{"product_id":"d2-tool-steel-round-bars","title":"D2 - Tool Steel Round Bars","description":"\u003cp\u003e\u003cmeta http-equiv=\"CONTENT-TYPE\" content=\"text\/html; charset=utf-8\"\u003e \u003cmeta name=\"GENERATOR\" content=\"OpenOffice 4.1.9  (Win32)\"\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin-bottom: 0cm;\"\u003eD2 - Tool Steel Round Bars\u003cbr\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"175\" data-end=\"497\"\u003eD2 is a high-carbon, high-chromium tool steel known for its exceptional wear resistance and ability to hold a fine edge for extended periods. Supplied in its annealed state with a textured hot-rolled surface, it is relatively easy to cut, drill, and machine before hardening. Thickness may vary slightly between batches.\u003c\/p\u003e\n\u003cp data-start=\"499\" data-end=\"955\"\u003eUnlike stainless steels, D2 is considered a \u003cstrong data-start=\"543\" data-end=\"561\"\u003esemi-stainless\u003c\/strong\u003e steel due to its high chromium content (around 12%). While not fully stainless, it does offer moderate corrosion resistance compared to simple carbon steels, making it a popular choice for hard-use knives, dies, and cutting tools. Its high carbide volume gives it excellent wear resistance and edge retention, though this also makes it more challenging to sharpen compared to simpler alloys.\u003c\/p\u003e\n\u003cp data-start=\"499\" data-end=\"955\"\u003eMade by CSCJ\u003c\/p\u003e\n\u003ch3 data-start=\"962\" data-end=\"979\"\u003eComposition\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"982\" data-end=\"1002\"\u003e\u003cstrong data-start=\"982\" data-end=\"1000\"\u003eCarbon – 1.50%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1005\" data-end=\"1028\"\u003e\u003cstrong data-start=\"1005\" data-end=\"1026\"\u003eChromium – 12.00%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1031\" data-end=\"1053\"\u003e\u003cstrong data-start=\"1031\" data-end=\"1051\"\u003eVanadium – 0.90%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1056\" data-end=\"1080\"\u003e\u003cstrong data-start=\"1056\" data-end=\"1078\"\u003eMolybdenum – 0.80%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1083\" data-end=\"1106\"\u003e\u003cstrong data-start=\"1083\" data-end=\"1104\"\u003eManganese – 0.30%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1109\" data-end=\"1130\"\u003e\u003cstrong data-start=\"1109\" data-end=\"1128\"\u003eSilicon – 0.30%\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1133\" data-end=\"1153\"\u003e\u003cstrong data-start=\"1133\" data-end=\"1151\"\u003eIron – Balance\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1160\" data-end=\"1193\"\u003ePerformance Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1197\" data-end=\"1473\"\u003e\n\u003cstrong data-start=\"1197\" data-end=\"1217\"\u003eToughness – 5\/10\u003c\/strong\u003e\u003cbr data-start=\"1217\" data-end=\"1220\"\u003eD2 has good toughness for a high-carbon tool steel, though it is not as tough as lower-alloy steels like 5160 or 80CrV2. Care should be taken in applications where heavy impact is expected, as it can be prone to chipping if pushed beyond its limits.\u003c\/li\u003e\n\u003cli data-start=\"1477\" data-end=\"1717\"\u003e\n\u003cstrong data-start=\"1477\" data-end=\"1502\"\u003eEdge Retention – 8\/10\u003c\/strong\u003e\u003cbr data-start=\"1502\" data-end=\"1505\"\u003eThanks to its high carbon and chromium carbide content, D2 offers excellent wear resistance and edge retention, making it one of the most popular choices for knives where long-lasting sharpness is a priority.