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Stainless Steel is a standard term given to a group of corrosion resistant alloy Steels containing 10.5% or more chromium. All Stainless Steels have high levels of corrosion resistance. This resistance to corrosion is due to a naturally occurring chromium rich oxide layer formed on the surface of the Steel. Although incredibly thin, this invisible, inert layer is tightly adherent to the Stainless Steel and extremely protective in a wide range of corrosive environments.
EN 1.4305 grade 303 Stainless Steel provides the best machinability among all the austenitic Stainless Steels.
303 gains its improved machining and galling characteristics by the addition on sulphur, however this addition also lowers the stainless steels corrosive resistance and reduces its toughness slightly when comparing it to 304 Stainless Steel.
EN 1.4301 grade 304 Stainless Steel 18/8 (18% chromium 8% nickel) is the most widely used of all Stainless Steel types. Due to its composition, corrosion and heat resistance and its mechanical properties, grade 304 is used in all fields of industrial, commercial and domestic manufacturing.
Brass is an alloy that is comprised of Copper and Zinc. Different grades of Brass will also contain elements of other alloys that will provide different properties. Brass has a high tensile strength, high corrosion resistance and is suitable to be hot forged.