Stainless Steel materials called out in the above Table 4 shall be manufactured according to the property class requirementsdefined in ISO 3506, “Mechanical Properties of Corrosion Resistant Stainless Steel Fasteners -– Part 1.”For reference, Stainless Steel A2-50, should be austenitic steel, cold worked, minimum tensile strength of 500 MPa and aminimum stress of 210 MPa at 0.2% permanent strain.For reference, Stainless Steel A2-70, should be austenitic steel, cold worked, minimum tensile strength of 700 MPa and aminimum stress of 450 MPa at 0.2% permanent strain