permanentsteel

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User for 4 years | Last online 2 years ago (show activity)

@permanentsteel · 2 years ago

How to Solve the Performance Damage of Stainless Steel Pipe?

In order to improve the performance of stainless steel pipe (ss pipe) , it is often necessary to adopt certain cold working methods, such as cold drawing, cold rolling, cold rolling, cold bending, co...

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@permanentsteel · 3 years ago

Construction Technology of Pile Driving Spiral Steel Pipe

Piling spiral steel pipe（SSAW） is a spiral seam steel pipe made of strip steel coils as raw materials, often extruded and formed by automatic double-wire double-sided submerged arc welding. So, wha...

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@permanentsteel · 3 years ago

Anti-corrosion Method for Inner and Outer Walls of Seamless Steel Pipe

The raw material of seamless steel pipe is light, high strength, good tolerance, can withstand high internal pressure, sensitive in production and application, and can be used in messy or harsh geol...

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@permanentsteel · 3 years ago

What are the Commonly Used Heat Treatment Processes for Seamless Steel Pipes?

There are many types of steel pipes, and the steel grades (species) used are not the same. The chemical composition of the same variety of steel pipes may also be different, but after heat treatment,...

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@permanentsteel · 3 years ago

Features and Causes of 8 Defects of Seamless Steel Pipe

If there are some defects in the seamless steel pipe, it will undoubtedly have a fatal impact on the quality of our products. So how to avoid these defects? Then you need to understand the reasons for...

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@permanentsteel · 3 years ago

The Main Purpose of American Standard Seamless Steel Pipe Preheating and Post-weld Heat Treatment

The purpose of preheating before welding and heating after welding of American standard seamless steel pipes is to reduce the cooling rate of welds and prevent the formation of hardened structures a...

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@permanentsteel · 4 years ago

How to slow down the aging speed of spiral tube?

Spiral pipe is a kind of steel pipe that is often used in our daily life. It has good anti-corrosion performance. Spiral pipes have relatively high environmental requirements when they are stored. Th...

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