Wall Chart for Hardness Testing
1
HRA HRB HRC HRD HR15N HR30N HR45N HV HB Rm 85.6 68.0 76.9 93.2 84.4 75.4 940.0 85.3 67.5 76.5 93.0 84.0 74.8 920.0 85.0 67.0 76.1 92.9 83.6 74.2 900.0 84.7 66.4 75.7 92.7 83.1 73.6 880.0 84.4 65.9 75.3 92.5 82.7 73.1 860.0 84.1 65.3 74.8 92.3 82.2 72.2 840.0 83.8 64.7 74.3 92.1 81.7 71.8 820.0 83.4 64.0 73.8 91.8 81.1 71.0 800.0 83.0 63.3 73.3 91.5 80.4 70.2 780.0 82.6 62.5 72.6 91.2 79.7 69.4 760.0 82.2 61.8 72.1 91.0 79.1 68.6 740.0 81.8 61.0 71.5 90.7 78.4 67.7 720.0 81.3 60.1 70.8 90.3 77.6 66.7 700.0 81.1 59.7 70.5 90.1 77.2 66.2 690.0 80.8 59.2 70.1 89.8 76.8 65.7 680.0 80.6 58.8 69.8 89.7 76.4 65.3 670.0 80.3 58.3 69.4 89.5 75.9 64.7 660.0 80.0 57.8 69.0 89.2 75.5 64.1 650.0 618.0 2180.0 79.8 57.3 68.7 89.0 75.1 63.5 640.0 608.0 2145.0 79.5 56.8 68.3 88.8 74.6 63.0 630.0 599.0 2105.0 79.2 56.3 67.9 88.5 74.2 62.4 620.0 589.0 2070.0 78.9 55.7 67.5 88.2 73.6 61.7 610.0 580.0 2030.0 78.6 55.2 67.0 88.0 73.2 61.2 600.0 570.0 1995.0 78.4 54.7 66.7 87.8 72.7 60.5 590.0 561.0 1955.0 78.0 54.1 66.2 87.5 72.1 59.9 580.0 551.0 1920.0 77.8 53.6 65.8 87.2 71.7 59.3 570.0 542.0 1880.0 77.4 53.0 65.4 86.9 71.2 58.6 560.0 532.0 1845.0 77.0 52.3 64.8 86.6 70.5 57.8 550.0 523.0 1810.0 76.7 51.7 64.4 86.3 70.0 57.0 540.0 513.0 1775.0 76.4 51.1 63.9 86.0 69.5 56.2 530.0 504.0 1740.0 76.1 50.5 63.5 85.7 69.0 55.6 520.0 494.0 1700.0 75.7 49.8 62.9 85.4 68.3 54.7 510.0 485.0 1665.0 75.3 49.1 62.2 85.0 67.7 53.9 500.0 475.0 1630.0 74.9 48.4 61.6 84.7 67.1 53.1 490.0 466.0 1595.0 74.5 47.7 61.3 84.3 66.4 52.2 480.0 456.0 1555.0 74.1 46.9 60.7 83.9 65.7 51.3 470.0 447.0 1520.0 73.6 46.1 60.1 83.6 64.9 50.4 460.0 437.0 1485.0 73.3 45.3 59.4 83.2 64.3 49.4 450.0 428.0 1455.0 73.0 44.5 58.8 82.8 63.5 48.4 440.0 418.0 1420.0 72.3 43.6 58.2 82.3 62.7 47.4 430.0 408.0 1385.0 71.8 42.7 57.5 81.8 61.9 46.4 420.0 399.0 1350.0 71.4 41.8 56.8 81.4 61.1 45.3 410.0 389.0 1320.0 70.8 40.8 56.0 80.8 60.2 44.1 400.0 380.0 1290.0 70.3 39.8 55.3 80.3 59.3 42.9 390.0 370.0 1255.0 69.8 38.8 54.4 79.8 58.4 41.7 380.0 361.0 1220.0 69.2 37.7 53.6 79.2 57.4 40.4 370.0 351.0 1190.0 68.7 36.6 52.8 78.6 56.4 39.1 360.0 342.0 1155.0 68.1 35.5 51.9 78.0 55.4 37.8 350.0 332.0 1125.0 HRA HRB HRC HRD HR15N HR30N HR45N HV HB Rm 67.6 34.4 51.1 77.4 54.4 36.5 340.0 323.0 1095.0 67.0 33.3 50.2 76.8 53.6 35.2 330.0 313.0 1060.0 66.4 32.2 49.4 76.2 52.3 33.9 320.0 304.0 1030.0 65.8 