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[black friday]

Hi all,
Just looking at doing some thickness testing on a piping system to see if it's had any erosion/corrosion. I would like to take the measurements at elbows located on pump discharge and suction lines. However I don't know the as built thicknesses of the elbows. Is there any way I can find out? I'd ideally like to take readings on the middle of the outside of the elbow, so if anyone has any idea of what the pipe wall thickness might be at that point for schedule 10s DN350 and DN300 SS304L piping that would be much appreciated. Otherwise I'll just have to take this time round as the baseline at this point I guess.
Cheers.

[kkala]

Seeing no answer, following search findings can be useful, even though advice from a piping expert would be welcomed.
A. Reference is made to Perry / 5th edition (1973) / Process plant piping (later editions are expected to comply with it).
1. Table 6.15, Properties of Steel Pipe, gives thickness of 0.180" / 0.188" for 12" / 14" diameter straight pipe, ANSI B36.19, schedule 10S; "tolerances as high as 12.5% are permitted" on thickness.
2. "Dimensions of carbon and alloy steel butt-welding fittings are shown in Table 6-26. Butt-welding fittings are available in the wall thicknesses shown in Table 6.15. Butt welding elbows with short straight pipe extensions at the ends are also available...".
B. Thickness of elbows are expressed in Schedule No, like straight pipes; http://www.alibaba.c...Elbow_Pipe.html '> http://www.alibaba.c...Elbow_Pipe.html .
Γ. Above A-B indicates that butt-welding elbows and straight pipe of same diameter, both ANSI B36.19, Sch 10S, have same thickness. This is verified in http://sketchup.engi...bends-to_3.html '> http://sketchup.engi...bends-to_3.html : all stainless steel ANSI B16.9, Schedule 10S elbows (short or long radius, 90 or 45 deg) of 12" / 14" diameter have 0.180" / 0.188" hickness.
D. In general ebows seem to have same thickness as their pipeline, both having same diameter, standard (e.g. ANSI B36.10, etc), Schedule No. Advise on this point would be welcomed (any exceptions?).