Technical Information: Available Alloys

Alloy	Heat Treating	Ultimate Tensile Strength KSI	Min. Yield Strength Set @ 2% KSI	Elongation %	Hardness Rockwell E Scale 1/16 Ball	Pressure Tightness	Machinability
Aluminum Alloys
319.0	T6	36	24	2.0	85.5	B	A
355.0	T51	28	23	1.5	76.0	A	C
355.0	T6	35	25	3.0	85.5	A	B
C355.0	T6	39	29	5.0	89.0	A	B
356.0	T51	25	20	2.0	71.0	A	C
356.0	T6	33	24	3.5	79.0	A	A
A356.0	T51	26	18	3.0	71.0	A	C
A356.0	T6	40	30	6.0	82.5	A	A
357.0	T51	26	17	3.0	80.0	B	C
357.0	T6	45	35	3.0	91.0	B	B
A357.0	T6	45	35	3.0	89.0	B	B
380.0	None	46	23	3.5	85.5	B	C
712.0	*	35*	25*	5.0*	82.5	C	A
712.0 is also known as D712, D612, and 40E
Zinc Alloys
ZA3	None	41	- -	10.0	87.0	C	C
ZA8	None	34	30	1.5	95.5	C	C
ZA12	None	43	30	2.0	93.0	C	B
ZA27	None	61	46	9.5	100.0	C	B
These values are for separately cast test bars and are typical values.

* Test 30 days after casting
A = Excellent B = Good C = Fair

Applicable Military Specifications