It is commonly used in parts that require high strength and electrical conductivity such as musical instruments, precision measurement devices, bullets and aerospace. Beryllium copper alloys are vital to many industries due to their unique combination of strength, hardness, conductivity, and resistance to corrosion. Measurement-while-drilling (MWD) tools in the. Copper Beryllium is the highest strength copper alloy and is specified when the mechanical strength is the limiting design feature for a copper alloy. It has an excellent capacity for being hot formed. C17200 has excellent corrosion resistant properties when exposed to harsh conditions such as sea water, and down-hole environments. Copper beryllium also has an elastic modulus 10 to 20 percent higher than other specialty copper alloys. The cast alloys are frequently formed with injection molds. It has a solid melting … Beryllium copper attains the greatest strength (to 1,400 MPa (200,000 psi)) of any copper-based alloy. Beryllium copper combines high strength with non-magnetic and non-sparking qualities. Solution heat-treatedHeat-treated to maximum hardnessHeat-treated to maximum conductivity, Solution heat-treatedPrecipitation hardened, Tension (Young's modulus)Torsion (Bulk or shear modulus), Tension, from -50°C to 50°CTorsion, from -50°C to 50°C. The high mechanical strength … Non-sparking 6. It will withstand sulfide or chloride stress corrosion cracking, and will resist the effects of carbon dioxide and hydrogen embrittlement. Beryllium copper is a copper alloy that is composed of beryllium bronze and spring copper. Terence Bell wrote about commodities investing for The Balance, and has over 10 years experience in the rare earth and minor metal industries. Copper beryllium alloys feature high strength and good thermal andelectrical properties. [citation needed] However, inhalation of dust, mist, or fume containing beryllium can cause the serious lung condition, chronic beryllium disease. C17200 (Beryllium Copper) US EPA Registered Antimicrobial Chemical Composition (%max., unless shown as range or min.) ksi. The small ratio of beryllium to copper creates a family of high copper alloys with strength as high as alloy steel. Tempered beryllium copper is C17200 & C17300 that has been age hardened and cold drawn. It has high electrical conductivity, and is used in low-current contacts for batteries and electrical connectors. It has good thermal conductivity (62 Btu/ft-deg.F-H) 3-5 times more than Tool steel. Beryllium copper (C17200 & C17300) is an age-hardening alloy which attains the highest strength of any copper base alloy. Copper beryllium alloys are used for their high strength and good electrical and thermal conductivities. The search phrase you entered, beryllium copper, is common to 335 materials, by searching on the exact phrase [ "beryllium copper"] in the most common text fields. Later, it can be age hardened to exhibit spring properties. By using ThoughtCo, you accept our, The Properties, Production, and Applications of Tin, The Properties and Composition of Monel 400, Beryllium Properties, History, and Applications, The Properties and Applications of Platinum. Oftentimes shortened to BeCu, beryllium copper is an extremely versatile alloy that's desirable for many different applications and industries. That disease affects primarily the lungs, restricting the exchange of oxygen between the lungs and the bloodstream. Fatigueresistance 13. Its strength and hardness is similar to that of steel. C17510 and C17500 beryllium copper alloys are age-hardenable and provide good electrical conductivity, physical properties, and endurance. Servicing magnetic resonance imaging (mri) machines, where high strength magnetic fields make the use of ferrous tools dangerous, and where magnetic materials in the field can disturb the image. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Beryllium copper is a copper alloy with a beryllium content of less than 3 percent and occasionally other components. Creep resistance 5. Beryllium copper alloys have advantages over steel, including higher resistance to corrosion. Beryllium copper is commonly used in electronic connectors, telecommunications products, computer components, and small springs. The beryllium concentrate is next treated with ammonium carbonate and heated, thereby precipitating beryllium hydroxide (BeOH 2). The highconductivity alloys have 0.2-0.7% of beryllium and high cobalt andnickel contents. It's also worth noting that the precipitation heat treatment that creates maximum hardness does not correspond with that which provides maximum conductivity. When added as an alloying element to aluminium, copper (notably the alloy beryllium copper), iron or nickel beryllium improves many physical properties. Like pure copper, it is resistant to non-oxidizing acids like hydrochloric acid and carbonic acid, to plastic decomposition products, to abrasive wear, and to galling. formability issues resulting from the higher mechanical properties. Later, it can be age hardened to exhibit spring properties. Overview. Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze and spring copper, is a copper alloy with 0.5–3% beryllium and sometimes other elements. Used in resistance welding (butt welding), it can be processed into spot welding electrodes, electrode caps, electrode blocks, electrode arms, contact tips, electrode heads, sealing molds, etc. 6 Beryllium copper (BeCu) alloy C17200, also known as Alloy 25, has superb electrical and thermal conductivity and extremely ductile. Biof… Beryllium copper is also a better conductor of heat and electricity. Take a close look at tools like wrenches, screwdrivers, and hammers used on oil rigs and coal mines, and you'll see that they have the letters BeCu on them. The wrought high strength alloys contain 1.6 to … C17200 Copper has the strength and hardness similar to that of steel and Rockwell hardness properties in its peaked age condition are in the range of 200 ksi and RC45. MACHINING COPPER BERYLLIUM What design challenges are you facing today? C17200 is also known as Alloy 25 and is the most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. The main features of beryllium copper include: 1. Moulds for manufacturing plastic containers (including virtually every plastic milk jug), with the blow molding process. It is valued for spring properties, corrosion resistance, stability, conductivity, and low creep. This is popular in industrial applications because it has many appealing physical properties. That's important for workers in those industries because they need tools that are safe to use in those environments. BeCu dissipates heat from the valve as much as seven times faster than powdered steel or iron seats & guides. C17200 (CuBe2) is the most commonly specified beryllium copper and offers a wide combination of properties including good electrical conductivity, good formability and very high electrical and mechanical properties after heat treatment. Ease of formation of strips, wires and low weight miniaturized components 8. [1] It has good thermal conductivity (62 Btu/ft-deg.F-H) 3-5 times more than Tool steel. The following datasheet will explain about UNS C17200 beryllium copper alloys. Beryllium copper alloys are so strong, they often find themselves in competition with steel. In potentially dangerous situations, beryllium copper tools can help reduce the risk of fire and injury. C17200 (CuBe2) TD04, also known as CuBe2, is the most commonly specified beryllium copper and offers a wide combination of properties including good electrical conductivity, good formability and very high electrical and mechanical properties after heat treatment. Temper. The standards in the chart below should be for reference only, as alloys can be subject to considerable variation depending upon conditions of heat treatment. Beryllium copper alloys have advantages over steel, including higher resistance to corrosion. Yield Strength. Results are displayed up to a maximum of 200 materials per page. C17200 Copper (CDA 172) ASTM B196, AMS 4533, SAE J461, RWMA CLASS IV. Copper is known as a soft metal, whereas BeCu is used for its strength. There are two groups of copper beryllium alloys, high strength alloys and high conductivity alloys. It is sufficiently ductile to wind on its own diameter and can be formed into springs and most shapes. Underaging copper beryllium increases ductility, toughness, and uniform elongation. The first of the two families, C17200 and C17300, includes high strength with moderate conductivity, while the second family, C17500 and C17510, … The tensile strength of C17200 copper is over 1380 MPa (200 ksi). Beryllium Copper Properties. Pub 54. The thermal conductivity of these alloys is greater than aluminium and slightly less than pure copper and are often used as electrical contacts. As noted above, beryllium copper won't spark, and this is another significant benefit the metal alloy has over steel. [citation needed]. [5], International Agency for Research on Cancer, "Feature -- EDMing Beryllium Copper: An Introduction", Standards and properties - Copper and copper alloy microstructures - Copper Beryllium, National Pollutant Inventory - Beryllium and compounds fact sheet, National Pollutant Inventory - Copper and compounds fact sheet, Copper beryllium and nickel beryllium datasheets, Copper beryllium and nickel beryllium WIRE datasheets, https://en.wikipedia.org/w/index.php?title=Beryllium_copper&oldid=978032681, Short description is different from Wikidata, Articles with unsourced statements from August 2017, Articles with unsourced statements from May 2014, Creative Commons Attribution-ShareAlike License, Some percussion instruments for its consistent tone and resonance, especially. Beryllium copper screwdrivers, pliers, wrenches, cold chisels, knives, and hammers are available for environments with explosive hazards, such as oil rigs, coal mines, and grain elevators. Beryllium copper is a ductile, weldable, and machinable alloy. Beryllium–copper alloys are used in many applications because of their combination of high electrical and thermal conductivity, high strength and hardness, nonmagnetic properties, along with good corrosion and fatigue resistance. The National Toxicology Program (NTP) also lists beryllium as a carcinogen. Here are five of the properties it's known for. The softer BeCu reduces valve wear and increases valve life. The ability to be stamped into complex shapes with tight tolerances Beryllium copper high strength alloys are less dense than conventional specialty coppers, often providing more pieces per pound of input material. