Brass is a copper alloy with zinc as the. Tough Copper Alloys INC. Aluminum bronze alloys typically contain 9-12% aluminum and up to 6% iron and nickel. Serves as a master alloy to add chrome to various copper alloys. 01 and 0. This chapter provides an overview of copper and copper–nickel alloys. Copper and its alloys exhibit exceptional corrosion resistance to moisture, saltwater, and a variety of chemicals. Four processes to consider when joining copper and copper alloys are mechanical couplings, welding, soldering, and brazing. Long-term steady-state corrosion rates for most copper alloys in seawater range between 0. Different types of bronze have varying proportions of these ingredients. The standard length for red brass pipe is 12 feet. Forms: 2-20 Ingot. Additional information is available upon request. What Is Copper Alloy? Copper alloy (copper alloy) is an alloy formed by adding one or more other elements to pure copper as the matrix. Number ranges available for positions 3, 4 and 5. Low-rate. 9 Mil 1941 1000+. Cast Copper Alloy Threaded Fittings: Classes 125 and 250 ISBN: 9780791833834 - Pag:40 This Standard covers cast Class 125 and 250 copper alloy threaded pipe fittings with provisions for substituting wrought copper alloys for plugs, bushings, caps, and couplings in small sized sizes. And as alloyed in bronze (copper-tin alloy) about 3000 BC, was the first engineering material known to man. 5 wt. The use of BeCu for connectors began in the 1940's and was limited to military and telecommunication applications. It offers high conductivity, good ductivity and strength. They also retain excellent impact resistance to 20 K. The zinc copper alloy contains 59% – 63% copper, around 40% zinc, and. More machinable than copper and bronze for making nuts, hinges, and locks. Forms: 2-20 Ingot. 82%), tin (5. 3 weight percent (and therefore designated as "coppers"), albeit only a handful are used industrially as electrical conductors. Chinese silver (zinc): Chinese silver is an alloy used in jewelry. 676 products. High copper alloys which contain a copper content between 99. The data compilation is based on articles published since 1993 and consists of about 1830 records. 10g – 21g. Copper is used as a conductor of heat and electricity, as. Select the alloy (s) and one or more properties you would like to see displayed. In order to systematize this colorful collection and provide a basis for specification, the National Association of Architectural Metal Manufacturers (NAAMM) and the National Ornamental & Miscellaneous Metals. The as-received copper alloys were processed by solution treatment, water quenching, cold-drawing and ageing treatment successively. This is an alphabetical list of alloys grouped according to base metal. This alloy has excellent corrosion resistance and is highly resistant to attack by acids, alkalis, and bacteria. 4 to 2% of beryllium with about 0. It is found in ore deposits around the world. Master alloys are also referred to as grain refiners, modifiers or. Copper alloys are made of a copper matrix and a combination of single alloying elements in n-ary forms. Copper-nickel Alloy. Alloys without iron, are annealed in the temperature range of 595–650 °C. The temper designations are classified by the process or processes used in manufacturing the product involved and its resulting properties. Here are the top-ranked copper alloy companies as of November, 2023: 1. 300 mm in length. In fact, one of the major "ages" or stages of human history is named for a copper alloy,. Anti-Bacterial – copper compounds have been used as bacteriostatic agents and fungicides, as well as wood preservatives. The following datasheet gives details about UNS C18150 chromium. B. The best known traditional types are bronze, where tin is a significant addition, and brass, using zinc instead. They can occur in copper alloys by surface contamination or. DJ & VJ Solutions in Victoria, BC Weddings, Reunions, Graduations, Banquets,. Whereas 90-10 Cu-Ni tubing can have a proof. Figure 3. beryllium consumption. L. Base metals are more common and more readily extracted than precious metals, which include gold, silver, platinum, and palladium. The two most familiar alloys of copper are bronze and brass. 13 wt% Zr. Chromium copper has excellent cold formability and good hot workability. S. Fig. Beryllium Copper Master Alloy. 22. Powder Type. An alloy is a material made by melting one or more metals together with other elements. Cast alloys are numbered from C80000 through C99999. These property models are needed to simulate the mechanical behavior of structures with. This system provides a six-character code, which can be digits (0) and uppercase letters (X) depending on their position (see tab. The basic properties of copper alloys are largely influenced by the properties of copper itself. 