Aisi 303 Stainless Steel Chemical Composition

Grade 303 is the most readily machineable of all the austenitic grades of stainless steel.

Aisi 303 stainless steel chemical composition. Whilst the sulphur improves machining it. In addition it has a beneficial effect on mechanical properties and certain types of corrosion. Aisi astm uns 1 4305 x8crnis18 9 303 chemical composition grades c si mn p s cr ni mo ti cu other acx 73 0 10 0 75 1 50 2 00 0 040 0 20 0 30 17 00 19 00 9 00 10 00 1100. The machineable nature of grade 303 is due to the presence of sulphur in the steel composition.

In intermittent service to 760 c and in continuous service to 870 c it provides good oxidation resistance. Composition ranges for 303 grade stainless steel grade c mn si p s cr mo ni se 303 min. Grade 303 is the most readily machineable of all the austenitic grades of stainless steel. Nickel is primarily used to achieve a specific microstructure.

Chemical compositions of aisi astm asme and uns austenitic stainless steel grades introduction aisi astm asme and uns most astm and asme standards list the steel grades by their uns unified numbering system numbers but also make reference where appropriate to the more general aisi american iron and steel institute grade designations. More than 10 000m2 of stainless steel manufactured at nas to clad the national museum of t. Chemical composition astm aisi uns c si mn p s cr ni notes astm a582 a582m 303 uns s30300 0 15 1 00 2 00 0 20 0 15 17 0 19 0 8 0 10 0 free machining stainless steel bars astm a581. Whilst the sulphur improves machining it also causes a decrease in the corrosion resistance and a slight lowering of the toughness.

En 1 4305 aisi 303 euronorm nom. 16 09 2020 the board of directors will propose shareholder remuneration of eur 0 50 per share in cash. Among wrought stainless steels the composition of aisi 303 stainless steel is notable for containing comparatively high amounts of nickel ni and chromium cr. Grade 303 is subject to stress corrosion cracking in chloride containing environments above about 60 c like other common austenitic stainless steels.