HARDNESS TABLES

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Monday, 08 / 10, 2020

Hardness Conversion Tables --Steel

HV	HRA	HRB	HRC	HRD	15N	30N	45N	HB	HS
940	85.6	-	68.0	76.9	93.2	84.4	75.4	-	98.0
920	85.3	-	67.5	76.5	93.0	84.0	74.3	-	96.8
900	85.0	-	67.0	76.1	92.9	83.6	74.2	-	95.6
880	84.7	-	66.4	75.7	92.7	83.1	73.6	-	94.3
860	84.4	-	65.9	75.3	92.5	82.7	73.1	-	93.1
840	84.1	-	65.3	74.8	92.3	82.2	72.2	-	91.7
820	83.8	-	64.7	74.3	92.1	81.7	71.8	733	90.4
800	83.4	-	64.0	73.8	91.8	81.1	71.0	722	89.0
780	83.0	-	63.3	73.3	91.5	80.4	70.2	710	87.6
760	82.6	-	62.5	72.6	91.2	79.7	69.4	697	86.2
740	82.2	-	61.8	72.1	91.0	79.1	68.6	684	84.8
720	81.8	-	61.0	71.5	90.7	78.4	67.7	670	83.3
700	81.3	-	60.1	70.8	90.3	77.6	66.7	656	81.8
690	81.1	-	59.7	70.5	90.1	77.2	66.2	648	81.0
680	80.8	-	59.2	70.1	89.8	76.8	65.7	639	80.2
670	80.6	-	58.8	69.8	89.7	76.4	65.3	630	79.4
660	80.3	-	58.3	69.4	89.5	75.9	64.7	621	78.6
650	80.0	-	57.8	69.0	89.2	75.5	64.1	612	77.8
640	79.8	-	57.3	68.7	89.0	75.1	63.5	602	77.0
630	79.5	-	56.8	68.3	88.8	74.6	63.0	592	76.2
620	79.2	-	56.3	67.9	88.5	74.2	62.4	583	75.4
610	78.9	-	55.7	67.5	88.2	73.6	61.7	574	74.5
600	78.6	-	55.2	67.0	88.0	73.2	61.2	565	73.7
590	78.4	-	54.7	66.7	87.8	72.7	60.5	555	72.8
580	78.0	-	54.1	66.2	87.5	72.1	59.5	546	72.0
570	77.8	-	53.6	65.8	87.2	71.7	59.3	536	71.1
560	77.4	-	53.0	65.4	86.9	71.2	58.6	525	70.2
550	77.0	-	52.3	64.8	86.6	70.5	57.8	517	69.3
540	76.7	-	51.7	64.4	86.3	70.0	57.0	508	68.4
530	76.4	-	51.1	63.9	86.0	69.5	56.2	498	67.5
520	76.1	-	50.5	63.5	85.7	69.0	55.6	488	66.6
510	75.7	-	49.8	62.9	85.4	68.3	54.7	479	65.6
500	75.3	-	49.1	62.2	85.0	67.7	53.9	470	64.7
490	74.9	-	48.4	61.6	84.7	67.1	53.1	461	63.7
480	74.5	-	47.7	61.3	84.3	66.4	52.2	451	62.8
470	74.1	-	46.9	60.7	83.9	65.7	51.3	442	61.8
460	73.6	-	46.1	60.1	83.6	64.9	50.4	434	60.8
450	73.3	-	45.3	59.4	83.2	64.3	49.4	425	59.8
440	72.8	-	44.5	58.8	82.8	63.5	48.4	415	58.8
430	72.3	-	43.6	58.2	82.3	62.7	47.4	405	57.8
420	71.8	-	42.7	57.5	81.8	61.9	46.4	397	56.7
410	71.4	-	41.8	56.8	81.4	61.1	45.3	388	55.7
400	70.8	-	40.8	56.0	81.0	60.2	44.1	379	54.6
390	70.3	-	39.8	55.2	80.3	59.3	42.9	369	53.6
380	69.8	110.0	38.8	54.4	79.8	58.4	41.7	360	52.5
370	69.2	-	37.7	53.6	79.2	57.4	40.4	350	51.4
360	68.7	109.0	36.6	52.8	78.6	56.4	39.1	341	50.3
350	68.1	-	35.5	51.9	78.0	55.4	37.8	331	49.2
340	67.6	108.0	34.4	51.1	77.4	54.4	36.5	322	48.1
330	67.0	-	33.3	50.2	76.8	53.6	35.2	313	46.9
320	66.4	107.0	32.2	49.4	76.2	52.3	33.9	303	45.7
310	65.8	-	31.0	48.4	75.6	51.3	32.5	294	44.6
300	65.2	105.5	29.8	47.5	74.9	50.2	31.1	284	43.4
295	64.8	-	29.2	47.1	74.6	49.7	30.4	280	42.8
290	64.5	104.5	28.5	46.5	74.2	49.0	29.5	275	42.2
285	64.2	-	27.8	46.0	73.8	48.4	28.7	270	41.6
280	63.8	103.5	27.1	45.3	73.4	47.8	27.9	265	41.0
275	63.5	-	26.4	44.9	73.0	47.2	27.1	261	40.4
270	63.1	102.0	25.6	44.3	72.6	46.4	26.2	256	39.7
265	62.7	-	24.8	43.7	72.1	45.7	25.2	252	39.1
260	62.4	101.0	24.0	43.1	71.6	45.0	24.3	247	38.5
255	62.0	-	23.1	42.2	71.1	44.2	23.2	243	37.9
250	61.6	99.5	22.2	41.7	70.6	43.4	22.2	238	37.2
245	61.2	-	21.3	41.1	70.1	42.5	21.1	233	36.6
240	60.7	98.1	20.3	40.3	69.6	41.7	19.9	228	36.0
230	-	96.7	18.0	-	-	-	-	219	34.7
220	-	95.0	15.7	-	-	-	-	209	33.4
210	-	93.4	13.4	-	-	-	-	200	32.0
200	-	91.5	11.0	-	-	-	-	190	30.7
190	-	89.5	8.5	-	-	-	-	181	29.4
180	-	87.1	6.0	-	-	-	-	171	28.0
170	-	85.0	3.0	-	-	-	-	162	26.6
160	-	81.7	0.0	-	-	-	-	152	25.2
150	-	78.7	-	-	-	-	-	143	23.8
140	-	75.0	-	-	-	-	-	133	22.3
130	-	71.2	-	-	-	-	-	124	20.8
120	-	66.7	-	-	-	-	-	114	19.4
110	-	62.3	-	-	-	-	-	105	17.9
100	-	56.2	-	-	-	-	-	95	16.3
HV	HRA	HRB	HRC	HRD	15N	30N	45N	HB	HS