Bảng chuyển đổi giá trị độ cứng theo loại vật liệu

BẢNG 1. Bảng chuyển đổi giá trị độ cứng theo loại vật liệu

(Áp dụng cho Vật liệu được làm cứng và Hợp kim cứng)

ROCKWELL (HR)							VICKER	BRINELL	SHORE
C	A	D	G	15N	30N	45N	HV	HB/30	HS
80	92.0	86.5		96.5	92.0	87.0	1865
79	91.5	85.5			91.5	86.5	1787
78	91.0	84.5		96.0	91.0	85.5	1710
77	90.5	84.0			90.5	84.5	1633
76	90.0	83.0		95.5	90.0	83.5	1556
75	89.5	82.5			89.0	82.5	1478
74	89.0	81.5		95.0	88.5	81.5	1400
73	88.5	81.0			88.0	80.5	1323
72	88.0	80.0		94.5	87.0	79.5	1245
71	87.0	79.5			86.5	78.5	1160
70	86.5	78.5		94.0	86.0	77.5	1076
69	86.0	78.0		93.5	85.0	76.5	1004
68	85.5	77.0			84.5	75.5	942		97
67	85.0	76.0		93.0	83.5	74.5	894		95
66	84.5	75.5		92.5	83.0	73.0	854		92
65	84.0	74.5		92.0	82.0	72.0	820		91
64	83.5	74.0			81.0	71.0	789		88
63	83.0	73.0		91.5	80.0	70.0	763		87
62	82.5	72.5		91.0	79.0	69.0	739		85
61	81.5	71.5		90.5	78.5	67.5	716		83
60	81.0	71.0		90.0	77.5	66.5	695	614	81
59	80.5	70.0		89.5	76.5	65.5	675	600	80
58	80.0	69.0			75.5	64.0	655	587	78
57	79.5	68.5		89.0	75.0	63.0	636	573	76
56	79.0	67.5		88.5	74.0	62.0	617	560	75
55	78.5	67.0		88.0	73.0	61.0	598	547	74
54	78.0	66.0		87.5	72.0	59.5	580	534	72
53	77.0	65.5		87.0	71.0	58.5	562	522	71
52	77.0	64.5		86.5	70.5	57.5	545	509	69
51	76.5	64.0		86.0	69.5	56.0	528	496	68
50	76.0	63.0		85.5	68.5	55.0	513	484	67
49	75.5	62.0		85.0	67.5	54.0	498	472	66
48	74.5	61.5		84.5	66.5	52.5	485	460	64
47	74.0	60.5		84.0	66.0	51.5	471	448	63
46	73.5	60.0		83.5	65.0	50.0	458	437	62
45	73.0	59.0		83.0	64.0	49.0	446	426	60
44	72.5	58.5		82.5	63.0	48.0	435	415	58
43	72.0	57.5		82.0	62.0	46.5	424	404	57
42	71.5	56.5		81.5	61.5	45.5	413	393	56
41	71.0	56.0		81.0	60.5	44.5	403	382	55
40	70.5	55.5		80.5	59.5	43.0	393	372	54
39	70.0	54.5		80.0	58.5	42.0	383	362	52
38	69.5	54.0		79.5	57.5	41.0	373	352	51
37	69.0	53.0		79.0	56.5	39.5	363	342	50
36	68.5	52.5		78.5	56.0	38.5	353	332	49
35	68.0	51.5		78.0	55.0	37.0	343	322	48
34	67.5	50.5		77.0	54.0	36.0	334	313	47
33	67.0	50.0		76.5	53.0	35.0	325	305	46
32	66.5	49.0		76.0	52.0	33.5	317	297	44
31	66.0	48.5		75.5	51.5	32.5	309	290	43
30	65.5	47.5	92.0	75.0	50.5	31.5	301	283	42
29	65.0	47.0	91.0	74.5	49.5	30.0	293	276	41
28	64.5	46.0	90.0	74.0	48.5	29.0	285	270	41
27	64.0	45.5	89.0	73.5	47.5	28.0	278	265	40
26	63.5	44.5	88.0	72.5	47.0	26.5	271	260	39
25	63.0	44.0	87.0	72.0	46.0	25.5	264	255	38
24	62.5	43.0	86.0	71.5	45.0	24.0	257	250	37
23	62.0	42.5	84.5	71.0	44.0	23.0	251	245	36
22	61.5	41.5	83.5	70.5	43.0	22.0	246	240	35
21	61.0	41.0	82.5	70.0	42.5	20.5	241	235	35
20	60.5	40.0	81.0	69.5	41.5	19.5	236	230	34

BẢNG 2. Bảng chuyển đổi giá trị độ cứng theo loại vật liệu

(Áp dụng cho Vật liệu không được làm cứng và Thép mềm)

