stainless steel 304
1-1/2" Sch40S = what is wall thickness?
what is the differents with SCH40 and sch40s?
1-1/2" Sch80 = what is wall thickness?
2" Sch40 = what is wall thickness?
2" Sch80 = what is wall thickness?
Thanks

A simple Google search will reveal the answers (http://www.engineeringtoolbox.com/steel-pipes-dimensions-d_43.html). The difference between the regular and "S" schedules is regular steel versus stainless steel.

http://www.engineeringtoolbox.com/steel-pipes-dimensions-d_43.html