What is P.L. in external pressure table HA-5 of ASME Sec II part D 3

[GD_P]

Hello forum,

I was referring external pressure table for HA-5. for each temp value & 2nd value of A factor, B factor is written as VALUE P.L., for eg., For temp = 20 deg & A fact = 0.00134, B factor = 131 P.L.
What is meaning of this P.L.?. I went to corresponding chart Fig. HA-5, ASME Sec VIII Div UG-28 caln and also the ASME interpretation but couldn't find the its meaning or any expiation related to it.
Any idea?



GD_P

 

[SnTMan]

GD_P, a quick comparison of Chart HA-5 with Table HA-5 makes me think it stands for "Proportional Limit", i.e. where the "A" and "B" data cease to have a linear relation. I see it in Table NFN-15 as well, but didn't find it in any of the other Tables.

I hadn't noticed before either the different formats for the "B" value. Some are numbers less than 1.0 x powers of ten, some are numbers greater than one x powers of ten, some just whole numbers as in HA-5.

Always some new oddball thing about the Code to learn I guess

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[r6155]

See ASME II D Appendix 5
5-1200 STRESS-STRAIN CURVES
……the minimum yield strength, modulus of elasticity, and proportional limit, for materials
where a proportional limit can be identified, shall be reported for each temperature.

Regards

 

[XL83NL]

https://www.eng-tips.com/viewthread.cfm?qid=432307

Huub

 

[GD_P]

Okay, so it stands for Proportional Limit.
Thank you all for your comments.

Always some new oddball thing about the Code to learn I guess , because you use code with an eagle eye

GD_P

 

[SnTMan]

GD_P, you can learn a lot about the Code just by reading it

The problem with sloppy work is that the supply FAR EXCEEDS the demand