integridadmecanica
Mechanical
Dear colleagues,
I am performing a remaining life assessment of a heater tube made of in Carbon steel A 106, the normal temperature is around 320ºC so is not in the creep range but methallographic inspection has shown an ASTM grain size growth from 12 to 10. I would like to know if someone knows what the ASTM G size limit is? 6 or 5? in wich grain size start to appear important degradation?
Regards
I am performing a remaining life assessment of a heater tube made of in Carbon steel A 106, the normal temperature is around 320ºC so is not in the creep range but methallographic inspection has shown an ASTM grain size growth from 12 to 10. I would like to know if someone knows what the ASTM G size limit is? 6 or 5? in wich grain size start to appear important degradation?
Regards