24-carat is pure gold, but it is very soft. Source: CDA, Copper Tube Handbook. Thick copper-covered steel wires exhibited a highly favorable tradeoff between the strength and electric conductivity as compared with the beryllium copper alloys. 21. Only a few metals have a success story similar to that of copper and its alloys. In 303 alloy, the chromium content is reduced to 17%, and 1% of the alloy is sulfur. Figure 2. Two types of copper alloys, namely CuCrZr (produced by Outokumpu Oy) and GlidCop® CuAl25 IG0 produced by OM6 (formerly SCM Metals) were studied. Specific Heat Capacity Btu/ lb /°F at 68°F. As a constituent of various metal alloys, such as sterling silver used in. Easily identifiable because of its iridescent, golden red color, copper and its alloys, have been used by humans for thousands of years. Incipient Melting °F. They demonstrated that pure Cu obliterated all E. These fittings shall be produced to meet the general requirements of ASTM B 62, Alloy C83600 or the chemical and. Also, please take a look at the list of 19 copper alloy manufacturers and their company rankings. Pure copper has the best electrical and thermal conductivity of any commercial metal. A new alloy was needed to fulfil these conditions and Rocketdyne developed a copper alloy based on their previous work with NARloy-A, a cast Cu-3. Nickel Silver - Alloyed with Nickel and Zinc. They have high resistance against corrosion. Coefficient of Thermal Expansion 68-392 10 to -6 power per °F (68 – 392°F) 10. The variations in color stem primarily from differences in chemical composition. The as-received copper alloys were processed by solution treatment, water quenching, cold-drawing and ageing treatment successively. Electrical Conductivity. There are approximately 3,000 nickel-based alloys in use today. Copper is a ductile and malleable reddish-gold metal with the capacity to conduct heat and electricity. coli O157 at both temperatures, and the lowest copper content to eliminate E. Pure copper has good electrical and thermal conductivity. These alloys are available in different shapes such as waffle plate, rod in coils, and ingot. 1 12. Sometimes called cupronickels, there exists a range of different copper-nickel alloys possessing different properties and useful in a range of different applications. Brazing is suitable for small parts and when high joint strength is. Laboratory testing shows that, when cleaned regularly, EPA-registered antimicrobial copper alloy surfaces kill greater than 99. , 2. Thermal conductivity and expansion characteristics are of particular interest for heat exchangers and condensers. The best-known copper alloys are bronze and brass. IBC has launched copper alloy casting at its new and expanded copper alloy foundry facility in Franklin, Indiana, which marks the effective completion of a two-year consolidation of three production facilities into a single vertically integrated copper alloys manufacturing operation. The focus of this work was to investigate. Based on this data, one can evaluate the engineering and economic viability of using specific copper alloys for fabricating fish cage nets for marine aquaculture. Both the high strength and the high conductivity Performance Alloys copper beryllium alloys are available in several wrought forms (e. 05: Silver, solid or plated; monel metal & High nickel-copper alloys: 0. The high strength copper alloys used in this work are Cu-Co-Be alloy (C17500), Cu-Ni-Si alloy and Cu-Ni-Sn alloy (C72950) respectively, as listed in Table 1. An aluminium alloy (or aluminum alloy; see spelling differences) is an alloy in which aluminium (Al) is the predominant metal. The high. Aesthetics crucial factor in development of earliest copper alloys. Base metals are any nonferrous (they contain no iron) metals that are neither precious metals nor noble metals. This section displays photo micrographs of commercially important and/or metallurgically interesting copper and copper alloys and. There are approximately four dozen different wrought alloys that contain a minimum copper content of 99. It is used where ease of welding and brazing are especially important. 8: Copper-Base Alloy - C22000 (Commercial bronze, 90%) 10. Smaller job shops often compete on price and speed, and require suppliers who can deliver the exact copper alloys. G. The most important commercial Copper Alloys are those with a content ratio 90/10 Copper Nickel and 70/30 Copper Nickel. Laboratory testing shows that, when cleaned regularly, EPA-registered antimicrobial copper alloy surfaces kill greater than 99. Higher tensile strength and hardness can only be obtained when the alloys are cold worked. 