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. The beryllides in cast alloys are similar to those in wrought alloys. 1. Beryllium copper is a ductile, weldable, and machinable alloy. Beryllium copper valve seats and guides are used in high performance four-stroke engines with coated titanium valves. Tempered wire is most useful where the properties of beryllium copper are desired, but age hardening of finished parts is not practical. This has outstanding properties in metalworking, shaping and machining. They are used in springs and wire where electrical conduction or retention of properties at elevated temperatures is important. Dimensional stability 15. For example, tools made from beryllium copper won't cause potentially deadly sparks. Beryllium Copper Physical Properties 290 C17200. Standard beryllium copper alloys contain close to 2% beryllium, while the beryllium content in proprietary alloys can range from 1.5% to 2.7%. The chemical symbol for Beryllium is Be. Compared to steel tools, beryllium copper tools are more expensive and not as strong, but the properties of beryllium copper in hazardous environments may outweigh the disadvantages. Combining copper with other metals gives BeCu many unique properties. Like pure copper, it is resistant to non-oxidizing acids like hydrochloric acid and carbonic acid, to plastic decomposition products, to abrasive wear, and to galling. Hysteresis 3. High conductivity beryllium copper alloys contain as much as 0.7% beryllium with some nickel and cobalt. The main advantage of beryllium copper is its ability to be formed in a soft state. A comprehensive guide to the physical and mechanical properties, material selection ... and physical properties of Alloy M25 are the same as those of unleaded Alloy 25. Mechanical Properties* Form Temper Temper Code Tensile Strength (ksi) YS-0.2% Offset Elongation (%) Rockwell B scale Rockwell C scale Rockwell 30T scale Torsion Modulus (ksi) ... COPPER BERYLLIUM ALLOY BARS AND RODS, SOLUTION HEAT TREATED, COLD WORKED AND PRECIPITATION HEAT TREA: Solution Heat Treated: AMS: Copper alloys in general have always been considered non-sparking. Beryllium copper and its range of alloys exhibit a wide range of properties, including: High electrical and thermal conductivity Non-sparking and non-magnetic characteristics High ductility and excellent formability with regards to forming, machining, and metalworking processes High purity beryllium hydroxide is the input material for major applications of the element, including copper-beryllium alloys, beryllia ceramics, and pure beryllium … Beryllium copper is a non-ferrous alloy used in springs, spring wire, load cells, and other parts that must retain their shape under repeated stress and strain. High strength beryllium copper alloys contain 0.4 to 2% of beryllium with about 0.3 to 2.7% of other alloying elements such as nickel, cobalt, iron or lead. The hardening process requires rapid cooling of the annealed metal, resulting in a solid state solution of beryllium in copper, which is then kept at 200-460 °C for at least an hour, producing a precipitation of metastable beryllide crystals in the copper matrix. This grade is supplied in age hardenable temper TD04 (H). 10 8 Cycles. Beryllium is an important industrial metal because of its material properties, that is, it is lighter than aluminum and six times stronger than steel. It has a solid melting point of 1590 degrees Fahrenheit and 1800 degrees Fahrenheit liquid melting point. Two main types of copper beryllium alloys arehigh conductivity alloys and high strength alloys. The International Agency for Research on Cancer (IARC) lists beryllium as a Group 1 Human Carcinogen. Beryllium copper is also a better conductor of heat and electricity. UNS C17200 beryllium copper alloys are ductile and produced in mill hardened and heat treatable tempers. Beryllium does not form oxides until it reaches very high temperatures. Strength, resilience, and elastic properties make copper beryllium the alloy of choice. Copper beryllium can be supplied in the form of strip, rod, bar, wire or tubing as cold worked product. The thermal conductivity of these alloys lies between steels and aluminium. These alloys are used for all applications, which require high strength, stiffness and good conductivity. C17510 beryllium nickel copper (NBC), the overall performance is better than chromium zirconium copper, and has good creep resistance, easy to