68 940 93.2 84.4 75.467 900 92.9 83.6 74.266 865 92.5 82.8 73.365 832 92.2 81.9 72.064 800 91.8 81.1 71.063 772 91.4 80.1 69.962 746 91.1 79.3 68.861 720 90.7 78.4 67.760 697 90.2 77.5 66.659 674 89.8 76.6 65.558 653 89.3 75.7 64.357 633 88.9 74.8 63.256 613 88.3 73.9 62.055 595 87.9 73.0 60.954 577 87.4 72.0 59.853 560 86.9 71.2 58.652 544 86.4 70.2 57.451 528 85.9 69.4 56.150 513 85.5 68.5 55.049 498 85.0 67.6 53.848 484 84.5 66.7 52.547 471 83.9 65.8 51.446 458 83.5 64.8 50.345 446 83.0 64.0 49.044 434 82.5 63.1 47.843 423 82.0 62.2 46.742 412 81.5 61.3 45.541 402 80.9 60.4 44.340 392 80.4 59.5 43.139 382 79.9 58.6 41.938 372 79.4 57.7 40.837 363 78.8 56.8 39.636 354 78.3 55.9 38.435 345 77.7 55.0 37.234 336 77.2 54.2 36.133 327 76.6 53.3 34.932 318 76.1 52.1 33.731 310 75.6 51.3 32.530 302 75.0 50.4 31.329 294 74.5 49.5 30.128 286 73.9 48.6 28.927 279 73.3 47.7 27.826 272 72.8 46.8 26.725 266 72.2 45.9 25.524 260 71.6 45.0 24.323 254 71.0 44.0 23.122 248 70.5 43.2 22.021 243 69.9 42.3 20.720 238 69.4 41.5 19.6

Rockwell CHardness Number150 kgf(HRC)

VickersHardnessNumber

(HV)

15-NSCALE,15-kgf

(HR 15-N)

Rockwell Superficial Hardness Number

30-NSCALE,30-kgf

(HR 30-N)

45-NSCALE,45-kgf

(HR 45-N)

100 93.1 83.1 72.9 24099 92.8 82.5 71.9 23498 92.5 81.8 70.9 22897 92.1 81.1 69.9 22296 91.8 80.4 68.9 21695 91.5 79.8 67.9 21094 91.2 79.1 66.9 20593 90.8 78.4 65.9 20092 90.5 77.8 64.8 19591 90.2 77.1 63.8 19090 89.9 76.4 62.8 18589 89.5 75.8 61.8 18088 89.2 75.1 60.8 17687 89.9 74.4 59.8 17286 88.6 73.8 58.8 16985 88.2 73.1 57.8 16584 87.9 72.4 56.8 16283 87.6 71.8 55.8 15982 87.3 71.1 54.8 15681 86.9 70.4 53.8 15380 86.6 69.7 52.8 15079 86.3 69.1 51.8 14778 86.0 68.4 50.8 14477 85.6 67.7 49.8 14176 85.3 67.1 48.8 13975 85.0 66.4 47.8 13774 84.7 65.7 46.8 13573 84.3 65.1 45.8 13272 84.0 64.4 44.8 13071 83.7 63.7 43.8 12770 83.4 63.1 42.8 12569 83.0 62.4 41.8 12368 82.7 61.7 40.8 12167 82.4 61.0 39.8 11966 82.1 60.4 38.7 11765 81.8 59.7 37.7 11664 81.4 59.0 36.7 11463 81.1 58.4 35.7 11262 80.8 57.7 34.7 11061 80.5 57.0 33.7 10860 80.1 56.4 32.7 107

Rockwell BHardness Number,100 kgf(HRB)

VickersHardnessNumber

(HV)

30-TSCALE,30-kgf

(HR 30-T)

45-TSCALE,45-kgf

(HR 45-T)

15-TSCALE,15-kgf

(HR 15-T)

Rockwell BHardness Number,100 kgf,1/16-in.

(1.588-mm)Ball

VickersHardnessNumber

(HV)

15-TSCALE,15-kgf,1/16-in

(1.588-mm)Ball

30-TSCALE,30-kgf

1/16-in.(1.588-mm)

Ball

45-TSCALE,45-kgf

1/16-in.(1.588-mm)

Ball

Rockwell Superficial Hardness Number

59 79.8 55.7 31.7 10658 79.5 55.0 30.7 10457 79.2 54.4 29.7 10356 78.8 53.7 28.7 10155 78.5 53.0 27.7 10054 78.2 52.4 26.7 -53 77.9 51.7 25.7 -52 77.5 51.0 24.7 -51 77.2 50.3 23.7 -50 76.9 49.7 22.7 -49 76.6 49.0 21.7 -48 76.2 48.3 20.7 -47 75.9 47.7 19.7 -46 75.6 47.0 18.7 -45 75.3 46.3 17.7 -44 74.9 45.7 16.7 -43 74.6 45.0 15.7 -42 74.3 44.3 14.7 -41 74.0 43.7 13.6 -40 73.6 43.0 12.6 -39 73.3 42.3 11.6 -38 73.0 41.6 10.6 -37 72.7 41.0 9.6 -36 72.3 40.3 8.6 -35 72.0 39.6 7.6 -34 71.7 39.0 6.6 -33 71.4 38.3 5.6 -32 71.0 37.6 4.6 -31 70.7 37.0 3.6 -30 70.4 36.3 2.6 -

Rockwell Superficial Hardness Number

Tabela de equivalência de - dureza - ASTM E140 - 05Tabela 1

Tabela de equivalência de - dureza - ASTM E140 - 05Tabela 2

Tabela de Equivalência de Normas para Aços Carbono e Aços Ligados

Tabela de Equivalências Internacionais(1) (2)

ABNT SAE/AISI DIN BS JIS ASTMNBR NM 87 : 1996 SAE J403 : 1994 EN 10132-3 : 2000 EN 10132-4 : 2000 17200 : 1984 17222 : 1979 17350 : 1980 1449 : 1991 G 4051 : 1979 G 4401 : 1983 A682M : 1998

1020 1020 C22E(3) Ck22 S20C

1035 1035 C35E Ck35 S35C 1035

1045 1045 C45E Ck45 C 45 W (4) S45C 1045

1050 1050 C50E Ck50 CS50 S50C 1050

1055 1055 C55E C55S Ck55 Ck55 S55C 1055

1060 1060 C60E C60S Ck60 Ck60 C 60 W (4) CS60 S58C 1060

1070 1070 C67S Ck67 CS70 1070

1074 1074 C75S Ck75 1074

1080 1080 CS80 1080

1095 1095 CS95 SK 4 1095

6151 51CrV4 50CrV4 50CrV4 51CrV4

6158

(1) Propriedades Mecânicas e condição de fornecimento devem ser acordados na hora da consulta e encomenda.

(2) Esta tabela refere-se à equivalência entre normas apenas com o propósito de orientação, necessitando de análise da especificação do cliente.

(3) % Manganês - 0,30/0,60, ao invés de 0,40/0,70% mencionado na norma.

(4) Meio de Têmpera - O = Óleo, PB-Bi = Chumbo Bismuto, ao invés de W(água), mencionado na norma.

Consulte sempre nosso departamento técnico. Você vai se surpreender.www.armco.com.br