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galvanized steel pipe national standard,galvanized steel pipe quality control

2024-05-17Product News

Requirements for quality control in the national standard of galvanized steel pipes

The national standards for galvanized steel pipes have a series of requirements for quality control. These requirements ensure that the quality and performance of galvanized steel pipes can meet specific engineering needs. The quality control requirements of the national standards for galvanized steel pipes are mainly reflected in the following aspects.

2024-05-17Product News

Treatment method of 304 stainless steel pipe after welding

The 304 stainless steel welded pipes are recognized for their commendable attributes such as robust corrosion resistance, efficient heat transfer, and the ability to withstand high pressures. It is imperative that following the welding process, these pipes undergo a thorough pickling and passivation treatment. This treatment should be applied concurrently to the entire product, not just the welded areas, to ensure uniformity and optimal performance. However, welding can sometimes lead to various complications, including localized corrosion and even rust formation under conditions of relatively mild corrosion. This necessitates a careful and methodical approach to post-weld handling of 304 stainless steel pipes.

large-diameter flange quality technology,large-diameter flange special uses

2024-05-16Product News

Introduction to the quality technology and special uses of large-diameter flanges

The large-diameter flange is cut from a medium plate into strips and then rolled into a circle, and then the water lines, bolt holes, etc. are processed. Large-diameter flanges can be up to 7 meters long and are made of carbon steel, stainless steel, alloy steel, etc. Large-diameter flange is a type of flange with a wide range of uses. It is mostly used when the medium conditions are relatively mild, such as low-pressure unpurified compressed air, low-pressure circulating water, etc. Here is an introduction to the quality technology and special uses of large-diameter flanges.

stainless steel pipe processing technologies

2024-05-16Product News

Processing technologies for stainless steel pipes

Various processing methods are available for stainless steel pipes, each suited to different requirements. Below are some common processing techniques for stainless steel pipes.

2024-05-15Product News

Characteristics of 304 stainless steel seamless pipe

Stainless steel seamless pipes exhibit exceptional resistance to stainless corrosion and intergranular corrosion, making it suitable for environments with alkali solutions and a wide range of organic and inorganic acids. This article delves into the detailed aspects of 304 stainless steel seamless pipes.

stainless steel pipe heat treatment, stainless steel pipe process

2024-05-15Product News

Heat treatment process of stainless steel pipes

Heat treating stainless steel pipes varies depending on the type of stainless steel used. Here are common heat treatment processes for different stainless steel pipes.

High frequency welding H beam,H beam quality

2024-05-15Product News

Factors affecting the quality of high-frequency welded H beam

The quality of high-frequency welded H beam steel is influenced by a variety of interrelated factors that impact the overall structural integrity and performance of the material. Here is a revised and detailed examination of these factors.

welded steel pipes wall thickness deviation

2024-05-14Product News

Wall thickness deviation range of welded steel pipes

The permissible variation in wall thickness for welded steel pipes is typically regulated by national standards, often around a±10% margin. The precise allowable deviation must be calculated based on the specific standards applicable. This article will briefly introduce wall thickness deviation range of welded steel pipes.

2024-05-14Product News

Causes of cracking of cold drawn seamless steel pipes

This article will briefly the causes of cracking of cold drawn seamless steel pipes.

2024-05-14Product News

ASTM A213 T92 seamless steel pipes

ASTM A213 T92 seamless steel pipes are distinguished for their widespread use in various sectors of industrial production due to their distinctive attributes. This article will delve into the specifics of ASTM A213 T92 seamless steel pipes to provide a comprehensive understanding.

2024-05-13Product News

ASTM A795 ERW Steel Pipe

ASTM A795 ERW (Electric Resistance Welded) steel pipe is specifically designed for fire protection systems. This standard, established by the American Society for Testing and Materials (ASTM), covers black and hot-dipped zinc-coated (galvanized) welded and seamless steel pipes for fire protection use. Here is a detailed look at the ASTM A795 ERW steel pipe.

2024-05-13Product News

Spiral Steel Pipe Connection Method

Spiral steel pipes (SSAW) are extensively utilized in industries such as construction, water management, petroleum, and chemicals. To ensure robust and leak-proof connections with strong corrosion resistance, it's crucial to employ the correct connection techniques. Here, we explore several effective methods for connecting spiral steel pipes.

United Steel Industry As the most important steel pipe manufacturer and exporter in China, in the past 20 years, we have completed more than 100 projects, with partners in more than 100 countries, and established relationships with oil and gas and EPC companies in many countries business relationship.

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