As per vendor data
Design Temperature is 65DegreeC.
Hoop tensile Modulus at 23degreeC = 20500MPa
Hoop tensile Modulus at 65degreeC = 18040MPa
Axial tensile modulus at 23degreeC = 12000MPa
Axial tensile modulus at 65 degreeC = 9600MPa

My querry to the forum is out of the above two figures which property to be used for the analysis temperature of 65DegreeC.
Ambient temperature is 23DereeC.

As per ASME B31.3/ASME 31.4 flexibility analysis sahll be carried out at 21C.Please guide for GRP stress analysis as per ISO14692-3.
Thanks & regards,