Slitiny na bázi niklu

Slitiny na bázi niklu se používají jako vysokoteplotní a chemicky odolné materiály. Chemickou odolnost určují především legující prvky chrom, molybden a wolfram. Maximální tepelné odolnosti lze dosáhnout precipitačním vytvrzením s hliníkem, niobem a titanem.

Hlavní složkou slitin na bázi niklu je prvek nikl. Slitiny na bázi niklu se používají hlavně jako vysokoteplotní materiály a jako chemicky odolné materiály, přičemž odolnost vůči vysokým provozním teplotám a okolním podmínkám je určena zejména legujícími prvky, jako je chrom, molybden, kobalt, wolfram a hliník. Legující prvky jsou na jedné straně zodpovědné za vytvrzení austenitického roztoku niklu, ale na druhé straně se používají také pro precipitační vytvrzování a zpevněování částic. V závislosti na požadovaných vlastnostech obsahují slitiny na bázi niklu často více než deset různých legujících prvků.

Trvalé provozní teploty slitin na bázi niklu dosahují až 1 100 °C.
Používají se zejména slitiny nikl-železo, nikl-železo-chrom, nikl-chrom, nikl-molybden-chrom a nikl-chrom-kobalt. Většina niklových slitin je klasifikována podle mezinárodních norem.
Niklové materiály se používají v široké škále aplikací, zejména v:
– v chemickém průmyslu pro procesní inženýrství, jako jsou kondenzační trubky, kotle, výměníky tepla,
ventily a čerpadla
– v leteckém průmyslu, např. motory, turbíny, spojovací prvky
– v automobilovém průmyslu, např. technologie ventilů, katalyzátory
– v komponentách odolných vůči mořské vodě pro odsolovací zařízení a stavbu lodí
– ve výrobě elektrické energie, např. generátory elektráren
– v těžbě ropy a plynu, např. vrtné nástroje
– v ochraně životního prostředí a nakládání s odpady, např. v zařízeních na odsiřování spalin,
spalovnách odpadu, odsolovacích zařízeních mořské vody atd.

Superslitiny na bázi niklu označují slitiny se speciálním složením, které se vyrábějí speciálně pro vysokoteplotní aplikace (např. v konstrukci motorů).
Hlavní výhodou superslitin na bázi niklu je jejich pevnost v tečení a únavová pevnost při vysokých teplotách. Od přibližně 550 °C jsou v tomto ohledu lepší než vysokoteplotní oceli. Precipitační zpevnění intermetalickými fázemi umožňuje použití superslitin na bázi niklu až do teplot 1 100 °C. Vlastnosti jsou obecně ovlivněny tečením a únavovou pevností superslitin na bázi niklu. Vlastností se obvykle dosahuje legováním s hliníkem a nebo titanem a niobem. Výsledné precipitáty Ni3[Al,Ti,Nb] nabývají při vyšším obsahu slitiny charakteristické blokové struktury. Tečení je navíc zabráněno termodynamicky řízenými sítěmi hranic zrn karbidů M23C6 a dalších fází.
Vzhledem k tomu, že korozní odolnost slitin je také velmi vysoká díky tvorbě velmi husté oxidové vrstvy, jsou tyto materiály první volbou pro konstrukční materiály v plynových turbínách elektráren a v leteckých turbínách.

V závislosti na požadavcích a legování se slitiny niklu přednostně taví na vzduchu v elektrických obloukových pecích, někdy také ve vakuových indukčních tavicích procesech, zejména pokud obsahují vysoký obsah prvků afinních ke kyslíku, např. Ti a Al. Obvykle následuje elektrostruskové přetavování (ESU) nebo přetavování ve vakuové obloukové peci (VLBO) pro zlepšení homogenity a stupně čistoty. Chemické složení obecně často vyžaduje úzká teplotní okna pro tváření za tepla a tepelné zpracování.

Související produkty

  • BÖHLER L004

    BÖHLER L004 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum alloys with very low carbon, iron and silicon content and has good corrosion resistance, even at elevated temperatures. The combination of chromium with a high molybdenum content gives BÖHLER L004 exceptional resistance to a wide range of chemical media: e.g. contaminated, reducing mineral acids and good resistance under reducing and oxidizing conditions, e.g. hot, contaminated media such as sulphuric acid, nitric acid, dry chlorine, formic acid, acetic acid, solvents, chlorine and chloride-containing media. BÖHLER L004 exhibits a significantly reduced tendency to form precipitates in the temperature range between 650 and 1,040 °C due to the alloy composition. This improves resistance to intergranular corrosion. Due to the high nickel content, the material is practically insensitive to chloride-induced stress corrosion cracking even in hot chloride solutions. Due to its excellent thermal stability, the alloy can be welded without any problems and is generally used in the welded condition. Suitable for pressure vessels with wall temperatures from-196°C to 400°C.

