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
ELEKTRISCH: Pole Line Hardware
BEFESTIGUNGEN: Bolts, Nuts
INDUSTRIE: 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″
Typische Verwendungen
Automotive: valve guides (automobile engine)
Electrical: pole line hardware
Fasteners: bolts, nuts
Industrial: cams, gears, valve bodies, valve components, valve stems
Marine: hardware
Ähnliche oder gleichwertige Spezifikation
| CDA | ASTHMA | SAE | AMS | Bundes | Militär | Sonstiges |
|---|---|---|---|---|---|---|
| C64200 | B150 B150M | J461 J463 | 4634 | QQ-C-465 |
Chemische Zusammensetzung
| Cu%1 | Pb% | Sn% | Zn% | Fe% | Ni%2 | Al% | Mn% | Si% | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
1Cu value includes Ag. 2Ni value includes Co. Hinweis: Cu + Summe der genannten Elemente, 99,5 % min. Einzelwerte stellen Maxima dar. | |||||||||||
| Rem. | 0.05 | 0.20 | 0.50 | 0.30 | 0.25 | 6.30- 7.60 | 0.10 | 1.50- 2.20 | |||
Bearbeitbarkeit
| Kupferlegierung UNS Nr. | Bearbeitbarkeitsbewertung | Density (lb/in3 at 68 °F) |
|---|---|---|
| C64200 | 60 | 0.278 |
Mechanische Eigenschaften
C64200
HR50 drawn and stress relieved Temper
Size range: up to 1/2″ bars and rods inclusive
| Zugfestigkeit, min | Yield strength, at 0.5% extension under load,, min | Elongation, in 4D, min | Hardness, internal | Bemerkungen | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 90 | 621 | 45 | 310 | 9 | >80 inclusive | |
Size range: 1/2″ to 1″ bars and rods inclusive
| Zugfestigkeit, min | Yield strength, at 0.5% extension under load,, min | Elongation, in 4D, min | Hardness, internal | Bemerkungen | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 85 | 586 | 45 | 310 | 12 | >80 inclusive | |
Size range: over 1″ to 2″ bars and rods inclusive
| Zugfestigkeit, min | Yield strength, at 0.5% extension under load,, min | Elongation, in 4D, min | Hardness, internal | Bemerkungen | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 80 | 552 | 42 | 290 | 12 | >80 inclusive | |
Size range: over 2″ to 3″ bars and rods inclusive
| Zugfestigkeit, min | Yield strength, at 0.5% extension under load,, min | Elongation, in 4D, min | Hardness, internal | Bemerkungen | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | HRB | |
| 75 | 517 | 35 | 241 | fünfzehn | >80 inclusive | |
Physikalische Eigenschaften
Von CDA bereitgestellte physikalische Eigenschaften | |||||||||||
| US-üblich | Metrisch | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Schmelzpunkt – flüssig | 1840 °F | 1004 °C | |||||||||
| Schmelzpunkt – Solidus | 1800 °F | 982 °C | |||||||||
| Dichte | 0.278 lb/in3 at 68 °F | 7.69 gm/cm3 at 20 °C | |||||||||
| Spezifisches Gewicht | 7.69 | 7.69 | |||||||||
| Elektrische Leitfähigkeit | 8% IACS at 68 °F | 0.047 MegaSiemens/cm at 20 °C | |||||||||
| Wärmeleitfähigkeit | 26 Btu/sq ft/ft hr/°F at 68 °F | 45 W/m at 20 °C | |||||||||
| Wärmeausdehnungskoeffizient 68-572 | 10 · 10-6 per °F (68-572 °F) | 17.3 · 10-6 per °C (20-300 °C) | |||||||||
| Spezifische Wärmekapazität | 00,09 Btu/lb/°F bei 68 °F | 377,1 J/kg bei 20 °C | |||||||||
| Elastizitätsmodul bei Zug | 16000 ksi | 110317 MPa | |||||||||
| Steifigkeitsmodul | 6000 ksi | 41369 MPa | |||||||||
Herstellungseigenschaften
Von CDA bereitgestellte Herstellungseigenschaften | |||||||||||
| Technik | Eignung | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Löten | Not recommended | ||||||||||
| Hartlöten | Gerecht | ||||||||||
| Autogenschweißen | Not recommended | ||||||||||
| Schutzgasschweißen | Gerecht | ||||||||||
| Beschichtetes Metalllichtbogenschweißen | Gerecht | ||||||||||
| Punktschweißen | Gerecht | ||||||||||
| Nahtschweißung | Gerecht | ||||||||||
| Stumpfschweißung | Gerecht | ||||||||||
| Fähigkeit zur Kaltumformung | Arm | ||||||||||
| Fähigkeit zur Warmumformung | Exzellent | ||||||||||
| Fälschbarkeitsbewertung | 80 | ||||||||||
| Bearbeitbarkeitsbewertung | 60 | ||||||||||
Thermische Eigenschaften
Von CDA bereitgestellte thermische Eigenschaften *Die Temperatur wird in Fahrenheit gemessen. | |||||||||||
| Behandlung | Minimum* | Maximal* | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Glühen | 1100 | 1300 | |||||||||
| Hot treatment | 1300 | 1600 | |||||||||
Gängige Herstellungsprozesse
Forging, hot forming, machining
Gängige Herstellungsprozesse, bereitgestellt von CDA
