I'd like to know if is any source of information regarding the phisical properties (e.g. Modulus of Elasticity and exp. coefficient) of EN steels (e.g. 1.4301) at negative temperatures.
EN 13480 have the lower limit at plus 20 deg. with the note that "Values of 20 °C may also be used for temperatures between 0 °C and 20 °C" while Caesar database at minus 40 (how come?).

I'm interested to know values for temperatures lower than minus 40.

Thank you,

Hello Dan

The information is in Annex O of EN 13445. The modulus of elasticity and coefficient of thermal expansion are computed using equations. For each steel Group, a series of constants is given that are simply plugged into the appropriate equation. They do not use tables as in the case of ASME.

Ray,
Thank you very much. This is gold for me. Thank you again.

Best regards,