ROCKWELL(HR)									BRINELL
B	F	G	E	K	A	15T	30T	45T	HB/5	HB/30
100		82.5			61.5	93.0	82.0	72.0	201	240
99		81.0			61.0	92.5	81.5	71.0	195	234
98		79.0			60.0		81.0	70.0	189	228
97		77.5			59.0	92.0	80.5	69.0	184	222
96		76.0			59.0		80.0	68.0	179	216
95		74.0			58.0	91.5	79.0	67.0	175	210
94		72.5			57.5		78.5	66.0	171	205
93		71.0			57.0	91.0	78.0	65.0	167	200
92		69.0		100.0	56.5	90.5	77.5	64.5	163	195
91		67.5		99.5	56.0		77.0	63.5	160	190
90		66.0		98.5	55.5	90.0	76.0	62.5	157	185
89		64.0		98.0	55.0	89.5	75.5	61.5	154	180
88		62.5		97.0	54.0		75.0	60.5	151	176
87		61.0		96.5	53.5	89.0	74.5	59.5	148	172
86		59.0		95.5	53.0	88.5	74.0	58.5	145	169
85		57.5		94.5	52.5		73.5	58.0	142	165
84		56.0		94.0	52.0	88.0	73.0	57.0	140	162
83		54.0		93.0	51.0	87.5	72.0	56.0	137	159
82		52.5		92.0	50.5		71.5	55.0	135	156
81		51.0		91.0	50.0	87.0	71.0	54.0	133	153
80		49.0		90.5	49.5	86.5	70.0	53.0	130	150
79		47.5		89.5	49.0		69.5	52.0	128	147
78		46.0		88.5	48.5	86.0	69.0	51.0	126	144
77		44.0		88.0	48.0	85.5	68.0	50.0	124	141
76		42.5		87.0	47.0		67.5	49.0	122	139
75	99.5	41.0		86.0	46.5	85.0	67.0	48.5	120	137
74	99.0	39.0		85.0	46.0		66.0	47.5	118	135
73	98.5	37.5		84.5	45.5	84.5	65.5	46.5	116	132
72	98.0	36.0		83.5	45.0	84.0	65.0	45.5	114	130
71	97.5	34.5	100.0	82.5	44.5		64.0	44.5	112	127
70	97.0	32.5	99.5	81.5	44.0	83.5	63.5	43.5	110	125
69	96.0	31.0	99.0	81.0	43.5	83.0	62.5	42.5	109	123
68	95.5	29.5	98.0	80.0	43.0		62.0	41.5	107	121
67	95.0	28.0	97.5	79.0	42.5	82.5	61.5	40.5	106	119
66	94.5	26.5	97.0	78.0	42.0	82.0	60.5	39.5	104	117
65	94.0	25.0	96.0	77.5			60.0	38.5	102	116
64	93.5	23.5	95.5	76.5	41.5	81.5	59.5	37.5	101	114
63	93.0	22.0	95.0	75.5	41.0	81.0	58.5	36.5	99	112
62	92.0	20.5	94.5	74.5	40.5		58.0	35.5	98	110
61	91.5	19.0	93.5	74.0	40.0	80.5	57.0	34.5	96	109
60	91.0	17.5	93.0	73.0	39.5		56.5	33.5	95	107
59	90.5	16.0	92.5	72.0	39.0	80.0	56.0	32.0	94	106
58	90.0	14.5	92.0	71.0	38.5	79.5	55.0	31.0	92	104
57	89.5	13.0	91.0	70.5	38.0		54.5	30.0	91	103
56	89.0	11.5	90.5	69.5		79.0	54.0	29.0	90	101
55	88.0	10.0	90.0	68.5	37.5	78.5	53.0	28.0	89	100
54	87.5	8.5	89.5	68.0	37.0		52.5	27.0	87
53	87.0	7.0	89.0	67.0	36.5	78.0	51.5	26.0	86
52	86.5	5.5	88.0	66.0	36.0	77.5	51.0	25.0	85
51	86.0	4.0	87.5	65.0	35.5		50.5	24.0	84
50	85.5	2.5	87.0	64.5	35.0	77.0	49.5	23.0	83
49	85.0		86.5	63.5		76.5	49.0	22.0	82
48	84.5		85.5	62.5	34.5		48.5	20.5	81
47	84.0		85.0	61.5	34.0	76.0	47.5	19.5	80
46	83.0		84.5	61.0	33.5	75.5	47.0	18.5
45	82.5		84.0	60.0	33.0		46.0	17.5	79
44	82.0		83.5	59.0	32.5	75.0	45.5	16.5	78
43	81.5		82.5	58.0	32.0	74.5	45.0	15.5	77
42	81.0		82.0	57.5	31.5		44.0	14.5	76
41	80.5		81.5	56.5	31.0	74.0	43.5	13.5	75