A controlled mixture of hydrogen to nitrogen gases 1:1 was used to investigate the role of rf Plasma surface engineering a standard austenite stainless steel AISI304L prepared by electro slag re melting process for nuclear power plant applications. The rf plasma surface engineering process was performed for half an hour inside a quartz plasma reactor tube at stable gas pressure and water cooling rate. The study includes a comparison between the nitrided austenite H304L stainless steel sample and other two untreated austenite standard stainless steel samples AISI316L and AISI304L. Great enhancement was achieved in surface microhardness, physical abrasive wear properties, good absorption for slow neutrons and comparable gamma ray attenuation properties for the H304L nitrided austenite stainless steel sample when compared to AISI316L and AISI304L standard austenite stainless steel samples.