Alloy 347 is a columbium (niobium)/tantalum stabilized austenitic chromium-nickel stainless steel which was developed to provide an 18-8 type alloy with improved intergranular-corrosion resistance. Alloy 347 has a slightly improved corrosion resistance over other alloys of stainless steel in strongly oxidizing environments as a result of the
steel has been studied extensively by several investiga-tors.5–7 Precipitation of Nb(C,N) particles in the steels was found to be associated with dislocations. The addition of copper to AISI 347 stainless steel increased the resistance to creep deformation and grain
Ultimate Tensile Strength, ksi(Mpa) Chemical Composition Introduction : Stainless steel 347 provides good corrosion resistance and a bit better resistance in strong oxidizing conditions than 321. It is a columbium stabilized austenitic stainless steel. After exposure
SS 347 / SS 347H. Stainless Steel 347 is similar to the 321 stainless steels in that it is often used as a stabilized alternative to Type 304. In the case of 347, however, the stabilizing agent is columbium. This metal intensifies 347's already present ability to withstand intergranular corrosion for maximum capabilities.