Views:29 Author:Site Editor Publish Time: 2019-07-15 Origin:Site
Material of L290N
This is pipeline steel transport for oil,gas,liquid etc.
It is equals to the steel of API 5L GR.X42N In API 5L standard new eddition 46
L means: pipeline steel
290 means: minimum yield strength 290MPa
N means: normalized heat treatment state.
Refer: GB/T 9711-2011 Oil and Gas Industry Pipeline for pipeline transportation system
The chemical composition and mechanical properties of L290N are shown in the figure below: