Restricted End-Quench Hardenability Bands — 5130 RH to 9310 RH
Tabulations of Band Limits
“J” Distance Sixteenths of an Inch	GRADE
	5130 RH		5140 RH		5160 RH		8620 RH		8622 RH		8720 RH		8822 RH		9310 RH
	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min
1	55	50	59	54	65	60	47	42	49	44	47	42	49	44	42	37
2	53	47	58	53	65	60	45	39	47	41	45	39	48	43	42	36
3	51	44	57	51	65	60	41	35	45	37	43	37	47	40	42	36
4	49	41	55	49	65	59	38	30	41	32	40	32	43	35	41	35
5	46	37	53	45	64	58	34	26	38	29	36	28	40	31	41	34
6	44	35	51	41	63	57	31	24	35	27	33	26	37	29	40	33
7	42	33	48	38	62	54	29	22	32	24	31	24	35	27	40	32
8	39	31	46	36	60	50	28	21	30	22	29	23	33	26	39	31
9	37	29	44	34	58	45	26	20	29	21	28	22	32	25	38	30
10	35	27	43	33	56	42	25	—	28	20	27	21	31	25	37	29
11	34	26	41	32	55	40	24	—	27	—	26	20	30	24	37	29
12	33	25	40	31	53	39	23	—	26	—	25	—	30	23	36	28
13	32	24	39	30	51	38	23	—	25	—	25	—	29	23	35	28
14	31	23	37	29	50	37	22	—	24	—	24	—	28	23	34	28
15	30	22	36	28	48	36	22	—	24	—	24	—	28	22	34	28
16	29	21	35	27	47	36	21	—	23	—	23	—	27	22	33	27
18	28	20	34	26	44	35	20	—	23	—	23	—	27	21	33	27
20	27	—	33	25	43	34	—	—	22	—	22	—	26	20	32	26
22	26	—	32	24	42	33	—	—	22	—	22	—	26	—	32	26
24	25	—	31	23	41	32	—	—	22	—	21	—	26	—	32	26
26	24	—	30	22	40	31	—	—	22	—	20	—	26	—	32	26
28	23	—	30	21	39	30	—	—	22	—	—	—	25	—	32	26
30	22	—	29	20	39	29	—	—	22	—	—	—	25	—	31	25
32	21	—	29	—	38	29	—	—	22	—	—	—	25	—	31	25

NOTE:

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

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