Čepy, šrouby, matice

BÖHLER L718AMS is a corrosion and heat resistant nickel alloy – precipitation hardenable – in the form of bars, forging and forging stock. High resistance to creep and stress-rupture up to 1300°F (704°C) and oxidation resistance up to 1800°F (982°C). High duty parts and components for oil & gas and CPI applications, components for automotive, gas turbines, aerospace engines, high-speed airframe parts such as disks, buckets, spacers and high temperature bolts and fasteners.

BÖHLERL718 API (UNS N07718) is a high-strength, corrosion-resistant nickel-chromium-iron-molybdenum material with excellent corrosion resistance, especially in H2S and CO2 environments. The alloy is age-hardenable due to the addition of niobium, titanium and aluminium. BÖHLER L718 API is recognised by the oil industry for its simple and cost-effective production in combination with good tensile, fatigue, creep and fracture strength and is used in a wide range of applications in this sector. BÖHLER L718 API has excellent weldability and is resistant to cracking after welding. The material can be used at high temperatures. BÖHLER L718 API is available in the NACE/API 6A CRA versions with a minimum yield strength of 120/140 ksi and also in the high-strength version with 150 ksi. All hardness grades are suitable for sour service and can be used for pressurising and pressure-controlling equipment in corrosive environments. Typical applications include packers, pumps, connectors and fasteners as well as gate valves, throttle spindles, pipework hangers and fire safe valves, but also a wide range of downhole and completion components, nuclear and surface applications.

BÖHLER L925 (UNS N09925) is an age-hardenable nickel-iron-chromium alloy with additions of molybdenum, copper, titanium and aluminium and is designed for high strength and excellent corrosion resistance. The nickel content provides protection against chloride-ion stress corrosion cracking and, in combination with molybdenum and copper, also offers excellent resistance to reducing chemicals. Molybdenum aids resistance to pitting and crevice corrosion. The chromium content of the alloy ensures resistance in oxidising environments. The alloy exhibits a high degree of corrosion resistance in H2S and CO2 environments and is particularly suitable for sour (H2S-containing) crude oil, natural gas, sulphuric acid, phosphoric acid and seawater. BÖHLER L925 offers high strength and maintains this strength even at high temperatures. BÖHLER L925 meets the requirements of NACE MR0175 and API 6A CRA for acidic applications and can be used for pressure-maintaining and pressure-controlling equipment in corrosive environments. Typical applications include packers, safety valves, pumps, hangers, connectors, fasteners and numerous downhole and surface applications.

Korozivzdorná válečková ložiska, šroubové převody a komponenty odolné opotřebení např. pro letecký průmysl, lékařský průmysl, výrobu léčiv, potravinářský průmysl a výrobu plastických hmot.

BÖHLER N685 is a corrosion-resistant steel with molybdenium and vanadium additions in the form of bars, wire, forgings, and forging stock. These products have been used typically for parts in engineering and medical applications requiring hardness up to 58 HRC and resistance to wear, corrosion, and oxidation, but usage is not limited to such applications.

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 high quality, vacuum remelted, corrosion resistant steel for aerospace applications in the form of bars for machining up to 200 mm in diameter. It is a martensitic, precipitation hardenable chromium-nickel-copper steel with high strength and toughness. These products are typically used for parts that require corrosion resistance, high strength up to 600 °F, and exhibit good toughness & strength in the transverse direction of large dimensions. However, use is not limited to such applications. Certain processing methods and operating conditions can cause these products to become susceptible to Stress corrosion cracking.

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.

BÖHLER P511 is a weldable, non-magnetic, austenitic steel with resistance to seawater and intergranular corrosion. This austenitic, stainless Cr-Ni-Mn-Mo-N steel has higher corrosion resistance than Cr-Ni-Mo grades 316, 316L, 317 and 317L and approximately twice the yield strength at room temperature. In addition, BÖHLER P511 has very good mechanical properties at both high and low temperatures. Unlike many austenitic stainless steels, it does not become magnetic when cold-formed or cooled to sub-zero temperatures. Thanks to its excellent notched impact strength at -196 °C (-320 °F), BÖHLER P511 is particularly suitable for low-temperature applications. Typical applications are found in the oil and gas, chemical, fertilizer, paper, textile, food and marine industries for components requiring a combination of excellent corrosion resistance and high strength, e.g. pumps, valves and fittings, fasteners, cables, chains, ship fittings, boat and valve shafts, heat exchanger parts and springs.

