ASME B16.5 flange pressure and temperature rating 1

[engr2GW]

Hi,
In the flange rating table (also attached), the temperature jumps in the 100s, i.e. 285 psi for -20F to 100F, after that, it goes 200F/260psi, 300F/230psi, 400F/200psi, etc.
Can that table be interpolated? OR what is my service temperature is 160F, do I jut take 200F as the temperature or can I interpolate.

As much as possible, do it right the first time...

 

[TGS4]

Your answer in the last paragraph of Section 2.1.

 

[4T4]

confirm your material under which category- Group 1.1
confirm your pressure class..?
160F-coming under the the slab of- 200F.