Die Cast Zinc Chart

	#3		#5		#7		#2		ZA-8		ZA-12		ZA-27
	Ingot	Casting	Ingot	Casting	Ingot	Casting	Ingot	Casting	Ingot	Casting	Ingot	Casting	Ingot	Casting
Aluminum	3.9 - 4.3	3.5 -4.3	3.9 - 4.3	3.5 -4.3	3.9 - 4.3	3.5 - 4.3	3.9 - 4.3	3.5 -4.3	8.2 - 8.8	8.0 -8.8	10.8 -11.5	10.5 - 11.5	25.5 - 28.0	25.0 - 28.0
Magnesium	.025 - .05	.020 - .05	.03 - .06	.03 - .08	.01 - .020	.005 - .020	025 - .05	.020 - .050	.020 - .030	.015 - .030	.020 - .030	.015 - .030	.012 - .020	.010 - .020
Cu	.10 max	.25 max⁹	.75-1.25	.75-1.25	.10 max	.25 max	2.6-2.9	2.5 - 3.0	0.8 - 1.3	.8 - 1.3	0.5 - 1.2	0.5 - 1.2	2.0 - 2.5	2.0 - 2.5
Fe (max)	.075	.10	.075	.10	.075	.075	.075	.10	.065	.075	.065	.075	.072	.075
Lead (max)	.004	.005	.004	.005	.0020	.003	.004	.005	.005	.006	.005	.006	.005	.006
Cd (max)	.003	.004	.003	.004	.0020	.002	. 003	.004	.005	.006	.005	.006	.005	.006
Sn (max)	.002	.003	.002	.003	.0010	.001	.002	.003	.002	.003	.002	.003	.002	.003
Ni (other)x¹⁰	-	-	-	-	.005 - .020	.005 - .020	-	-	-	-	-	-	-	-
Zn	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.

Properties
Ultimate tensile strength (ksi)	40	48	41	54	58.5	61
Tensile yield strength (ksi)	-	-	-	42	46	53
Elongation (% in 2" (55 mm))	10	7	13	6-10	4-7	1-3
Hardness (HB)	82	91	80	95-110	95-115	105-125
Shear strength (ksi)	31	38	-	35	37	42
Charpy impact strength (ft. lb.—unnotched)	43	48	43	31	21	3
Fatigue strength (ksi) (limit @ 500 million cycles)	6.9	8.2	-	7.5	15	25
Density (lb./in.³)	0.24	0.24	0.247	0.227	0.218	0.181
Melting range (^oF)	718-728	717-727	718-728	707-759	710-810	708-903
Specific heat (Btu/lb.^oF)	0.10	0.10	0.10	0.104	0.107	0.125
Coefficient of thermal expansion (in./in./^oF)	15.2	15.2	15.2	12.9	13.4	14.4
Thermal conductivity (Btu/fthr.^oF)	65.3	62.9	65.3	66.3	67.1	72.5
Electrical conductivity (% IACS)	27.0	26.0	27.0	27.7	28.3	29.7
Modulus of rupture (10⁶ psi)	95,000	105,000	-	-	-	-
Modulus of elasticity (10⁶ psi)	-	-	-	10.2	10.3	10.3
Die shrinkage (in./in.)	0.007	0.007	0.007	0.007	0.0075	0.008