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Metal Alloy

Metallic copper

Copper is a transition element with atomic number 29, chemical symbol Cu. Pure copper is a soft metal, the surface is reddish-orange with metallic luster when first cut, and the element is purple-red. Density 8.92 g/cm³. Melting point 1083.4±0.2 °C, boili
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Description

What is metallic copper?

Copper is a transition element with atomic number 29, chemical symbol Cu. Pure copper is a soft metal, the surface is reddish-orange with metallic luster when first cut, and the element is purple-red. Density 8.92 g/cm³. Melting point 1083.4±0.2 °C, boiling point 2567 °C.

 


metallic copper

 

What are the advantages of copper metal?

Copper has good ductility, high thermal and electrical conductivity, and is a non-ferrous metal that is very closely related to human beings

 
Category Property Value/Specification
Physical Properties Atomic Number 29
  Atomic Weight 63.55 g/mol
  Crystal Structure Face-centered cubic (FCC)
  Density at 20°C 8.96 g/cm³
  Melting Point 1,084.62°C (1,984.32°F)
  Boiling Point 2,562°C (4,644°F)
  Color Reddish-orange
  Luster Metallic
Mechanical Properties Tensile Strength (annealed) 210-230 MPa
  Yield Strength (annealed) 70 MPa
  Hardness (Brinell) 35-45 HB
  Elongation 40-50%
  Young's Modulus 117 GPa
  Poisson's Ratio 0.34
  Shear Modulus 44 GPa
Electrical Properties Electrical Conductivity 5.96 × 10⁷ S/m
  Electrical Resistivity 1.68 × 10⁻⁸ Ω·m
  Electron Configuration [Ar] 3d¹⁰ 4s¹
  Magnetic Ordering Diamagnetic
Thermal Properties Thermal Conductivity 401 W/(m·K)
  Coefficient of Thermal Expansion 16.5 × 10⁻⁶ K⁻¹
  Specific Heat Capacity 0.385 J/(g·K)
  Heat of Fusion 13.26 kJ/mol
  Heat of Vaporization 300.4 kJ/mol
Chemical Properties Oxidation States +1, +2 (most common)
  Electronegativity (Pauling Scale) 1.90
  Atomic Radius 128 pm
  Ionic Radius Cu¹⁺: 77 pm, Cu²⁺: 73 pm
  Corrosion Resistance Good in normal atmosphere
  Common Reactions - Oxidizes in air (forms patina)
    - Reacts with acids
    - Reacts with halogens
    - Forms complex ions
Nuclear Properties Isotopes Cu-63 (69.17%)
    Cu-65 (30.83%)
Surface Properties Surface Tension (liquid at m.p.) 1.355 N/m
  Work Function 4.53-5.10 eV

What are the applications of copper metal?

Copper is widely used in electrical, light industry, machinery manufacturing, construction industry, defense industry and other fields, can also be used as building materials, can be composed of a variety of alloys.

 

applications of copper metal

 
 

Luoyang Trunnano Tech Co., Ltd. uses oxygen-free copper and pure copper as the main raw materials for its products.

Oxygen-free copper has No. 1 oxygen-free copper, the purity reaches 99.97%, the oxygen content is not more than 0.003%, and the total content of impurities is not more than 0.03%; the purity of oxygen-free copper No. 2 reaches 99.95%, the oxygen content is not more than 0.003%, and the total content of impurities is not more than 0.05%. The oxygen content is not more than 0.003%, the total impurity content is not more than 0.05%, and the purity of copper is greater than 99.95%.


Oxygen-free copper is widely used in the electronics industry, and in vacuum electronic devices, oxygen-free copper has ranked first among the seven structural materials in this field. The grades are C10200 and C10300.


Pure copper does not contain oxygen or any oxygen absorber residue, but it still contains a very small amount of oxygen and some impurities. Copper with the highest copper content, because the color purple-red is also known as copper, adds a small number of deoxidation elements or other elements to improve the material and performance; the main component is copper plus silver, and the content is 99.5~99.95%; Main impurity elements: phosphorus, bismuth, antimony, arsenic, iron, nickel, lead, tin, sulfur, zinc, oxygen, etc.;


It is used to make conductive equipment, thermal conductive equipment, advanced copper, and copper-based alloys. Pure bronze grades are T1, C11000.

Pure copper and thermal conductivity are relatively good, and there is also very good corrosion resistance and weldability. Pure copper is mainly used to make electrical equipment such as generators, busbars, cables, switchgear, transformers and heat exchangers, pipelines, flat collectors of solar heating devices, and other heat conductive equipment.