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    • Ropa a plyn / CPI
    • EN NiMo16Cr16Ti
    • Market grade Alloy C4
    • SEL 2.4610
    • UNS N06455
    • ASTM B574
    • DIN 17752
    • Others VdTÜV WB424

    BÖHLER L004 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum alloys with very low carbon, iron and silicon content and has good corrosion resistance, even at elevated temperatures. The combination of chromium with a high molybdenum content gives BÖHLER L004 exceptional resistance to a wide range of chemical media: e.g. contaminated, reducing mineral acids and good resistance under reducing and oxidizing conditions, e.g. hot, contaminated media such as sulphuric acid, nitric acid, dry chlorine, formic acid, acetic acid, solvents, chlorine and chloride-containing media. BÖHLER L004 exhibits a significantly reduced tendency to form precipitates in the temperature range between 650 and 1,040 °C due to the alloy composition. This improves resistance to intergranular corrosion. Due to the high nickel content, the material is practically insensitive to chloride-induced stress corrosion cracking even in hot chloride solutions. Due to its excellent thermal stability, the alloy can be welded without any problems and is generally used in the welded condition. Suitable for pressure vessels with wall temperatures from-196°C to 400°C.

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  • BÖHLER L022

    BÖHLER L022 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum-tungsten alloys with extremely low carbon and silicon contents. Good resistance to wet media, e.g. sulphuric acid, nitric acid, acid mixtures of sulphuric acid and oxidising acids with chloride ions. Recommended for use in the presence of strong oxidising agents such as iron(III) and copper(II) chlorides, chlorine gas, formic acid, acetic acid, seawater and other salt solutions. High resistance to crevice, pitting and stress corrosion cracking at elevated temperatures under oxidising and reducing conditions. Used in environmental engineering, e.g. in agitators, heat exchangers and spray systems in flue gas cleaning plants and in waste water treatment plants, evaporation plants in chemical process engineering, in chlorine bleaching plants and plants for the production of chlorine gas and hydrogen chloride, e.g. butterfly valves, gate valves, pipelines and centrifuges. Suitable for pressurised containers with wall temperatures from-196°C to 400°C. Due to its good thermal stability, BÖHLER L022 can generally be used in the welded condition without subsequent heat treatment.

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    • Ropa a plyn / CPI
    • EN NiCr21Mo14W
    • Market grade Alloy C22
    • SEL 2.4602
    • UNS N06022
    • ASTM B574
    • Others NACE MR0175 / ISO 15156

    BÖHLER L022 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum-tungsten alloys with extremely low carbon and silicon contents. Good resistance to wet media, e.g. sulphuric acid, nitric acid, acid mixtures of sulphuric acid and oxidising acids with chloride ions. Recommended for use in the presence of strong oxidising agents such as iron(III) and copper(II) chlorides, chlorine gas, formic acid, acetic acid, seawater and other salt solutions. High resistance to crevice, pitting and stress corrosion cracking at elevated temperatures under oxidising and reducing conditions. Used in environmental engineering, e.g. in agitators, heat exchangers and spray systems in flue gas cleaning plants and in waste water treatment plants, evaporation plants in chemical process engineering, in chlorine bleaching plants and plants for the production of chlorine gas and hydrogen chloride, e.g. butterfly valves, gate valves, pipelines and centrifuges. Suitable for pressurised containers with wall temperatures from-196°C to 400°C. Due to its good thermal stability, BÖHLER L022 can generally be used in the welded condition without subsequent heat treatment.

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  • BÖHLER L059

    BÖHLER L059 (2.4605/N06059) is a nickel-chromium-molybdenum material with high mechanical strength and excellent corrosion resistance. Due to its particularly low carbon and silicon content, the material does not tend to form precipitates at grain boundaries during welding or hot forming. BÖHLER L059 offers excellent corrosion resistance, both under oxidizing and reducing conditions, high resistance to chloride-induced pitting and crevice corrosion as well as insensitivity to stress corrosion cracking and resistance to mineral acids, especially sulphuric/hydrochloric acid mixtures. The alloy is therefore suitable for a wide range of applications in the chemical, petrochemical, energy and environmental technology sectors in chloride-containing media, in particular plant components in the pharmaceutical industry and also agitators for flue gas desulphurization plants (FGD) in fossil-fired power plants and waste incineration plants, components for seawater and concentrated brines, equipment and components for geothermal and sour gas applications, reactors for acetic acid and acetic anhydride as well as hydrofluoric acid and sulphuric acid coolers.

