Galvanized Seamless Steel Pipe

Galvanized seamless steel pipe is a pipe made of carbon steel with a galvanized outer surface. Galvanizing is to apply a layer of zinc to the surface of the steel pipe to protect the steel pipe from corrosion. Seamless pipe means that the pipe has no seams and has higher strength and pressure resistance. Galvanized seamless pipe is a pipeline product widely used in construction, machinery, chemical industry and other fields. It has excellent corrosion resistance, temperature resistance and pressure resistance. Galvanized seamless steel pipe is based on seamless steel pipe , a pipe made by hot-dip galvanizing the surface of the steel pipe, is a common steel pipe material with good anti-corrosion performance and durability. It is widely used in various fields, such as construction, machinery, chemical industry, electric power, petroleum and so on.

Features and advantages of galvanized seamless steel pipe
1. Corrosion resistance: Galvanized treatment can form a uniform zinc layer on the surface of the steel pipe, so that the steel pipe has excellent corrosion resistance and can be used in harsh environments
2. Pressure resistance: The manufacturing process of the seamless pipe makes the strength and pressure resistance of the pipe higher, and can withstand greater pressure
3. Temperature resistance: Galvanized seamless steel pipe has good high temperature resistance and can be used in high temperature environments.
4. Beautiful appearance: the outer surface of the galvanized seamless steel pipe is smooth and has a certain luster, which can make the appearance of the building more beautiful.
5. Easy maintenance: galvanized seamless steel pipe has a long service life and low maintenance cost.

Production process of Galvanized seamless steel pipe
The production process of galvanized seamless steel pipe mainly includes steel pipe manufacturing, surface treatment, galvanizing treatment, cooling and other links. The first is steel pipe manufacturing, which is made of seamless steel pipes by cold drawing or hot rolling; then the surface treatment, the surface of the steel pipe is cleaned, pickled, etc.; followed by galvanizing, the steel pipe is immersed in molten zinc liquid, Coat the surface with a layer of zinc; finally, cool the galvanized steel pipe through cooling equipment to form a tight zinc layer on the surface.

Application of galvanized seamless steel pipe
1. Construction field: Galvanized seamless steel pipe are widely used in water, gas, oil and other piping systems of buildings
2. Mechanical field: Galvanized seamless steel pipe can be used to manufacture pipes, bearings, etc. of mechanical parts.
3. Chemical industry: Galvanized seamless steel pipe can be used in chemical piping systems, such as transporting chemicals, gases, etc.
4. Oil and gas transmission field: Galvanized seamless steel pipe can be used in the application field of galvanized seamless steel pipe for oil and gas pipeline system

All in all, galvanized seamless steel pipe is an excellent pipe with good anti-corrosion performance, durability and aesthetics, and is widely used in various fields.

Galvanized seamless steel pipe is a welded steel pipe for low-pressure fluid transportation. The current national standard for galvanized seamless steel pipe is:

Chinese standard: 

GB/T 3091-2015 "Welded steel pipes for low-pressure fluid transportation"
This standard applies to welded steel pipes for general purposes, including hydraulic supports, hydraulic supports, structural supports, etc.

British Standard: 

BS 1387:1985 "Seamless and welded steel pipes for pipes (heavy duty)"
This standard specifies the requirements for seamless and welded steel pipes (heavy duty) for piping, suitable for conveying non-corrosive fluids.

American Standard: 

ASTM A53 / A53M - 20 "Standard Specification for Pipe, Steel, Black and Hot Dip Galvanized, Welded and Seamless"
This standard covers steel piping for the transport of steam, water, gas and air, including hot-dip galvanized and black (non-galvanized) welded and seamless pipe.

Japanese Standard: 

JIS G 3444:2006 "Seamless steel pipes for carbon steel pipe towers and supports"
This standard applies to seamless carbon steel pipes used for structural purposes such as buildings, bridges, and docks.

Galvanized seamless steel pipe is a commonly used pipe material, which has good corrosion resistance, wear resistance and heat resistance, and is widely used in petroleum, chemical, electric power, machinery and other industries.
According to the national standard, the thickness standard of seamless galvanized steel pipe is as follows:

There are mainlydiameter is 6mm-820mm,
The wall thickness is 1mm-60mm.
The allowable deviation of the thickness of the outer layer of galvanized seamless steel pipe is ± 10%.

Steel pipes within these tolerances are considered qualified products. However, for users with special needs, different deviation ranges correspond to different quality standards, which need to be selected according to the actual situation.