31.0 48.4 75.6 51.3 32.5 310.0 294.0 995.0 65.2 29.8 47.5 74.9 50.2 31.1 300.0 285.0 965.0 64.8 29.2 47.1 74.6 49.7 30.4 295.0 280.0 950.0 64.5 105.0 28.5 46.5 74.2 49.0 29.5 290.0 275.0 930.0 64.2 104.5 27.8 46.0 73.8 48.4 28.7 285.0 271.0 915.0 63.8 104.0 27.1 45.3 73.4 47.8 27.9 280.0 266.0 900.0 63.5 103.0 26.4 44.9 73.0 47.2 27.1 275.0 261.0 880.0 63.1 102.0 25.6 44.3 72.6 46.4 26.2 270.0 256.0 865.0 62.7 101.5 24.8 43.7 72.1 45.7 25.2 265.0 252.0 850.0 HRA HRB HRC HRD HR15T HR30T HR45T HV HB Rm 62.4 101.0 24.0 43.1 260.0 247.0 835.0 62.0 100.0 23.1 42.2 93.0 82.0 72.0 255.0 242.0 820.0 61.6 99.5 22.2 41.7 92.8 81.6 71.5 250.0 237.0 800.0 61.2 98.8 21.3 41.1 92.5 81.3 70.8 245.0 233.0 785.0 60.7 98.1 20.3 40.3 92.3 81.0 70.0 240.0 228.0 770.0 97.4 92.1 80.6 69.4 235.0 223.0 755.0 96.7 91.9 80.2 68.7 230.0 219.0 740.0 96.0 91.7 79.7 68.0 225.0 214.0 720.0 95.0 91.5 79.2 67.0 220.0 209.0 705.0 94.0 91.2 78.5 66.0 215.0 204.0 690.0 93.5 90.9 78.0 65.5 210.0 199.0 675.0 92.5 90.6 77.5 64.5 205.0 195.0 660.0 91.5 90.3 77.0 63.5 200.0 190.0 640.0 90.5 90.0 76.4 62.5 195.0 185.0 625.0 89.5 89.6 75.8 61.5 190.0 181.0 610.0 88.3 89.3 75.2 60.4 185.0 176.0 595.0 87.1 89.0 74.6 59.3 180.0 171.0 575.0 86.0 88.5 74.0 58.6 175.0 166.0 560.0 85.0 88.0 73.5 58.0 170.0 162.0 545.0 83.2 87.5 72.5 56.4 165.0 156.0 530.0 81.7 87.0 71.2 54.7 160.0 152.0 510.0 80.2 86.5 70.0 53.0 155.0 147.0 495.0 78.7 86.0 69.0 51.0 150.0 143.0 480.0 76.8 85.5 68.0 50.0 145.0 138.0 465.0 75.0 85.0 67.0 48.5 140.0 133.0 450.0 73.0 84.5 65.5 46.5 135.0 128.0 430.0 71.2 83.8 64.0 44.5 130.0 124.0 415.0 69.0 83.0 62.5 42.5 125.0 119.0 400.0 66.7 82.2 61.5 40.5 120.0 114.0 385.0 64.5 81.5 59.5 38.0 115.0 109.0 370.0 62.3 80.8 58.0 35.5 110.0 105.0 350.0 59.3 80.0 56.0 32.0 105.0 100.0 335.0 56.2 79.0 53.5 29.0 100.0 95.0 320.0 52.0 77.5 51.0 25.0 95.0 90.0 305.0 48.0 76.0 48.5 20.5 90.0 85.0 285.0 41.0 74.0 43.5 13.5 85.0 81.0 270.0 80.0 76.0 255.0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 D=1 D=2.5 D=5 D=10 d (mm) 0.08 0.2 0.18 0.3 0.33 0.4 0.54 0.5 0.80 0.29 0.6 0.40 0.7 0.53 0.8 0.67 0.9 0.83 1.0 1.02 1.1 1.23 0.58 1.2 1.46 0.69 1.3 1.72 0.80 1.4 2.00 0.92 1.5 1.05 1.6 1.19 1.7 1.34 1.8 1.50 1.9 1.67 2.0 2.04 2.2 2.46 1.17 2.4 2.92 1.38 2.6 3.43 1.60 2.8 4.00 1.84 3.0 2.10 3.2 2.68 3.6 3.34 4.0 4.08 4.4 4.91 4.8 5.83 5.2 6.86 5.6 8.00 6.0 ZHV30/zwickiLine ZHU2.5/zwickiLine ZHU250 ZHR4150AK