Almetals: Specialty Metals Slitter & Distributor: A Supplier of Aluminum, Brass, Copper, Clad Metals, Stainless Steel, and Steel

rockwell hardness conversions

Brinell Hard- ness 5140 Kg	15-T 15 Kg 1/16" Ball	30-T 30 Kg 1/16" Ball	45-T 45 Kg 1/16" Ball	b 100 Kg 1/16" Ball	C 150 Kg brale	15-N 15 Kg N Brale	30-N 30 Kg N Brale	45-T 45 Kg N Brale
-- -- --					65 64 63	92.0 -- 91.0	82.0 81.0 80.0	72.0 71.0 70.0
-- -- 614					62 61 60	91.0 90.5 90.0	79.0 78.5 77.5	69.0 67.5 66.5
600 587 573	-- -- --	-- -- --	-- -- --	-- -- --	59 58 57	89.5 -- 89.0	76.5 75.5 75.0	65.5 64.0 63.0
560 547 543	-- -- --	-- -- --	-- -- --	-- -- --	56 55 54	88.5 88.0 87.5	74.0 73.0 72.0	62.0 61.0 59.5
522 509 496	-- -- --	-- -- --	-- -- --	-- -- --	53 52 51	87.0 86.5 86.0	71.0 70.5 69.5	58.5 57.5 56.0
484 472 460	-- -- --	-- -- --	-- -- --	-- -- --	50 49 48	85.5 85.0 84.5	68.5 67.5 66.5	55.0 54.0 52.5
448 437 426	-- -- --	-- -- --	-- -- --	-- -- --	47 46 45	84.0 83.5 83.0	66.0 65.0 64.0	51.5 50.0 49.0
415 404 393	-- -- --	-- -- --	-- -- --	-- -- --	44 43 42	82.5 82.0 81.5	63.0 62.0 61.5	48.0 46.5 45.5
382 372 362	-- -- --	-- -- --	-- -- --	-- -- --	41 40 39	81.0 80.5 80.0	60.5 59.5 58.5	44.5 43.0 42.0
352 342 332	-- -- --	-- -- --	-- -- --	-- (110) (109)	38 37 36	79.5 79.0 78.5	57.5 56.5 56.0	41.0 39.5 38.5
322 313 305	-- -- --	-- -- --	-- -- --	(108) (108) (107)	35 34 33	78.0 77.0 76.5	55.0 54.0 53.0	37.0 36.0 35.0
297 290 283	-- -- --	-- -- --	-- -- --	(107) (106) (105)	32 31 30	76.0 75.5 75.0	52.0 51.5 50.5	33.5 32.5 31.5
276 270 265	-- -- --	-- -- --	-- -- --	(105) (104) (104)	29 28 27	74.5 74.0 73.5	49.5 48.5 47.5	30.0 29.0 28.0
260 255 250	-- -- --	-- -- --	-- -- --	(103) (102) (102)	26 25 24	72.5 72.0 71.5	47.0 46.0 45.0	26.5 25.5 24.0
240 234 228	93.0 92.5 --	82.0 81.5 81.0	72.0 71.0 70.0	100 99 98	23 22 21	71.0 70.5 70.0	44.0 43.0 42.5	23.0 22.0 20.5
222 216 210 205 200 195	92.0 -- 91.5 -- 91.0 90.5	80.5 80.0 79.0 78.5 78.0 77.5	69.0 68.0 67.0 66.0 65.5 64.5	97 96 95 94 93 92	20 (18) (16) (14) (13) (12)	69.5	41.5	19.5
190 185 180	-- 90.0 89.5	77.0 76.0 75.5	63.5 62.5 61.5	91 90 89	(11) (10) (8)
Brinell Hard- ness 5140 Kg	15-T 15 Kg 1/16" Ball	30-T 30 Kg 1/16" Ball	45-T 45 Kg 1/16" Ball	b 100 Kg 1/16" Ball	C 150 Kg brale	15-N 15 Kg N Brale	30-N 30 Kg N Brale	45-T 45 Kg N Brale
176 172 169	-- 89.0 88.5	75.0 74.5 74.0	60.5 59.5 58.5	88 87 86
165 162 159	-- 88.0 87.5	73.5 73.0 72.0	58.0 57.0 56.0	85 84 83
156 153 150	-- 87.0 86.5	71.5 71.0 70.0	55.0 54.0 53.0	82 81 80
147 144 141	-- 86.0 85.5	69.5 69.0 68.0	52.0 51.0 50.0	79 78 77
139 137 135	-- 85.0 --	67.5 67.0 66.0	49.0 48.5 47.5	76 75 74
132 130 127	84.5 84.0 --	65.5 65.0 64.0	46.5 45.5 44.5	73 72 71
125 123 121	83.5 83.0 --	63.5 62.5 62.0	43.5 42.5 41.5	70 69 68
119 117 116	82.5 82.0 --	61.5 60.5 60.0	40.5 39.5 38.5	67 66 65
114 112 110	81.5 81.0 --	59.5 58.5 58.0	37.5 36.5 35.5	64 63 62
108 107 106	80.5 -- 80.0	57.0 56.5 56.0	34.5 33.5 32.0	61 60 59
104 103 101	79.5 -- 79.0	55.0 54.5 54.0	31.0 30.0 29.0	58 57 56
100 -- --	78.5 -- 78.0	53.0 52.5 51.5	28.0 37.0 26.0	55 54 53
	77.5 --	51.0 50.5	15.0 24.0	52 51
	77.0 76.5 --	49.5 49.0 48.5	23.0 22.0 20.5	50 49 48
	76.0 75.5 --	47.5 47.0 46.0	19.5 18.5 17.5	47 46 45
	75.0 74.5 --	45.5 45.0 44.0	16.5 15.5 14.5	44 43 42
	74.0 73.5 --	43.5 43.0 42.0	13.5 12.5 11.0	41 40 39
Brinell Hard- ness 5140 Kg	15-T 15 Kg 1/16" Ball	30-T 30 Kg 1/16" Ball	45-T 45 Kg 1/16" Ball	b 100 Kg 1/16" Ball	C 150 Kg brale	15-N 15 Kg N Brale	30-N 30 Kg N Brale	45-T 45 Kg N Brale

Conversion Table

Edge Conditions

Tolerance Tables

Water Staining

Toll Processing