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Several common anti-corrosion techniques for spiral steel pipe anti-corrosion
Anti-corrosion spiral steel pipes play an important and different role in people’s daily lives. Anti-corrosion spiral steel pipes generally refer to the use of special technology to treat ordinary spiral steel pipes that have been anti-corrosion treated, so that the spir...Read more -
The production process and inspection standards of thick-walled straight seam steel pipes
Thick-walled straight-seam steel pipes are made by rolling long strips of steel strips into round tubes through high-frequency welding units and welding straight seams. The shape of the steel pipe can be round, square, or special-shaped, which depends on the sizing and rolling...Read more -
What are the classifications of coating methods for large-diameter plastic-coated steel pipes for water delivery
The coating methods of plastic coating equipment for large-diameter water-conveying plastic-coated steel pipes are divided into two categories: internal coating and external coating at the same time, and internal coating and external coating separately. Technological coating m...Read more -
Stainless steel straight seam steel pipe details
The company can produce austenitic and super-austenitic stainless steel pipes, ferritic stainless steel pipes, duplex steel and super duplex steel pipes of different steel grades with outer diameters from φ8mm to φ3600mm and wall thicknesses from 0.2mm to 120mm. Nickel-based a...Read more -
The difference between seamless steel pipe, thermal tension reduced steel pipe, and straight seam steel pipe
At present, the competition in the seamless steel pipe market is becoming increasingly fierce. Due to the limitations of its production process, the production cost of seamless steel pipes has always been high, resulting in a gradual decline in its economic benefits. With the ...Read more -
Thick wall stainless steel pipe details
Stainless steel thick-walled steel pipes refer to stainless steel pipes with a wall thickness of 10-50.0mm. Those with a wall thickness of 50mm or more are called extra-thick-walled stainless steel pipes. The manufacturing process of stainless steel thick-walled steel pipes is...Read more -
What is an oil casing
Oil casing is an important piece of equipment for oil drilling. Its main equipment also includes drill pipes, core pipes and casings, drill collars, and small-diameter drilling steel pipes. The domestic casing is made of hot-rolled or cold-drawn steel for geological drilling. ...Read more -
Stainless steel and heat-resistant steel heat treatment operations
Cleaning: 1. The workpieces and fixtures should be cleaned of oil, residual salt, paint, and other foreign matter before heat treatment. 2. The fixture used for the first time in the vacuum furnace should be degassed and purified in advance at a vacuum level not lower than tha...Read more -
Duplex stainless steel pipe cold working process
1. The yield strength of duplex stainless steel is twice as high as that of austenitic stainless steel. The deformation amount should be smaller than that of the latter. Appropriate speed and feed rate must be selected during cold rolling to minimize uneven longitudinal wall t...Read more