1 INCH COPPER HALF BALLS - HEMISPHERE-110 ALLOY (25 PACK) $34. Copper - From Beginning to End. The high-copper alloy family includes, in wrought forms, cadmium coppers (C16200 and C16500), beryllium coppers (C17000-C17500), chromium coppers (C18100-C18400), zirconium copper (C15000), chromium-zirconium copper (C14500) and combinations of these and other elements. This specification 2 establishes requirements for an alloy having a composition of copper, tin, lead, and zinc, used for component castings of valves, flanges, and fittings. Easily identifiable because of its iridescent, golden red color, copper and its alloys, have been used by humans for thousands of years. 13 Chrome L80, UNS S42000, is a quenched and tempered martensitic stainless steel used for corrosion resistance in sweet (CO 2) and mildly sour (H 2 S) environments up to 300°F. Free shipping on many items | Browse your favorite brands. They are easy to cast and have good strength and corrosion resistance. It is a common source of infection. The test materials (Table 1) included copper alloy mesh stock formed from a 65% copper - 35% zinc alloy (“CAM”), 97% bronze - 3% silicon welded wire mesh (“Bronze”), a stock sheet of 90% copper - 10% nickel (“Sheet”), an expanded mesh (“Mesh”) that was made from the same production run as the 90:10 Cu:Ni sheet, and conventional. Bronze is another copper alloy, but with tin. ;. It also has good conductivity and tensile strength as it can be stretched without breaking. The high conductivity of copper beryllium alloys offers considerably better conductivity’s (50-60% IACS and 145 BTU/ft·hr·°F, 250 W/m·K) at a moderate strength level of about 120,000 psi (85 kg/mm 2 ). Copper is a part of many coinage metals. Metal ores are generally oxides, sulfides, silicates (Table 12. Brazing takes place above 840 degrees F but below the melting point of the base metal. 40The mechanical properties of copper-nickel alloys show a combination of good tensile strength and excellent ductility when annealed. Hort, and B. Whereas 90-10 Cu-Ni tubing can have a proof. 3). 4989. The current trend is to develop copper alloys with higher alloy content (e. To view each alloy group, simply click on the links below: Copper & High Copper Alloys. Stubbins3 ABSTRACT This paper reviews expressions to quantify thermal creep and fatigue lifetime for four copper alloys, Cu-Ag-P, Cu-Cr-Zr, Cu-Ni-Be and Cu-Al2O3. It is easily mixed with other metals to form alloys such as bronze and brass. Table 1 provides data on some of the materials commonly used in seawater systems. 03% O2, and less than 50 ppm metallic impurities. It remains usually expressed as a percentage reduction in area. GRCop powder metal was developed by. For example, the hard bronze used in making. 3 shows the schematic illustration of the ideal texture components for copper alloy at (100), (110) and (111) standard pole figures. 22mm – 3″ square. In fact, copper is used for these purposes more often than any other metal. , 2015: 232 The density of copper (8. The powdered metal is called an. 61 shipping. , non-oxidizing atmosphere. Copper alloys become stronger and more ductile as temperature goes down. The color of copper alloy powders is a soft pink, with finished AM parts displaying that classic, copper-color glow. This is a list of copper alloys or alloys in which copper is usually the base metal. The metal is an essential trace. Sterling silver is commonly used for plating and in the jewelry industries. Other. , Inc. The ductility and malleability of copper and coppe r alloy makes them ideally suited to fabrication methods that involve severe deformation such as: Tube forming. There are inconsistencies in the Ti rich area of the Cu-Ti binary phase diagram, hence the need to find out if Ti2Cu or Ti3Cu is formed, and to identify the type of. 17%. Copper Collar DJ & VJ Services, Victoria, British Columbia. , Ni–Cr) on steel and zinc-based castings. With the aim of obtaining copper alloys with favorable mechanical properties (high strength and high ductility) for various engineering applications, the microstructural characteristics of two conventional copper alloys — an aluminum bronze (AlBC; Cu–Al 9. Joining. 5% Mg, and 0. Copper production from recycling copper and copper alloy end-of-life objects (old scrap) amounts to 15%–20% of the above. In both media, migrations are higher for lead than for other metals. % Ag-0. Based on the typical demand for advanced copper alloys by emerging industries and major engineering projects, such as electrical engineering, electronics, 5G communications, new energy vehicles, aerospace, and rail transit, this study systematically summaries the current status of international and domestic copper alloy industries, including high-strength and high-conductivity copper alloy. Different types of Copper/Silver Alloys. 