C72900 Introduction

Copper alloys are of many types. The addition of various other elements provides each alloy its distinct characteristics. The addition of nickel to a copper alloy improves strength and corrosion resistance. Copper nickel alloys are also called cupronickel alloys.

The following datasheet discusses the chemical composition and properties of copper UNS C72900.

Other Designations

Equivalent material to UNS C72900 copper alloy is ASTM B740.

Pembuatan

  • Pengelasan – Soldering, seam welding, spot welding, butt welding, coated metal arc welding, brazing, gas shielded arc welding are all excellent methods. Oxyacetylene welding can also be used.
  • Penempaan – The hot forging temperature for copper UNS C72900 alloy ranges between 649 and 871°C (1200 and 1600°F).
  • Hot working – Copper UNS C72900 alloy has good hot working abilities.
  • Cold working – Copper UNS C72900 alloy has excellent cold working properties.
  • anil – Copper UNS C72900 alloy is annealed at temperatures 824ºC (1515ºF).

Kategori:

Komposisi kimia

The chemical composition of UNS C72900 copper alloy is outlined in the following table.

Elements
Dengan(1,2)Pb(3)SnZnFeNi(4)MgM NNb
Min (%)7.514.5
Max (%)Rem0.028.50.500.5015.50.150.300.10
(1) Cu + Sum of Named Elements 99.7% min.
(2) Cu value includes Ag.
(3) 0.005% Pb max. for hot rolling.
(4) Ni value includes Co.

Mechanical Properties *

MembentukMelunakkanTemper CodeDaya tarik
(ksi)
YS-0.2% Offset
(ksi)
YS-0.5% Ext
(ksi)
YS-0.05% OffsetPemanjangan
(%)
Mengupas1/2 Hard and Spinodal Hardened (1/2 TS)TS02145 Min for Standard125 Min for Standard3 Typ
1/4 Hard and Spinodal Hardened (1/4 TS)TS01130 Min for Standard105 Min for Standard4 Typ
3/4 Hard and Spinodal Hardened (3/4 TS)TS03155 Min for Standard135 Min for Standard2 Typ
Hard and Spinodal HardenedTS04165 Min for Standard145 Min for Standard2 Typ
Mill-hardened Temper, TM – 1/2 HardTM02105 Min for Standard90 Min for Standard80 Min for Standard15 Typ
Mill-hardened Temper, TM – 1/2 HardTM0095 Min for Standard75 Min for Standard70 Min for Standard22 Typ
Mill-hardened Temper, TM – HardTM04115 Min for Standard105 Min for Standard95 Min for Standard10 Typ
Mill-hardened Temper, TM – XHMS SpringTM08150 Min for Standard140 Min for Standard125 Min for Standard2 Typ
Mill-hardened Temper, TM -XHM – Extra HardTM06130 Min for Standard120 Min for Standard105 Min for Standard6 Typ
Solution Heat TreatedTB0064 Min for Standard24 Min for Standard32 Typ
Solution Heat Treated and Cold Worked: 1/2 HardTD0285 Min for Standard8 Typ
Solution Heat Treated and Cold Worked: 1/4 HardTD0175 Min for Standard50 Min for Standard18 Typ
Solution Heat Treated and Cold Worked: 3/4 HardTD0395 Min for Standard80 Min for Standard3 Typ
Solution Heat Treated and Cold Worked: HardTD04100 Min for Standard85 Min for Standard
Spinodal Hardened-Low Strength (ATLS)TX00120 Min for Standard95 Min for Standard6 Typ
* Measured at room temperature, 68°F (20°C).

Properti fisik

Melting Point – Liquidus°F2039
Melting Point – Solidus°F1742
Densitylb/cu in. at 68°F0.323
Berat jenis8.94
Electrical Conductivity% IACS at 68°F7.8 (1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F17
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)9.1
Specific Heat CapacityBtu/ lb /°F at 68°F0.09
Modulus of Elasticity in Tensionksi18500
Modulus of Rigidityksi7500
(1)Aged condition.

Fabrication Properties

TeknikKesesuaian
PematerianBagus sekali
mematriBagus sekali
Pengelasan OxyacetyleneBagus
Pengelasan Busur Terlindung GasBagus sekali
Pengelasan Busur Logam DilapisiBagus sekali
las titikBagus sekali
las jahitanBagus sekali
Las pantatBagus sekali
Kapasitas untuk Bekerja DinginBagus sekali
Kapasitas untuk Dibentuk PanasBagus

Common Fabrication Processes

No fabrication process properties for this alloy

Sifat Termal

PerlakuanMinimum*Maksimum*
anil1515
Hot Working Temperature12001600
* Temperature is measured in Fahrenheit.

