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UNS C75200 Copper Nickel Chemical Composition, Grades, Chart and Pdf

ASTM B122 is a standard for seamless and welded copper-nickel pipes with C75200 maturity levels for use in pressure vessels, condensers, and heat transfer processes. Therefore, a copper-nickel alloy (70% Cu and 30% Ni), with minor amounts of manganese and iron constitutes this alloy called 70/30 Copper-Nickel. The alloy C75200 possesses great corrosion-resistance feature under marine conditions and that explains why it is most suitable for offshore and ship construction purposes. ASTM B122 standard dictates the chemical composition, mechanical properties, dimensions, interpretations, testing methodology for such tubes. C75200 standards serve as a benchmark for engineers and manufacturers for consistent quality and performance of the tubes in the wide range of industrial sectors you specified. Detailed information such as chemical content, grade, charts and pdf documents can be found in ASTM B122 standardization that is contained in the documentation.

C75200 Coppers Chemical Composition And Grade Table

C75200 corrosion-resistant copper, commonly referred to as a 70/30 copper-nickel, has about 70% copper, 30% nickel, and small amount of iron and manganese. This table of composition details provides different grades and their equivalent chemical compositions, which will be useful in leakage designing and manufacturing for the engineers and manufacturers. Deciphering C75200 composition as to what grade suits specific application will help the material's suitability and performance to be assured in various industrial settings.

C75200 Copper Composition Table
Elements Cu Pb Zn Fe Ni Mn
Min (%) 63.0 - - - 16.5 -
Max (%) 66.5 0.05 Rem 0.25 19.5 0.50

The Advantages and Disadvantages of ASTM B122 C75200 Copper Material Properties, C75200 Properties

    Advantages:

  • Exceptional Electrical Conductivity: Copper OFE C75200 has an extremely high electric conductivity that makes it suitable for difficult electrical applications of the highest efficiency.

  • Soft Material: On the other hand, it is due to its natural softness that you can easily shape, bend, and form machine parts during fabrication, while the strength of the end product is not impaired.

  • Impressive Thermal Conductivity: The C75200 alloy features exceptional properties related to thermal conductivity, and therefore it can optimally serve for example radiators, heat exchangers, or other heat transfer devices.

  • Reasonable Corrosion Resistance: Although significantly more corrosion resistant compared to some other copper alloys, C75200 is only reasonably protected from environmental deterioration.

  • Susceptibility to Oxidation: The OFHC C75200 copper, unlike other copper alloys, is highly pure, and thus there is an increased risk of oxidation when it comes into contact with air or moisture- requiring proper handling and storage methods.

    Disadvantages:

  • High Cost: Oxygen-free copper (OFC) is one of the alloying element types that provides a good resistance to corrosion and can cost more than certain other copper alloys, like C75200, since it's considered as a pure form.

  • Limited Strength: C75200 material generally need to be moulded under temperature, just like the actions of soft-jelly products, thus there are difficulties in applications requiring high mechanical strength.

  • Not Ideal for High-Stress Environments: Its weak character and its susceptibility to corrosion turn it unsuitable for structural components of significant weight bearing.

  • Limited Work Hardening Ability: The C75200 copper yields negligible work hardening effect after undergoing plastic deformation; it has a strong resistance to change in either its strength or toughness.

  • Susceptibility to Stress Corrosion Cracking: The copper alloy C75200 gives satisfactorily results for general corrosion resistance, however, they might occur if you have specific circumstances where this alloy could be subjected to SCC (Stress Corrosion Cracking).

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Frequently Asked Questions

FAQs
What does ASTM B122 C75200 Copper refer to?

ASTM B122, C75200 is a product definition of seamless copper alloy plates, sheets, strips, and rolled bars. The paper focuses on alloy C75200, popularly known as oxygen-free copper or OFE copper, which has a distinctive attribute of high electrical conductivity and an appropriate use for various industries.

Which are the Main Chemical Elements of C75200 Copper?

Copper (Cu), Lead (Pb), Zinc (Zn), Iron (Fe), Nickel (Ni) and Manganese (Mn)

Why do you need to choose C75200 Copper?

C75200 copper is preferred for its spectacular electrical conductivity, bending ease, excellent heat transfer ability, and compatibility with normal corrosion immune environments. Thus, it is suitable for such projects that need properties of conductivity primarily and at equal measure those of heat transfer.

What process for C75200 copper production?

C7520 copper is usually a commodity that is sequentially processed from melting, refining, forming and then hot or cold working into different products like sheets, strips, rods, and wires.

Is the C75200 alloy suitable for use in harsh conditions?

Although C75200 has relatively high general corrosion resistance, its weaker strength and vulnerability to oxidation might make it less desirable for long-term use in harsh elements. Environment influences human performance. Therefore, it is recommended to consider the environment with all due diligence for the ultimate performance.

Is the C75200 alloy easily available in Mumbai, India?

Yes, C75200 alloy is in the market in Mumbai, India through many metal suppliers and distributors who thrive in stocking it for their customers especially industries and manufacturers.

Raw Material Prices (Updated as on: 15 May 2024 02:29 AM) LIVE RATES

MetalsPrice/TonnePrice/KG
Nickel$18,895₹1,577.63
LME$19,101₹1,594.81
Copper$10,700₹893.37
LME$10,121₹845.05
Aluminum$2,540₹212.07
LME$2,550₹212.87
Zinc$2,974₹248.31
LME$2,961₹247.23
Lead$2,257₹188.45
LME$2,234₹186.57

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