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"description": "Hiduron\u00ae<\/sup> 191 is a medium-strength precipitation hardened cupronickel alloy supplied in the hot worked condition. It contains about 14.5% nickel and 4.5% manganese strengthened by additions of aluminium and iron, which may be refined by controlled small amounts of chromium.<\/p>\nIn many critical marine applications, for example on oil platforms and naval ships, the requirement for instant service following periods of inactivity favours the anti-fouling and corrosion resistance characteristics of a cupronickel; but conventional cupronickels have the disadvantage of inherently low strength. A combination of reasonable strength with good corrosion resistance and impingement resistance is achieved with nickel aluminium bronze but the higher strength levels are only achieved at the expense of toughness with consequent limited resistance to shock.<\/p>\n
Hiduron\u00ae<\/sup> 191 was developed to provide both the corrosion resistance and anti-fouling characteristics of conventional cupronickels but with superior tensile and toughness properties compared to aluminium bronzes. Its resistance to marine corrosion is comparable with that of conventional cupronickels, the combination of tensile strength and toughness is far superior to that available with aluminium bronzes and its properties are largely independent of section size. In addition, Hiduron\u00ae 191 has the relatively high modulus of elasticity of a cupronickel compared with most other bronzes.<\/p>\nHiduron\u00ae<\/sup> 191 has the inherent good resistance to bio-fouling of a cupronickel whilst the additional elements in its composition not only improve mechanical properties but also increase resistance to localised corrosion and to impingement attack in seawater. It is virtually non-magnetic and possesses excellent sub-zero properties. Hiduron\u00ae<\/sup> 191 has good machineability, good weldability and can also be forged, hot upset and thread rolled without difficulty. It meets the requirements of NACE MR 0175<\/p>\n",
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Hiduron\u00ae 191 was developed to provide both the corrosion resistance and anti-fouling characteristics of conventional cupronickels but with superior tensile and toughness properties compared to aluminium bronzes. Its resistance to marine corrosion is comparable with that of conventional cupronickels, the combination of tensile strength and toughness is far superior to that available with aluminium bronzes and its properties are largely independent of section size.<\/p>\n",
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With a magnetic permeability of less than 1.001, the alloy is essentially non-magnetic.\nThe excellent combination of properties provided by Hidurel\u00ae 5 is the result of careful control of chemical composition and heat treatment. Tensile properties are uniform and virtually independent of section thickness. The heat treatment of the alloy also ensures dimensional stability of a high order.\nHidurel\u00ae 5 meets the mechanical and chemical properties of DTD 498, BS 4577 Type A3\/2 and Rolls Royce MSRR 8501 to which Langley Alloys regularly supply so can therefore be specified in confidence for high integrity components. Cold worked material to DTD 504 can also be supplied to order.\n","short_description":"Hidurel\u00ae 5 is a precipitation-hardening copper-nickel-silicon alloy possessing high electrical and thermal conductivity with very good notch ductility and high mechanical strength. 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All these properties are achieved without heat treatment and are combined with good machinability and the ability to take an excellent finish.\nThe major use of Hiduron\u00ae 130 is in subsea hydraulic and electrical connectors such as flying lead connectors for stab plates. It is also used in naval winches, seawater valves and marine engineering generally. Additionally, it is applied in the aerospace industry for heavily stressed airframe components. Other applications include a variety of mechanical engineering and hydraulics systems amongst which are valve seat inserts and thrust washers for high performance internal combustion engines. It is covered by the specifications DIN 2.1504 and DTD 900\/4805 to which it can be supplied when required.\n","short_description":"Hiduron\u00ae 130 is a high-strength cupronickel supplied in the hot worked condition. Aluminium is the alloys key strengthening element in a similar way to Alloy K-500. 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Its resistance to marine corrosion is comparable with that of conventional cupronickels, the combination of tensile strength and toughness is far superior to that available with aluminium bronzes and its properties are largely independent of section size. In addition, Hiduron\u00ae 191 has the relatively high modulus of elasticity of a cupronickel compared with most other bronzes.