Hello EdStainless! You are right. The elongation A is only 15.3% and the limitation is Min.15%. The P% is 0.05%. Do you think that the p% is too little to form so much steadite shown in the pictures? So it is carbide?
Hello EdStainless! Yes it is non-magnetizable. The mechanical properties are acceptable except the Si% is 4.8%. I cannot find any essay about this kind material in china.
The below link is the microstructure picture. I am not sure whether foreign IP can login. But you can try. Many thanks...
Hello metallurgical wizards!! The material is Austenitic cast iron. The chemical composition limits are C: max.3.0%; Si: 2%~3%; Mn: 6%~7%; Ni: 12%~13%. The delivery condition of the product is unknown (The customer did not give me heat treatment process). The appearance of the micro-structure is...
The appearance is acicular ferrite within the big size pearlite. The fast cool rating and over heating or long soaking time during normalization are the main reasons. If it uniformly and widely appears in the matrix, it damages the impact property severely.
