Austinatic Stainless Steel is one of the most widely used biomaterials for implants process, In the present study chemical and physical treatment have been used on two types of austinatic Stainless, 316L and 310S to compare their corrosion performance on both samples before and after both treatments. Corrosion rate for two samples was decrease with both treatments; polarization is confirming the open circuit potential and weight loss results. Metallography was studied by electron microscopy and X-ray photoelectron spectroscopy (XPS) method to evaluate the effectiveness of the proposed method and to determine the chromium concentration in the surface layer after treatment.