Calculation of Heater-tube Thicknessin Petroleum Refineries - 7th Edition

Abstract

The limiting design metal temperature for TP304L, TP316L, and TP317L have been decreased to 593 °C/1100 °F to match WRC 541 maximum temperatures for designs governed by creep properties. The allowable stress curves for TP304L, TP316L, and TP317L have been extended to 816 °C/1500 °F to match WRC 541 data for short-term exposure. — The limiting design metal temperatures for 800HT and HK40 have been increased to 1010 °C/1850 °F to match WRC 541. The limiting design metal temperature is the upper limit of the reliability of the rupture strength data, and the stress rupture curves are intended for use where the design stress is greater than 6.9 MPa (1 ksi). These factors shall be considered when furnace tubes are designed. Topics stress;stress curve;stress thickness;tube;design stress.