{"product_id":"high-chrome-grinding-balls","title":"High Chromium Cast Grinding Balls","description":"\u003ch2\u003eHigh Chromium Cast Grinding Balls\u003c\/h2\u003e\n\n\u003cp\u003eChromium alloy white cast iron grinding media, \u003cstrong\u003e17 mm to 125 mm\n(5\/8 in to 5 in)\u003c\/strong\u003e. The chromium carbides give wear life that carbon steel\ncannot reach in abrasive ore, which is where the higher first cost is repaid.\u003c\/p\u003e\n\n\u003ch3\u003eHardness\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eBalls 60 mm (2-1\/2 in) and above\u003c\/th\u003e\n\u003ctd\u003eRockwell C 60\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBalls below 60 mm\u003c\/th\u003e\n\u003ctd\u003eRockwell C 63\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eBrinell equivalent\u003c\/th\u003e\n\u003ctd\u003eapprox. 650\/700\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eThrough section\u003c\/th\u003e\n\u003ctd\u003eHardness is uniform throughout the mass, not a case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eAbove roughly 650 BHN only the Rockwell C test is valid — the Brinell indenter\nball deforms against metal this hard and reads false. A Brinell figure quoted at\nthis hardness is an estimate converted from Rockwell, not a measurement.\u003c\/p\u003e\n\n\u003ch3\u003eChromium content\u003c\/h3\u003e\n\u003cp\u003eThe common grade carries \u003cstrong\u003e12% chromium\u003c\/strong\u003e; higher chromium grades\nare available where the duty is more abrasive or more corrosive. Material sits in\nthe \u003ca href=\"https:\/\/www.astm.org\/Standards\/A532.htm\" target=\"_blank\" rel=\"noopener\"\u003eASTM A532\u003c\/a\u003e\nabrasion-resistant cast iron family (12–28% Cr), equivalent to GB\/T 17445.\u003c\/p\u003e\n\n\u003ch3\u003eSizes, weights and charge data\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003cth\u003eWeight each\u003c\/th\u003e\n\u003cth\u003ePieces per tonne\u003c\/th\u003e\n\u003cth\u003eSurface area each\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e17 mm (5\/8 in)\u003c\/td\u003e\n\u003ctd\u003e20 g (0.043 lb)\u003c\/td\u003e\n\u003ctd\u003e51,149\u003c\/td\u003e\n\u003ctd\u003e9.1 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e20 mm (3\/4 in)\u003c\/td\u003e\n\u003ctd\u003e32 g (0.07 lb)\u003c\/td\u003e\n\u003ctd\u003e31,412\u003c\/td\u003e\n\u003ctd\u003e12.6 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e23 mm (7\/8 in)\u003c\/td\u003e\n\u003ctd\u003e48 g (0.107 lb)\u003c\/td\u003e\n\u003ctd\u003e20,654\u003c\/td\u003e\n\u003ctd\u003e16.6 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e25 mm (1 in)\u003c\/td\u003e\n\u003ctd\u003e62 g (0.137 lb)\u003c\/td\u003e\n\u003ctd\u003e16,083\u003c\/td\u003e\n\u003ctd\u003e19.6 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e30 mm (1-1\/4 in)\u003c\/td\u003e\n\u003ctd\u003e107 g (0.237 lb)\u003c\/td\u003e\n\u003ctd\u003e9,307\u003c\/td\u003e\n\u003ctd\u003e28.3 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e40 mm (1-1\/2 in)\u003c\/td\u003e\n\u003ctd\u003e255 g (0.562 lb)\u003c\/td\u003e\n\u003ctd\u003e3,927\u003c\/td\u003e\n\u003ctd\u003e50.3 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e50 mm (2 in)\u003c\/td\u003e\n\u003ctd\u003e497 g (1.097 lb)\u003c\/td\u003e\n\u003ctd\u003e2,010\u003c\/td\u003e\n\u003ctd\u003e78.5 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e60 mm (2-1\/2 in)\u003c\/td\u003e\n\u003ctd\u003e860 g (1.89 lb)\u003c\/td\u003e\n\u003ctd\u003e1,163\u003c\/td\u003e\n\u003ctd\u003e113.1 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e70 mm (2-3\/4 in)\u003c\/td\u003e\n\u003ctd\u003e1.36 