ZHR8150SK ZHV30-s ZHVμ ZHV10 ZHU250CL ZHN2.0 Nanoindenter h ≥ 8h ≥ 3d ≥ 2.5d d d h ≥ 10h ≥ 1.5d (d : h ≈ 7 : 1) ≥ 3d ≥ 2.5d ≥ 6d ≥ 3d d h ≥ 10h (cone) ≥ 1.5d (ball) ≥ 3 mm ≥ 3 mm ≥ 6 mm ≥ 1 or 2 mm (HRC, D, A) (HR...N/T) ZHR valve testing ZHV, ZHR handling system Measurement quantity Rockwell hardness HR. The inden- tation depth h is measured in mm. Definition HR = N - h/S N ... Numerical value (determined for each Rockwell method) h ... Remaining indentation depth in mm S ... Scale value in mm This value is the change in inden- tation depth in mm that corres- ponds to one Rockwell unit. HRC,D,A = 100 - h / 0.002 HRG,B,F,K,E,H = 130 - h / 0.002 HR...N,T = 100 - h / 0.001 Measurement quantity Brinell hardness HB. Two diame- ters, at right angles to one another, of the remaining indentation in the specimen surface are measured. Definition HB = 0.102 F/A = 0.102 · 2F/ (π D(D-√D²-d²)) F ... Test load in N A ... Indentation surface in mm² D ... ball indentor dia. in mm d ... arithmetic average from two measured indentation Measurement quantity Vickers hardness HV. The lengths of both diagonals of the remaining test indentation are measured. Definition HV = 0.102 F/A = 0.1891 F/d² F ... Test load in N A ... Indentation surface in mm² d ... Arithmetic average value of the diagonal lengths in mm d 1 d 2 h d 1 d 2 minimum thickness: Reference level Initial position Loading position Measurement position F 0 F m F 0 F Loading position Measurement position minimum specimen thickness: indentation distances: Loading position Measurement position minimum specimen thickness: indentation distances: indentation distances: F token indenter pre-force [N] total-load [N] scale range HRC diamond cone 98.07 1471 20…70 HRC HRD diamond cone 98.07 980.7 40…77 HRD HRA diamond cone 98.07 588.4 60…95 HRA HRG 1/16" HM-ball 98.07 1471 30…94 HRG HRB 1/16" HM-ball 98.07 980.7 10…100 HRB HRF 1/16" HM-ball 98.07 588.4 60…100 HRF HRK 1/8" HM-ball 98.07 1471 40…100 HRK HRE 1/8" HM-ball 98.07 980.7 70…100 HRE HRH 1/8" HM-ball 98.07 588.4 80…100 HRH HR15N diamond cone 29.42 147.1 70…94 HR15N HR30N diamond cone 29.42 294.2 42…86 HR30N HR45N diamond cone 29.42 441.3 20…77 HR45N HR15T 1/16" HM-ball 29.42 147.1 67…93 HR15T HR30T 1/16" HM-ball 29.42 294.2 29…82 HR30T HR45T 1/16" HM-ball 29.42 441.3 10…72 HR45T (steel, copper) (light metal) Hardness testing Intelligent Testing Rockwell ISO 6508 / ASTM E 