What is tolerance of sch 10 stainless steel pipe?

1.What is the meaning of sch10?

Pipe schedule (sch) is not the wall thickness, it's the wall thickness series.The actual wall thickness of the pipe with same diameter is different in different pipe number. Sch10 is just one type of pipe schedule.

2.What is the actual wall thickness of sch10 in different diameter?

For example, please see the below form:

NPS	1/2	3/4	1	1¼	1½	2
OD	21.3	26.7	33.4	42.2	48.3	60.3
Sch 10	2.11	2.11	2.77	2.77	2.77	2.77

3.What is tolerance of sch 10 stainless steel pipe?

Actually the actual wall thickness of stainless steel pipes can not be meet the standard request. This situation directly causes the wall thickness of stainless steel pipe have tolerance. According to the standard the tolerance must be controlled within +/-12.5% of normal wall thickness for all diameters.