L415N seamless steel pipe is a kind of material in line pipe; the old national standards previously implemented were GB/T9711.1 and GB/T9711.2, and now the new standard of GB/T9711-2017 is uniformly implemented. […]

L415 is the grade in the GB/T 9711-2011 standard and is a pipeline steel. […]

L290 spiral steel pipe is an important structural part of machine tools.
L290 is actually a material of pipeline steel pipe. It is the same as the Q235B we usually use to represent the steel grade code, where L represents the pipe for low-pressure fluid […]

Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling low-carbon structural steel or low-alloy structural steel strip into a tube blank according to a certain helical angle (called forming angle), and then welding the pipe […]

L245 is the domestic standard low-end pipeline steel, the implementation standard is GB/T9711, steel pipe for pipeline transportation system in oil and gas industry. […]