Industry Information

Update August 15, 2018

Some reasons for corrosion of stainless steel welded pipes

For stainless steel welded pipes, there are some reasons for corrosion. Pls check below for them First, from the corrosion site 1. Pitting corrosion: It is a form of local corrosion that causes...

Update August 13, 2018

The introduction of spiral welded steel pipes

Spiral welded steel pipe is a kind of steel pipe which is welded and formed by a steel strip or a steel plate to be deformed into a circular shape or a square shape and has a joint on the surface....

Update August 13, 2018

Do you know mechanical properties of alloy steel pipes?

Do you know mechanical properties of alloy steel pipes? Let's get to know about it together. Standard Brand Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness GB3087 ≥195 ≥24 / ≥245...

Update August 11, 2018

National standard flange

There are many different standards of forged flanges, for example, GB is the national standard. Below is standard No. about different materials and types of flanges under GB standard. GB/T...

Update August 11, 2018

Description for reducers' OD, WT and standards

Butt weld reducers are divided into concentric reducers and eccentric reducers according to centerline. 1.The method is expressed by multiplying the diameter of the big head by the diameter of the...

Update August 03, 2018

Some standards for Spiral steel pipe

Some standards are suitable for spiral steel pipe, they are divided into below: SY/T5037-2008 (parts, also known as common fluid transmission pipeline with spiral seam submerged arc welded steel...

Update August 01, 2018

how to manufacture welded pipe fittings

Welded pipe fittings is one kind of pipe fitting that made of welded pipe. For the pipe fitting manufacturer, the forming process using the welded pipe is basically the same as that of the seamless...

Update August 01, 2018

Four basic classifications of steel pipes

Let's talk about steel pipes. There are many classifications based on production methods, shape of section, wall thickness and usage. Pls check below information. 1. According to production methods...

Update July 31, 2018

Seamless steel tubes' national standards

For seamless steel tubes, there are many different national standards and types, which are suitable for a variety of industry needs. Its required market demand is in the same type of steel tubes,...

Update July 20, 2018

Pipe caps' usage

We are one of cap manufacturer in Yanshan, Cangzhou. Steel pipe caps are widely used to protect the end of pipe, so the shape is designed according to pipeline. There are 3 types, including butt weld...