Q255/SM400 Welded Steel Pipe
Welded pipe is a pipe made by curling steel plates or strips into shape and then welding them. It is an important product type of steel and is widely used in various fields, such as construction, bridges, vehicle manufacturing, oil, and natural gas transportation, etc. The production process of welded pipes is relatively simple, the production efficiency is high, and the cost is low, so it has great market competitiveness.
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Key Attributes

Product NameQ255/SM400 Welded Steel 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.
Material10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35
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


Product Details

Definition and Manufacturing Process

Welded pipes are steel pipes that are made by rolling steel strips or steel plates into a tube shape and then welding the seams together using welding technology. Its manufacturing process is relatively simple, its production efficiency is high, and its cost is low.


Classification and Materials

Classification by welding method:

Straight seam welded pipe: The weld seam is parallel to the longitudinal direction of the steel pipe. It is made of steel plate or strip steel and then rolled through the straight seam welding process.

Spiral welded pipe: It is made of narrow-width steel strips that are curled and welded in a spiral shape. It is mainly used for long-distance transportation pipelines of oil and natural gas.

Classification by material:

Stainless steel welded pipe: has excellent corrosion resistance and aesthetics, and is often used in food, chemical industry, medical and other fields.

Carbon steel welded pipe: High strength and good weldability make it the first choice in construction, bridges, machinery manufacturing and other fields.

Alloy steel welded pipe: has special properties, such as high temperature resistance, low temperature resistance, corrosion resistance, etc., and is suitable for applications in special environments.


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Product Introduction

Advantage

1.High strength and compression resistance:

Carbon steel welded pipe has high load-bearing capacity and pressure resistance, and can meet the needs of various industrial environments. This is due to the strength of the material itself and the structural stability brought by the welding process.

2.Good sealing:

Carbon steel welded pipes use advanced welding technology during the manufacturing process, such as spiral welding or straight seam welding, to ensure that the pipe joints are firm and reliable, and are less prone to leakage and other safety hazards, thus ensuring the sealing of the pipeline system.

3.Corrosion resistance:

After proper anti-corrosion treatment (such as galvanizing, painting, etc.), carbon steel welded pipes can operate stably for a long time in harsh chemical media, resist corrosion and erosion, and extend their service life.

4.Low production costs:

The production process of carbon steel welded pipes is relatively simple, the cost is low, and it is suitable for large-scale production and use. This makes carbon steel welded pipe price competitive and the material of choice for many industries.

Application

1.Water supply system:

Carbon steel welded pipes are often used to construct urban water supply networks, including drinking water supplies and the transmission of other non-corrosive liquids. Its good sealing and corrosion resistance ensure the safety of water quality and the stable operation of the system.

2.Drainage system:

Carbon steel welded pipes are also suitable for drainage systems such as sewage discharge and rainwater collection. Its high strength and compression resistance can withstand large water pressure and scouring force.

3.Oil and gas transportation:

Carbon steel welded pipe can reliably transport oil and natural gas in high-pressure environments. Its sealing and corrosion resistance ensure safety and stability during transportation.

4.Chemical Industry:

Carbon steel welded pipes are also common in chemical production because of their ability to resist corrosion and erosion from some chemicals. At the same time, its high strength and temperature resistance are also suitable for some special chemical processes.

5.Heat and steam delivery:

Where high-temperature media transfer is required, such as heat exchanger circuits in power plants, carbon steel welded pipes can be used. Its high temperature resistance ensures the stable operation of pipelines in high temperature environments.

6.Construction sector:

Carbon steel welded pipes are also widely used in the construction field, such as hot water supply, heating systems, air conditioning ducts, etc. Its excellent thermal insulation performance and durability make the operation of building systems more efficient and reliable.

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Quality Control

We have our own Physical & Chemical Testing Center Lab to guarantee our product quality. Our test items & instrument fully meet international standards.


Value Added Services

In addition to our high-quality carbon steel piping, we also offer a variety of secondary services to ensure your materials meet all of your needs. We can provide:


▪ Laser cutting services
▪ Saw cutting services
▪ Galvanizing services
▪ Sandblasting services
▪ Bending services


Product Inventory


As a leading company, we are known for our excellent product quality and professional services, providing our customers with a reliable partner. We have a global sales network that can meet the needs of customers in different countries and regions.


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Factory Video


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