End-Quench Hardenability Bands — 1335 H to 4037 H
Tabulations of Band Limits
“J” Distance Sixteenths of an Inch	GRADE
	1335 H		1340 H		1345 H		3310 H*		3316 H*		4028 H		4032 H		4037 H
	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min
1	58	51	60	53	63	56	43	36	47	40	52	45	57	50	59	52
2	57	49	60	52	63	56	43	36	47	39	50	40	54	45	57	49
3	56	47	59	51	62	55	42	35	47	38	46	31	51	36	54	42
4	55	44	58	49	61	54	42	35	46	38	40	25	46	29	51	35
5	54	38	57	46	61	51	42	34	46	37	34	22	39	25	45	30
6	52	34	56	40	60	44	42	33	46	37	30	20	34	23	38	26
7	50	31	55	35	60	38	41	32	45	36	28	—	31	22	34	23
8	48	29	54	33	59	35	41	31	45	35	26	—	29	21	32	22
9	46	27	52	31	58	33	41	30	45	34	25	—	28	20	30	21
10	44	26	51	29	57	32	40	30	45	33	25	—	26	—	29	20
11	42	25	50	28	56	31	40	29	45	33	24	—	26	—	28	—
12	41	24	48	27	55	30	40	29	45	32	23	—	25	—	27	—
13	40	23	46	26	54	29	39	28	45	32	23	—	24	—	26	—
14	39	22	44	25	53	29	39	28	44	32	22	—	24	—	26	—
15	38	22	42	25	52	28	38	27	44	31	22	—	23	—	26	—
16	37	21	41	24	51	28	38	27	44	31	21	—	23	—	25	—
18	35	20	39	23	49	27	37	26	44	31	21	—	23	—	25	—
20	34	—	38	23	48	27	37	26	43	31	20	—	22	—	25	—
22	33	—	37	23	47	26	37	26	43	31	—	—	22	—	25	—
24	32	—	36	22	46	26	36	26	43	31	—	—	21	—	24	—
26	31	—	35	21	45	25	36	25	42	31	—	—	21	—	24	—
28	31	—	35	21	45	25	36	25	42	30	—	—	20	—	24	—
30	30	—	34	20	45	24	35	25	42	30	—	—	—	—	23	—
32	30	—	34	20	45	24	35	25	41	30	—	—	—	—	23	—

NOTE:

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

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