(High)    68CBM


Our carbon steel welded pipes are manufactured from high-quality materials complying with international standards including ASTM A53, API 5L, and ASTM A135. These pipes feature excellent weld integrity and dimensional consistency, making them ideal for low-pressure fluid transportation, structural applications, and fencing systems. Custom lengths and surface treatments are available upon request to meet specific project requirements.





Our carbon steel welded pipes are manufactured using advanced ERW (Electric Resistance Welding) or LSAW (Longitudinal Submerged Arc Welding) technology. The production process incorporates precision forming systems with automatic seam tracking, in-line heat treatment for stress relief, automated ultrasonic testing for weld integrity, and computer-controlled cutting to length. These integrated measures ensure strict wall thickness tolerance of ±10% and consistent product quality.





In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.





Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.


Q: Are You Manufacture or Trade Company?
A: We are the professional manufacturer of pipeline products located in Tianjin,China. Welcome to contact us and visit our factory before you place orders.
Q: How do you guarantee the quality?
A: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.
Q: Can I get free samples?
A: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.
Q: What is the MOQ? 
A: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.
Q: Can you OEM or ODM?
A: Yes, we have a strong developing team. The products can be made according to your request

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