Production Standard of High Frequency Straight Seam Welded Pipe（ERW)
High frequency straight seam welded pipe can be pided into straight seam high frequency resistance welded steel pipe and straight seam high frequency induction welded steel pipe according to different...
Differences Between Normalizing, Tempering, Annealing and Quenching
The difference between normalizing, tempering, annealing and quenching lies in different processes, different changes in material structure, and different results of changes in material properties.
1...
Seamless Steel Pipe Fire Protection Measures
At present, seamless steel tube construction is increasing, especially in some buildings, the use of seamless steel tube materials is more widespread. Once a fire accident occurs in a building, the fi...
Common Materials of ERW Welded Pipe
Common materials for welded pipes are: Q235A, Q235C, Q235B, 16Mn, 20 #, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, etc.
The blank used for welded steel pip...
Anti-corrosion Process of Oil Casing Pipe
Corrosion of oil casing is related to factors such as partial pressure of corrosive gas, ambient temperature, water content, salinity, flow rate, pH value and so on. So what are the anti-corrosion pro...
Advantages of ERW Straight Seam Welded Pipe
ERW steel pipe (ERW steel pipe) is generally used as a wire sleeve in the power industry. Performance characteristics: 100% ultrasonic testing of the base material to ensure the inherent quality of th...