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    • Ropa a plyn / CPI
    • EN NiCr23Mo16Al
    • Market grade Alloy 59
    • SEL 2.4605
    • UNS N06059
    • ASTM B564
    • DIN 17752
    • Others NACE MR0175 / ISO 15156

    BÖHLER L059 (2.4605/N06059) is a nickel-chromium-molybdenum material with high mechanical strength and excellent corrosion resistance. Due to its particularly low carbon and silicon content, the material does not tend to form precipitates at grain boundaries during welding or hot forming. BÖHLER L059 offers excellent corrosion resistance, both under oxidizing and reducing conditions, high resistance to chloride-induced pitting and crevice corrosion as well as insensitivity to stress corrosion cracking and resistance to mineral acids, especially sulphuric/hydrochloric acid mixtures. The alloy is therefore suitable for a wide range of applications in the chemical, petrochemical, energy and environmental technology sectors in chloride-containing media, in particular plant components in the pharmaceutical industry and also agitators for flue gas desulphurization plants (FGD) in fossil-fired power plants and waste incineration plants, components for seawater and concentrated brines, equipment and components for geothermal and sour gas applications, reactors for acetic acid and acetic anhydride as well as hydrofluoric acid and sulphuric acid coolers.

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  • BÖHLER L075

    L075 je slitina niklu, chromu a železa s přísadou titanu pro komponenty pro parní a plynové turbíny

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    • Market grade Alloy 75
    • SEL 2.4630
    • UNS N06075

    L075 je slitina niklu, chromu a železa s přísadou titanu pro komponenty pro parní a plynové turbíny

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  • BÖHLER L200

    BÖHLER L200 is a technically pure nickel alloy with at least 99% nickel and a low carbon content. This alloy combination suppresses harmful precipitation, e.g. of graphite, and enables application temperatures of over 300°C to around 450°C. The material offers excellent ductility and corrosion resistance, in particular resistance in many alkaline and acidic solutions, e.g. cooling brines, soaps, fatty acids, fruit acids, phenol, caustic soda and neutral salt solutions, dry chlorine gas and hydrogen chloride, bromine and fluorine (CFC production) and other reducing and oxidising media. The main areas of application for the BÖHLER L200 alloy are plant and tank construction in the food, chemical and petrochemical industries, the transport of chemical products and electrical and electronic components, such as electrode contacts in batteries, current arresters in alkaline fuel cells and electrodes for hydrogen production by electrolysis.

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    • EN LC-Ni99
    • Market grade Alloy 201
    • SEL 2.4068
    • UNS N02201
    • ASTM B160
    • DIN DIN 17740

    BÖHLER L200 is a technically pure nickel alloy with at least 99% nickel and a low carbon content. This alloy combination suppresses harmful precipitation, e.g. of graphite, and enables application temperatures of over 300°C to around 450°C. The material offers excellent ductility and corrosion resistance, in particular resistance in many alkaline and acidic solutions, e.g. cooling brines, soaps, fatty acids, fruit acids, phenol, caustic soda and neutral salt solutions, dry chlorine gas and hydrogen chloride, bromine and fluorine (CFC production) and other reducing and oxidising media. The main areas of application for the BÖHLER L200 alloy are plant and tank construction in the food, chemical and petrochemical industries, the transport of chemical products and electrical and electronic components, such as electrode contacts in batteries, current arresters in alkaline fuel cells and electrodes for hydrogen production by electrolysis.

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  • BÖHLER L276

    BÖHLER L276 is a nickel-chromium-molybdenum alloy with universal corrosion resistance unmatched by any other alloy. It has outstanding resistance to a wide variety of chemical process environments including ferric and cupric chlorides, hot contaminated mineral acids, solvents, chlorine and chlorine contaminated (both organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, sea water and brine solutions and hypochlorite and chlorine dioxide solutions. BÖHLER L276 also resists formation of grain boundary precipitates in the weld heat affected zone making it useful for most chemical processes in the as-welded condition. BÖHLER L276 has excellent resistance to pitting and stress corrosion cracking. Some typical applications of BÖHLER L276 include equipment components in chemical and petrochemical organic chloride processes and processes utilizing halide or acid catalysts. Other industry applications are pulp and paper (digesters and bleach areas), scrubbers and ducting for flue gas desulfurization, pharmaceutical and food processing equipment.

