CuNi12Zn24: Oöverträffad hållbarhet och styrka i en och samma legering

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Innehållsförteckning

When it comes to selecting materials for engineering och industrial applications, choosing the right alloy can make all the difference. One such alloy that delivers on strength, durability, and versatility is CuNi12Zn24. This copper-based alloy, containing nickel and zinc, is known for its corrosion resistance, workability, och excellent mechanical properties. Whether you’re designing components for marine environments, electrical systems, or precision machinery, understanding the ins and outs of CuNi12Zn24 is essential.

In this comprehensive guide, we’ll break down the sammansättning, properties, applications, och specifications of CuNi12Zn24. We’ll also discuss its advantages, limitations, and how it compares to similar alloys. By the end of this guide, you’ll have a clear understanding of whether CuNi12Zn24 is the right material for your project.


Översikt

CuNi12Zn24 is a copper-nickel-zinc alloy—also sometimes referred to as a type of nickel silver. Despite the name, nickel silver doesn’t contain any actual silver. Instead, it gets its name from its silvery appearance attributed to the nickel content. This alloy is widely used in various industries due to its unique combination of styrka, korrosionsbeständighet, och aesthetic appeal.

Key Features :

  • Corrosion Resistant: Performs well in marine environments and other corrosive conditions.
  • Hög hållfasthet: Offers mechanical strength comparable to other high-performance alloys.
  • Bearbetbarhet: Easy to machine, making it ideal for precision components.
  • Aesthetic Appeal: Its silvery finish is often used in decorative applications.
  • Versatile Applications: Used in industries ranging from electronics till automotive och marine engineering.

Sammansättning och egenskaper

Like most copper alloys, the composition of CuNi12Zn24 plays a significant role in its mekanisk och physical properties. The addition of nickel improves korrosionsbeständighet och styrka, while zinc enhances the alloy’s ductility och formability.

Composition Breakdown

ElementProcentuell andel (%)
Koppar (Cu)64
Nickel (Ni)12
Zink (Zn)24

This combination of metals creates a robust and versatile alloy that can withstand harsh environments while maintaining workability.

Mechanical and Physical Properties

FastighetVärde
Draghållfasthet380 – 500 MPa
Utbyteshållfasthet120 – 180 MPa
Töjning20 – 35%
Hardness (HB)100 – 150 HB
Täthet~8.6 g/cm³
Termisk konduktivitet50 – 60 W/m·K
Elektrisk konduktivitet10-30% IACS
Smältpunkt950°C – 1050°C

Key Insights on the Properties:

  • Strength and Ductility: CuNi12Zn24 provides a good balance between styrka och flexibility, making it ideal for applications that require durability but also formability.
  • Motståndskraft mot korrosion: The nickel content significantly enhances the alloy’s ability to resist corrosion, especially in marine och industrial environments.
  • Thermal and Electrical Conductivity: While not as conductive as pure copper, CuNi12Zn24 still offers sufficient värmeledningsförmåga for applications requiring heat dissipation.

Tillämpningar

CuNi12Zn24’s unique blend of properties makes it suitable for a wide range of industries. From marine engineering where corrosion resistance is key, to decorative applications where its aesthetic appeal shines, CuNi12Zn24 is a versatile choice for manufacturers and engineers.

Vanliga tillämpningar

IndustriTypiska tillämpningar
Marin teknikPropellers, marine hardware, seawater piping systems
ElektronikConnectors, conductive parts, terminals
Flyg- och rymdindustrinBearings, bushings, hydraulic systems
FordonDecorative trim, precision machined parts
ArkitekturDecorative hardware, fittings, handrails
MusikinstrumentBrass instruments, strings, valves

Why CuNi12Zn24 Is Used in These Applications

  • Marin teknik: Its korrosionsbeständighet makes it perfect for applications exposed to seawater and other harsh environments.
  • Elektronik: CuNi12Zn24 is used in terminals och connectors where mechanical strength och conductivity are important.
  • Flyg- och rymdindustrin och Fordon: The alloy’s styrka och wear resistance make it suitable for high-stress components such as bearings och bushings.

Specifikationer, storlekar och standarder

CuNi12Zn24 is available in several forms och sizes to accommodate the specific needs of various industries. Let’s take a look at the standards och specifications commonly associated with this alloy.

Specifikationer och standarder

SpecifikationDetaljer
Common FormsRods, Sheets, Tubes, Plates
Diameter Range (Rods)6 mm to 200 mm
Thickness Range (Sheets)0.5 mm to 20 mm
Length (Bars)Up to 6 meters
StandarderASTM B206, DIN 17660, EN 12420

The above standards ensure that CuNi12Zn24 meets industry requirements in terms of sammansättning, mechanical properties, och dimensional tolerances.

Betyg

BetygAttribut
CuNi12Zn24-SoftExcellent machinability, good formability
CuNi12Zn24-HardIncreased strength, better wear resistance

Forms and Sizes Available

  • Stavar: Typically used for precision machining in industries such as automotive och electronics.
  • Lakan: Commonly used in decorative applications och architectural hardware.
  • Rör: Used in marine och flyg- och rymdindustrin applications for piping och fluid systems.

