... .4,8K,and so on.StandardASME, ASTM, EN ,BS,GB,DIN, JIS etcMaterial201,202, 304,304L,316,316L,321,310S,410 ... -8 designates the nominal Chromium-Nickel composition). The basic or general purpose 18-8 is 302 with a nominal Carbon content of ... are strongly magnetic whereas Austenitic grades are non-magnetic in general. However, they can be slightly magnetic, depending upon the degree ...