Dear Mr Richard

Can you tell me , where to get the thermal coefficient for the material ASTM A790 S31803 for the temperature below -29 deg c. I checked with ASME B31.3 table C-3.Not available.I checked with caesar database version 5.10. No value for the temperature.

CAn you tell me how to get it.I am attaching the extract of ASTM A790 S31803 propertty from caesar II vesrion 5.10 herewith

regards

Sha...

You'll have to get this from a vendor. Ask whomever you are going to buy your pipe from.

Thank you very much for the reply and I have another clarification.I found that the thermal coeffcient( in ASME B31.1 and B 31.3) is varying for the same material. Why it so? AS far as material is concern, the thermal coefficient should be same.

If any one knows the reason for it,most welcome.....


regards

Sha....