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High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they are not made to meet a specific chemical composition but rather specific mechanical properties. They have a carbon content between 0.05 and 0.25% to retain formability and weldability. Other alloying elements include up to 2.0% manganese and small quantities of copper, nickel, niobium, nitrogen, vanadium, chromium, molybdenum, titanium, calcium, rare-earth elements, or zirconium. Copper, titanium, vanadium, and niobium are added for strengthening purposes. These elements are intended to alter the microstructure of carbon steels, which is usually a ferrite-pearlite aggregate, to produce

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  • High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they are not made to meet a specific chemical composition but rather specific mechanical properties. They have a carbon content between 0.05 and 0.25% to retain formability and weldability. Other alloying elements include up to 2.0% manganese and small quantities of copper, nickel, niobium, nitrogen, vanadium, chromium, molybdenum, titanium, calcium, rare-earth elements, or zirconium. Copper, titanium, vanadium, and niobium are added for strengthening purposes. These elements are intended to alter the microstructure of carbon steels, which is usually a ferrite-pearlite aggregate, to produce a very fine dispersion of alloy carbides in an almost pure ferrite matrix. This eliminates the toughness-reducing effect of a pearlitic volume fraction yet maintains and increases the material's strength by refining the grain size, which in the case of ferrite increases yield strength by 50% for every halving of the mean grain diameter. Precipitation strengthening plays a minor role, too. Their yield strengths can be anywhere between 250–590 megapascals (36,000–86,000 psi). Because of their higher strength and toughness HSLA steels usually require 25 to 30% more power to form, as compared to carbon steels. Copper, silicon, nickel, chromium, and phosphorus are added to increase corrosion resistance. Zirconium, calcium, and rare-earth elements are added for sulfide-inclusion shape control which increases formability. These are needed because most HSLA steels have directionally sensitive properties. Formability and impact strength can vary significantly when tested longitudinally and transversely to the grain. Bends that are parallel to the longitudinal grain are more likely to crack around the outer edge because it experiences tensile loads. This directional characteristic is substantially reduced in HSLA steels that have been treated for sulfide shape control. They are used in cars, trucks, cranes, bridges, roller coasters and other structures that are designed to handle large amounts of stress or need a good strength-to-weight ratio. HSLA steel cross-sections and structures are usually 20 to 30% lighter than a carbon steel with the same strength. HSLA steels are also more resistant to rust than most carbon steels because of their lack of pearlite – the fine layers of ferrite (almost pure iron) and cementite in pearlite. HSLA steels usually have densities of around 7800 kg/m3. Military armour plate is mostly made from alloy steels, although some civilian armour against small arms is now made from HSLA steels with extreme low temperature quenching. (en)
  • 高張力鋼(こうちょうりょくこう、英語: High Tensile Strength Steel; HTSS)は合金成分の添加、組織の制御などを行って、一般構造用圧延鋼材よりも強度を向上させた鋼材。日本ではハイテン、高抗張力鋼とも呼ばれる。 (ja)
  • Laaggelegeerd staal met hoge sterkte, afgekort met HSLA-staal of HTSS van het Engelse High-Strength Low-Alloy steel en High Tensile Strength Steel, zijn een groep van relatief sterk en laaggelegeerde staal-soorten. In vergelijking met andere (koolstof)stalen heeft HSLA-staal relatief een hoge sterkte, goede lasbaarheid en hoge bestendigheid tegen corrosie door de atmosfeer. Het wordt veel toegepast in de offshore-industrie voor gaspijpleidingen, schepen, constructies en opslagtanks op zee. De vloeigrens ligt rond de 350-560 MPa. Het koolstof-gehalte ligt erg laag tussen de 0.05 en 0.25%. Het staal dankt zijn hoge strekte aan de microstructuur met zeer fijne korrels, welke zijn verkregen door toevoeging van kleine, gecontroleerde hoeveelheden niobium (Nb), titanium (Ti) of vanadium (V) door de staallegering te mengen. Deze legeringselementen remmen de faseransformatie naar austeniet tijdens het bewerkingsproces op hoge temperaturen door de uitscheiding van carbiden. Door het controleren van de temperatuur tijdens verdere bewerkingsprocessen en warmtebehandelingen wordt een zeer fijne korrelstructuur verkregen. Deze zeer kleine korrelgroottes zorgen voor een hoge sterkte, zoals beschreven in de Hall-Petchrelatie. Deze manier van versterken wordt korrelgrens-harden genoemd. (nl)
