An evaluation is presented for variations in tensile and creep properties of types 304 and 316 stainless steels. United States data and data from two foreign countries, Japan (NRIM data) and Britain (BSCC data), were evaluated for different products separately and for the combined data on all products. United States data were shown to contain the largest variations in both tensile and creep properties, with Japanese data the least. For a given country no distinction could be made in variations in tensile properties of types 304 and 316 stainless steels but variations in standard error of estimate (SEE) for all creep properties analyzed were significantly lower for type 316 stainless steel than corresponding variations in creep properties of type 304 stainless steel. The data from each of these countries showed the same creep rupture strength (at 104 hr) for type 316 stainless steel; this was not true for type 304 stainless steel. Results of the analysis performed in this paper showed that the U. S. and foreign data on types 304 and 316 stainless steels could possibly be combined for the determination of design stress intensity limits.

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