Maraging oceli jsou vysokopevnostní, houževnaté oceli typu Fe-18% Ni-Co-Mo. Pevnosti nad 2 000 MPa lze dosáhnout jednoduchým tepelným zpracováním s téměř žádnými rozměrovými změnami. Tyto oceli se používají v lehkých konstrukcích v leteckém a kosmickém průmyslu a ve strojírenství a výrobě nástrojů, například na upevňovací prvky, hřídele, pružiny a části ozubených kol.
Maragingové oceli jsou ultravysokopevnostní oceli typu Fe-18% Ni-Co-Mo, které dosahují pevnosti přes 2000 MPa při jednoduchém tepelném zpracování s nízkou deformací. Tyto oceli však nejsou korozivzdorné.
Maragingové oceli se taví ve vakuové indukční peci a poté se přetavují ve vakuové obloukové peci kvůli jejich vysokému obsahu legujících látek, zejména vysokému obsahu titanu a hliníku. Mezi aplikace těchto ocelí patří strojírenství, např. upevňovací prvky, hřídele, pružiny, ozubená kola a lehké konstrukce, např. v leteckém průmyslu, ale také pro součásti v nástrojích a obráběcích strojích.
BÖHLER V250 is a premium aircraft-quality, maraging alloy steel in the form of bars, forgings and stock for forging. In contrast to heat treatable steels its outstanding tensile properties are not due to a hardened structure with relatively high carbon content, but to precipitation of intermetallic phases from a ductile nickel bearing matrix containing almost no carbon. These products have been used typically for parts requiring through hardening, without quenching, to a minimum yield strength of 247 ksi (1700 MPa) and where such parts may require welding during fabrication, but usage is not limited to such applications. E.g highly stressed components for the aircraft and rocket industries.
Číst víceBÖHLER V250AMS is a premium aircraft-quality, maraging alloy steel in the form of bars, forgings and stock for forging up through 10 inches (254.00 mm) inclusive in diameter or least distance between parallel sides. In contrast to heat treatable steels its outstanding tensile properties are not due to a hardened structure with relatively high carbon content, but to precipitation of intermetallic phases from a ductile nickel bearing matrix containing almost no carbon. These products have been used typically for parts requiring through hardening, without quenching, to a minimum yield strength of 240 ksi (1655 MPa) and where such parts may require welding during fabrication, but usage is not limited to such applications. E.g highly stressed components for the aircraft and rocket industries.
Číst víceBÖHLER V300 covers a premium aircraft-quality, maraging alloy steel in the form of bars, forgings and stock for forging up through 10 inches (254.00 mm) inclusive in diameter or least distance between parallel sides. In contrast to heat treatable steels its outstanding tensile properties are not due to a hardened structure with relatively high carbon content, but to precipitation of intermetallic phases from a ductile nickel bearing matrix containing almost no carbon. These products have been used typically for parts requiring through hardening, without quenching, to a minimum yield strength of 270 ksi (1862 MPa) and where such parts may require welding during fabrication, but usage is not limited to such applications. E.g highly stressed components for the aircraft and rocket industries.
Číst víceHighly stressed components for the aircraft and rocket industries. Constructional and tool steel for hot and cold working tools used for long-time service at temperatures up to approx. 450°C. Machine tools, Pressure vessels, Gearwheels (nitrided), Screws, Precision parts, Tools for hydrostatic presses, Cold extrusion tools, Cold heading and embossing tools, Plastic moulds, Die casting tools for aluminium and zinc alloys, Hot pressing tools.
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