Fiber Elongation
Fiber Elongation
(OP)
A dishend is made using hot forming. The material is SA 516 Gr 70 normalized, thickness is 30 mm and fiber elongation exceeds 5 % . Is pwht and mechanical testing required?
Construction code is ASME SEC VIII-1.
Construction code is ASME SEC VIII-1.





RE: Fiber Elongation
RE: Fiber Elongation
RE: Fiber Elongation
RE: Fiber Elongation
The above applies for normalized or as-formed plates. Read the entire UCS-75.
RE: Fiber Elongation
RE: Fiber Elongation
Also let me know what are the requirements after hot forming and where they are addressed?
RE: Fiber Elongation
Directly after hot forming, you can either air cool the steel (as hot formed condition) or hold the steel at 1650 deg F or higher temperature to ensure complete austenitization, air cool, which would result in a normalization heat treatment or you could quench and temper. You have options.