Hriadele

Konštrukčné diely v chemickom priemysle, napr. diely odlučovačov a výmenníkov tepla, diely pre papierenský priemysel, ťažbu ropy a zemného plynu, kompresory a pre odsoľovanie morskej vody.

Pre konštrukčné diely veľmi zaťažené chemickou koróziou, napr. zariadenia chladené morskou vodou a na morských vrtných plošinách. V oblastiach chemického priemyslu, kde pri vyšších tlakoch a teplotách dochádza k zaťaženiu v čistých kyselinách ako aj v kyselinách s obsahom chlóru (hlavne kyselina sírová), organických kyselinách a zmesiach kyselín. V dôsledku zvýšenej odolnosti voči štrbinovej korózii je možné použitie aj všade tam, kde sa počíta s tvorbou povlaku, resp. kde sa nedá konštrukčnými opatreniami zabrániť štrbinám.

H500 – Žiaruvzdorná oceľ

N400 – Nehrdzavejúca oceľ

Všetky druhy strihacích a rezných nástrojov, ktoré vyžadujú vynikajúcu odolnosť proti korózii, ako sú chirurgické rezacie nástroje, príbory, čepele rôznych tvarov s vysokou tvrdosťou a húževnatosťou, taktiež pre komponenty vyžadujúce odolnosť proti opotrebeniu.

BÖHLER N700 is a corrosion-resistant steel in the form of bars, wire and forgings in the solution-annealed condition. It is a martensitic, precipitation-hardenable chromium-nickel-copper steel with high strength and toughness. Further increases in strength can be achieved by cold forming and subsequent precipitation hardening. These products are typically used for parts that require higher corrosion resistance than the usual 13% or 17% chromium steels and high strength up to 316 °C. However, their use is not limited to such applications. Remelting processes are used to improve steel purity and homogeneity. (ESR, PESR, VAR) Certain processing methods and operating conditions can make these products susceptible to stress corrosion cracking. For applications such as bolting where stress corrosion cracking is possible, the product should be aged for at least 4 hours at the highest temperature compatible with the strength requirements, but in no case lower than 552 °C. Typical applications for reactor construction and highly stressed pump parts, springs and ship shafts.

BÖHLER N701 is a corrosion-resistant steel available in the form of bars, wire, and forgings in the solution-annealed condition. It is a martensitic, precipitation-hardenable chromium-nickel-copper steel with high strength and toughness. Further strength enhancements can be achieved through cold working and subsequent precipitation hardening. These products are typically used for parts that require higher corrosion resistance than conventional 13% or 17% chromium steels and high strength up to 316°C. However, their use is not limited to such applications. The vacuum melting process is used to improve steel purity and homogeneity. Certain processing methods and operating conditions can make these products susceptible to stress corrosion cracking. Typical applications include reactor construction, highly stressed pump parts, springs, ship shafts, plastic injection molds and compression molds, and medical instruments.

BÖHLER N709 is a corrosion-resistant steel for engineering applications in the form of bars, wire, and forgings with diameters/thicknesses up to 65 mm in the solution-annealed condition, as well as pre-forging stock of any size. It is a martensitic, precipitation-hardenable chromium-nickel-molybdenum-aluminum steel with high strength and toughness. These products are typically used for parts requiring corrosion resistance, stress corrosion resistance, and high strength up to 316 °C, with good ductility and transverse strength at large cross-sectional dimensions. However, their use is not limited to such applications. Certain processing methods and operating conditions can make these products susceptible to stress corrosion cracking.

This specification covers a corrosion and heat resistant steel in the form of bars, wire, forgings and forging stock. It is an austenitic, precipitation hardenable, iron-nickel-chromium-molydenum-titanium steel of ESR quality. Alloying elements of aluminium and titanium allow this material to undergo precipitation hardening (ageing) through the formation of intermetallic phases. The addition of molybdenum increases the mechanical properties and resistance to creep at high temperatures. These products have been typically used for parts in power generation engineering i.e. gas turbines requiring moderate strength up to 704 °C (1300 °F) and oxidation resistance up to 816 °C (1500 °F), but their use is not limited to such applications.

Súčiastky tepelných hnacích agregátov a zariadení s požiadavkou na vysokú žiaropevnosť, napr. lopatky, kotúče turbín, skrutky, svorníky a hriadele.