Specifications: ASTM B669*

Element	Al%	Zn%	Mg%	Si%	Cu%	Fe%	Pb%
Maximum	11.5	BAL	0.03	X	1.2	0.065	0.005
Minimum	10.8		0.02		0.5	--	--
Element	Sn%	Cd%	Ni%	Mn%	Cr%	Ti%	Sb%
Maximum	0.002	0.005	0.01	0.01	0.01	X	X
Minimum	--	--	--	--	--

X= Element not in Specification.
*Ritchey Metals will adjust these specifications to suit the
needs of an individual customer upon request.

Properties

Mechanical			Sand Cast		Perm Mold		Die Cast
Ultimate Tensile Strength		40-46 psi x 103 (276-317 Mpa)	45-50 psi x 103 (310-345 Mpa)	58 psi x 103 (400 Mpa)
Yield Strength - 0.2% Offset		31 psi x 103 (214 Mpa)	39 psi x 103 (269 Mpa)	46 psi x 103 (317 Mpa)
Elongation		1-3% in 2"	1-3% in 2"	4-7% in 2"
Shear Strength		37 psi x 103 (255 Mpa)	--	43 psi x 103 (296 Mpa)
Hardness: Brinell		89-105	89-105	95-115
Impact Strength		19 ft-lb (25 J)	--	21 ft-lb (29 J)
	(10 mm2 specimen unnotched)
Fatigue Strength Rotary Bend		15 psi x 103 (103 Mpa)	--	17 psi x 103 (117 Mpa)
	5 x 108 cycles
Comprehensive Yield Strength		33 psi x 103 (227 Mpa)	34 psi x 103 (234 Mpa)	39 psi x 103 (269 Mpa)
	0.1% Offset
Modulus of Elasticity		12.0 psi x 106 (82.7 Mpa x 103)	12.0 psi x 106 (82.7 Mpa x 103)	12.0 psi x 106 (82.7 Mpa x 103)
Physical
Density		0.218 lb/in3 (6.0 g/cm3)
Melting Range		710-810 oF (377-432 oC)
Electrical Conductivity		28.3% IACS
Thermal Conductivity		67.1 BTU/ft/hr/oF (116.1 W/m/hr/ oC)
Coefficient of Thermal Expansion		13.4 microinches/in/oF (24.2 microinches/mm/oC)
	68-212oF(100-200oC)
Specific Heat		0.107 BTU/lb/oF (448 J/kg/oC))
Pattern or Die Shrinkage		5/32 in/ft

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Availability

Bar Ingot Bundle - Self palletizing or on wooden pallets
Margash Bundle - Self palletizing or on wooden pallets
Small Sow

Ritchey Metals routinely works with customers to alter our products to fit specific needs.

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Uses

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