  • Stal konstrukcyjna niskostopowa – stal o niskiej zawartości węgla maksymalnie do 0,22% (na zachodzie przyjmuje się, że do 0,25, choć zdarzają się stale o jego nieco wyższej zawartości) posiadająca dodatki stopowe w ograniczonych ilościach. Stale niskostopowe używane są do budowy konstrukcji narażonych na działanie warunków atmosferycznych takich jak mosty, maszty, wagony kolejowe itp. - wszędzie tam, gdzie zastosowanie jej jest uzasadnione ekonomicznie. Charakteryzują się większą wytrzymałością od stali konstrukcyjnych wyższej jakości oraz większą odpornością na korozję.Według Polskiej Normy PN-XX/H-84018 stale wyższej jakości oznacza się liczbą całkowitą, która koduje średnią zawartość węgla (procent zawartości razy 100). Po tym symbolu następuje litera lub ciąg liter oznaczających główne dodatki stopowe. Niekiedy po symbolu dodatku następuje liczba całkowita kodująca zaokrągloną zwartość dodatku. Dla niektórych dodatków, jak na przykład manganu, nie stosuje się mnożnika zawartości. Dla innych, jak na przykład wanadu, stosuje się mnożnik 100. Przykładowe stale konstrukcyjne niskostopowe: * 09G2Cu – 0,12% węgla, 1,2-1,8% manganu, 0,25-0,5% miedzi; * 15G2AN3Cu – 0,8% węgla, 1.6% manganu, ponad 0,02% aluminium 0,02-0,06% niobu i 0,25-0,5% miedzi; * 18HGM – 0,16-0,23% węgla, 0,9-1.2% chromu, 0,9-1.2% manganu i 0,2-0.3% molibdenu. (pl)
  • Aço de alta resistência e baixa liga (ARBL) é um tipo de liga de aço que proporciona melhores propriedades mecânicas, ou maior resistência à corrosão do que o aço ao carbono. Aços ARBL diferem de outros aços devido ao fato de que eles não são feitos para atender a uma composição química específica, mas sim a propriedades mecânicas específicas. Também são conhecidos como Aços HSLA, sigla em inglês para high-strength, low-alloy que é diretamente traduzido para alta resistência e baixa liga (pt)
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  • 高張力鋼(こうちょうりょくこう、英語: High Tensile Strength Steel; HTSS)は合金成分の添加、組織の制御などを行って、一般構造用圧延鋼材よりも強度を向上させた鋼材。日本ではハイテン、高抗張力鋼とも呼ばれる。 (ja)
  • Aço de alta resistência e baixa liga (ARBL) é um tipo de liga de aço que proporciona melhores propriedades mecânicas, ou maior resistência à corrosão do que o aço ao carbono. Aços ARBL diferem de outros aços devido ao fato de que eles não são feitos para atender a uma composição química específica, mas sim a propriedades mecânicas específicas. Também são conhecidos como Aços HSLA, sigla em inglês para high-strength, low-alloy que é diretamente traduzido para alta resistência e baixa liga (pt)
  • High-strength low-alloy steel (HSLA) is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they are not made to meet a specific chemical composition but rather specific mechanical properties. They have a carbon content between 0.05 and 0.25% to retain formability and weldability. Other alloying elements include up to 2.0% manganese and small quantities of copper, nickel, niobium, nitrogen, vanadium, chromium, molybdenum, titanium, calcium, rare-earth elements, or zirconium. Copper, titanium, vanadium, and niobium are added for strengthening purposes. These elements are intended to alter the microstructure of carbon steels, which is usually a ferrite-pearlite aggregate, to produce (en)
  • Laaggelegeerd staal met hoge sterkte, afgekort met HSLA-staal of HTSS van het Engelse High-Strength Low-Alloy steel en High Tensile Strength Steel, zijn een groep van relatief sterk en laaggelegeerde staal-soorten. In vergelijking met andere (koolstof)stalen heeft HSLA-staal relatief een hoge sterkte, goede lasbaarheid en hoge bestendigheid tegen corrosie door de atmosfeer. Het wordt veel toegepast in de offshore-industrie voor gaspijpleidingen, schepen, constructies en opslagtanks op zee. (nl)
  • Stal konstrukcyjna niskostopowa – stal o niskiej zawartości węgla maksymalnie do 0,22% (na zachodzie przyjmuje się, że do 0,25, choć zdarzają się stale o jego nieco wyższej zawartości) posiadająca dodatki stopowe w ograniczonych ilościach. Przykładowe stale konstrukcyjne niskostopowe: * 09G2Cu – 0,12% węgla, 1,2-1,8% manganu, 0,25-0,5% miedzi; * 15G2AN3Cu – 0,8% węgla, 1.6% manganu, ponad 0,02% aluminium 0,02-0,06% niobu i 0,25-0,5% miedzi; * 18HGM – 0,16-0,23% węgla, 0,9-1.2% chromu, 0,9-1.2% manganu i 0,2-0.3% molibdenu. (pl)
rdfs:label
  • High-strength low-alloy steel (en)
  • 高張力鋼 (ja)
  • Laaggelegeerd staal met hoge sterkte (nl)
  • Stal konstrukcyjna niskostopowa (pl)
  • Aço de alta resistência e baixa liga (pt)
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