ASTM A139spirally welded pipe is a type of spiral submerged arc welded steel pipe that is produced in accordance with the American Society for Testing and Materials (ASTM) A139 standard. ASTM A139 SSAW steel pipe is suitable for conveying liquid, gas, and oil.

ASTM A139 SSAW steel pipe has the advantages of high strength, good fatigue resistance, high toughness and low brittle transition temperature, good welding performance, and good corrosion resistance. It is widely used in oil and gas pipelines, the chemical industry, heating exchange tubes, steel structures, and other engineering fields

Product Description

The spirally welded pipe is made by winding a strip of material around a mandrel and welding it at each joint. This process is used to create a seamless, continuous spirally welded pipe. The material used in the process is usually low-carbon steel, which is highly resistant to corrosion and other environmental factors.

ASTM A139 SSAW steel pipe is produced by the spiral submerged arc welding process, which is an advanced welding method with high welding efficiency, low welding cost, a simple welding process, and convenient welding operation. It is suitable for welded pipes with different diameters and wall thicknesses.

Applications: Oil and gas platforms, bridge building, solid waste disposal, chemical industry, heating exchange tubes, steel structures, etc.

ASTM A139 SSAW steel pipe chemical composition:

Table 1. Chemical Composition and Mechanical Property of ASTM A139 SSAW Steel Pipe

ASTM A139 SSAW steel pipe features:

1. High strength and excellent toughness.

2. Low brittle transition temperature, good weldability, and corrosion resistance.

3. Lightweight, easy to transport and install.

4. High mechanical strength, excellent resistance to fatigue, good thermal stability, and low thermal expansion coefficient.

5. High strength and toughness, good temperature resistance, acid and alkali resistance, erosion resistance, and other properties.

Applications

ASTM A139 spirally welded pipe can be used for a variety of applications, including:

1. Water Supply Lines: ASTM A139 spirally welded pipe is ideal for use in water supply lines due to its strength and seamless design.

2. Oil and Gas Pipelines: ASTM A139 spirally welded pipe is also used in oil and gas pipelines due to its strength and corrosion resistance.

3. Fabrication Projects: ASTM A139 spirally welded pipe is also used in large fabrication projects due to its strength and ease of fabrication.

4. Higher Strength: ASTM A139 spirally welded pipe is much stronger than straight-seam welded pipe due to its spiral shape. This makes it ideal for applications where high strength is required.

5. Lower Cost: ASTM A139 spirally welded pipe is less expensive than welded plate pipe, making it a cost-effective choice for many applications.

6. Easier Fabrication: ASTM A139 spirally welded pipe is easier to fabricate than welded plate pipe due to its shape. This makes it an ideal choice for applications where custom fabrication is necessary.

Conclusion

ASTM A139 SSAW steel pipe is widely used for oil and gas pipelines, bridge building, solid waste disposal, the chemical industry, heating exchange tubes, steel structures, and other engineering fields. It is a high-quality steel pipe with excellent strength, toughness, and corrosion resistance, suitable for various engineering purposes.

ASTM A139 SSAW steel pipe is an ideal choice for a variety of applications due to its low cost, durability, corrosion resistance, high strength-to-weight ratio, and versatility. It is also a great choice for applications where maintenance is a concern, as it requires very little maintenance.