The elemental content of raw materials in each grade is as follows:
 
Trademark T1 C11000 C10200 C10300 C12000 C12200
Element content Cu+Ag(≥) 99.95 99.9 99.97 99.95 99.9 99.9
P(≤) 0.001   0.002 0.002 0.004-0.012 0.015-0.04
Bi(≤) 0.001 0.001 0.001 0.001 0.002 0.002
Sb(≤) 0.002 0.002 0.002 0.002 0.002 0.002
As(≤) 0.002 0.002 0.002 0.002 0.002 0.005
Fe(≤) 0.005 0.005 0.004 0.004 0.01 0.05
Ni(≤) 0.002 0.005 0.002 0.002 0.005 0.01
Pb(≤) 0.003 0.005 0.003 0.004 0.005 0.005
Sn(≤) 0.002 0.002 0.002 0.002 0.002 0.01
S(≤) 0.005 0.005 0.004 0.004 0.005 0.005
Zn(≤) 0.005 0.005 0.003 0.003 0.003 0.003
O(≤) 0.02 0.06 0.002 0.003 0.01 0.01
 
What are the characteristics of each grade material and the field of use:
 
Trademark Characteristic Fields of application
C11000 It has good electrical conductivity, thermal conductivity, corrosion resistance and processing properties, and can be welded and brazing. Impurities containing reduced electrical and thermal conductivity are small, and trace amounts of oxygen have little effect on electrical conductivity, thermal conductivity and processing properties, but it is easy to cause "hydrogen disease", and it is not easy to process (annealing, welding, etc.) and use in a high temperature (such as 370 °C) reducing atmosphere. Used in electrical, thermally conductive and corrosion-resistant equipment. Such as: wires, cables, conductive screws, detonators for blasting, chemical evaporators, storage devices and various pipelines
C10200、C10300 It has high purity, excellent electrical and thermal conductivity, no "hydrogen disease" or very little "ammonia disease" (no hydrogen embrittlement), good processing performance and welding, corrosion resistance and cold resistance It is mainly used as electric vacuum instrumentation devices, various hardware products, lamps, pipe fittings, zippers, plaques, rivets, springs, settlement filters, etc
C12000 Its welding performance and cold bending performance are good, generally no "hydrogen disease" tendency, can be processed and used in a reducing atmosphere, but not suitable for processing and use in an oxidizing atmosphere. The residual phosphorus content of C12000 is less than that of C12200, so its electrical and thermal conductivity is higher than that of C12200. It is mainly used in pipes, but can also be supplied as plates, strips or rods and wires. Used as gasoline or gas transmission pipes, drain pipes, condensation pipes, mine pipes, condensers, evaporators, heat exchangers, train car parts.
C12200
 
The product of TRUNNANO has copper busbars, copper extrusions, copper bar,copper rod, copper pole,soft connections.TRUNNANO(aka. Luoyang Tongrun Nano Technology Co., Ltd.) is a trusted global material supplier and manufacturer with more than 12 years of experience in providing ultra-high quality materials. At present, our company has successfully developed a series of metal materials. Provide OEM services. If you are looking for copper, please contact us. Or click on the desired product to send us an inquiry.

FAQs of Metallic copper

What is metallic copper and what are its common uses?
A:Metallic copper is a pure form of the element copper, which is a reddish-orange metal known for its excellent electrical and thermal conductivity. It is widely used in electrical wiring, plumbing, and various industrial applications due to its durability and resistance to corrosion. Copper is also a key component in alloys such as brass and bronze.

How does metallic copper resist corrosion?
A:Although metallic copper can tarnish when exposed to air and moisture, forming a green patina known as verdigris, it has good resistance to atmospheric corrosion compared to many other metals. The formation of this patina actually protects the underlying metal from further degradation. In environments with low levels of pollutants, copper can maintain its integrity for decades.

Is metallic copper safe for use in food and water applications?
A:Yes, metallic copper is considered safe for use in food preparation surfaces and water systems. It has natural antimicrobial properties that help inhibit the growth of bacteria and other microorganisms, making it a popular choice for kitchen countertops, sink faucets, and water pipes. However, it's important to ensure that any coatings or treatments applied to copper do not contain harmful substances.

Can metallic copper be recycled, and why is this important?
A:Yes, metallic copper is highly recyclable without loss of quality. Recycling copper helps conserve natural resources, reduces energy consumption and waste, and minimizes environmental impact compared to mining and processing new ore. Recycled copper is used in a wide range of products, maintaining its value and utility in the global market.

 

 

 

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