1. API, 1996. Calculation of Heater Tube Thickness in Petroleum Refineries, API Standard 530, American Petroleum Institute, Washington.
2. API, 2000. Fitness-For-Service, API Recommended Practice 579, first ed. American Petroleum Institute, Washington, DC
3. API 653, 2001. Tank Inspection, Repair, Alteration, and Reconstruction, API Standard 653, third ed. American Petroleum Institute, Washington, D.C.
4. ASME, 2001. Boiler and Pressure Vessel Code, American Society of Mechanical Engineers, New York.
5. Brittle Fracture of Steel;Biggs,1960