ERW Pipe Designations

[mcmidkiff]

What is meant by API 5L X-42 Triple Stenciled Pipe? Is it X-42/46/52? Is single stenciled pipe available and would it have a lower maximum yield value? Is PSL1 vs PSL2 relevant to triple stenciled vs single stenciled?

 

[grampi1]

Triple stencil means it could also be used under other standards like A333 Gr 6 pipe and at least one other.