\nHiduron\u00ae 191 has the inherent good resistance to bio-fouling of a cupronickel whilst the additional elements in its composition not only improve mechanical properties but also increase resistance to localised corrosion and to impingement attack in seawater. It is virtually non-magnetic and possesses excellent sub-zero properties. Hiduron\u00ae 191 has good machineability, good weldability and can also be forged, hot upset and thread rolled without difficulty. It meets the requirements of NACE MR 0175\n","short_description":"Hiduron\u00ae 191 is a medium-strength precipitation hardened cupronickel alloy supplied in the hot worked condition. It contains about 14.5% nickel and 4.5% manganese strengthened by additions of aluminium and iron, which may be refined by controlled small amounts of chromium.\nHiduron\u00ae 191 was developed to provide both the corrosion resistance and anti-fouling characteristics of conventional cupronickels but with superior tensile and toughness properties compared to aluminium bronzes. Its resistance to marine corrosion is comparable with that of conventional cupronickels, the combination of tensile strength and toughness is far superior to that available with aluminium bronzes and its properties are largely independent of section size.\n","features":[{"feature":"Excellent corrosion resistance in marine environments - superior to nickel aluminium bronzes and 22% chrome duplex stainless steels"},{"feature":"Superior strength, jet impingement resistance and general corrosion resistance compared to conventional copper nickels"},{"feature":"Greater strength and toughness than nickel aluminium bronzes - strength is comparable to 22% chrome duplex stainless steels"},{"feature":"No loss of impact strength down to -196\u00b0C"},{"feature":"Excellent anti-galling properties, particularly when operating against stainless steels"},{"feature":"Good anti-fouling properties"},{"feature":"Freedom from hydrogen embrittlement"},{"feature":"Low magnetic permeability"},{"feature":"Approved as a named alloy by the world\u2019s most prestigious Navys"},{"feature":"Galvanic compatibility with other copper alloys and stainless steels"}],"applications":[{"application":"Naval and Defence applications such as fasteners for ships and submarines, control elements of submarines, pump shafts, mechanical seals, winch components, gears, hose couplings, weapons handling equipment, components in sonar devices, propeller shafts, drive bushes"},{"application":"Oil & Gas industry components including subsea bolting, shafts for pumps & valves, valve spindles, hydraulic pistons and cylinders"},{"application":"Process industry applications such as impellers, pump shafts, valve components, process control equipment"},{"application":"Subsea mining application as hydraulic connectors, pistons and cylinders, pressure couplings"}],"composition":{"ID":1136,"id":1136,"title":"Hiduron 191- Chem Rev1","filename":"Hiduron-191-Chem-Rev1.xls","filesize":31744,"url":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2017\/04\/Hiduron-191-Chem-Rev1.xls","link":"https:\/\/www.langleyalloys.com\/en\/products\/hiduron-191\/hiduron-191-chem-rev1\/","alt":"","author":"3","description":"","caption":"","name":"hiduron-191-chem-rev1","status":"inherit","uploaded_to":750,"date":"2017-04-04 10:31:33","modified":"2017-04-05 13:10:11","menu_order":0,"mime_type":"application\/vnd.ms-excel","type":"application","subtype":"vnd.ms-excel","icon":"https:\/\/www.langleyalloys.com\/wp-includes\/images\/media\/spreadsheet.png"},"mechanical":{"ID":1137,"id":1137,"title":"Hiduron 191- Mech Rev1","filename":"Hiduron-191-Mech-Rev1.xls","filesize":31744,"url":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2017\/04\/Hiduron-191-Mech-Rev1.xls","link":"https:\/\/www.langleyalloys.com\/en\/products\/hiduron-191\/hiduron-191-mech-rev1\/","alt":"","author":"3","description":"","caption":"","name":"hiduron-191-mech-rev1","status":"inherit","uploaded_to":750,"date":"2017-04-04 10:31:34","modified":"2017-04-05 13:10:11","menu_order":0,"mime_type":"application\/vnd.ms-excel","type":"application","subtype":"vnd.ms-excel","icon":"https:\/\/www.langleyalloys.com\/wp-includes\/images\/media\/spreadsheet.png"}}],"sort_order":"100","page_head_image":{"ID":18480,"id":18480,"title":"07\/06\/17 Stock on Trent - Langley Alloys","filename":"langley-alloys-slider-16.jpg","filesize":87262,"url":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/langley-alloys-slider-16.jpg","link":"https:\/\/www.langleyalloys.com\/en\/products\/hidurel-5\/07-06-17-stock-on-trent-langley-alloys-8\/","alt":"Alloy 400","author":"3","description":"","caption":"07\/06\/17 Stock on Trent - Langley Alloys","name":"07-06-17-stock-on-trent-langley-alloys-8","status":"inherit","uploaded_to":748,"date":"2019-01-04 15:01:27","modified":"2019-07-31 