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Rockwell Hardness			Brinell	Tensile Strength		Rockwell Hardness			Brinell	Tensile Strength
C	B	A	Hardness	(Lbs./Sq.In.)		C	B	A	Hardness	(Lbs./Sq.In.)
70		86.5	780			38	110	69.5	363	171,000
69		86.0	762			37	110	69.0	352	167,000
68		85.5	745			36	109	68.5	341	162,000
67		85.0	728			35	109	68.0	331	158,000
66		84.5	712			34	108	67.5	321	153,000
65		84.0	697			33	108	67.0	311	148,000
64		83.5	682			32	107	66.5	302	144,000
63		83.0	668			31	106	66.0	293	140,000
62		82.5	653			30	105	65.5	285	136,000
61		82.0	640			29	104	65.0	277	133,000
60		81.0	627	314,000		28	104	64.5	269	131,000
59		80.5	614	307,000		27	103	64.0	265	130,000
58		80.0	601	299,000		26	103	63.5	262	128,000
57		79.5	578	291,000		25	102	63.0	255	125,000
56		79.0	567	284,000		24	102	62.5	248	122,000
55		78.5	555	277,000		23	101	62.0	241	119,000
54		78.0	545	270,000		22	100	61.5	235	116,000
53		77.5	534	263,000		21	99	61.0	229	113,000
52		77.0	514	256,000		20	98	60.0	223	110,000
51		76.5	505	250,000		19	97	59.5	220	108,000
50		76.0	495	243,000		18	97	59.0	217	107,000
49		75.5	477	236,000		17	96	58.0	212	104,000
48		75.0	469	230,000		16	96	57.5	207	101,000
47		74.0	461	223,000		15	95	57.0	202	99,000
46	115	73.5	444	217,000		14	94	56.5	200	98,000
45	115	73.0	429	211,000		13	93	56.0	197	97,000
44	114	72.5	415	205,000		12	92	55.5	192	95,000
43	114	72.0	408	200,000		11	92	55.0	189	94,000
42	113	71.5	401	195,000		10	91	54.0	187	93,000
41	112	71.0	388	188,000		9	90	53.5	183	91,000
40	112	70.5	375	182,000		8	89	53.0	179	89,000
4039	111	70.0	369	176,000		7	88	52.5	174	87,000