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    • Ropa a plyn / CPI
    • EN NiMo16Cr15W
    • Market grade Alloy 276
    • SEL 2.4819
    • UNS N10276
    • ASTM B574
    • DIN 17752
    • Others VdTÜV WB400

    BÖHLER L276 is a nickel-chromium-molybdenum alloy with universal corrosion resistance unmatched by any other alloy. It has outstanding resistance to a wide variety of chemical process environments including ferric and cupric chlorides, hot contaminated mineral acids, solvents, chlorine and chlorine contaminated (both organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, sea water and brine solutions and hypochlorite and chlorine dioxide solutions. BÖHLER L276 also resists formation of grain boundary precipitates in the weld heat affected zone making it useful for most chemical processes in the as-welded condition. BÖHLER L276 has excellent resistance to pitting and stress corrosion cracking. Some typical applications of BÖHLER L276 include equipment components in chemical and petrochemical organic chloride processes and processes utilizing halide or acid catalysts. Other industry applications are pulp and paper (digesters and bleach areas), scrubbers and ducting for flue gas desulfurization, pharmaceutical and food processing equipment.

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  • BÖHLER L400

    Technická zařízení pro práci na moři, jako například tepelné výměníky a kondenzátory až do 450 °C, kde se jako chladivo používá mořská voda nebo směsi s mořskou vodou. Koše do moříren, chemický průmysl. Korozivzdorná slitina niklu a mědi zcela odolná koroznímu praskání vyvolanému chloridy. Tepelné zpracování po svařování není potřebné. Výborná odolnost proti působení páry, proudící mořské vody, neutrálním a alkalickým solným roztokům. Velmi dobrá odolnost proti kysele reagujícím solným roztokům jako je chlorid zinečnatý, síran amonný nebo roztoky chloridu amonného a kyseliny bez oxidačních účinků jako např. zředěná kyselina sírová, kyselina solná, kyselina fluorovodíková, kyselina hexafluorokřemičitá, čistá kyselina fosforečná a organické kyseliny.

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    Technická zařízení pro práci na moři, jako například tepelné výměníky a kondenzátory až do 450 °C, kde se jako chladivo používá mořská voda nebo směsi s mořskou vodou. Koše do moříren, chemický průmysl. Korozivzdorná slitina niklu a mědi zcela odolná koroznímu praskání vyvolanému chloridy. Tepelné zpracování po svařování není potřebné. Výborná odolnost proti působení páry, proudící mořské vody, neutrálním a alkalickým solným roztokům. Velmi dobrá odolnost proti kysele reagujícím solným roztokům jako je chlorid zinečnatý, síran amonný nebo roztoky chloridu amonného a kyseliny bez oxidačních účinků jako např. zředěná kyselina sírová, kyselina solná, kyselina fluorovodíková, kyselina hexafluorokřemičitá, čistá kyselina fosforečná a organické kyseliny.

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  • BÖHLER L617

    Nickel-Chromium-Cobalt-Molybdenum-Alloy, used for gas turbin components and temperautes up to 1100°C.

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    • Pozemní turbíny
    • EN NiCr23Co12Mo
    • SEL 2.4663
    • UNS N06617
    • ASTM B168
    • Others Inconel 617

    Nickel-Chromium-Cobalt-Molybdenum-Alloy, used for gas turbin components and temperautes up to 1100°C.

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  • BÖHLER L625

    BÖHLER L625 is a non-magnetizable corrosion and heat resistant nickel alloy in the form of bars, forgings and semi-finished products up to max 254 mm diameter/ cross-section and oxidation resistant up to 1093°C. Best fatigue strength and resistance to stress corrosion cracking when exposed to chloride containing media. Good weldability.

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    • Letectví
    • Automobilový průmysl
    • EN NiCr22Mo9Nb
    • Market grade Alloy 625
    • SEL 2.4856
    • UNS N06625
    • AMS 5666
    • ASTM B564-06A

    BÖHLER L625 is a non-magnetizable corrosion and heat resistant nickel alloy in the form of bars, forgings and semi-finished products up to max 254 mm diameter/ cross-section and oxidation resistant up to 1093°C. Best fatigue strength and resistance to stress corrosion cracking when exposed to chloride containing media. Good weldability.

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  • BÖHLER L718AMS

    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.

