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High quality ASTM A134 arc welded steel pipe, size NPS 16 and above, to meet your large diameter pipe needs

ASTM A134: Guiding excellence in large-diameter, arc-welded steel pipes. Ensuring quality, strength, and safety for industrial applications.
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The ASTM A134 Standard Specification is a crucial reference point in the world of steel pipe manufacturing. This standard, which applies to electric-fusion (arc)-welded steel pipes with sizes NPS 16 and over, sets out clear guidelines and benchmarks for the production of these essential industrial materials.

The significance of the ASTM A134 specification lies in its ability to ensure consistency and uniformity in the production of large-diameter steel pipes. By adhering to this standard, manufacturers can guarantee that their products meet the exacting requirements of various industrial applications, ranging from water and oil transportation to structural support in construction projects.

The specification covers a wide range of aspects related to steel pipe production. It provides detailed guidelines on the materials used, the manufacturing process, and the quality control measures that need to be implemented. The standard specifies the chemical composition of the steel, the dimensions of the pipe, and the tolerance levels for various parameters.

One of the key focuses of the ASTM A134 standard is the welding process used to join the steel components. Electric-fusion (arc) welding is a common technique used to create these large-diameter pipes. This process involves the use of an electric current to fuse the steel components together, creating a strong and durable bond. The standard provides detailed guidelines on the welding process to ensure that it is carried out correctly, resulting in a consistent and high-quality product.

The ASTM A134 standard also includes requirements for testing and inspection. Pipes that meet this specification must undergo rigorous testing to ensure their strength, durability, and overall quality. The tests include checks for dimensional accuracy, weld quality, and material properties. These tests provide assurance that the pipes meet the required standards for safety and performance.

In conclusion, the ASTM A134 Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over) is a comprehensive and essential reference point for manufacturers and users of large-diameter steel pipes. It provides clear guidelines for production, ensuring consistency and quality in the final product. Adherence to this standard is vital for anyone involved in the production, supply, or use of these pipes, as it guarantees that the materials used are fit for purpose and meet the exacting demands of various industrial applications.


  1. Oil and Gas Industry: Pipes conforming to ASTM A134 are extensively used in the oil and gas industry for transportation of crude oil, refined products, and natural gas. These pipes are designed to withstand high pressures, corrosive environments, and tough terrain, thus ensuring safe and efficient transportation.

  2. Water Works: Steel pipes compliant with ASTM A134 are commonly used in water supply systems, sewage treatment plants, and irrigation projects. The durability and strength of these pipes make them suitable for withstanding the harsh conditions of water transportation, treating, and distribution.

  3. Power Industry: In the power sector, ASTM A134 steel pipes play a crucial role in supporting power transmission lines, towers, and other related infrastructure. Their high tensile strength and resistance to adverse weather conditions make them ideal for withstanding the weight and stress associated with power transmission.

  4. Construction and Infrastructure Development: These pipes are widely used in construction projects for structural support, bridge components, tunnel lining, and more. The precision in dimensions, material quality, and welding strength ensured by ASTM A134 makes these pipes well-suited for demanding construction and infrastructure applications.

Overall, the ASTM A134 Standard Specification plays a pivotal role in meeting the diverse demands of various industries where the use of large-diameter, high-quality steel pipes is paramount. The standard ensures the pipes' reliability, safety, and performance, thus contributing significantly to the growth and development of these sectors.


GradeChemical CompositionMechanical Properties
A

Carbon (C) Max: 0.25

Manganese (Mn) Max: 1.35%

Phosphorus (P) Max: 0.035%

Sulfur (S) Max: 0.035%

Yield Strength Min: 30,000 psi

Tensile Strength Min: 50,000 psi

Elongation Min: 18%

B

Carbon (C) Max: 0.28

Manganese (Mn) Max: 1.15%

Phosphorus (P) Max: 0.035%

Sulfur (S) Max: 0.035%

Yield Strength Min: 35,000 psi

Tensile Strength Min: 58,000 psi

Elongation Min: 16%

C

Carbon (C) Max: 0.30

Manganese (Mn) Max: 1.00%

Phosphorus (P) Max: 0.035%

Sulfur (S) Max: 0.035%

Yield Strength Min: 40,000 psi

Tensile Strength Min: 60,000 psi

Elongation Min: 14%


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