Tensile Stress-Strain Results for 304L and 316L Stainless Steel Plate at Temperature

摘要

The Idaho National Laboratory is conducting moderate strain rate (5 to 200 per second) research on stainless steel materials in support of the Department of Energy's National Spent Nuclear Fuel Program. For this research, strain rate effects are characterized by comparison to quasi-static tensile test results. Considerable tensile testing has been conducted resulting in the generation of a large amount of basic material data expressed as engineering and true stress-strain curves. The purpose of this paper is to present the results of quasi-static tensile testing of 304L and 316L stainless steels in order to add to the existing data pool for these materials and make the data more readily available to other researchers, engineers, and interested parties. Standard tensile testing of round specimens in accordance with ASTM procedure A 370-03a was conducted on 304L and 316L stainless steel plate materials at temperatures ranging from -20DGF to 600DGF. Two plate thicknesses, eight material heats, and both base and weld metal were tested. Material yield strength, ultimate strength, ultimate strain, fracture strength, fracture strain and reduction in area were determined. Engineering and true stress-strain curves to failure were developed and comparisons to ASME Code minimums were made. The procedures used during testing and the typical results obtained are presented in this paper.