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References include ASM International hardness testing guidance and ASTM designation E140-12b.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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materials composition does this chart cover?","Question",{"text":63,"@type":64},"Cartridge brass with 70% copper and 30% zinc alloy.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"Which hardness scales are included?",{"text":68,"@type":64},"Rockwell (HRB, HRF), Rockwell superficial (HR 15T, HR 30T, HR 45T), Vickers hardness (HV), and Brinell hardness (HBS).",{"name":70,"@type":61,"acceptedAnswer":71},"How are the hardness values used in conversions?",{"text":72,"@type":64},"The table maps a hardness number on one scale to approximate corresponding values on the other listed scales across a range of hardness levels.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},291541,1790319043,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,106,111,115,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & 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Conversion Numbers for Cartridge Brass (70% Copper 30% Zinc Alloy)  \nRockwell Hardness Number Rockwell Superficial Hardness Number  \nVickers  \nHardness (HV)  \nB Scale  \n1/16\" Ball 100 kgf (HRB)  \nF Scale  \n1/16\" Ball 60 kg (HRF)  \n15T Scale  \n1/16\" Ball 15 kgf (HR 15T)  \n30T Scale  \n1/16\" Ball 30 kgf (HR 30T)  \n45T Scale  \n1/16\" Ball 45 kgf (HR 45T)  \nBrinell  \n10mm Ball 500 kgf (HBS)  \n\n| 196 | 93.5 | 110.0 | 90.0 | 77.5 | 66.0 | 169 |\n| --- | --- | --- | --- | --- | --- | --- |\n| 194 | … | 109.5 | … | … | 65.5 | 167 |\n| 192 | 93.0 | … | … | 77.0 | 65.0 | 166 |\n| 190 | 92.5 | 109.0 | … | 76.5 | 64.5 | 164 |\n| 188 | 92.0 | … | 89.5 | … | 64.0 | 162 |\n| 186 | 91.5 | 108.5 | … | 76.0 | 63.5 | 161 |\n| 184 | 91.0 | … | … | 75.5 | 63.0 | 159 |\n| 182 | 90.5 | 108.0 | 89.0 | … | 62.5 | 157 |\n| 180 | 90.0 | 107.5 | … | 75.0 | 62.0 | 156 |\n| 178 | 89.0 | … | … | 74.5 | 61.5 | 154 |\n| 176 | 88.5 | 107.0 | … | … | 61.0 | 152 |\n| 174 | 88.0 | … | 88.5 | 74.0 | 60.5 | 150 |\n| 172 | 87.5 | 106.5 | … | 73.5 | 60.0 | 149 |\n| 170 | 87.0 | … | … | … | 59.5 | 147 |\n| 168 | 86.0 | 106.0 | 88.0 | 73.0 | 59.0 | 146 |\n| 166 | 85.5 | … | … | 72.5 | 58.5 | 144 |\n| 164 | 85.0 | 105.5 | … | 72.0 | 58.0 | 142 |\n| 162 | 84.0 | 105.0 | 87.5 | … | 57.5 | 141 |\n| 160 | 83.5 | … | … | 71.5 | 56.5 | 139 |\n| 158 | 83.0 | 104.5 | … | 71.0 | 56.0 | 138 |\n| 156 | 82.0 | 104.0 | 87.0 | 70.5 | 55.5 | 136 |\n| 154 | 81.5 | 103.5 | … | 70.0 | 54.5 | 135 |\n| 152 | 80.5 | 103.0 | … | … | 54.0 | 133 |\n| 150 | 80.0 | … | 86.5 | 69.5 | 53.5 | 131 |\n| 148 | 79.0 | 102.5 | … | 69.0 | 53.0 | 129 |\n| 146 | 78.0 | 102.0 | … | 68.5 | 52.5 | 128 |\n| 144 | 77.5 | 101.5 | 86.0 | 68.0 | 51.5 | 126 |\n| 142 | 77.0 | 101.0 | … | 67.5 | 51.0 | 124 |\n| 140 | 76.0 | 100.5 | 85.5 | 67.0 | 50.0 | 122 |\n| 138 | 75.0 | 100.0 | … | 66.5 | 49.0 | 121 |\n| 136 | 74.5 | 99.5 | 85.0 | 66.0 | 48.0 | 120 |\n| 134 | 