Difference Between 304 304L and 321 Stainless Steel
"L" stands for low carbon.
304L grade Low Carbon, typically 0.035% Max
304 grade Medium Carbon, typically 0.08% Max
304 stainless steel and 321 stainless steel belong to the 300 stainless steel...
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...