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    • Letectví
    • Automobilový průmysl
    • Ropa a plyn / CPI
    • Pozemní turbíny
    • EN NC19FCNb
    • Market grade Alloy 718
    • SEL 2.4668
    • UNS N07718
    • AMS 5663
    • ASTM B637

    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.

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  • BÖHLER L718API

    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.

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    • Ropa a plyn / CPI
    • Market grade Alloy 718API
    • UNS N07718
    • Others NACE MR0175 / ISO 15156

    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.

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  • BÖHLER L718HCb

    BÖHLER L718HCB 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 gas turbines, aerospace engines, high-speed airframe parts such as disks, buckets, spacers and high temperature bolts and fasteners. Compared to standard alloy 718 AMS limits, Cb in L718HCb is adjusted in the upper range of the standard limits in order to enhance mechanical properties. L718HCb is typically used for high temperature bolting and fasteners.

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    • Letectví
    • EN NC19FCNb
    • Market grade Alloy 718
    • SEL 2.4668
    • UNS N07718
    • AMS 5663

    BÖHLER L718HCB 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 gas turbines, aerospace engines, high-speed airframe parts such as disks, buckets, spacers and high temperature bolts and fasteners. Compared to standard alloy 718 AMS limits, Cb in L718HCb is adjusted in the upper range of the standard limits in order to enhance mechanical properties. L718HCb is typically used for high temperature bolting and fasteners.

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  • BÖHLER L725

    BÖHLER L725 (UNS N07725) is an age-hardenable nickel-chromium-molybdenum-niobium alloy with comparable corrosion resistance to Alloy 625. The strength of Bohler L725 in the age-hardened condition is approximately twice that of annealed Alloy 625 and comparable to Alloy 718. The high nickel and chromium content provides corrosion resistance in reducing and oxidizing environments, while the molybdenum content increases resistance to reducing media and offers high resistance to pitting and crevice corrosion. The combination of elements makes the alloy resistant to hydrogen embrittlement and stress corrosion cracking. BÖHLER L725 is also approved according to NACE MR0175 for use under sour gas conditions. The alloy was originally developed for oilfield applications such as wellheads and well completions, safety valves and other downhole components where it resists the effects of hydrogen sulfide, chlorides and carbon dioxide. The alloy is also attractive for pumps and propeller shafts as well as for high-strength fasteners and hydraulic couplings in marine applications subject to corrosion, pitting and crevice attack in seawater.

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    • Market grade Alloy 725
    • UNS N07725
    • ASTM B805
    • Others API 6A CRA

    BÖHLER L725 (UNS N07725) is an age-hardenable nickel-chromium-molybdenum-niobium alloy with comparable corrosion resistance to Alloy 625. The strength of Bohler L725 in the age-hardened condition is approximately twice that of annealed Alloy 625 and comparable to Alloy 718. The high nickel and chromium content provides corrosion resistance in reducing and oxidizing environments, while the molybdenum content increases resistance to reducing media and offers high resistance to pitting and crevice corrosion. The combination of elements makes the alloy resistant to hydrogen embrittlement and stress corrosion cracking. BÖHLER L725 is also approved according to NACE MR0175 for use under sour gas conditions. The alloy was originally developed for oilfield applications such as wellheads and well completions, safety valves and other downhole components where it resists the effects of hydrogen sulfide, chlorides and carbon dioxide. The alloy is also attractive for pumps and propeller shafts as well as for high-strength fasteners and hydraulic couplings in marine applications subject to corrosion, pitting and crevice attack in seawater.

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  • BÖHLER L925

    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.

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    • Ropa a plyn / CPI
    • EN NiCr20FeMo3TiCuAl
    • Market grade Alloy 925
    • SEL 2.4852
    • UNS N09925
    • ASTM B805
    • Others API 6A CRA

    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.

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  • BÖHLER LHX

    BÖHLER LHX is a corrosion and heat resistant nickel alloy in the form of bars, forging and forging stock. Resistant to oxidation up to 2200°F (1204°C) and high strength above 1500°F (816°C). It is widely used typically for parts, in engines especially for combustion chambers, after burners and exhaust components but usage is not limited to such applications.

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    • Letectví

    BÖHLER LHX is a corrosion and heat resistant nickel alloy in the form of bars, forging and forging stock. Resistant to oxidation up to 2200°F (1204°C) and high strength above 1500°F (816°C). It is widely used typically for parts, in engines especially for combustion chambers, after burners and exhaust components but usage is not limited to such applications.

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