![]() Molybdenum – to increase corrosion resistance (particularly in sulfite, sulfate, acetic acid and acetate solutions and salt water atmosphere), increase creep resistance, increase strength at elevated temperatures, expand range of passivity and counteract tendency to pit.Manganese – to improve hot working properties, increase yield and tensile strengths (above 2%), partially replace nickel and stabilize the austenitic structure.Silicon – to increase scaling resistance and resist carburizing at high temperatures.Nickel – to stabilize the austenitic structure, improve forming properties, increase ductility, high temperature strength and corrosion resistance (particularly in industrial and marine atmospheres, chemical, food and textile processing industries).Suncor uses this type in some products such as Quick Attach Wedges, however, these parts have a plating to protect against further corrosion. Varieties such as grade 440 find major applications as products that must resist atmospheric oxidation, mildly corrosive chemicals and wet or dry corrosion. The Martensitic grades are hardenable by heat treatment and are magnetic. Ferritic grades are magnetic and nonhardenable. Suncor Stainless does not typically use ferritic grades of stainless steel. They can be softened by “annealing” heat treating. However, they can be magnetic to a small degree, especially in formed parts. The Austenitic grades are generally nonmagnetic and hardenable only by cold working. Grade 304 and 316 are the most important members of the Austenitic family and are the most widely used. Suncor Stainless mainly uses grade 304 and 316 stainless steel from the 300 series. Stainless steel work harden rapidly, heavy positive feeds, sharp tooling, and a rigid set-up should be used.of cut below the work-hardened layer resulting from the previous passes.Stainless steel can be broken down into three major groups – Austenitic, Ferritic and Martensitic The use of chip breakers is advised since the chips can be stringy.To relieve stresses produced in severe forming or spinning, parts should be full annealed or stress relief annealed as soon as possible after forming. Its austenitic structure allows it to be deep-drawn without intermediate annealing, Making this the stainless steel grade of choice in the manufacturing of sinks, hollow-ware and saucepans.Forging can be air cooled without danger of cracking.To forge, heat uniformity to 2100 / 2300 ☏.Two important considerations in producing weld joints in the austenitic stainless steels are: Properties of 304 Alloy Welding Characteristics:Įxcellent welding properties post-weld annealing is not required when welding thin sections. Woven or welded screens for mining, quarrying & water filtration. ![]() Nuts, bolts, screws, and other fasteners in the marine environment.Chemical containers, including for transport.Construction material in large buildings.Automotive and aerospace structural use.Kitchen benches, sinks, troughs, equipment, and appliances.Food processing equipment, particularly in beer brewing, milk processing, and wine making.Specifications : UNS S30403 Applications:Īlloy 304L Stainless Steel is used in a wide variety of home and commercial applications, including: The austenitic stainless steels are also considered to be the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes. Ideal for a wide variety of home and commercial applications, Alloys 304L exhibits excellent corrosion resistance and has a high ease of fabrication, outstanding formability. Alloys 304L is the most versatile and widely used alloy in the stainless steel family. It is the standard “18/8 stainless” that is commonly found in pans and cooking tools. Alloy 304L a T-300 series stainless steel austenitic, which has a minimum of 18% chromium and 8% nickel.
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