18 Vickers ISO 6507 / ASTM E 384 Brinell and Universal ISO 6506 / ASTM E 10 No responsibility is taken for the correctness of this information. All data at ambient temperature. All rights reserved. Copyright by Zwick 2015 Indentec Hardness Testing Machines Limited Unit 30 Navigation Drive, Hurst Business Park, Brierley Hill, West Midlands, DY5 1UT UK Phone +44 (0) 1384 484 070 Fax +44 (0) 1384 481 074 www.indentec.com [email protected] ASMEC Advanced Surface Mechanics GmbH Bautzner Landstrasse 45 D-01454 Radeberg Germany Phone +49 (0) 351 2695 345 Fax +49 (0) 351 2695 346 www.asmec.de [email protected] Zwick GmbH & Co. KG August-Nagel-Strasse 11 D-89079 Ulm Germany Phone +49 (0) 73 05-10-0 Fax +49 (0) 73 05-10-200 www.zwick.com [email protected] Rockwell Ball Scales (HRB, HRF, etc.) Rockwell Diamond Scales (HRA, HRC, etc.) HRN Superficial Rockwell Scales Hardness Minimum Thickness The above graphs are based on the internationally accepted recommendation that specifies a minimum thick- ness, not less than ten times (fifteen times) the depth indentation using a cone indenter (ball indenter). It is also recommended that the indentation causes no visible mark or deformation on the under surface of the test piece. Minimum Thickness Requirements average indentation diameter minimum specimen thickness (mm) for Brinell Conversion of hardness to hardness and hardness to tensile strenght for unalloyed and low-alloy steels and cast iron (extract of ISO 18265 table A.1) HRT Superficial Rockwell Scales
-
Upload
ali-clubist -
Category
Documents
-
view
67 -
download
2
description
Wall Chart for Hardness Testin
Transcript of Wall Chart for Hardness Testing
HRA HRB HRC HRD HR15N HR30N HR45N HV HB Rm 85.6 68.0 76.9 93.2 84.4 75.4 940.0 85.3 67.5 76.5 93.0 84.0 74.8 920.0 85.0 67.0 76.1 92.9 83.6 74.2 900.0 84.7 66.4 75.7 92.7 83.1 73.6 880.0 84.4 65.9 75.3 92.5 82.7 73.1 860.0 84.1 65.3 74.8 92.3 82.2 72.2 840.0 83.8 64.7 74.3 92.1 81.7 71.8 820.0 83.4 64.0 73.8 91.8 81.1 71.0 800.0 83.0 63.3 73.3 91.5 80.4 70.2 780.0 82.6 62.5 72.6 91.2 79.7 69.4 760.0 82.2 61.8 72.1 91.0 79.1 68.6 740.0 81.8 61.0 71.5 90.7 78.4 67.7 720.0 81.3 60.1 70.8 90.3 77.6 66.7 700.0 81.1 59.7 70.5 90.1 77.2 66.2 690.0 80.8 59.2 70.1 89.8 76.8 65.7 680.0 80.6 58.8 69.8 89.7 76.4 65.3 670.0 80.3 58.3 69.4 89.5 75.9 64.7 660.0 80.0 57.8 69.0 89.2 75.5 64.1 650.0 618.0 2180.0 79.8 57.3 68.7 89.0 75.1 63.5 