Spiral Steel Tube ASTM A252

Spiral steel tube, also known as spiral welded steel pipe, is a type of steel tubing formed by helically welding narrow steel strips together. The ASTM A252 specification covers zinc-coated steel pipe for use in piles and structural purposes. This standard ensures the quality, strength, and durability of the spiral steel tubes, making them suitable for various applications in the construction and engineering industries.

The manufacturing process of spiral steel tube involves rolling and welding narrow steel strips into a tubular shape. The strips are fed through a forming machine that bends them into a helical shape and then welded together at the seam. This welding process creates a strong and durable bond that ensures the structural integrity of the tube.

The ASTM A252 specification outlines the requirements for the chemical composition, mechanical properties, and coating of the spiral steel tubes. The specification covers different grades of steel, each with specific strength and toughness properties. The choice of grade depends on the intended use and load-bearing requirements of the tube.

The spiral welded construction of these tubes provides several advantages over other types of steel tubing. Firstly, the helical welding process allows for the production of longer lengths of tubing, reducing the need for joints and increasing overall structural stability. Secondly, the continuous welding process results in a smoother and more uniform internal surface, reducing fluid friction and improving flow characteristics.

FAQ：

1.How about the delivery time?
A: Within 5-10 days after we confirm you requirement.
2.what kind of payment does your company support?
A: T/T, 100% L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me.
3.How do you ensure my goods?
A:First our clients can visit factory to see the raw material, production lines, warehouse, transportation and inspection workshop.And you can ask for free sample, we can also process goods as your special requirements. Please do not hesitate to contact us.
4.How is the goods packaged?
A:The steel coil is packaged with waterproof paper, protective wood black, metal band strapping, inner protective steel ring, outer protective steel ring. Then the coils will be reinforced with wood support in containers, steel lashing belts also used for stable and safe.
 

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