Thick wall straight seam steel pipe

Description: Thick walled straight seam steel pipes are steel pipes with an outer diameter to wall thickness ratio of less than 20. Thick walled straight seam steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as structural pipes for automobiles, tractors, and aviation.

The major difference between thick walled straight seam steel pipes and thin-walled straight seam steel pipes lies in the thickness of the steel pipe wall. It is generally believed that a wall thickness/diameter equal to 0.02 is the watershed between thick walled straight seam steel pipes and thin-walled straight seam steel pipes. Thin walled steel pipes with a wall thickness/diameter less than 0.02 and thick walled straight seam steel pipes with a diameter greater than 0.02 are commonly used in pipelines. Thick walled straight seam steel pipes are mostly used in the blank of hollow parts, pressure bearing, and important pipelines.

Thick walled straight seam steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, as well as structural pipes for automobiles, tractors, and aviation.

The commonly used materials for thick walled straight seam steel pipes in China are: 10 # 20mn 42crmo 36CrMo 40Cr 20Cr 15CrMo 12Cr1Mov Q23, Q235B, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, 16Mn, 20 #, 45 #, Q345, L245, L290, X42, X46, X70, X80.