10:27:40","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.langleyalloys.com\/wp-includes\/images\/media\/default.png","width":1920,"height":581,"sizes":{"thumbnail":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-150x150.jpg","thumbnail-width":150,"thumbnail-height":150,"medium":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-300x91.jpg","medium-width":300,"medium-height":91,"medium_large":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-768x232.jpg","medium_large-width":768,"medium_large-height":232,"large":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-1024x310.jpg","large-width":1024,"large-height":310,"1536x1536":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/langley-alloys-slider-16.jpg","1536x1536-width":1536,"1536x1536-height":465,"2048x2048":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/langley-alloys-slider-16.jpg","2048x2048-width":1920,"2048x2048-height":581,"gallery_slider":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-570x390.jpg","gallery_slider-width":570,"gallery_slider-height":390,"services":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-600x495.jpg","services-width":600,"services-height":495,"post":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-770x400.jpg","post-width":770,"post-height":400,"square":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-600x600.jpg","square-width":600,"square-height":600,"photo":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-600x400.jpg","photo-width":600,"photo-height":400,"video":"https:\/\/www.langleyalloys.com\/wp-content\/uploads\/2019\/01\/Slider-16-1800x985.jpg","video-width":1800,"video-height":985}},"page_head_title":"","page_head_subtitle":""}Copper
There are more than 400 different alloys available that are based upon copper as the base metal, sometimes incorrectly captioned as bronzes (which are copper-tin alloys) and brasses (copper-zinc alloys). The creation of the Langley Alloys Ltd business can be traced back to the special copper alloys division of High Duty Alloys Limited and has ultimately resulted in a number of unique high-performance alloys. Copper has the best electrical and thermal conductivity of any commercial metal, but careful alloying creates a wider range of competitive properties.
The Hiduron® alloys are cupronickels, so predominantly consist of copper-nickel, meaning that they have excellent resistance to corrosion in seawater, marine and industrial applications. They are strengthened by smaller additions of aluminium and iron, achieving significantly higher strengths than other copper alloys which also improves their wear resistance and anti-galling properties, making them widely used in naval and oil & gas applications. By replacing some of the aluminium and iron additions with manganese, Hiduron 191 has a lower proof stress, but has much greater ductility and toughness. The Hiduron products are the only high-strength copper alloys with a proven record of resistance to hydrogen embrittlement.
Hidurel® 5 is a copper-nickel-silicon alloy. As the alloy additions are relatively modest compared with alternatives, it retains high conductivity, but still achieves much greater levels of strength than commonly available metals such as nickel-aluminium bronze (NAB) and 70/30 copper-nickel. Interesting features include its extremely low magnetic permeability and strong bearing properties making it a strong candidate for many diverse marine applications.
| Alloy | Common Name | Related Specifications | Tensile Strength | Proof Test | Elongation | ||
| British | European | United States | N/mm2 (ksi) | N/mm2 (ksi) | (%) | ||
| Hidurel 5 | BS B25 BS2 B25 DTD 498 MSRR 8501 |
2.0855 CW111C |
UNS C64700 |
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| Hiduron 130 | DTD 900/4805 |
DIN 2.1504 |
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| Hiduron 191 | DEF STAN 02-835 NES 835 |
DOD-C-24676 EB4223A UNS C72420 |
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Hidurel 5:
Hidurel® 5 is a precipitation-hardening copper-nickel-silicon alloy possessing high electrical and thermal conductivity with very good notch ductility and high mechanical strength. Annealing at elevated temperature creates a soft supersaturated alpha-phase structure, before subsequent age hardening at lower temperature precipitates finely dispersed nickel silicide in the matrix. Despite its high strength, the alloy is resistant to hydrogen embrittlement. Resistance to corrosion under marine and industrial conditions is excellent and the alloy has good anti-frictional and bearing properties. With a magnetic permeability of less than 1.001, the alloy is essentially non-magnetic.
Hiduron 130:
Hiduron® 130 is a high-strength cupronickel supplied in the hot worked condition. Aluminium is the alloys key strengthening element in a similar way to Alloy K-500. As these precipitates are formed through a carefully controlled forging process, naturally aged during cooling, no further heat treatment is necessary, making it one of the highest strength copper alloys commercially available. Being a cupronickel, it has excellent resistance to corrosion by seawater and in marine and industrial atmospheres and it is highly resistant to crevice corrosion.
Hiduron 191:
Hiduron® 191 is a medium-strength precipitation hardened cupronickel alloy supplied in the hot worked condition. It contains about 14.5% nickel and 4.5% manganese strengthened by additions of aluminium and iron, which may be refined by controlled small amounts of chromium.
Hiduron® 191 was developed to provide both the corrosion resistance and anti-fouling characteristics of conventional cupronickels but with superior tensile and toughness properties compared to aluminium bronzes. Its resistance to marine corrosion is comparable with that of conventional cupronickels, the combination of tensile strength and toughness is far superior to that available with aluminium bronzes and its properties are largely independent of section size.