ALUMINUM ALLOYS

	CHEMICAL COMPOSITION LIMITS (in Per Cent)										MINIMUM MECHANICAL PROPERTIES
ALLOY	Cr	Si	Fe	Cu	Mn	Mg	Zn	Ti	Others	Others	Temper	Yield	Tensile	Elong.
									Each	Total		(PSI)	(PSI)	% in
														2 inch
(1)	---	5.5-6.5	1	3.0-4.0	0.5	0.1	1	0.25	---	0.5	-F	---	23,000	---
319	---	5.5-6.5	1	3.0-4.0	0.5	0.1	1	0.25	---	0.5	0	---	31,000	1.5
355	0.25	4.5-5.5	0.6	1.0-1.5	0.5	.40-.60	0.35	0.25	0.05	0.15	0	20,000	32,000	2
C355	---	4.5-5.5	0.2	1.0-1.5	0.1	.40-.60	0.1	0.2	0.05	0.15	0	25,000	36,000	2.5
356	---	6.5-7.5	0.6	0.25	0.35	.20-.45	0.35	0.25	0.05	0.15	0	20,000	30,000	3
A356	---	6.5-7.5	0.2	0.2	0.1	.25-.45	0.1	0.2	0.05	0.15	0	24,000	34,000	3.5
A357	---	6.5-7.5	0.2	0.2	0.1	.40-.70	0.1	0.4-.20	(2)	0.15	0	36,000	45,000	(3)
A357	---	6.5-7.5	0.2	0.2	0.1	.40-.70	0.1	0.4-.20	0.05	0.15	0	36,000	45,000	3
							These limits are based on the current issue of the Aluminum Alloy
(1) Also contains 0.35 maximum limit for Nickel (Ni)							Designations and Chemical Composition Limits for Aluminum
(2) Contains Beryllium (BE) .04-.07							Alloys. The Mechanical Properties are based on Federal
(3) Per AMS 4219							Specifications QQ-A-601, "Aluminum Alloy Sand Castings"