-
What are the advantages of plastic-coated composite steel pipe
Plastic-coated composite steel pipe is based on a welded steel pipe and seamless steel pipe, and the inner and outer walls are coated with epoxy resin or polyethylene powder. It is an anti-corrosive, corrosion-resistant, non-toxic, and non-radiation green environmental protection pipe, which is u...Read more -
Basic requirements for the appearance of welds of straight seam steel pipes
1. The surface of the welding joint: A. Cracks, lack of fusion, pores, slag inclusion, and splashes are not allowed. B. The weld surface of pipes whose design temperature is lower than -29 degrees, stainless steel and alloy steel pipes with a greater tendency to hardening shall not have undercut....Read more -
Control Measures for Submerged Arc Steel Pipe Welding
Submerged arc steel pipe has become the steel pipe of large-scale oil and gas transportation projects at home and abroad due to its large wall thickness, good material quality and stable processing technology. In large-diameter submerged arc steel pipe welded joints, the weld seam and heat-affect...Read more -
Analysis of the difference between seam stainless steel pipe and seamless stainless steel pipe
4. Pipe strength The strength of the pipeline depends on the alloy composition, so the seamless stainless steel pipe and the seamed stainless steel pipe containing the same alloy and the same heat treatment are essentially the same in strength. After the tensile test and three-dimensional vibrati...Read more -
Eight characteristics of 3PE anti corrosive steel pipe
1. The polyethylene material used in 3pe steel pipes makes the pipes have a long service life, large molecular weight, good stability, and aging resistance. Under normal working temperature and pressure, the service life can be guaranteed for more than 50 years. 2. The corrosion-resistant polyeth...Read more -
Galvanized steel pipe classification
1. Hot-dip galvanized pipe. Let the molten metal react with the iron matrix to produce an alloy layer, allowing the matrix and coating to bond. Hot-dip galvanizing must first pickle the steel pipe to remove the iron oxide on the surface of the steel pipe. After pickling, it must be cleaned with a...Read more -
The purpose of preheating the pipe before welding the spiral steel pipe
The purpose of preheating before welding is as follows: (1) Preheating can slow down the cooling rate after welding, allowing hydrogen to diffuse and escape in the weld metal, thus avoiding cracking caused by hydrogen. It can also reduce the degree of hardening of welds and heat-affected zones to...Read more -
Main use and process characteristics of galvanized steel pipe
The main purpose of galvanized steel pipe Galvanized pipes are usually used to loosen gas and heating. Galvanized pipes are also used as water pipes. However, after a few years of use, a large amount of rust will be generated. The yellow water that flows out will not only contaminate sanitary war...Read more -
Anti-corrosion countermeasures of oil casing
1. To make sure that the water quality meets the standards, and strictly monitor and manage the water quality. Implement cleaning and separate injection, strengthen the cleaning of main water pipelines, ensure that the water quality in the station and the bottom of the well meets the standard, an...Read more -
Stainless steel pipe welding process method A
High-frequency induction welding In high-frequency contact welding and high-frequency induction welding, the equipment that provides current and the equipment that provides squeezing force are independent of each other. In addition, both methods can use a magnetic rod, which is a soft magnetic el...Read more -
What are the classifications of stainless steel pipes
1. Stainless steel pipes are classified by material Divided into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, as well as bimetallic composite pipes, plating and coating pipes to save...Read more -
Production process of spiral steel pipe
(1) Raw materials are strip steel coils, welding wires, and fluxes. Strict physical and chemical tests are required before investment. (2) Butt joint of strip steel head and tail, adopt single wire or double wire submerged arc welding, after coiling into steel pipe, adopt automatic submerged arc ...Read more
China's most trusted manufacturers of Stainless Steel Pipes & Tubes.
- Email Support info@hunantube.com
- Call Support +86-0731-88672086