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CuSn8Zn - Bronze à l'Etain

ASTM B505; SAE 620

Le bronze à l'étain à coulage continu C90300 et C90500 est utilisé pour les roulements, les bagues, les rotors de pompe, les segments de piston, les composants de soupape, les joints d'étanchéité, les garnitures à vapeur, les engrenages.

Utilisations types du bronze phosphoreux C90300 « Navy G » :

CONSTRUCTION: équipement de construction lourde

ÉLÉMENTS DE FIXATION: émerillon

INDUSTRIEL: rotors de pompe; segments de piston; corps de soupape; soupapes; engrenages; bagues; roulements; corps de pompe; ébauches d'engrenage

PLOMBERIE: raccords à vapeur

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Chemical Composition

Temper

Mechanical Properties

Physical Properties

Fabrication

Specifications

	Al	Sb	Cu	Fe	Pb	Ni	P	Si	S	Sn	Zn
Min/Max	0.005	0.2	86.0 - 89.0	0.2	0.3	1	0.05	0.005	0.05	7.5 - 9.0	3.0 - 5.0
Nominals	-	-	87.5000	-	-	-	-	-	-	8.3000	4.0000

Product Type	Temper Type
Centrifugal	ASTM B271, SAE J462, J461
Continuous	ASTM B505, SAE J461, J462
Ingot	ASTM B30
Precision	MILITARY MIL-C-11866
Sand	ASTM B763, B584, SAE J462, J461

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

Product Property	US Customary	Metric
Coefficient of Thermal Expansion	10.0 . 10-6 per oF (68-572 F)	0.0 . 10-6 per oC (20-200 C)
Density	0.318 lb/in3 at 68 F	8.8 gm/cm3 @ 20 C
Electrical Conductivity	12.0 %IACS @ 68 F	0.069 MegaSiemens/cm @ 20 C
Electrical Resistivity	87.2 ohms-cmil/ft @ 68 F	14.49 microhm-cm @ 20 C
Magnetic Permeability	1	1
Melting Point - Liquidus	1832 F	1000 C
Melting Point - Solidus	1570 F	854 C
Modulas of Elasticity in Tension	14000 ksi	96500 MPa
Specific Gravity	8.8	8.8
Specific Heat Capacity	0.09 Btu/lb/oF at 68 F	377.1 J/kg . oK at 293 K
Thermal Conductivity	43.2 Btu . ft/(hr . ft2 . oF)at 68F	74.8 W/m . oK at 20 C

Joining Technique	Suitability
Brazing	Good
Coated Metal Arc Welding	Fair
Gas Shielded Arc Welding	Fair
Machinability Rating	30
Oxyacetylene Welding	Fair
Soldering	Excellent

End Product	Specification
Centrifugal	ASTM B271, SAE J462, J461
Continuous	ASTM B505, SAE J461, J462
Ingot	ASTM B30
Precision	MILITARY MIL-C-11866
Sand	ASTM B763, B584, SAE J462, J461