73.5 | 99.0 | … | 65.5 | 47.5 | 118 |\n| 132 | 73.0 | 98.5 | 84.5 | 65.0 | 46.5 | 116 |\n| 130 | 72.0 | 98.0 | 84.0 | 64.5 | 45.5 | 114 |\n| 128 | 71.0 | 97.5 | … | 63.5 | 45.0 | 113 |\n| 126 | 70.0 | 97.0 | 83.5 | 63.0 | 44.0 | 112 |\n| 124 | 69.0 | 96.5 | … | 62.5 | 43.0 | 110 |\n| 122 | 68.0 | 96.0 | 83.0 | 62.0 | 42.0 | 108 |\n| 120 | 67.0 | 95.5 | … | 61.0 | 41.0 | 106 |\n| 118 | 66.0 | 95.0 | 82.5 | 60.5 | 40.0 | 105 |\n| 116 | 65.0 | 94.5 | 82.0 | 60.0 | 39.0 | 103 |\n| 114 | 64.0 | 94.0 | 81.5 | 59.5 | 38.0 | 101 |\n| 112 | 63.0 | 93.0 | 81.0 | 59.5 | 37.0 | 99 |\n| 110 | 62.0 | 92.6 | 80.5 | 58.0 | 35.5 | 97 |\n| 108 | 61.0 | 92.0 | … | 57.0 | 34.5 | 95 |\n| 106 | 59.5 | 91.2 | 80.0 | 56.0 | 33.0 | 94 |\n| 104 | 58.0 | 90.5 | 79.5 | 55.0 | 32.0 | 92 |\n| 102 | 57.0 | 89.8 | 79.0 | 54.5 | 30.5 | 90 |\n| 100 | 56.0 | 89.0 | 78.5 | 53.5 | 29.5 | 88 |\n\nReferences:  \nHardness Testing ASM International, Metals Park, OH 1987 ASTM Designatin E‐140‐12b  \n004 Approximate Hardness Conversion Numbers for Cartridge Brass (70% Copper 30% Zinc Alloy) (Continued)  \nVickers  \nHardness (HV)  \nRockwell Hardness Number  \nB Scale F Scale  \n1/16\" Ball 1/16\" Ball  \n100 kgf 60 kg  \n(HRB) (HRF)  \n15T Scale  \n1/16\" Ball 15 kgf  \n(HR 15T)  \nRockwell Superficial Hardness Number  \n30T Scale 45T Scale  \n1/16\" Ball 1/16\" Ball  \n30 kgf 45 kgf  \n(HR 30T) (HR 45T)  \nBrinell  \n10mm Ball 500 kgf  \n(HBS)  \n\n| 98 | 54.0 | 88.0 | 78.0 | 52.5 | 29.0 | 86 |\n| --- | --- | --- | --- | --- | --- | --- |\n| 96 | 53.0 | 87.2 | 77.5 | 51.5 | 26.0 | 85 |\n| 94 | 51.0 | 86.3 | 77.0 | 50.5 | 24.5 | 83 |\n| 92 | 49.5 | 85.4 | 76.5 | 49.0 | 23.0 | 82 |\n| 90 | 47.5 | 84.4 | 75.5 | 48.0 | 21.0 | 80 |\n| 80 | 37.5 | 78.6 | 72.0 | 41.0 | 7.5 | 72.0 |\n| 78 | 35.0 | 77.4 | 71.5 | 39.5 | 4.5 | 70.0 |\n| 76 | 32.5 | 76.0 | 70.5 | 38.0 | 1.0 | 68.0 |\n| 74 | 30.0 | 74.8 | 70.0 | 36.0 | … | 66.0 |\n| 72 | 27.5 | 73.2 | 69.0 | 34.0 | … | 64.0 |\n| 70 | 24.5 | 71.8 | 68.0 | 32.0 | … | 63.0 |\n| 68 | 21.5 | 70.0 | 67.0 | 30.0 | … | 62.0 |\n| 66 | 18.5 | 68.5 | 66.0 | 28.0 | … | 61.0 |\n| 64 | 15.5 | 66.8 | 65.0 | 25.5 | … | 59.0 |\n| 62 | 12.5 | 65.0","cbCaipRZJoMUhTxu","https://ap.wps.com/l/cbCaipRZJoMUhTxu","pdf",63776,"English","# Hardness Conversion Table\n## Hardness Scales and Indenters\n## Conversion Values (Continued)","[{\"question\":\"What materials composition does this chart cover?\",\"answer\":\"Cartridge brass with 70% copper and 30% zinc alloy.\"},{\"question\":\"Which hardness scales are included?\",\"answer\":\"Rockwell (HRB, HRF), Rockwell superficial (HR 15T, HR 30T, HR 45T), Vickers hardness (HV), and Brinell hardness (HBS).\"},{\"question\":\"How are the hardness values used in conversions?\",\"answer\":\"The table maps a hardness number on one scale to approximate corresponding values on the other listed scales across a range of hardness levels.\"}]","Approximate Hardness Conversion Numbers for Cartridge Brass (70% Copper 30% Zinc Alloy) - Table | 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