Cangzhou DoubleDragon Steel Pipe Co,Ltd.
June 29, 2024 No Comments
What is ASTM A252? ASTM A252 is a standard specification for welded and seamless carbon steel pipe piles issued by the American Society for Testing and Materials (ASTM International). This…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
June 13, 2024 No Comments
Forming of spiral steel pipe The spiral steel pipe is formed into a spiral of hot-rolled strip steel, and the spiral steel pipe manufacturer uses the joint and seam welding…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
June 13, 2024 No Comments
Commonly used large-diameter welded pipe production methods include UOE forming, row roll forming and spiral forming, and their characteristics are different. Size range. The production of row roll forming and…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
June 7, 2024 No Comments
This article briefly analyzes the reasons for uneven coating thickness of coated spiral steel pipes and how to make the coating uniform. Coated steel pipes process
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
May 28, 2024 No Comments
Spiral seam steel pipe is one of the steel pipe products we often see. So how is spiral seam steel pipe produced? Today, we walked into the production workshop of…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
May 24, 2024 No Comments
Thick-walled spiral steel pipes are stronger and more durable than ordinary spiral steel pipes. So what impact does the hardness of thick-walled spiral steel pipes have on their quality? When…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
May 24, 2024 No Comments
Spiral welded steel pipe is one of the most commonly used steel pipes at present. With its advanced technology and strong and durable characteristics, spiral welded steel pipe is widely…
Cangzhou DoubleDragon Steel Pipe Co,Ltd.
May 24, 2024 No Comments
Heating temperature of thick-walled spiral steel pipe with critical zone quenching Sub-temperature quenching, that is, incomplete quenching of thick-walled spiral steel pipes, or critical zone quenching and two-phase zone heating…
