The heat treatments for cold drawn seamless steel pipes
Annealing. Refers to the heat treatment process in which metal materials are heated to an appropriate temperature, maintained for a certain period of time, and then slowly cooled. The main annealing processes include recrystalliza...
2024-03-06
2205 Duplex Stainless Steel
What are duplex stainless steels?The ideal structure of duplex stainless steels is 50% austenite and 50% ferrite, and it also has the advantages of austenitic stainless steel and ferritic stainless steel. Duplex stainless steel is...
2024-03-06
Is the harder the stainless steel pipe, the better?
The hardness of stainless steel pipes is not that the harder the better, but the appropriate hardness needs to be selected according to the specific use environment and requirements.The two main factors that affect the hardness of...
2024-03-05
Standard For Carbon Steel Pipe
Standard for carbon steel pipeAPI 5Lfor use in conveying gas, water, and oil in the natural gas and oil industries, and covers seamless and welded steel line pipe.API 5CTfor casing and tubingASTM A53for Pipe, Steel, Black and Ho...
2024-03-05
Steel Pipe Hot Expansion
Hot expansion in steel pipe processing is a process in which the steel pipe is heated and then expanded or expanded through internal pressure. This process is often used to manufacture Hot Expansion pipes to meet the needs of high...
2024-03-04
Why does galvanized square pipe turn white?
The whitening of galvanized square pipes is due to the oxidation of the zinc layer, forming white powdery zinc oxide. This oxidation is inevitable because the alloy properties of the zinc layer determine that it is more susceptibl...
2024-03-04