C64200, C642 Silicon Aluminum Bronze (AMS 4634)
C64200 Silicon Aluminum Bronze is an engineering alloy at least as resistant to corrosion as copper itself, but much stronger. CDA 642 bronze is manufactured mostly in the form of round, hexagonal, and octagonal rods for hot forming and free machining. C642 is considered to be of the best valve stem alloys. Other applications include gears, marine hardware, nuts, pole line hardware, and valve bodies and components.
- EU Designation: CuAl7Si2, CW302G
- ASTM B150, ASTM B249, QQ-C-465, AMS 4634, SAE J461, SAE J463
Typical Uses for C64200 Silicon Aluminum Bronze:
AUTOMOTIVE: Valve Guides, Automobile Engine
ELECTRICAL: Pole Line Hardware
FASTENERS: Bolts, Nuts
INDUSTRIAL: Valve Components, Valve Bodies, Gears, Valve Stems, Cams
MARINE: Hardware
Aluminum is the main alloying metal added to copper in aluminum bronze alloys such as C64200, also known as C642. A variety of aluminum bronzes of differing compositions have found industrial use, with most ranging from 5.00% to 11.00% aluminum by weight, the remaining mass being copper. Other alloying agents such as iron, nickel, manganese, and silicon are also oftentimes added. Aluminum bronzes are most valued for their high strength and corrosion resistance.
AMS 4634-C64200
Product description: Aluminum bronze
Tempers: HR50 drawn and stress relieved
Solids: 3/16″ to 6″ O.D.
Hex: 1/2″ to 2″ O.D.
Standard lengths: 144″
Kegunaan yang khas
Automotive: valve guides (automobile engine)
Electrical: pole line hardware
Fasteners: bolts, nuts
Industrial: cams, gears, valve bodies, valve components, valve stems
Marine: hardware
Spesifikasi serupa atau setara
| CDA | ASMA | SAE | AMS | Federal | Militer | Lainnya |
|---|---|---|---|---|---|---|
| C64200 | B150 B150M | J461 J463 | 4634 | QQ-C-465 |
Komposisi kimia
| Cu%1 | Pb% | Sn% | Zn% | Fe% | Ni%2 | Al% | Mn% | Dan% | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
1Cu value includes Ag. 2Ni value includes Co. Catatan: Cu + jumlah elemen bernama, min 99,5%. Nilai tunggal mewakili nilai maksimum. | |||||||||||
| Rem. | 00,05 | 0.20 | 00,50 | 0.30 | 0.25 | 6.30- 7.60 | 0.10 | 1.50- 2.20 | |||
Kemampuan mesin
| Paduan tembaga UNS No. | Peringkat kemampuan mesin | Kepadatan (lb/in3 pada 68 °F) |
|---|---|---|
| C64200 | 60 | 0.278 |
Peralatan mekanis
C64200
HR50 drawn and stress relieved Temper
Size range: up to 1/2″ bars and rods inclusive
| Kekuatan tarik, min | Kekuatan hasil, pada ekstensi 0,5% di bawah beban,, min | Elongation, in 4D, min | Hardness, internal | Perkataan | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 90 | 621 | 45 | 310 | 9 | >80 inclusive | |
Size range: 1/2″ to 1″ bars and rods inclusive
| Kekuatan tarik, min | Kekuatan hasil, pada ekstensi 0,5% di bawah beban,, min | Elongation, in 4D, min | Hardness, internal | Perkataan | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 85 | 586 | 45 | 310 | 12 | >80 inclusive | |
Size range: over 1″ to 2″ bars and rods inclusive
| Kekuatan tarik, min | Kekuatan hasil, pada ekstensi 0,5% di bawah beban,, min | Elongation, in 4D, min | Hardness, internal | Perkataan | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 80 | 552 | 42 | 290 | 12 | >80 inclusive | |
Size range: over 2″ to 3″ bars and rods inclusive
| Kekuatan tarik, min | Kekuatan hasil, pada ekstensi 0,5% di bawah beban,, min | Elongation, in 4D, min | Hardness, internal | Perkataan | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 75 | 517 | 35 | 241 | 15 | >80 inclusive | |
Properti fisik
Sifat fisik disediakan oleh CDA | |||||||||||
| Adat AS | Metrik | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Titik lebur – cair | 1840 °F | 1004 °C | |||||||||
| Titik lebur – solidus | 1800 °F | 982 °C | |||||||||
| Kepadatan | 0.278 lb/in3 at 68 °F | 7.69 gm/cm3 at 20 °C | |||||||||
| Berat jenis | 7.69 | 7.69 | |||||||||
| Konduktivitas listrik | 8% IACS at 68 °F | 0.047 MegaSiemens/cm at 20 °C | |||||||||
| Konduktivitas termal | 26 Btu/sq ft/ft hr/°F at 68 °F | 45 W/m at 20 °C | |||||||||
| Koefisien muai panas 68-572 | 10 · 10-6 per °F (68-572 °F) | 17.3 · 10-6 per °C (20-300 °C) | |||||||||
| di antaranya 06Cr19Ni10 umumnya berarti produksi standar Cina | 00,09 Btu/lb/°F pada 68 °F | 377,1 J/kg pada 20 °C | |||||||||
| Modulus elastisitas tegangan | 16000ksi | 110317 MPa | |||||||||
| Modulus of rigidity | 6000 ksi | 41369 MPa | |||||||||
Properti fabrikasi
Properti fabrikasi disediakan oleh CDA | |||||||||||
| Teknik | Kesesuaian | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pematerian | Tidak direkomendasikan | ||||||||||
| mematri | Adil | ||||||||||
| Pengelasan oksiasetilen | Tidak direkomendasikan | ||||||||||
| Pengelasan busur terlindung gas | Adil | ||||||||||
| Pengelasan busur logam berlapis | Adil | ||||||||||
| Pengelasan titik | Adil | ||||||||||
| Las jahitan | Adil | ||||||||||
| Pengelasan pantat | Adil | ||||||||||
| Kapasitas untuk pengerjaan dingin | Miskin | ||||||||||
| Wadah untuk dibentuk panas | Bagus sekali | ||||||||||
| Peringkat Kemudahan untuk Ditempa | 80 | ||||||||||
| Peringkat kemampuan mesin | 60 | ||||||||||
Sifat termal
Sifat termal disediakan oleh CDA *Suhu diukur dalam Fahrenheit. | |||||||||||
| Perlakuan | Minimum* | Maksimum* | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| anil | 1100 | 1300 | |||||||||
| Perawatan panas | 1300 | 1600 | |||||||||
Common fabrication processes
Forging, hot forming, machining
Proses fabrikasi umum disediakan oleh CDA