8 wt% Zr alloy as an example, it has been shown that an increased contribution of grain. , 2. Brass mills make wrought compositions in the form of rod, plate, sheet, strip, tube, pipe, extrusions, foil, forgings, and wire. In the as cast form it is called electrolytic tough pitch (ETP) copper. 03% O2, and less than 50 ppm metallic impurities. Grain Size Comparisons. When there is more silver than copper, 92. Brass: 3-45% Zn by weight, it's used in musical instruments, valves, and hardware. 4. Bronze/Copper-tin. Final letter, designating material group. J. 0% beryllium and approximately 0. The other elements add a desired quality to the steel, such as hardness or tensile strength. Those are suitable to serve different purposes in many sectors. Standards: ASTM B-66, ASTM B-271, ASTM B-505, ASTM B-584, SAE 461, SAE J461, SAE J462, SAE660, DIN 2. This property of copper when added to its inherent strength, formability and corrosion resistance make it and its alloys unique in their usefulness as conductors. A freshly exposed surface of pure copper has a reddish-orange color. F. 3 Constitutional Diagram of Manganese Copper Alloys Taken From a Compilation by Hansen 8 Fig. CEN European Numbering System for copper and copper alloys, showing the preferred number ranges and letters allocated to the different material groups. ["IACS" is the International Annealed Copper Standard]. Your guide to trusted BBB Ratings, customer reviews and BBB Accredited businesses. Abstract. Li,1 B. As shown in Table 1, a variety of structural materials, including austenitic stainless steels, pipeline steels, iron-based alloys, nickel-based alloys Cr–Mo steels, aluminium alloys and copper alloys, have been considered as key technologies for the facilities of hydrogen energy facilities. Copper alloy strip used for connector components is often supplied with a tin coating. Wood. Copper zinc alloys are single phase up to about 37% zinc in the wrought condition. Copper-Zinc Alloys. 1 summarizes schematically the sequence of layers formed on copper alloys after commissioning in seawater (9). The most conductive of our metals, it excels in all types of electrical applications. 77, No. And as alloyed in bronze (copper-tin alloy) about 3000 BC, was the first engineering material known to man. The ability to extract copper from ore bodies was well-developed by 3000 BCE and critical to the growing use of copper and copper alloys. 001 mm/y), within those velocities that each alloy can tolerate without damage to the protective corrosion product film. Bulk Properties. In comparison, typical AF coatings on ships’ hulls initially release copper at a rate of about 50 µg cm −2 d −1 (Earley et al. The metal-specific migration rates from polished alloy surfaces are higher in gastric (pH 1. The long-term, steady-state corrosion rate for copper and copper alloys, except for Muntz metal, is on the order of 1 mpy (0. Aesthetics crucial factor in development of earliest copper alloys. Copper was the first metal to be worked by man, along with gold and meteoritic iron. , 234, 830–832 (1952). A freshly exposed surface of pure copper has a pinkish-orange color. International Annealed Copper Standard: 100% give 5. 5% copper (SAC305) was initially endorsed for use in SMT assembly, along with a number of other SAC alloys. In many countries, as well as the more obvious copper-colored coins, "silver" coins are also copper alloys - this time with nickel; these are known as cupronickel alloys. The copper-zinc brasses consist of a series of alloys of copper up to about 40% Zinc. Bell metal is a hard alloy used for making bells and related instruments, such as cymbals. BERYLLIUM COPPER ALLOYS ( Alloy 174 ) C17410-Alloy 174 is a mill hardened alloy. Nominal Composition. Industrial Metals. Hirabayashi, “On the Superlattices of the Cu−Au System. depending on alloy type, water chemistry, contaminants, oxygen content, pH value, microbial activity, temperature, flow rate, duration of exposure etc. 1 Significance—This classification establishes an alpha-numeric code of the tempers of copper and copper alloy products. Modulus of Elasticity in Tension ksi. 1 ). S. Brasses are copper zinc alloys containing up to about 45% zinc, with possibly small additions of lead for machinability, and tin for strength. A ABNT NBR 15827 foi elaborada no Comitê Brasileiro de Máquinas e Equipamentos Mecânicos (ABNT/CB-04), pela Comissão de Estudo de Válvulas em Geral (CE-04:009. The metal-specific migration rates from polished alloy surfaces are higher in gastric (pH 1. Final letter, designating material group. High strength and high conductivity (HSHC) Cu alloys are widely used in many fields, such as high-speed electric railway contact wires and integrated circuit lead frames. The CuCrZr alloy plate (40 mm thick) was in hot rolled condition. Bronze - Alloyed with Tin. depending on alloy type, water chemistry, contaminants, oxygen content, pH value, microbial activity, temperature, flow rate, duration of exposure etc. 2,707 products. Tensile Strength. Copper is soft but tough. This grave contains c. Figure 9 34 demonstrates the galvanic series of different commercial alloys in flowing seawater. People need copper in their diets. Shabestari et al [5] Investigate the effect of copper and solidification condition on the microstructure and mechanical properties of Al-Si-Mg alloys . 