Hardness comparison 5176764 162878970 2007-10-07T15:27:57Z Variable 155722 fix table... There are a large number of hardness testing methods available (eg. Vickers, Brinell and Rockwell). Although it is impossible in many cases to give an exact conversion it is possible to give a comparison table. == Hardness Comparison Table == {| class="wikitable" !Brinell <br>(10 mm Ball, 3000 kg load)!!Vickers <br>(120 kg)!!Rockwell C <br> (120 degree cone 150 kg)!!Rockwell B <br> (1/16" ball 100 kg) |- |800||-||72||- |- |780||1220||71||- |- |760||1170||70||- |- |745||1114||68||- |- |725||1060||67||- |- |712||1021||66||- |- |682||940||65||- |- |668||905||64||- |- |652||867||63||- |- |626||803||62||- |- |614||775||61||- |- |601||746||60||- |- |590||727||59||- |- |576||694||57||- |- |552||649||56||- |- |545||639||55||- |- |529||606||54||- |- |514||587||53||120 |- |502||565||52||119 |- |495||551||51||119 |- |477||534||49||118 |- |461||502||48||117 |- |451||489||47||117 |- |444||474||46||116 |- |427||460||45||115 |- |415||435||44||115 |- |401||423||43||114 |- |388||401||42||114 |- |375||390||41||113 |- |370||385||40||112 |- |362||380||39||111 |- |351||361||38||111 |- |346||352||37||110 |- |341||344||37||110 |- |331||335||36||109 |- |323||320||35||109 |- |311||312||34||108 |- |301||305||33||107 |- |293||291||32||106 |- |285||285||31||105 |- |276||278||30||105 |- |269||272||29||104 |- |261||261||28||103 |- |258||258||27||102 |- |249||250||25||101 |- |245||246||24||100 |- |240||240||23||99 |- |237||235||23||99 |- |229||226||22||98 |- |224||221||21||97 |- |217||217||20||96 |- |211||213||19||95 |- |206||209||18||94 |- |203||201||17||94 |- |200||199||16||93 |- |196||197||15||92 |- |191||190||14||92 |- |187||186||13||91 |- |185||184||12||91 |- |183||183||11||90 |- |180||177||10||89 |- |175||174||9||88 |- |170||191||7||87 |- |167||168||6||87 |- |165||165||5||86 |- |163||162||4||85 |- |160||159||3||84 |- |156||154||2||83 |- |154||152||1||82 |- |152||150||-||82 |- |150||149||-||81 |- |147||147||-||80 |- |145||146||-||79 |- |143||144||-||79 |- |141||142||-||78 |- |140||141||-||77 |- |135||135||-||75 |- |130||130||-||72 |- |114||120||-||67 |- |105||110||-||62 |- |95||100||-||56 |- |90||95||-||52 |- |81||85||-||41 |- |76||80||-||37 |- |} == See also == * [[Vickers hardness test]] * [[Brinell hardness test]] * [[Rockwell scale]] [[Category:Hardness tests|*]]