American standard for spiral welded steel pipe

Spiral welded steel pipes (SSAW) are made by rolling low-carbon carbon structural steel or low-alloy structural steel strips into pipe blanks at a certain spiral angle (called forming angle), and then welding the pipe seams. It can be made of narrower Strip steel produces large diameter steel pipes. Its specifications are expressed as outer diameter * wall thickness. The welded pipe should ensure that the hydraulic pressure test, tensile strength and cold bending performance of the weld meet the regulations.

The American standards for spiral welded steel pipes mainly include ASTM A53, ASTM A252 and ASTM A139. ‌

In the United States, the dimensions and specifications of spiral welded steel pipe are usually specified in standards such as ASTM A53, ASTM A252, and ASTM A139. ‌These standards cover different grades and sizes of spiral pipes ‌for use in different applications.

‌ASTM A53 standard applies to welded and seamless steel pipe for general use,‌while ASTM A252 and ASTM A139 specify steel pipe for structural purposes and liquid transportation, respectively. ‌These standards ensure the quality and performance of spiral pipes to meet the needs of a variety of applications.

1. ASTM A53 standard
ASTM A53 is a standard widely used in the steel pipe manufacturing industry. It mainly stipulates the manufacturing standards and material requirements for welded and seamless steel pipes. The standard covers many different types of welded and seamless steel pipe, including heavy-duty, medium-duty and light-duty pipe.

2. ASTM A252 standard
ASTM A252 is a standard established by the American Iron and Steel Institute to regulate the design, production and installation of spiral welded steel pipe. The standard covers steel pipe materials, dimensions, mechanical properties, corrosion resistance, welding and testing. ASTM A252 standard applies to steel pipe used in high-pressure and ultra-high-pressure conditions.

3. ASTM A139 standard
ASTM A139/A139M standard specifies the production of electrofusion (‌arc)‌welded straight and spiral seam steel pipe,‌especially applicable to steel pipe with nominal dimensions equal to and larger than 4 inches. ‌This pipeline is mainly used to transport low-pressure liquids, gases or steam.

In addition, ‌spiral welded steel pipes are also regulated by other standards in the United States, ‌such as API SPEC 5L - the American Petroleum Institute standard, EN10219 - the standard established by the European Standards Committee, ‌ and GB/T9711 - the Chinese national standard, ‌these The standard provides specific guidance on the dimensions and technical requirements for spiral welded steel pipes. The American Society of Mechanical Engineers (‌ASME)‌ has also formulated relevant standards,‌such as ASME B31.3,‌which mainly stipulates the manufacturing,‌inspection and testing requirements for steel pipes for pressure vessels,‌including spiral steel pipes.

In short, spiral welded steel pipe is a very commonly used pipe, and its quality is directly related to the safety of transporting fluids and gases. Therefore, when choosing steel pipes, you must carefully understand its execution standards and choose high-quality products that meet the requirements to ensure safe use.

Read more: Spiral welded pipe manufacturing process