Stress value in table s301.3.1

[AliGrailly]

plz see the Table S301.3.1 Generic Pipe Stress Model Input ( b31.3 ) it gives the stress value of material ( A106-B ) at 288 degree = 18.1 ksi or 125 mpa , based on interapolation from table A-1 or A-1M :

500 F 600 F
19 ksi 17.9ksi
result : ~18.45 ksi / 127mpa

what s wrong?

 

[AliGrailly]

different value edition 2008 and 2014 ( previous picture ) ???

Stress value in tension
500 F 550 F 600 F
18.9 ksi 18.1 ksi 17.3 ksi

 

[Dhurjati Sen]

More advanced stress calculation instruments have been used. The differences are very minor though.

DHURJATI SEN
Kolkata, India