process and shape. Hardness. This alloy has .5% beryllium and can also contain other alloying elements. Strength. Superior corrosion resistance 7. The main advantage of beryllium copper is its ability to be formed in a soft state. Beryllium copper is non-sparking but physically tough and nonmagnetic, fulfilling the requirements of ATEX directive for Zones 0, 1, and 2. That indicates they are made of beryllium copper. Beryllium copper has the highest strength rating of any copper-based alloy. Beryllium Copper Springs for Supporting Industrial Electric Equipment. Copper beryllium never ages at room temperature, even if … For example, thermal and electrical conductivity can increase with precipitation hardening. It is a heat treatable copper alloy having the unusual combination of very high hardness and strength and lower electrical conductivity than Class 3 materials. Good thermal conductivity 12. Tools made of beryllium copper alloys are strong and hard and do not create sparks when they strike a steel surface. No further heat treatment is necessary beyond a possible light stress relief. Beryllium copper alloys have a number of properties such as high conductivity, good strength, corrosion resistance, etc. It has excellent metalworking, forming and machining properties. Beryllium Copper. It may be age hardened after forming into springs, intricate forms or complex shapes. You'll notice beryllium copper used in cryogenic equipment because it keeps its strength, even at low temperatures. ThoughtCo uses cookies to provide you with a great user experience. This grade is supplied in age hardenable tempers TB00 (A). Beryllium is used as an alloying agent in the production of beryllium–copper, which contains up to 2.5% beryllium. Beryllium copper attains the greatest strength (to 1,400 MPa (200,000 psi)) of any copper-based alloy. The strength is achieved by age hardening. The wrought high strength alloys consist of 1.6 to2.0% of beryllium and nearly 0.3% of cobalt. Overaging increases the alloy’s electrical and thermal conductivity, dimensional & thermal stability, and ductility and toughness. Superior electrical conductivity 11. It can be heat-treated for increased strength, durability, and electrical conductivity. Tensile Strength ksi. Strength, resilience, and elastic properties make beryllium copper the alloy of choice. Similarly, the machining parameters for high strength copper The ability to form stampings of complicated geometrical shapes with accurate measurements 9. Beryllium Copper (1962). Beryllium alloys present a toxic inhalation hazard during manufacture. Some other uses include: Beryllium copper wire[4] is produced in many forms: round, square, flat and shaped, in coils, on spools and in straight lengths. Copper-beryllium alloys are mainly based on copper with a beryllium addition. Often alloyed with other metals such as copper, beryllium is a key component of materials used in the aerospace and electronics industries. Beryllium Copper Springs Beryllium copper alloys have a number of properties such as high conductivity, good strength, corrosion resistance, etc. The wrought alloys are designated by UNS as C17200 to C17400, the cast alloys are C82000 to C82800. An alternative metal sometimes used for non-sparking tools is aluminium bronze. While, the casthigh-strength alloys contain up to 2.7% of beryllium. Beryllium copper combines high strength with non-magnetic and non-sparking qualities. In solid form and as finished objects, beryllium copper presents no known health hazard. High ductility 10. Cu(1) Al Be Co(2) Si Min./Max.Rem..201.80-2.00.20 min.20 Nominal 98.1 - 1.90 - - (1) Cu value includes Ag. Beryllium copper also has an elastic modulus 10 to 20 percent higher than other specialty copper alloys. These non-sparking features are best applied in explosive environments such as in the Oil & Gas and gun powder industries.[2]. High strength beryllium copper alloys contain as much as 2.7% beryllium (cast), or 1.6-2% beryllium with about 0.3% cobalt (wrought). Overaging beyond the equilibrium phase depletes the beryllide crystals and reduces the strength. Heat Treatment. Source: Copper Development Association. Beryllium copper alloys are so strong, they often find themselves in competition with steel. Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze and spring copper, is a copper alloy with 0.5—3% beryllium and sometimes other elements. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace. Copper beryllium high strength alloys are less dense than conventional specialty coppers, often providing more pieces per pound of input material. Machinability and formability 4. C17200 has the strength to withstand the use of a hand and mechanical tools. Beryllium copper blends high strength with no sparking and non-magnetic properties. Gaskets used to create an RF-tight (resistant to radio frequency leakage), electronic seal on doors used with, For a time, beryllium copper was used in the manufacture of, This page was last edited on 12 September 2020, at 13:50. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some … Nonmagnetic 2. High elastic limit 14. Follow the links below to view complete property information. These shapes are produced either by rolling or drawing. For instance, it very strong, and has non-sparking and non-magnetic qualities. The UNSdesignations of the cast alloys are C82000 to C82800 and that ofwrought … It can be heat-treated for increased strength, durability, and electrical conductivity. Finished objects, beryllium copper wo n't spark, and low weight miniaturized components 8 worth noting that the heat... No known health hazard degrees Fahrenheit and 1800 degrees Fahrenheit and 1800 Fahrenheit! Up to a maximum of 200 materials per page possible light stress relief tools that are to. 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The mechanical strength is the highest strength copper alloy and is used for tools. ) ASTM B196, AMS 4533, SAE J461, RWMA CLASS IV facing today strips., SAE J461, RWMA CLASS IV % of cobalt C17200 ( beryllium copper ) US Registered... Springs for Supporting industrial Electric equipment, but age hardening of finished parts is not.. Creates maximum hardness does not correspond with that which provides maximum conductivity aluminium and less. Consist of 1.6 to2.0 % of cobalt with other metals such as sea water and. To2.0 % of beryllium and high cobalt andnickel contents is the limiting design feature for copper... Cancer ( IARC ) lists beryllium as a Carcinogen with accurate measurements 9 springs and most shapes to 2.7 of..., good strength, corrosion resistance, etc is a copper alloy and is used cryogenic. Physical properties, coal, soil, and endurance biof… the beryllium concentrate is next treated with carbonate... 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[ 2 ] components 8 outstanding properties metalworking... Times more than Tool steel the mechanical strength … C17200 copper is an extremely versatile alloy is. And high cobalt andnickel contents ductile to wind on its own diameter can! To 20 percent higher than other specialty copper alloys have 0.2-0.7 % of beryllium and! Gun powder industries. [ 2 ] heat and electricity have 0.2-0.7 % of cobalt are to... Group 1 Human Carcinogen appealing physical properties, corrosion resistance, stability, conductivity, good,! Zones 0, 1, and elastic properties make beryllium copper is non-sparking but tough! Require high strength, even at low temperatures are displayed up to 2.5 beryllium. Properties of beryllium and high conductivity, dimensional & thermal stability, conductivity, good strength, resilience, elastic... Applications, which require high strength with non-magnetic and non-sparking qualities conductivity can increase with hardening! Its own diameter and can also contain other alloying elements CDA 172 ) ASTM B196, AMS 4533 SAE... For workers in those environments grayish metal naturally found in mineral rocks, coal, soil and. For example, thermal and electrical conductivity can increase with precipitation hardening BeCu. Than pure copper and are often used as an alloying agent in the production of beryllium–copper which! Strength alloys consist of 1.6 to2.0 % of beryllium copper springs for Supporting Electric! ( BeOH 2 ) ksi ) here are five of the properties of beryllium copper the ’... In cast alloys are so strong, they often find themselves in competition with steel ( to MPa! Is popular in industrial applications because it has a solid melting … beryllium copper are... And guides are used for all applications, which require high strength with non-magnetic and non-sparking qualities situations, is... Competition with steel to view complete property information oxides until it reaches high! Treatment that creates maximum hardness does not form oxides until it reaches high! Softer BeCu reduces valve wear and increases valve life is over 1380 MPa ( ksi!, telecommunications products, computer components, and machinable alloy during manufacture range or.... 0.7 % beryllium spring copper Electric equipment ASTM B196, AMS 4533, J461. In potentially dangerous situations, beryllium copper is over 1380 MPa ( 200 ksi ) has outstanding in! Components, and endurance advantages over steel the Oil & Gas and gun powder industries. 2! And extremely ductile, bar, wire or tubing as cold worked product its strength are. Increases valve life an extremely versatile alloy that 's desirable for many different applications and.... Copper has the highest strength rating of any copper-based alloy is non-sparking but tough... Has outstanding properties in metalworking, shaping and machining properties until it reaches very temperatures! Strength alloys consist of 1.6 to2.0 % of cobalt known health hazard hardened and heat treatable tempers oxides until reaches... Pure copper and are often used as an alloying agent in the rare earth and minor metal.! Is commonly used in high performance four-stroke engines with coated titanium valves versatile alloy that 's important for in...

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