Leverantörer och prissättning

The price of CuNi12Zn24 can vary depending on several factors, including the form (rods, sheets, plates), the grade (soft or hard), and the supplier’s location. Below, we’ll provide an overview of common suppliers and typical pricing for this alloy.

Leverantörer och prisinformation

LeverantörPlatsPrisintervall (per kg)Typical Lead Time
Metals4USTORBRITANNIEN$12 – $252-3 weeks
Shanghai MetalsKina$10 – $223-4 veckor
Stormarknader för metallUSA$15 – $301-2 veckor
EuroAlloysEuropa€14 – €324-6 veckor

Factors Affecting the Price

  • Form: Sheets and plates tend to be more expensive than rods due to the processing required to produce them.
  • Betyg: Hard grades typically cost more due to the additional processing needed to achieve higher strength.
  • Supplier Location: Prices can vary significantly based on the location of the supplier och shipping costs.

För- och nackdelar: Fördelar och begränsningar

Fördelar och begränsningar

FördelarBegränsningar
Utmärkt korrosionsbeständighetLower electrical conductivity compared to pure copper
Hög strength and ductilityDyrare than simpler copper alloys like brass
Bra workability and machinabilityTyngre than some alternative materials
Attractive silvery finish for aestheticsNot suitable for applications requiring high conductivity
Versatile in marine och industrial useNickelinnehåll may raise concerns for some applications

Insights on the Benefits and Drawbacks

  • CuNi12Zn24 is a fantastic option for marine och industrial applications where korrosionsbeständighet och styrka are key. However, it’s not the best choice for applications that require high electrical conductivity eller lightweight materials.
  • Aesthetic applications benefit from its silvery appearance, making it a great choice for decorative hardware och architectural fittings.

CuNi12Zn24 vs. Other Copper Alloys

How does CuNi12Zn24 stack up against other copper alloys? Let’s compare it to some common alternatives, such as CuNi18Zn20, CuZn39Pb3, och CuNi10Fe1Mn.

Comparison of CuNi12Zn24 with Other Copper Alloys

FastighetCuNi12Zn24CuNi18Zn20CuZn39Pb3 (Brass)CuNi10Fe1Mn
Draghållfasthet380 – 500 MPa400 – 520 MPa300 – 450 MPa350 – 500 MPa
Utbyteshållfasthet120 – 180 MPa150 – 250 MPa150 – 300 MPa100 – 250 MPa
Töjning20 – 35%15 – 30%20 – 30%25 – 35%
Motståndskraft mot korrosionUtmärktUtmärktMåttligUtmärkt
BearbetbarhetBraMåttligMycket braMåttlig
Elektrisk konduktivitet10-30% IACS8-20% IACS28-35% IACS5-15% IACS

Viktiga lärdomar från jämförelsen

  • CuNi12Zn24 provides a solid balance between styrka, ductility, och korrosionsbeständighet, making it comparable to alloys like CuNi18Zn20 och CuNi10Fe1Mn.
  • CuZn39Pb3, often referred to as brass, offers better machinability but lower korrosionsbeständighet, making it less suitable for marine environments.
  • CuNi12Zn24 outperforms brass in korrosionsbeständighet och styrka, making it a better choice for harsh environments.

Vanliga frågor och svar (FAQ)

To help you further understand CuNi12Zn24, we’ve compiled a list of frequently asked questions to address common concerns and queries.

FrågaSvar
What is CuNi12Zn24 used for?It is widely used in marine hardware, electronics, automotive parts, och decorative applications due to its unique properties.
Does CuNi12Zn24 corrode easily?No, it has excellent korrosionsbeständighet, especially in marine environments.
Is CuNi12Zn24 easy to machine?Yes, it has good machinability, particularly in its soft grade.
How much does CuNi12Zn24 cost?Pricing typically ranges from $10 to $30 per kg, depending on the form och supplier.
Can CuNi12Zn24 be used in electrical applications?While it has some elektrisk ledningsförmåga, it’s not as conductive as pure copper or brass, so it’s not ideal for high-conductivity applications.
What are the main properties of CuNi12Zn24?It offers a combination of hög hållfasthet, good corrosion resistance, ductility, och workability.

Slutsats

CuNi12Zn24 is a high-performance copper alloy that excels in marine, industrial, och decorative applications. Its unique composition of copper, nickel, and zinc gives it a balance of strength, corrosion resistance, and machinability that makes it suitable for a wide range of uses. Whether you’re looking for a material that can withstand harsh environments, provide a silvery aesthetic, or perform well in precision machining, CuNi12Zn24 is a top contender.

While it may be more expensive than simpler alloys like brass, its superior properties make it well worth the investment for applications where performance och durability are paramount. Now that you have a full understanding of CuNi12Zn24, you’re ready to make an informed decision for your next project!

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