MAX TEMPERATURE LIMITS FOR MATERIALS

[Iyer S]

As a General Guide lines for the "Recommended Max. Temp. Limits" for different materials (Like A105, A182, A387 etc), which is the recommended document to look for.
1. Table A-1M of ASME B 31.3 (Basic allowable stresses in tension for metals)
2. Table 1A of ASME Section II Part D (Max. Allowable stress values S for ferrous materials"

 

[XL83NL]

Hi Iyer, you have specified your post as a question. Do you have a specific question regarding your first post (I couldnt find any), or did you mean to post it as a Helpful Tip?

 

[Iyer S]

As a General Guide lines for the "Recommended Max. Temp. Limits" for different materials (Like A105, A182, A387 etc), which is the recommended document to look for? (THIS IS THE QUESTION)

IN THIS REGARD, FOLLOWING ARE THE TWO DATA / DOCUMENT. KINDLY ADVISE WHICH IS MORE APPRORIATE
1. Table A-1M of ASME B 31.3 (Basic allowable stresses in tension for metals)
2. Table 1A of ASME Section II Part D (Max. Allowable stress values S for ferrous materials

 

[XL83NL]

Well, your questions has 2 ends;
- what design Code are you using? Use whatever that Code prescribes.
- [here comes the fun part] whatever the Code prescribe is a general guide, not taking into account your service conditions. You, as a designer, need to think of a bunch of things which usually will (and almost always shall) limit a materials temperature limit for use. Dont follow the Code's temperature blindly; as an example, duplex stainless steels are listed in the Code for up to 315 °C. In most cases, you dont want to use DSS for services with temperature in excess of say 280-300 °C, or even 250 °C, depending the specific service conditions. Same applies to a lot more materials. The Code is not a cookbook, and the term 'guide' is still to widely-streteched imo, since most Code users dont know how to deal with that.