4. ,”. 20. The higher the lead content of the alloy the more lead globules present in the structure. Common Alloys . Production and forming methods may affect alloy selection. A Copper (Cu) Alloy containing Chromium (Cr) used for their high strength and corrosion resistance. Alloys are metals that are a combination of several elements. Copper and copper alloys are rendered brittle and sensitive to hot cracking if excessive amounts of low-melting impurities, notably bismuth and lead, are present. 5 Zr (wt-%) and vacuum melting and vacuum centrifugally casting [Citation 16]. 1: Copper-Base Alloy - C27000 (Yellow brass) 11. 887 products. Venn diagrams of seven samples in Yap Trench based on 16S rRNA gene sequencing at a distance of 0. overall width. % Cu) completely annihilated E. From the early days, copper had a decisive influence on the evolution of mankind and it has been the material of choice promoting the key growth industries of each era. 3. Initially used for gun making, this type of brass is also used for hydraulic and steam castings, gears, and pipes. Only a few metals have a success story similar to that of copper and its alloys. alloys (2% copper, iron, nickel): used in aircraft pistons; Hydronalium (up to 12% magnesium, 1% manganese): used in shipbuilding, resists seawater corrosion;The long-term, steady-state corrosion rate for copper and copper alloys, except for Muntz metal, is on the order of 1 mpy (0. 025 mm/y) or less, and for the copper-nickel alloys on the order of 0. Copper is one of the few metals that finds most widespread use in the pure form, rather than as an alloy. Dmitry Sergeev. The as-cast structure of the low zinc brasses consists of alpha dendrites. Alloy 10. Brass works as an alloy because copper and zinc are close to one another in the periodic table and have atoms of roughly similar size. 3 Physical Properties of Copper and Copper Alloys 671 4. Nominal Composition. A Copper (Cu) Alloy containing Chromium (Cr) used for their high strength and corrosion resistance. The metal is an essential trace. % Nb) to improve high temperature capability. 3. 5wt% has been used in A356 aluminum alloy and cast atOne of the major issues with dental implants is failure due to bacterial infection, and additions of copper are known to improve the antimicrobial properties of Ti alloys. 8% Be/Cu ) C17200: CB101: This Copper Beryllium grade offers the highest strength of any Copper alloy, with excellent ductility and formability. Copper has been an essential material to man since pre-historic times. Bronze. Antimicrobial Copper Alloys - Group I are not approved for direct food contact or food packaging uses. A useful test for such embrittlement is a hot bend test conducted at 600 °C, the. High-strength and high-conductivity copper alloys play essential roles in various industries, including the automotive industry, the railway industry, and the electronics industry [1, 2]. 2. 2. process; silver plating of beryllium copper alloys can be more expensive than other copper alloys. The main difference between alloy vs. The C19210 (F) alloy presents a low resistance in comparison with the other copper alloys used. Copper alloys There is a large number of copper alloys, with zinc (brass) and tin (bronze) being the most common. 9% of the following bacteria within 2 hours of. Copper alloys vary widely in their resistance to velocity, with C95500 being the most resistant of the cast alloys, C72200 the most resistant. Significance and Use 4. Using Cu–1. 08-cmCopper/Copper Alloys Safety Data Sheet According To Federal Register / Vol. ESA experience in copper is mostly, but not exclusively, concentrated in the design of combustion systems and burner for shaft melting furnaces, holding. O Projeto circulou em Consulta Nacional conforme Edital nº 12, de 21. g. 93 kg/dm 3 at 20 °C) varies only slightly with increasing nickel content (density of nickel at 20 °C = 8. products made from Antimicrobial Copper Alloys - Group I under EPA Registration Number 82012-1. Nickel-chromium alloys are prized for their high corrosion resistance, high-temperature strength, and high electrical resistance. Metals which have a designated minimum copper content of 99. In many countries, as well as the more obvious copper-colored coins, "silver" coins are also copper alloys - this time with nickel; these are known as cupronickel alloys. Tin plated strip is readily available from both metal producers and independent platers. 