STEEL PROFIL STAINLESS STEEL

STAINLESS STEEL ANGLE BEAM CHANNEL BAR PLATE SHEET PIPE TUBE GRATING EXPANDED & PERFORATED METAL GRIP STRUT AUSTENITIC STAINLESS STEEL Austenitic stainless steel is the most widely used stainless alloy group. The alloy contains a minimum of 16% chromium. Its properties include: Good to excellent corrosion resistance Can be work-hardened Easily machined and fabricated to tight tolerances Smooth surface finish that can be easily cleaned and sterilized Temperature resistance from cryogenic to high heat temperatures Austenitic alloys are the 200 and 300 series of stainless steel. The most common alloys are 304 and 316/ 316L. Type 201 is a general purpose stainless alloy. 304 and 316/ 316L are commonly used for sanitary applications. FERRITIC STAINLESS STEEL Ferriticstainless alloys exhibit lower corrosion resistance than austenitic alloys due to a lower chromium content. These alloys contain between 10.5% and 27% chromium. Their properties include: Good corrosion resistance High strength and toughness Cannot be work-hardened High machinability and workability to tight tolerances Smooth surface finish Some of the 400 series of stainless steel are ferritic alloys, including 409, 410s, 430 and 444. MARTENSITIC STAINLESS STEEL Martensitic alloys contain lower amounts of chromium ( between 12-14% ) and are less corrosion resistant than austenitic and ferritic alloys. Their properties include: Good corrosion resistance Extreme strength and toughness Can be work-hardened High machinability and workability to tight tolerances Smooth surface finish 400 series alloys, including 410, 420 and 440 are martensitic stainless steel alloys. SHEET FINISHES Stainless steel sheet is available in multiple finishes. No. 1 Finish - Hot-rolled, annealed and descaled No. 2D Finish - Hot-rolled, annealed and descaled No. 2B Finish - Cold-rolled, bright finish Bright Annealed Finish – A bright cold-rolled finish retained by final annealing in a controlled atmosphere furnace No. 3 Finish – Intermediate polished finish, usually 120 grit, one or both sides No. 4 Finish- General purpose polished finish, usually 180 grit, one or both sides No. 6 Finish- Dull satin finish, Tampico brushed, one or both sides No. 7 Finish- High luster finish or near mirror ( has some lines) No. 8 Finish- Mirror finish