Heat Treating Resources

Knowledge is the key to success in the competitive heat treating industry.

Below is a collection of charts and tables that should answer most frequently asked questions regarding our services.
If you still have questions, please contact us and we'll do our best to help.

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General Temper Conversions Chart for 7075 Material.

The 7075 Material is listed on the horizontal axis and the Starting Mill Temper on the vertical axis.

	"0"	T6	T651	T6511	T73	T7351	T73511	T76	T7651	T76511
"0"	---	**			**			**
T6		---
T651		**	---		**			**
T6511		**		---	**			**
T73		**			---			**
T7351		**			**	---		**
T73511		**			**		---	**
T76		**			**			---
T7651		**			**			**	---
T76511		**			**			**		---

Notes: ** 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 Chart for 2024 Material.

The 2024 Material is listed on the horizontal axis and the Starting Mill Temper on the vertical axis.

	"0"	T3	T351	T3511	T4	T42	T6	T62	T81	T851	T8511
"0"	---				**	**	**	**
T3		---			**	**	**	**
T351			---		**	**	**	**
T3511				---	**	**	**	**
T4					---	**		**
T42					**	---	**
T6					**	**	---	**
T62					**	**	**	---
T81					**	**	**	**	---
T851					**	**	**	**		---
T8511					**	**	**	**			---

Notes: ** 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 Chart for 6061 Material.

The 6061 Material is listed on the horizontal axis and the Starting Mill Temper on the vertical axis.

	"0"	T4	T42	T6	T62
"0"	---	**	**	**	**
T4		---	**		**
T42		**	---	**
T6		**	**	---	**
T62		**	**	**	---

Notes: ** 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 Chart for 7075 Material.

The 7075 Material is listed on the horizontal axis and the Starting Mill Temper on the vertical axis.

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

Required hardness for precipitation-hardening corrosion-resistant steels after aging.

Table adapted from SAE AMS 2759/3D Table 5.

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