640.0 608.0 2145.0 79.5 56.8 68.3 88.8 74.6 63.0 630.0 599.0 2105.0 79.2 56.3 67.9 88.5 74.2 62.4 620.0 589.0 2070.0 78.9 55.7 67.5 88.2 73.6 61.7 610.0 580.0 2030.0 78.6 55.2 67.0 88.0 73.2 61.2 600.0 570.0 1995.0 78.4 54.7 66.7 87.8 72.7 60.5 590.0 561.0 1955.0 78.0 54.1 66.2 87.5 72.1 59.9 580.0 551.0 1920.0 77.8 53.6 65.8 87.2 71.7 59.3 570.0 542.0 1880.0 77.4 53.0 65.4 86.9 71.2 58.6 560.0 532.0 1845.0 77.0 52.3 64.8 86.6 70.5 57.8 550.0 523.0 1810.0 76.7 51.7 64.4 86.3 70.0 57.0 540.0 513.0 1775.0 76.4 51.1 63.9 86.0 69.5 56.2 530.0 504.0 1740.0 76.1 50.5 63.5 85.7 69.0 55.6 520.0 494.0 1700.0 75.7 49.8 62.9 85.4 68.3 54.7 510.0 485.0 1665.0 75.3 49.1 62.2 85.0 67.7 53.9 500.0 475.0 1630.0 74.9 48.4 61.6 84.7 67.1 53.1 490.0 466.0 1595.0 74.5 47.7 61.3 84.3 66.4 52.2 480.0 456.0 1555.0 74.1 46.9 60.7 83.9 65.7 51.3 470.0 447.0 1520.0 73.6 46.1 60.1 83.6 64.9 50.4 460.0 437.0 1485.0 73.3 45.3 59.4 83.2 64.3 49.4 450.0 428.0 1455.0 73.0 44.5 58.8 82.8 63.5 48.4 440.0 418.0 1420.0 72.3 43.6 58.2 82.3 62.7 47.4 430.0 408.0 1385.0 71.8 42.7 57.5 81.8 61.9 46.4 420.0 399.0 1350.0 71.4 41.8 56.8 81.4 61.1 45.3 410.0 389.0 1320.0 70.8 40.8 56.0 80.8 60.2 44.1 400.0 380.0 1290.0 70.3 39.8 55.3 80.3 59.3 42.9 390.0 370.0 1255.0 69.8 38.8 54.4 79.8 58.4 41.7 380.0 361.0 1220.0 69.2 37.7 53.6 79.2 57.4 40.4 370.0 351.0 1190.0 68.7 36.6 52.8 78.6 56.4 39.1 360.0 342.0 1155.0 68.1 35.5 51.9 78.0 55.4 37.8 350.0 332.0 1125.0
HRA HRB HRC HRD HR15N HR30N HR45N HV HB Rm 67.6 34.4 51.1 77.4 54.4 36.5 340.0 323.0 1095.0 67.0 33.3 50.2 76.8 53.6 35.2 330.0 313.0 1060.0 66.4 32.2 49.4 76.2 52.3 33.9 320.0 304.0 1030.0 65.8 31.0 48.4 75.6 51.3 32.5 310.0 294.0 995.0 65.2 29.8 47.5 74.9 50.2 31.1 300.0 285.0 965.0 64.8 29.2 47.1 74.6 49.7 30.4 295.0 280.0 950.0 64.5 105.0 28.5 46.5 74.2 49.0 29.5 290.0 275.0 930.0 64.2 104.5 27.8 46.0 73.8 48.4 28.7 285.0 271.0 915.0 63.8 104.0 27.1 45.3 73.4 47.8 27.9 280.0 266.0 900.0 63.5 103.0 26.4 44.9 73.0 47.2 27.1 275.0 261.0 880.0 63.1 102.0 25.6 44.3 72.6 46.4 26.2 270.0 256.0 865.0 62.7 101.5 24.8 43.7 72.1 45.7 25.2 265.0 252.0 850.0
HRA HRB HRC HRD HR15T HR30T HR45T HV HB Rm 62.4 101.0 24.0 43.1 260.0 247.0 835.0 62.0 100.0 23.1 42.2 93.0 82.0 72.0 255.0 242.0 820.0 61.6 99.5 22.2 41.7 92.8 81.6 71.5 250.0 237.0 800.0 61.2 98.8 21.3 41.1 92.5 81.3 70.8 245.0 233.0 785.0 60.7 98.1 20.3 40.3 92.3 81.0 70.0 240.0 228.0 770.0
