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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hardness comparison</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="This article exist only in this language. 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href="/wiki/Vickers_hardness_test" title="Vickers hardness test">Vickers</a>, <a href="/wiki/Brinell_scale" title="Brinell scale">Brinell</a>, <a href="/wiki/Rockwell_scale" title="Rockwell scale">Rockwell</a>, <a href="/wiki/Meyer_hardness_test" title="Meyer hardness test">Meyer</a> and <a href="/wiki/Leeb_rebound_hardness_test" title="Leeb rebound hardness test">Leeb</a> tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for <a href="/wiki/Steel" title="Steel">steels</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Hardness_comparison_table">Hardness comparison table</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hardness_comparison&action=edit&section=1" title="Edit section: Hardness comparison table"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Hardness_comparisons_(Brinell_hardness).png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Hardness_comparisons_%28Brinell_hardness%29.png/400px-Hardness_comparisons_%28Brinell_hardness%29.png" decoding="async" width="400" height="272" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Hardness_comparisons_%28Brinell_hardness%29.png/600px-Hardness_comparisons_%28Brinell_hardness%29.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Hardness_comparisons_%28Brinell_hardness%29.png/800px-Hardness_comparisons_%28Brinell_hardness%29.png 2x" data-file-width="1365" data-file-height="927" /></a><figcaption></figcaption></figure> <table class="wikitable"> <tbody><tr> <th><a href="/wiki/Brinell_hardness_test" class="mw-redirect" title="Brinell hardness test">Brinell</a> HB <br />(10 mm Ball, 3000 kg load)</th> <th><a href="/wiki/Vickers_hardness_test" title="Vickers hardness test">Vickers</a> HV <br />(5 kg)</th> <th><a href="/wiki/Rockwell_hardness_test" class="mw-redirect" title="Rockwell hardness test">Rockwell</a> C HRC <br /> (120 degree cone 150 kg)</th> <th>Rockwell B HRB<br /> (1/16" ball 100 kg)</th> <th><a href="/wiki/Leeb_rebound_hardness_test" title="Leeb rebound hardness test">Leeb</a> HLD<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th></tr> <tr> <td>800</td> <td>-</td> <td>72</td> <td>-</td> <td>856 </td></tr> <tr> <td>780</td> <td>1220</td> <td>71</td> <td>-</td> <td>850 </td></tr> <tr> <td>760</td> <td>1210</td> <td>70</td> <td>-</td> <td>843 </td></tr> <tr> <td>745</td> <td>1114</td> <td>68</td> <td>-</td> <td>837 </td></tr> <tr> <td>725</td> <td>1060</td> <td>67</td> <td>-</td> <td>829 </td></tr> <tr> <td>712</td> <td>1021</td> <td>66</td> <td>-</td> <td>824 </td></tr> <tr> <td>682</td> <td>940</td> <td>65</td> <td>-</td> <td>812 </td></tr> <tr> <td>668</td> <td>905</td> <td>64</td> <td>-</td> <td>806 </td></tr> <tr> <td>652</td> <td>867</td> <td>63</td> <td>-</td> <td>799 </td></tr> <tr> <td>626</td> <td>803</td> <td>62</td> <td>-</td> <td>787 </td></tr> <tr> <td>614</td> <td>775</td> <td>61</td> <td>-</td> <td>782 </td></tr> <tr> <td>601</td> <td>746</td> <td>60</td> <td>-</td> <td>776 </td></tr> <tr> <td>590</td> <td>727</td> <td>59</td> <td>-</td> <td>770 </td></tr> <tr> <td>576</td> <td>694</td> <td>57</td> <td>-</td> <td>763 </td></tr> <tr> <td>552</td> <td>649</td> <td>56</td> <td>-</td> <td>751 </td></tr> <tr> <td>545</td> <td>639</td> <td>55</td> <td>-</td> <td>748 </td></tr> <tr> <td>529</td> <td>606</td> <td>54</td> <td>-</td> <td>739 </td></tr> <tr> <td>514</td> <td>587</td> <td>53</td> <td>120</td> <td>731 </td></tr> <tr> <td>502</td> <td>565</td> <td>52</td> <td>119</td> <td>724 </td></tr> <tr> <td>495</td> <td>551</td> <td>51</td> <td>119</td> <td>719 </td></tr> <tr> <td>477</td> <td>534</td> <td>49</td> <td>118</td> <td>709 </td></tr> <tr> <td>461</td> <td>502</td> <td>48</td> <td>117</td> <td>699 </td></tr> <tr> <td>451</td> <td>489</td> <td>47</td> <td>117</td> <td>693 </td></tr> <tr> <td>444</td> <td>474</td> <td>46</td> <td>116</td> <td>688 </td></tr> <tr> <td>427</td> <td>460</td> <td>45</td> <td>115</td> <td>677 </td></tr> <tr> <td>415</td> <td>435</td> <td>44</td> <td>115</td> <td>669 </td></tr> <tr> <td>401</td> <td>423</td> <td>43</td> <td>114</td> <td>660 </td></tr> <tr> <td>388</td> <td>401</td> <td>42</td> <td>114</td> <td>650 </td></tr> <tr> <td>375</td> <td>390</td> <td>41</td> <td>113</td> <td>640 </td></tr> <tr> <td>370</td> <td>385</td> <td>40</td> <td>112</td> <td>635 </td></tr> <tr> <td>362</td> <td>380</td> <td>39</td> <td>111</td> <td>630 </td></tr> <tr> <td>351</td> <td>361</td> <td>38</td> <td>111</td> <td>622 </td></tr> <tr> <td>346</td> <td>352</td> <td>37</td> <td>110</td> <td>617 </td></tr> <tr> <td>341</td> <td>344</td> <td>37</td> <td>110</td> <td>613 </td></tr> <tr> <td>331</td> <td>335</td> <td>36</td> <td>109</td> <td>605 </td></tr> <tr> <td>323</td> <td>320</td> <td>35</td> <td>109</td> <td>599 </td></tr> <tr> <td>311</td> <td>312</td> <td>34</td> <td>108</td> <td>588 </td></tr> <tr> <td>301</td> <td>305</td> <td>33</td> <td>107</td> <td>579 </td></tr> <tr> <td>293</td> <td>291</td> <td>32</td> <td>106</td> <td>572 </td></tr> <tr> <td>285</td> <td>285</td> <td>31</td> <td>105</td> <td>565 </td></tr> <tr> <td>276</td> <td>278</td> <td>30</td> <td>105</td> <td>557 </td></tr> <tr> <td>269</td> <td>272</td> <td>29</td> <td>104</td> <td>550 </td></tr> <tr> <td>261</td> <td>261</td> <td>28</td> <td>103</td> <td>542 </td></tr> <tr> <td>258</td> <td>258</td> <td>27</td> <td>102</td> <td>539 </td></tr> <tr> <td>249</td> <td>250</td> <td>25</td> <td>101</td> <td>530 </td></tr> <tr> <td>245</td> <td>246</td> <td>24</td> <td>100</td> <td>526 </td></tr> <tr> <td>240</td> <td>240</td> <td>23</td> <td>99</td> <td>521 </td></tr> <tr> <td>237</td> <td>235</td> <td>23</td> <td>99</td> <td>518 </td></tr> <tr> <td>229</td> <td>226</td> <td>22</td> <td>98</td> <td>510 </td></tr> <tr> <td>224</td> <td>221</td> <td>21</td> <td>97</td> <td>505 </td></tr> <tr> <td>217</td> <td>217</td> <td>20</td> <td>96</td> <td>497 </td></tr> <tr> <td>211</td> <td>213</td> <td>19</td> <td>95</td> <td>491 </td></tr> <tr> <td>206</td> <td>209</td> <td>18</td> <td>94</td> <td>485 </td></tr> <tr> <td>203</td> <td>201</td> <td>17</td> <td>94</td> <td>482 </td></tr> <tr> <td>200</td> <td>199</td> <td>16</td> <td>93</td> <td>478 </td></tr> <tr> <td>196</td> <td>197</td> <td>15</td> <td>92</td> <td>474 </td></tr> <tr> <td>191</td> <td>190</td> <td>14</td> <td>92</td> <td>468 </td></tr> <tr> <td>187</td> <td>186</td> <td>13</td> <td>91</td> <td>463 </td></tr> <tr> <td>185</td> <td>184</td> <td>12</td> <td>91</td> <td>461 </td></tr> <tr> <td>183</td> <td>183</td> <td>11</td> <td>90</td> <td>459 </td></tr> <tr> <td>180</td> <td>177</td> <td>10</td> <td>89</td> <td>455 </td></tr> <tr> <td>175</td> <td>174</td> <td>9</td> <td>88</td> <td>449 </td></tr> <tr> <td>170</td> <td>171</td> <td>7</td> <td>87</td> <td>443 </td></tr> <tr> <td>167</td> <td>168</td> <td>6</td> <td>87</td> <td>439 </td></tr> <tr> <td>165</td> <td>165</td> <td>5</td> <td>86</td> <td>437 </td></tr> <tr> <td>163</td> <td>162</td> <td>4</td> <td>85</td> <td>434 </td></tr> <tr> <td>160</td> <td>159</td> <td>3</td> <td>84</td> <td>430 </td></tr> <tr> <td>156</td> <td>154</td> <td>2</td> <td>83</td> <td>425 </td></tr> <tr> <td>154</td> <td>152</td> <td>1</td> <td>82</td> <td>423 </td></tr> <tr> <td>152</td> <td>150</td> <td>-</td> <td>82</td> <td>420 </td></tr> <tr> <td>150</td> <td>149</td> <td>-</td> <td>81</td> <td>417 </td></tr> <tr> <td>147</td> <td>147</td> <td>-</td> <td>80</td> <td>413 </td></tr> <tr> <td>145</td> <td>146</td> <td>-</td> <td>79</td> <td>411 </td></tr> <tr> <td>143</td> <td>144</td> <td>-</td> <td>79</td> <td>408 </td></tr> <tr> <td>141</td> <td>142</td> <td>-</td> <td>78</td> <td>405 </td></tr> <tr> <td>140</td> <td>141</td> <td>-</td> <td>77</td> <td>404 </td></tr> <tr> <td>135</td> <td>135</td> <td>-</td> <td>75</td> <td>389 </td></tr> <tr> <td>130</td> <td>130</td> <td>-</td> <td>72</td> <td>390 </td></tr> <tr> <td>114</td> <td>120</td> <td>-</td> <td>67</td> <td>365 </td></tr> <tr> <td>105</td> <td>110</td> <td>-</td> <td>62</td> <td>350 </td></tr> <tr> <td>95</td> <td>100</td> <td>-</td> <td>56</td> <td>331 </td></tr> <tr> <td>90</td> <td>95</td> <td>-</td> <td>52</td> <td>321 </td></tr> <tr> <td>81</td> <td>85</td> <td>-</td> <td>41</td> <td>300 </td></tr> <tr> <td>76</td> <td>80</td> <td>-</td> <td>37</td> <td>287 </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hardness_comparison&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">H.Pollok, „Umwertung der Skalen“ (“Conversion of Scales”), Qualität und Zuverlässigkeit, Ausgabe 4/2008.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hardness_comparison&action=edit&section=3" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>ISO 18265: "Metallic materials — Conversion of hardness values" (2013)</li> <li>ASTM E140-12B(2019)e1: "Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness" (2019)</li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hardness_comparison&action=edit&section=4" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.engineershandbook.com/Tables/hardness.htm">Hardness Conversion Table – Brinell, Rockwell,Vickers – Various steels </a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111113055336/http://www.engineershandbook.com/Tables/hardness.htm">(Archived)</a> (archived November 11, 2011)</li> <li><a rel="nofollow" class="external text" href="http://www.engineersedge.com/hardness_conversion.htm">Rockwell to Brinell conversion chart</a> (Brinell, Rockwell A,B,C)</li> <li><a rel="nofollow" class="external text" href="http://www.struers.com/default.asp?top_id=5&main_id=25&doc_id=344&target=_self&collapse=1">Struers hardness conversion table</a> (Vickers, Brinell, Rockwell B,C,D)</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: 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