2 Fracture Toughness 673 4. Copper alloys are known for their excellent corrosion resistance, but it is not entirely immune to corrosion. So if you are going to earn £3 per kilo of scrap. Copper alloy refers to a group of materials that are formed by combining copper with one or more other elements, such as zinc, tin, nickel, aluminum, or silicon. Copper Alloys. The MRSA "superbug" is a virulent bacterium resistant to broad spectrum antibiotics and, therefore, very difficult to treat. Brasses & Bronzes. Brass, a mix of copper that contains between 5% and 45% zinc, was first used about 2,500 years ago. These alloys are then used to manufacture a variety of products in different industries. 8 wt% Cr–0. The. 4 Mechanical Properties of Copper and Copper Alloys 671 4. 110, 101, and 145 alloy grade copper types are provided. The mentioned alloys show a Cu content of above 96% for wrought alloys and 94% for cast alloys. 1. Arsenical copper Beryllium copper (beryllium) Billon (silver) Brass (zinc) Calamine brass (zinc) Chinese silver (zinc). Number range allocated to materials preferred by CEN. 02mm/yr decreasing with time as the protective surface films mature . Gold from the richest grave in the cemetery at the 5th millennium site of Varna, Bulgaria. The corrosion behavior of duplex surface treatedAZ31 magnesium alloy was studied. Typical is a 74Cu-22Pb-4Sn composite. 100 90The mechanical properties of copper-nickel alloys show a combination of good tensile strength and excellent ductility when annealed. It offers high conductivity, good ductivity and strength. Because of the properties it confers on other metals (i. Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F. Figure 3. 03. Brass (copper-zinc alloys) Brasses are copper alloys with 5-45 % zinc. However, the brazing process can be. Oxx. They are available in the form of bar, rod and plate. The single phase alloys have excellent ductility, and are often used in the cold worked condition for better strength. While this variation is quite a lot less than that for strength and conductivity, it should not be ignored. 26 - Cast Copper Alloy Fittings for Flared Copper Tubes. Brass is typically applied more widely. In variety of uses, the alloys of copper surpass all other nonferrous alloys and comprise mixtures of copper with zinc, tin, nickel, aluminum, lead, manganese, and other. 2 Use—The alphanumeric code is used to. Copper alloys are metal alloys that have copper as their principal component. The two primary copper alloys are brass and bronze. 5% zinc and 2. B164-03(2019) Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire . , 9 Paxton Court, RedwoodPark, South Australia, 5097 Telephone: +61 (0) 437 707 043. The corrosion process typically involves the formation of copper oxide or copper sulfate. The copper patina colour has been systematically explored through a large set of short- and long-term exposed copper metal samples. Copper alloys containing nickel, which can be subdivided in two groups: the Y alloy type, whose basic composition is 4% Cu, 2% Ni, 1. In order to uncover such information, we apply active learning and generate. Copper was the base material due to its ability to function as. 4989. The copper grade numbering scheme is broken down below to help and understand copper alloys and the characteristics of each sequence. An improved performance super high strength copper nickel alloy for use in offshore oil and gas and other marine environments, Tuck, C. Copper Alloys. Copper is known to possess certain unique qualities that make it the best engineering material for bearing applications. 001 mm/y). 16 bn during 2022-2026, accelerating at a CAGR of 3. strength copper-beryllium alloys and the high-conductivity copper-beryllium alloys are detailed in the following sections. Thus, when brass is said to have 28% IACS, it denotes an electrical conductivity 28% of that standard. The other key properties exhibited by Copper and its alloys include: ~ Retention of mechanical and electrical properties at cryogenic temperatures. The oral bioaccessibility of copper alloys and pure metals was assessed using in vitro methods with synthetic saliva and gastric fluid. The development of a new type of environmentally friendly, ultrahigh strength, high stress relaxation resistance, good formability, and high reliability conductive elastic copper alloy has become a research focus for elastic materials.