Company News
-
What is the difference between 2205 duplex stainless steel pipe and 304 stainless steel pipe
1. Compared with 304 stainless steel pipe, the advantages of duplex stainless steel pipe are as follows: (1) The yield strength is more than double that of ordinary austenitic stainless steel, and it has sufficient plastic toughness required for forming. The wall thickness of ...Read more -
What is the difference between spiral steel pipe and steel coil pipe
Both spiral steel pipes and steel coiled pipes belong to welded steel pipes, and the production processes of the two are very different. Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, often warmly extruded, and welded by the automatic d...Read more -
Surface treatment method of anti-corrosion spiral steel pipe
1. The surface of the anti-corrosion spiral steel pipe is cleaned with solvent and emulsion, which can remove the organic matter on the surface of the spiral steel pipe, but it cannot remove the surface rust, oxide scale, welding flux, etc., so cleaning can only be used as an ...Read more -
Quenching technology of straight seam welded steel pipe
The surface quenching and tempering heat treatment of straight seam welded steel pipe is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Vickers hardness tester c...Read more -
Product advantages of anti-corrosion steel pipe
1. Combine the mechanical strength of steel pipes and the corrosion resistance of plastics; 2. The outer wall coating is more than 2.5mm, resistant to scratches and bumps; 3. The friction coefficient of the inner wall is small, 0.0081-0.091, which reduces energy consumption; 4...Read more -
Description of Boiler Tube Grades & Standards
CARBON STEEL SA178 Carbon steels show mild corrosion resistance and fair strength up to 1000F. However, their usage above 800F must take into account the susceptibility to graphitization. Graphitization has not been a significant problem in thicknesses encountered in boiler tu...Read more