97.4 92.1 80.6 69.4 235.0 223.0 755.0 96.7 91.9 80.2 68.7 230.0 219.0 740.0 96.0 91.7 79.7 68.0 225.0 214.0 720.0 95.0 91.5 79.2 67.0 220.0 209.0 705.0 94.0 91.2 78.5 66.0 215.0 204.0 690.0 93.5 90.9 78.0 65.5 210.0 199.0 675.0 92.5 90.6 77.5 64.5 205.0 195.0 660.0 91.5 90.3 77.0 63.5 200.0 190.0 640.0 90.5 90.0 76.4 62.5 195.0 185.0 625.0 89.5 89.6 75.8 61.5 190.0 181.0 610.0 88.3 89.3 75.2 60.4 185.0 176.0 595.0 87.1 89.0 74.6 59.3 180.0 171.0 575.0 86.0 88.5 74.0 58.6 175.0 166.0 560.0 85.0 88.0 73.5 58.0 170.0 162.0 545.0 83.2 87.5 72.5 56.4 165.0 156.0 530.0 81.7 87.0 71.2 54.7 160.0 152.0 510.0 80.2 86.5 70.0 53.0 155.0 147.0 495.0 78.7 86.0 69.0 51.0 150.0 143.0 480.0 76.8 85.5 68.0 50.0 145.0 138.0 465.0 75.0 85.0 67.0 48.5 140.0 133.0 450.0 73.0 84.5 65.5 46.5 135.0 128.0 430.0 71.2 83.8 64.0 44.5 130.0 124.0 415.0 69.0 83.0 62.5 42.5 125.0 119.0 400.0 66.7 82.2 61.5 40.5 120.0 114.0 385.0 64.5 81.5 59.5 38.0 115.0 109.0 370.0 62.3 80.8 58.0 35.5 110.0 105.0 350.0 59.3 80.0 56.0 32.0 105.0 100.0 335.0 56.2 79.0 53.5 29.0 100.0 95.0 320.0 52.0 77.5 51.0 25.0 95.0 90.0 305.0 48.0 76.0 48.5 20.5 90.0 85.0 285.0 41.0 74.0 43.5 13.5 85.0 81.0 270.0
80.0 76.0 255.0
0 10 20 30 40 50 60 70 80 90 100 110 120 130
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
D=1 D=2.5 D=5 D=10 d (mm)0.08 0.20.18 0.30.33 0.40.54 0.50.80 0.29 0.6
0.40 0.70.53 0.80.67 0.90.83 1.01.02 1.11.23 0.58 1.21.46 0.69 1.31.72 0.80 1.42.00 0.92 1.5
1.05 1.61.19 1.71.34 1.81.50 1.91.67 2.02.04 2.22.46 1.17 2.42.92 1.38 2.63.43 1.60 2.84.00 1.84 3.0
2.10 3.22.68 3.63.34 4.04.08 4.44.91 4.85.83 5.26.86 5.68.00 6.0
ZHV30/zwickiLine ZHU2.5/zwickiLine ZHU250
ZHR4150AK
ZHR8150SK
ZHV30-s ZHVμ
ZHV10
ZHU250CL ZHN2.0 Nanoindenter
h
≥ 8
h
≥ 3d≥ 2.5d
d
d
h≥
10
h
≥ 1
.5d
(d : h ≈ 7 : 1)
≥ 3d≥ 2.5d
≥ 6d≥ 3d
d
h
≥ 10h (cone)
≥ 1.5d (ball)
≥ 3 mm≥ 3 mm
≥ 6 mm≥ 1 or 2 mm
(HRC, D, A)
(HR...N/T)
ZHR valve testing
ZHV, ZHR handling system
MeasurementquantityRockwellhardnessHR.Theinden-tationdepthhismeasuredinmm.
DefinitionHR=N-h/SN...Numericalvalue(determinedforeachRockwellmethod)h...RemainingindentationdepthinmmS...ScalevalueinmmThisvalueisthechangeininden-tationdepthinmmthatcorres-pondstooneRockwellunit.
HRC,D,A = 100 - h/0.002 HRG,B,F,K,E,H = 130 - h/0.002
HR...N,T = 100 - h/0.001
MeasurementquantityBrinellhardnessHB.Twodiame-ters,atrightanglestooneanother,oftheremainingindentationinthespecimensurfacearemeasured.
