ASME B36.19M Stainless Steel Pipe
There are 4 schedule designations for stainless steel pipes conforming to ASME B36.19M: SCH 5S, SCH 10S, SCH 40S, SCH 80S. The nominal wall thicknesses for NPS 14 (DN 350) to NPS 22 (DN 550), inclusive, of SCH 10S; NPS 12 (DN 300) of SCH 40S; and NPS 10 and NPS 12 (DN 250 and DN 300) of SCH 80S are not the same as …