Schedule ##S designation
Schedule ##S designation
(OP)
When a schedule number has an "S" behind it, it indicates that it is a Stainless (or is it other alloy as well) pipe. An example would be 4" Schedule 10S indicates a 4 inch schedule 10 stainless pipe.
What and/or where is the standard that states that the "S" designator signifies Stainless (or is it more than stainless?)
I have to make the case in order to establish an internal standard that the "S" designator indicates stainless but I need an authoritative source.
rmw
What and/or where is the standard that states that the "S" designator signifies Stainless (or is it more than stainless?)
I have to make the case in order to establish an internal standard that the "S" designator indicates stainless but I need an authoritative source.
rmw





RE: Schedule ##S designation
Johnny Pellin
RE: Schedule ##S designation
RE: Schedule ##S designation
Patricia Lougheed
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RE: Schedule ##S designation
1 Scope
The wall thicknesses for NPS 14 through 22, inclusive (DN 350–550, inclusive), of Schedule 10S; NPS 12 (DN
300) of Schedule 40S; and NPS 10 and 12 (DN 250 and 300) of Schedule 80S are not the same as those of ASME B36.10M. The suffix "S" in the schedule number is used to differentiate B36.19M (stainless steel) pipe from B36.10M(carbon steel) pipe. ASME B36.10M includes other pipe thicknesses that are also commercially available with stainless steel material.
I inserted (carbon steel) and (stainless steel). Otherwise this reflects the phrasing in the ASME B16.39 scope.
RE: Schedule ##S designation
RE: Schedule ##S designation
The 150 pound, 300 pound designations in the 1942 Crane catalog I have do match with the fitting pressure ratings for saturated steam.
RE: Schedule ##S designation