Hardness Comparison

硬度值对照表 Hardness Comparison

A High Quality China Foundry!

Guokun Casting, of Baoding Hebei is an ISO 9001-2008 registered iron and steel foundry & supplier of high quality carbon steel, alloy steel, stainless steel, wear resistant steel castings, gray iron casting, ductile iron casting, protype castings and machhined castings used in Power, Mining, Transporation, Agricultural, Automobile, bus and truck parts, valves, oil & Gas steel castings and Gear Industry.

HV	HB 10/3000	HR		HR轻载荷		HS	σb	HV	HB 10/3000	HR			HR轻载荷		HS	σb
		HRA	HRC	15-N	30-N					HRA	HRB	HRC	15-N	30-N
940		85.6	68.0	93.2	84.4	97		410	388	71.4		41.8	81.4	61.1		137
920		85.3	67.5	93.0	84.0	96		400	379	70.8		40.8	81.0	60.2	55	134
900		85.0	67.0	92.9	83.6	95		390	369	70.3		39.8	80.3	59.3		130
880		84.7	66.4	92.7	83.1	93		380	360	69.8	110	38.8	79.8	58.4	52	127
860		84.4	65.9	92.5	82.7	92		370	350	69.2		37.7	79.2	57.4		123
840		84.1	65.3	92.3	82.2	91		360	341	68.7	109	36.6	78.6	56.4	50	120
820		83.8	64.7	92.1	81.7	90		350	331	68.1		35.5	78.0	55.4		117
800		83.4	64.0	91.9	81.1	88		340	322	67.6	108	34.4	77.4	54.4	47	113
780		83.0	63.3	91.5	80.4	87		330	313	67.0		33.3	76.8	53.6		110
760		82.6	62.5	91.2	79.7	86		320	303	66.4	107	32.2	76.2	52.3	45	106
740		82.2	61.8	91.0	79.1	84		310	294	65.8		31.0	75.6	51.3		103
720		81.8	61.0	90.7	78.4	83		300	284	65.2	105.5	29.8	74.9	50.2	42	99
700		81.3	60.1	90.3	77.6	81		295	280	64.8		29.2	74.6	49.7		98
690		81.1	59.7	90.1	77.2			290	275	64.5	104.5	28.5	74.2	49.0	41	96
680		80.8	59.2	89.8	76.8	80	232	285	270	64.2		27.8	73.8	48.4		94
670		80.6	58.8	89.7	76.4		228	280	265	63.8	103.5	27.1	73.4	47.8	40	92
660		80.3	58.3	89.5	75.9	79	224	275	261	63.5		26.4	73.0	47.2		91
650		80.0	57.8	89.2	75.5		221	270	256	63.1	102	25.6	72.6	46.4	38	89
640		79.8	57.3	89.0	75.1	77	217	265	252	62.7		24.8	72.1	45.7		87
630		79.5	56.8	88.8	74.6		214	260	247	62.4	101	24.0	71.6	45.0	37	85
620		79.2	56.3	88.5	74.2	75	210	255	243	62.0		23.1	71.1	44.2		84
610		78.9	55.7	88.2	73.6		207	250	238	61.6	99.5	22.2	70.6	43.4	36	82
600		78.6	55.2	88.0	73.2	74	203	245	233	61.2		21.3	70.1	42.5		80
590		78.4	54.7	87.8	72.7		200	240	228	60.7	98.1	20.3	69.6	41.7	34	78
580		78.0	54.1	87.5	72.1	72	196	230	219		96.7	18.0			33	75
570		77.8	53.6	87.2	71.7		193	220	209		95.0	15.7			32	71
560		77.4	53.0	86.9	71.2	71	189	210	200		93.4	13.4			30	68
550	505	77.0	52.3	86.6	70.5		186	200	190		91.4	11.0			29	65
540	496	76.7	51.7	86.3	70.0	69	183	190	181		89.5	8.5			28	62
530	488	76.4	51.1	86.0	69.5		179	180	171		87.1	6.0			26	59
520	480	76.1	50.5	85.7	69.0	67	176	170	162		85.0	3.0			25	56
510	473	75.7	49.8	85.4	68.3		173	160	152		81.7	0.0			24	53
500	465	75.3	49.1	85.0	67.7	66	169	150	143		78.7				22	50
490	456	74.9	48.4	84.7	67.1		165	140	133		75.0				21	45
480	448	74.5	47.7	84.3	66.4	64	162	130	124		71.2				20	44
470	441	74.1	46.9	83.9	65.7		158	120	114		66.7					40
460	433	73.6	46.1	83.6	64.9	62	155	110	105		62.3
450	425	73.3	45.3	83.2	64.3		151	100	95		56.2
440	415	72.8	44.5	82.8	63.5	59	148	95	90		52.0
430	405	72.3	43.6	82.3	62.7		144	90	86		48.0
420	397	71.8	42.7	81.8	61.9	57	141	85	81		41.0
本对照表经全国轧辊肖氏硬度计量比对会议验证，一重冶金处1978.11复制。仅供参考。

说明：HV-维氏硬度，HB-布氏硬度，HR-洛氏硬度，HS-肖氏硬度。σ_b：钢的抗拉强度，Kgf/mm² 。

Any needs of investment casting, sand casting, steel investment casting, water glass casting, silica sol casting, die forging in carbon steel, stainless steel, alloy steel, special steel, iron for mining, oil & gas industry, agricultural engineering, automotive parts, please email us gina@guokuncasting.com