kg (3.01 lb)\u003c\/td\u003e\n\u003ctd\u003e733\u003c\/td\u003e\n\u003ctd\u003e153.9 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e80 mm (3-1\/8 in)\u003c\/td\u003e\n\u003ctd\u003e2.04 kg (4.49 lb)\u003c\/td\u003e\n\u003ctd\u003e491\u003c\/td\u003e\n\u003ctd\u003e201.1 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e90 mm (3-1\/2 in)\u003c\/td\u003e\n\u003ctd\u003e2.9 kg (6.4 lb)\u003c\/td\u003e\n\u003ctd\u003e345\u003c\/td\u003e\n\u003ctd\u003e254.5 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e100 mm (4 in)\u003c\/td\u003e\n\u003ctd\u003e3.98 kg (8.77 lb)\u003c\/td\u003e\n\u003ctd\u003e251\u003c\/td\u003e\n\u003ctd\u003e314.2 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e110 mm (4-1\/2 in)\u003c\/td\u003e\n\u003ctd\u003e5.3 kg (11.68 lb)\u003c\/td\u003e\n\u003ctd\u003e189\u003c\/td\u003e\n\u003ctd\u003e380.1 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e125 mm (5 in)\u003c\/td\u003e\n\u003ctd\u003e7.77 kg (17.13 lb)\u003c\/td\u003e\n\u003ctd\u003e129\u003c\/td\u003e\n\u003ctd\u003e490.9 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eFigures are calculated from nominal dimensions at the stated density and agree with the published mill tables to within rounding. They size a mill charge; they are not a certificate. Hardness is verified per ISO 6508 (Rockwell C) or ISO 6506 (Brinell) on request.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSpecial compositions\u003c\/h3\u003e\n\u003cp\u003eAustenitic media can be supplied where the charge must stay non-magnetic or\nresist corrosion as well as wear:\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eAustenitic manganese\u003c\/th\u003e\n\u003ctd\u003e12\/14% Mn and 16\/18% Mn\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eChromium-nickel\u003c\/th\u003e\n\u003ctd\u003e26% Cr \/ 9% Ni  ·  25% Cr \/ 12% Ni  ·  25% Cr \/ 20% Ni  ·  15% Cr \/ 35% Ni\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eTell us the duty and we will confirm the grade against your specification.\u003c\/p\u003e","brand":"Dibblee","offers":[{"title":"17 mm (5\/8 in)","offer_id":50199311712533,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"20 mm (3\/4 in)","offer_id":50199311745301,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"23 mm (7\/8 in)","offer_id":50199311778069,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"25 mm (1 in)","offer_id":50199311810837,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"30 mm (1-1\/4 in)","offer_id":50199311843605,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"40 mm (1-1\/2 in)","offer_id":50199311876373,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"50 mm (2 in)","offer_id":50199311909141,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"60 mm (2-1\/2 in)","offer_id":50199311941909,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"70 mm (2-3\/4 in)","offer_id":50199311974677,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"80 mm (3-1\/8 in)","offer_id":50199312007445,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"90 mm (3-1\/2 in)","offer_id":50199312040213,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"100 mm (4 in)","offer_id":50199312072981,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"110 mm (4-1\/2 in)","offer_id":50199312105749,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"125 mm (5 in)","offer_id":50199312138517,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/4160\/7445\/files\/balls-cylpebs-high-chrome.jpg?v=1790104031","url":"https:\/\/www.kentershackle.com\/products\/high-chrome-grinding-balls","provider":"Kenter Shackles","version":"1.0","type":"link"}