End-Quench Hardenability Bands — 4042 H to 4142 H
Tabulations of Band Limits
“J” Distance Sixteenths of an Inch	GRADE
	4042 H		4047 H		4118 H		4130 H		4135 H		4137 H		4140 H		4142 H
	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min
1	62	55	64	57	48	41	56	49	58	51	59	52	60	53	62	55
2	60	52	62	55	46	36	55	46	58	50	59	51	60	53	62	55
3	58	48	60	50	41	27	53	42	57	49	58	50	60	52	62	54
4	55	40	58	42	35	23	51	38	56	48	58	49	59	51	61	53
5	50	33	55	35	31	20	49	34	56	47	57	49	59	51	61	53
6	45	29	52	32	28	—	47	31	55	45	57	48	58	50	61	52
7	39	27	47	30	27	—	44	29	54	42	56	45	58	48	60	51
8	36	26	43	28	25	—	42	27	53	40	55	43	57	47	60	50
9	34	25	40	28	24	—	40	26	52	38	55	40	57	44	60	49
10	33	24	38	27	23	—	38	26	51	36	54	39	56	42	59	47
11	32	24	37	26	22	—	36	25	50	34	53	37	56	40	59	46
12	31	23	35	26	21	—	35	25	33	49	52	36	55	39	58	44
13	30	23	34	25	21	—	34	24	48	32	51	35	55	38	58	42
14	30	23	33	25	20	—	34	24	47	31	50	34	54	37	57	41
15	29	22	33	25	—	—	33	23	46	30	49	33	54	36	57	40
16	29	22	32	25	—	—	33	23	45	30	48	33	53	35	56	39
18	28	22	31	24	—	—	32	22	44	29	46	32	52	34	55	37
20	28	21	30	24	—	—	32	21	42	28	45	31	51	33	54	36
22	28	20	30	23	—	—	32	20	41	27	44	30	49	33	53	35
24	27	20	30	23	—	—	31	—	40	27	43	30	48	32	53	34
26	27	—	30	22	—	—	31	—	39	27	42	30	47	32	52	34
28	27	—	29	22	—	—	30	—	38	26	42	29	46	31	51	34
30	26	—	29	21	—	—	30	—	38	26	41	29	45	31	51	33
32	26	—	29	21	—	—	29	—	37	26	41	29	44	30	50	33

NOTE:

These values were adjusted to the nearest Rockwell “C” point, and are used when points are selected and specified.

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