7075 Material (right)	"0"	"01"	T6	T651	T6511	T73	T7351	T73511	T76	T7651	T76511
Starting Mill Temper (below)
"0"		no	yes**	no	no	yes**	no	no	yes**	no	no
T6	yes	no		no	no	yes	no	no	yes	no	no
T651	yes	no	yes**		no	yes**	yes	no	yes**	yes	no
T6511	yes	no	yes**	no		yes**	no	yes	yes**	no	yes
T73	yes	no	yes**	no	no		no	no	yes**	no	no
T7351	yes	no	yes**	no	no	yes**		no	yes**	no	no
T73511	yes	no	yes**	no	no	yes**	no		yes**	no	no
T76	yes	no	yes**	no	no	yes**	no	no		no	no
T7651	yes	no	yes**	no	no	yes**	no	no	yes**		no
T76511	yes	no	yes**	no	no	yes**	no	no	yes**	no

** - Can be achieved by resolution and/or resolution and artificial age. This process can cause distortion depending on material thickness and configuration.

General Temper Conversions for 2024 Material

2024 Material (right)	"0"	T3	T351	T3511	T4	T42	T6	T62	T81	T851	T8511
Starting Mill Temper (below)
"0"		no	no	no	yes**	yes**	yes**	yes**	no	no	no
T3	yes		no	no	yes**	yes**	yes**	yes**	yes	no	no
T351	yes	no		no	yes**	yes**	yes**	yes**	no	yes	no
T3511	yes	no	no		yes**	yes**	yes**	yes**	no	no	yes
T4	yes	no	no	no		yes**	yes	yes**	no	no	no
T42	yes	no	no	no	yes**		yes**	yes	no	no	no
T6	yes	no	no	no	yes**	yes**		yes**	no	no	no
T62	yes	no	no	no	yes**	yes**	yes**		no	no	no
T81	yes	no	no	no	yes**	yes**	yes**	yes**		no	no
T851	yes	no	no	no	yes**	yes**	yes**	yes**	no		no
T8511	yes	no	no	no	yes**	yes**	yes**	yes**	no	no

** - Can be achieved by resolution and/or resolution and artificial age. This process can cause distortion depending on material thickness and configuration.

General Temper Conversions for 6061 Material

6061 Material (right)	"0"	T4	T42	T6	T62
Starting Mill Temper (below)
"0"		yes**	yes**	yes**	yes**
T4	yes		yes**	yes	yes**
T42	yes	yes**		yes**	yes
T6	yes	yes**	yes**		yes**
T62	yes	yes**	yes**	yes**

** - Can be achieved by resolution and/or resolution and artificial age.
This process can cause distortion depending on material thickness and configuration.

Hardness Conversion ChartNOTE: The conversion values are approximate values only. They have been independently developed and appear to be consistent with ASTM E-140 and A-370.

C-Scale	A-Scale	15-N Scale	KSI/ PSI		C-Scale	A-Scale	15-N Scale	KSI/ PSI		C-Scale	A-Scale	15-N Scale	KSI/ PSI		C-Scale	A-Scale	15-N Scale	KSI/ PSI
80	92	96.5	NA		65	83.9	92.2	NA		50	75.9	85.5	255		35	67.9	77.7	156
79	91.5	96.3	NA		64	83.4	91.8	NA		49	75.2	85	246		34	67.4	77.2	152
78	91	96	NA		63	82.8	91.4	NA		48	74.7	84.5	238		33	66.8	76.6	149
77	90.5	95.8	NA		62	82.3	91.1	NA		47	74.1	83.9	229		32	66.3	76.1	146
76	90	95.5	NA		61	81.8	90.7	NA		46	73.6	83.5	221		31	65.8	75.6	141
75	89.5	95.3	NA		60	81.2	90.2	NA		45	73.1	83	215		30	65.3	75	138
74	89	95	NA		59	80.7	89.8	351		44	72.5	82.5	208		29	64.6	74.5	135
73	88.5	94.8	NA		58	80.1	89.3	338		43	72	82	201		28	64.3	73.9	131
72	88	94.5	NA		57	79.6	88.9	325		42	71.5	81.5	194		27	63.8	73.3	128
71	87	94.3	NA		56	79	88.3	313		41	70.9	80.9	188		26	63.3	72.8	125
70	86.5	94	NA		55	78.5	87.9	301		40	70.4	80.4	182		25	62.8	72.2	123
69	86	93.5	NA		54	78	87.4	292		39	69.9	79.9	177		24	62.4	71.6	119
68	85.6	93.2	NA		53	77.4	86.9	283		38	69.4	79.4	171		23	62	71	117
67	85	92.9	NA		52	76.8	86.4	273		37	68.9	78.8	166		22	61.5	70.5	115
66	84.5	92.5	NA		51	76.3	85.9	264		36	68.4	78.3	161		21	61	69.9	112
															20	60.5	69.4	110