DefinitionHB=0.102F/A=0.102·2F/(πD(D-√D²-d²))F...TestloadinNA...Indentationsurfaceinmm²D...ballindentordia.inmmd...arithmeticaveragefromtwomeasuredindentation
MeasurementquantityVickershardnessHV.Thelengthsofbothdiagonalsoftheremainingtestindentationaremeasured.
DefinitionHV=0.102F/A =0.1891F/d²F...TestloadinNA...Indentationsurfaceinmm²d...Arithmeticaveragevalueof
thediagonallengthsinmm
F
d1d2
MeasurementPosition
Loadingposition
Initialposition
Loadingposition
Measurementposition
hRefe
ren
ce leve
l F0 Fm F0 F
d1d2
Measurementposition
Loadingposition
minimumthickness:
Ref
eren
cele
vel
Initialposition
Loadingposition
Measurementposition
F0 Fm F0 F
Loadingposition
Measurementposition
minimumspecimenthickness:
indentationdistances:
Loadingposition
Measurementposition
minimumspecimenthickness:
indentationdistances:indentationdistances: F
token indenter pre-force [N] total-load [N] scale range
HRC diamond cone 98.07 1471 20…70 HRC
HRD diamond cone 98.07 980.7 40…77 HRD
HRA diamond cone 98.07 588.4 60…95 HRA
HRG 1/16" HM-ball 98.07 1471 30…94 HRG
HRB 1/16" HM-ball 98.07 980.7 10…100 HRB
HRF 1/16" HM-ball 98.07 588.4 60…100 HRF
HRK 1/8" HM-ball 98.07 1471 40…100 HRK
HRE 1/8" HM-ball 98.07 980.7 70…100 HRE
HRH 1/8" HM-ball 98.07 588.4 80…100 HRH
HR15N diamond cone 29.42 147.1 70…94 HR15N
HR30N diamond cone 29.42 294.2 42…86 HR30N
HR45N diamond cone 29.42 441.3 20…77 HR45N
HR15T 1/16" HM-ball 29.42 147.1 67…93 HR15T
HR30T 1/16" HM-ball 29.42 294.2 29…82 HR30T
HR45T 1/16" HM-ball 29.42 441.3 10…72 HR45T
(steel,copper) (lightmetal)
Hardness testing
IntelligentTesting
Rockwell ISO 6508 / ASTM E 18
Vickers ISO 6507 / ASTM E 384
Brinell and UniversalISO 6506 / ASTM E 10
No
resp
onsi
bilit
yis
take
nfo
rth
eco
rrec
tnes
sof
this
info
rmat
ion.
All
data
ata
mbi
entt
empe
ratu
re.A
llrig
hts
rese
rved
.Cop
yrig
htb
yZw
ick
2015
Indentec Hardness Testing Machines LimitedUnit 30 Navigation Drive, Hurst Business Park, Brierley Hill, West Midlands, DY5 1UTUKPhone +44 (0) 1384 484 070Fax +44 (0) 1384 481 074www.indentec.com [email protected]
ASMEC Advanced Surface Mechanics GmbHBautzner Landstrasse 45D-01454 RadebergGermanyPhone +49 (0) 351 2695 345Fax +49 (0) 351 2695 [email protected]
Zwick GmbH & Co. KGAugust-Nagel-Strasse 11D-89079 UlmGermanyPhone +49 (0) 73 05-10-0Fax +49 (0) 73 05-10-200www.zwick.com [email protected]
RockwellBallScales(HRB,HRF,etc.)RockwellDiamondScales(HRA,HRC,etc.)
HRNSuperficialRockwellScales
Hardness
Min
imum
Thic
kness
Theabovegraphsarebasedontheinternationallyacceptedrecommendationthatspecifiesaminimumthick-ness,notlessthantentimes(fifteentimes)thedepthindentationusingaconeindenter(ballindenter).Itisalsorecommendedthattheindentationcausesnovisiblemarkordeformationontheundersurfaceofthetestpiece.
MinimumThicknessRequirements average indentation diameter
minimum specimen thickness (mm)for Brinell
Conversion of hardness to hardness and hardness to tensile strenght for unalloyed and low-alloy steels and cast iron (extract of ISO 18265 table A.1)
HRTSuperficialRockwellScales