BÖHLER P513 is a weldable, non-magnetic, austenitic stainless steel with resistance to seawater and intercrystalline corrosion. It offers the best abrasion resistance of all stainless steels. The corrosion resistance of BÖHLER P513 is better than that of conventional austenitic Cr-Ni steels (type 304), and even better than Cr-Ni-Mo steel (type 316) under standard test conditions against chloride pitting, stress corrosion cracking and crevice corrosion. BÖHLER P513 is an alloy with a high silicon and manganese content and added nitrogen, which also works well at high temperatures around 1800 ºF. Silicon and manganese prevent wear and scuffing even in the annealed condition. Higher strengths can be achieved by cold forming, but this does not significantly improve abrasion resistance. BÖHLER P513 is used in the aerospace, food and pharmaceutical, oilfield, petrochemical, surgical and chemical industries, e.g. for valve stems and valve seats, fastening systems, shielding, chain drive systems, pins, bushings and roller bearings, wear rings and pistons in pumps.

“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.”

Díly a komponenty pro parní a plynové turbíny, jako lopatky, oběžná kola a čepy.

BÖHLER T550 – vysoce žárupevná ocel k zušlechťování. Obvyklá horní hranice teploty pro použití je 580 °C. Díly a komponenty s vyšší pevností za tepla pro tepelné stroje a zařízení s tepelnými stroji, jako např. lopatky a oběžná kola turbín, šrouby, čepy a hřídele.

Díly a komponenty s vyšší pevností za tepla pro tepelné stroje, jako lopatky a oběžná kola turbín.

BÖHLER W300 ISOBLOC je ocel s 5% chromu a odpovídá materiálu 1.2343 ESR (X37CrMoV5-1). Tato nástrojová ocel, vyrobená procesem elektrostruskového přetavování (ESR), vykazuje velmi vysokou houževnatost za tepla, velmi vysokou tvrdost za tepla a odolnost proti tepelným prasklinám. Kombinace těchto vlastností z ní dělá špičkovou ocel v oblasti zápustkového a volného kování, stejně jako při vysokotlakém a nízkotlakém lití. Tento materiál vykazuje také vynikající leštitelnost, a proto se často používá jako materiál pro vstřikovací formy na plasty.

BÖHLER W300 ISODISC je ocel s 5% chromu a odpovídá materiálu 1.2343 (X37CrMoV5-1). Tato běžná nástrojová ocel se vyznačuje dobrou houževnatostí za tepla, vysokou tvrdostí za tepla a odolností proti tepelným trhlinám. Kombinace těchto vlastností z ní činí standardní řešení pro extruzi, kování a nízkotlaké lití. Tento materiál je také k dispozici pod názvem W300 ISOBLOC v přetavené jakosti (ESR) se zlepšenou čistotou, homogenitou a houževnatostí.

BÖHLER W302 ISOBLOC je ocel s 5% chromu a odpovídá materiálu 1.2344 ESR (X40CrMoV5-1). Tato nástrojová ocel, vyrobená procesem elektrostruskového přetavování (ESR), vykazuje velmi vysokou houževnatost za tepla, velmi vysokou tvrdost za tepla a odolnost proti tepelným prasklinám. Kombinace těchto vlastností z ní dělá špičkovou ocel v oblasti zápustkového a volného kování, stejně jako při vysokotlakém a nízkotlakém lití. Tento materiál vykazuje také vynikající leštitelnost, a proto se často používá jako materiál pro vstřikovací formy na plasty.

BÖHLER W360 ISOBLOC je materiál vyráběný procesem elektrostruskového přetavování (ESR) a byl speciálně upraven pro použití na ​​nástroje s vysokou tvrdostí v rozmezí 51-57 HRC. Přestože lze ocel klasifikovat jako 5% chromovou ocel, zvýšený obsah uhlíku a molybdenu ve spojení s nejmodernější výrobní technologií znamená, že BÖHLER W360 ISOBLOC vykazuje velmi dobrou houževnatost a mimořádně dobrou tepelnou odolnost i při vysokých úrovních tvrdosti. Díky těmto vlastnostem je tato ocel ideální volbou pro menší součásti v oblasti tlakového lití (např. vložky forem, jádra, vyhazovací trny atd.). Díky své vysoké odolnosti proti opotřebení je tento materiál často dobrou volbou pro zápustkové kování a volné kování. Díky své vysoké odolnosti proti opotřebení a vynikající houževnatosti se BÖHLER W360 ISOBLOC často používá také při tváření za studena a jako materiál pro vstřikovací formy na plasty. Ocel je také k dispozici jako prášek pro 3D tisk kovů pod značkou BÖHLER W360 AMPO.

BÖHLER W720 VMR není tradiční nástrojová ocel pro práci za tepla, ale spíše ultravysokopevnostní martenzitická ocel. Na rozdíl od tepelně zpracovatelných ocelí dosahuje materiál svých vysokopevnostních vlastností nikoli díky mikrostruktuře s vysokým obsahem uhlíku a sekundárně zpevňujícími karbidy, ale vysrážením intermetalických fází z houževnaté matrice nikl-martenzitu. BÖHLER W720 VMR odpovídá materiálu 1.6358 (X2NiCoMoTi18-9-5) a osvědčila se jako ideální pro mnoho aplikací nástrojové oceli pro práci za studena i za tepla (např. pro extruzní nástroje) až do 450 °C.