Typical uses

Kategori ProdukProdukKategori AlasanAlasan
ListrikkonektorConductivity (Electrical)Konduktivitas listrik
konektorConductivity (Thermal)Konduktivitas termal
konektorTahan korosiTahan korosi
konektorTahan korosiResistant to Oxidation
konektorMembentuk KarakteristikSifat mampu bentuk
konektorPeralatan mekanisModulus Elastisitas Tinggi
konektorPeralatan mekanisKekuatan Sangat Tinggi
konektorSifat TermalResistensi terhadap Stres Relaksasi
ContactsConductivity (Electrical)Konduktivitas listrik
ContactsConductivity (Thermal)Konduktivitas termal
ContactsTahan korosiTahan korosi
ContactsTahan korosiCorrosion Resistance to Fresh Water
ContactsTahan korosiCorrosion Resistance to Salt Water
ContactsTahan korosiResistant to Oxidation
ContactsMembentuk KarakteristikSifat mampu bentuk
ContactsPeralatan mekanisModulus Elastisitas Tinggi
ContactsPeralatan mekanisKekuatan Sangat Tinggi
ContactsSifat TermalResistensi terhadap Stres Relaksasi
ControlsConductivity (Electrical)Konduktivitas listrik
ControlsConductivity (Thermal)Konduktivitas termal
ControlsTahan korosiTahan korosi
ControlsTahan korosiCorrosion Resistance to Salt Water
ControlsPeralatan mekanisKekuatan tinggi
Miniaturized SocketsTahan korosiTahan korosi
Miniaturized SocketsMembentuk KarakteristikSifat mampu bentuk
Miniaturized SocketsPeralatan mekanisModulus Elastisitas Tinggi
Miniaturized SocketsPeralatan mekanisKekuatan Sangat Tinggi
Relay ElementsConductivity (Electrical)Konduktivitas listrik
Relay ElementsConductivity (Thermal)Konduktivitas termal
Relay ElementsTahan korosiTahan korosi
Relay ElementsTahan korosiResistant to Oxidation
Relay ElementsMembentuk KarakteristikSifat mampu bentuk
Relay ElementsPeralatan mekanisModulus Elastisitas Tinggi
Relay ElementsPeralatan mekanisKekuatan Sangat Tinggi
Relay ElementsSifat TermalResistensi terhadap Stres Relaksasi
SwitchesConductivity (Electrical)Konduktivitas listrik
SwitchesConductivity (Thermal)Konduktivitas termal
SwitchesTahan korosiTahan korosi
SwitchesTahan korosiCorrosion Resistance to Salt Water
SwitchesPeralatan mekanisKekuatan tinggi
Industrimata airTahan korosiTahan korosi
mata airTahan korosiResistant to Oxidation
mata airMembentuk KarakteristikSifat mampu bentuk
mata airPeralatan mekanisModulus Elastisitas Tinggi
mata airPeralatan mekanisKekuatan Sangat Tinggi
mata airSifat TermalResistensi terhadap Stres Relaksasi
KabelTahan korosiTahan korosi
KabelTahan korosiResistant to Oxidation
KabelMembentuk KarakteristikSifat mampu bentuk
KabelPeralatan mekanisModulus Elastisitas Tinggi
KabelPeralatan mekanisKekuatan Sangat Tinggi
MarineMarine ComponentsTahan korosiTahan korosi
Marine ComponentsTahan korosiCorrosion Resistance to Fresh Water
Marine ComponentsTahan korosiCorrosion Resistance to Salt Water
Marine ComponentsTahan korosiResistant to Oxidation
Marine ComponentsMembentuk KarakteristikSifat mampu bentuk
Marine ComponentsPeralatan mekanisModulus Elastisitas Tinggi
Marine ComponentsPeralatan mekanisKekuatan Sangat Tinggi
Marine ComponentsSifat TermalResistensi terhadap Stres Relaksasi

Spesifikasi yang Berlaku

MembentukSub-Formulir KhususAplikasiSistemStandarKeterangan
Rod & BarASMAB929COPPER-NICKEL-TIN SPINODAL ALLOY ROD AND BAR
MengupasASMAB740STRIPS, COPPER-NICKEL-TIN SPINODAL ALLOY STRIP