Posts by wilsonpipeline
The Principle of Seamless Pipe Passivation
The mechanism of seamless steel pipe (smls) passivation can be explained by film theory, that is, it is believed that passivation is due to the action of metal and oxidation properties. When it acts, ...
Is Seamless Pipe more Expensive?
Seamless pipes (smls pipe) are more expensive than welded pipes, but they are stronger. The ASME rated working pressure of seamless steel pipes is usually 20% higher than that of welded steel pipe pil...
Advantages of High Frequency Welded Pipe
High-frequency welded pipes (ERW) need to go through a series of processes from raw materials to finished products. The production process flow mainly depends on the product variety. The completion of...
Hot-dip Galvanized Steel Pipe vs Cold-dip Galvanized Steel Pipe
Hot-dip galvanized steel pipe: The hot-dip galvanized steel pipe is first pickled on the steel parts. In order to remove the iron oxide on the surface of the steel parts, after the pickling, it is pas...
Straightening Processing Technology for Thick-walled Seamless Steel Pipe
Thick-walled seamless steel pipes are widely used in vehicles, airlines, crude oil, chemical plants, engineering construction, heating furnaces, military and other units, and have a major influence in...
Grade N80 Steel Casing Pipe
API 5CT Grade N80 oil casing pipe is a high-strength and high-toughness carbon seamless steel pipe. The commonly used methods are: quenching and tempering (including direct quenching + tempering after...
What is shot peening
Shot peening is a process that uses a high-speed rotating impeller to shoot the shot out at high speed, hit the workpiece surface, and clean or strengthen the workpiece surface. The materials us...
the Joint sealing of flange – why 304 material is not recommended for bolts?
Joint sealing of flange – why 304 material is not recommended for bolts?In flange joint sealing, when carbon steel flanges or stainless steel flanges are equipped with 304 material bolts, leakage prob...
The industrial metal pipe fittings industry market prospects
The downstream applications of industrial metal pipe fittings are extensive and involve the major industries of the national economy. Among them, petrochemical, nuclear power, thermal power, shi...
Pressing procedure for butt welded elbow pipe fittings
Butt welding elbow pipe fittings first use CAD skills to design a variety of different diameters, and within 180 degrees, different raw materials butt welding elbow pipe fittings with tube core ...