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CuAl7Si2 - Cupro Alu

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CuAl7Si2 - Cupro Alu

ASTM B150; ASTM B249; QQ-C-465; AMS 4631; AMS 4634

EU Designation: CuAl7Si2, CW302G

Le C64200 est un alliage d'ingénierie au moins aussi résistant à la corrosion que le cuivre mais beaucoup plus fort. Le C642 est principalement fabriqué sous forme de tiges rondes, hexagonales et octagonales pour le formage à chaud et l'usinage facile. Le C64200 est considéré comme le meilleur alliage de tige de soupape. Les autres applications incluent les engrenages, la quincaillerie maritime, les écrous, la quincaillerie de ligne de poteaux, les corps de soupape et les composants de soupape.

Utilisations types du bronze au silicium-aluminium C64200 :

AUTOMOBILE : guides de soupape; moteur automobile

ÉLECTRIQUE: quincaillerie de ligne de poteaux

ÉLÉMENTS DE FIXATION: boulons; écrous

INDUSTRIEL: composants de soupape; corps de soupape; engrenages; tiges de soupape; cames

MARITIME: quincaillerie

Tailles disponibles chez NBM

BARRE SOLIDE . . . . . . . . . . 3/16 po. (0,3 cm) - 8 po. (15,2 cm) diamètre

BARRE HEXAGONALE . . . . . . . . . . . . 5/8 po. (0,6 cm) - 2,5 po. (6,4 cm) sur les plats

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Chemical Composition
Temper
Mechanical Properties
Physical Properties
Fabrication
Specifications
Al As Cu Fe Pb Mn Ni Si Sn Zn
Min/Max 6.3 - 7.6 0.15 Rem 0.3 0.05 0.1 0.25 1.5 - 2.2 0.2 0.5
Nominals 7.0000 - 91.2000 - - - - 1.8000 - -
Product Type Temper Type
Bar AMS 4634, ASME SB150, ASTM B150
Bar, Forging ASTM B124
Bolts ASTM F468
Forgings, Die AMS 4634, ASME SB283, ASTM B283
Nuts ASTM F467
Rod AMS 4634, ASME SB150, ASTM B150, SAE J463, J461
Rod, Forging ASTM B124
Screws ASTM F468
Shapes ASTM B150
Shapes, Forging ASTM B124
Studs ASTM F468
Temper Sect. Size Cold Work Type Min Temp Tensile Strength YS
0.05% UL 		YS
0.02% Offset 		YS
0.005% Offset 		Elong. RH
B 		RH
C 		RH
F 		RH
30T 		VH
500 		BH
500 		BH
3000 		Shear
Strgth 		Fatigue
Strgth 		Izod
Impact
Strgth
- in. % - F ksi ksi ksi ksi % B C F 30T 500 500 3000 ksi ksi ft-lb
- mm. - - C MPa MPa MPa MPa - - - - - - - - MPa MPa J
Bar
M30 0.75 68 75 35 - - - - - - - - - - - -
M30 19 0 TYP 20 517 241 - - 32 77 - - - - - - - - 0
Forgings
M10 2.01 68 79 38 - - - - - - - - - - - -
M10 51 0 TYP 20 545 262 - - 30 78 - - - - - - - - 0
Rod
M30 0.75 68 75 35 - - - - - - - - - - - -
M30 19 0 TYP 20 517 241 - - 32 77 - - - - - - - - 0
H04 1.5 68 93 60 - - - - - - - - - - - -
H04 38 10 TYP 20 641 414 - - 26 90 - - - - - - - - 0
H04 0.75 68 102 68 - - - - - - - - - - 59 50
H04 19 15 TYP 20 703 469 - - 22 94 - - - - - - 407 345 0
O50 0.75 68 90 55 - - - - - - - - - - - -
O50 19 0 TYP 20 621 379 - - 28 89 - - - - - - - - 0
O50 0.5 68 92 58 - - - - - - - - - - - -
O50 12.7 0 TYP 20 634 400 - - 22 98 - - - - - - - - 0
Product Property US Customary Metric
Coefficient of Thermal Expansion 10.0 . 10-6 per oF (68-572 F) 18.0 . 10-6 per oC (20-300 C)
Density 0.278 lb/in3 at 68 F 7.7 gm/cm3 @ 20 C
Electrical Conductivity 8 %IACS @ 68 F 0.047 MegaSiemens/cm @ 20 C
Electrical Resistivity 113.0 ohms-cmil/ft @ 68 F 18.79 microhm-cm @ 20 C
Melting Point - Liquidus 1840 F 1004 C
Melting Point - Solidus 1800 F 982 C
Modulas of Elasticity in Tension 16000 ksi 110000 MPa
Modulus of Rigidity 6000 ksi 41370 MPa
Specific Gravity 7.69 7.69
Specific Heat Capacity 0.09 Btu/lb/ . oF at 68F 377.1 J/kg . oK at 293 K
Thermal Conductivity 26.0 Btu . ft/(hr . ft2 . oF)at 68F 45.0 W/m . oK at 20 C
Joining Technique Suitability
Brazing Fair
Butt Weld Fair
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Coated Metal Arc Welding Fair
Gas Shielded Arc Welding Fair
Machinability Rating 80
Oxyacetylene Welding Not Recommended
Seam Weld Fair
Soldering Not Recommended
Spot Weld Fair
End Product Specification
Bar AMS 4634, ASME SB150, ASTM B150
Bar, Forging ASTM B124
Bolts ASTM F468
Forgings, Die AMS 4634, ASME SB283, ASTM B283
Nuts ASTM F467
Rod AMS 4631, ASME SB150, ASTM B150, SAE J463, J461
Rod, Forging ASTM B124
Screws ASTM F468
Shapes ASTM B150
Shapes, Forging ASTM B124
Studs ASTM F468