\u003c\/li\u003e\n\u003cli data-start=\"1721\" data-end=\"1979\"\u003e\n\u003cstrong data-start=\"1721\" data-end=\"1752\"\u003eCorrosion Resistance – 6\/10\u003c\/strong\u003e\u003cbr data-start=\"1752\" data-end=\"1755\"\u003eWith 12% chromium, D2 offers more corrosion resistance than simple carbon steels like 1095 or O1, but it is not stainless. Proper care, including oiling and keeping blades dry, is recommended to prevent spotting or rust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1986\" data-end=\"2018\"\u003eRecommended Heat Treatment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: medium;\"\u003e\u003cspan face=\"Tahoma, sans-serif\" style=\"font-family: Tahoma, sans-serif;\"\u003e\u003cspan size=\"3\"\u003eCoat blade in an anti scale compound or seal in double crimped \u003ca rel=\"noopener\" title=\"321 Stainless steel foil\" href=\"https:\/\/ausmakersupplies.com.au\/products\/premium-321-low-temp-stainless-heat-treating-foil-tool-wrap\" target=\"_blank\"\u003e321 \u003c\/a\u003eor \u003ca rel=\"noopener\" title=\"309 Stainless steel foil\" href=\"https:\/\/ausmakersupplies.com.au\/products\/premium-309-stainless-heat-treating-foil-tool-wrap\" target=\"_blank\"\u003e309 \u003c\/a\u003egrade stainless steel tool wrap\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2100\" data-end=\"2186\"\u003e\n\u003cstrong data-start=\"2100\" data-end=\"2115\"\u003eAustenitise\u003c\/strong\u003e – Heat to \u003cstrong data-start=\"2126\" data-end=\"2157\"\u003e1020–1040 °C (1870–1905 °F)\u003c\/strong\u003e and hold for 15–30 minutes\u003c\/li\u003e\n\u003cli data-start=\"2189\" data-end=\"2257\"\u003e\n\u003cstrong data-start=\"2189\" data-end=\"2199\"\u003eQuench\u003c\/strong\u003e – \u003ca href=\"https:\/\/ausmakersupplies.com.au\/products\/houghtons-k-fast-quench-oil\"\u003eK Quench Oil\u003c\/a\u003e or between \u003cspan style=\"font-size: medium;\"\u003e\u003cspan face=\"Tahoma, sans-serif\" style=\"font-family: Tahoma, sans-serif;\"\u003e\u003cspan size=\"3\"\u003e\u003ca rel=\"noopener\" title=\"aluminium quench plates\" href=\"https:\/\/ausmakersupplies.com.au\/products\/aluminium-quench-plate-set\" target=\"_blank\"\u003ealuminium plates\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e with forced air\u003c\/li\u003e\n\u003cli data-start=\"2260\" data-end=\"2449\"\u003e\n\u003cstrong data-start=\"2260\" data-end=\"2310\"\u003eCryogenic Treatment (optional but recommended)\u003c\/strong\u003e – For maximum hardness and reduced retained austenite, immerse in liquid nitrogen or dry ice slurry for at least 1 hour before tempering\u003c\/li\u003e\n\u003cli data-start=\"2452\" data-end=\"2560\"\u003e\n\u003cstrong data-start=\"2452\" data-end=\"2462\"\u003eTemper\u003c\/strong\u003e – 2 hours, twice, at \u003cstrong data-start=\"2484\" data-end=\"2512\"\u003e150–540 °C (300–1000 °F)\u003c\/strong\u003e depending on desired hardness and application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2567\" data-end=\"2622\"\u003eApproximate As-Quenched Hardness Before Tempering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"2625\" data-end=\"2675\"\u003e1040 °C with cryogenic treatment – \u003cstrong data-start=\"2660\" data-end=\"2673\"\u003e62–63 HRC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2678\" data-end=\"2716\"\u003e1040 °C without cryo – \u003cstrong data-start=\"2701\" data-end=\"2714\"\u003e60–61 HRC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2723\" data-end=\"2757\"\u003eRecommended Working Hardness\u003c\/h3\u003e\n\u003cp data-start=\"2758\" data-end=\"2841\"\u003e\u003cstrong data-start=\"2758\" data-end=\"2771\"\u003e58–62 HRC\u003c\/strong\u003e, depending on the intended balance of edge retention and toughness.\u003c\/p\u003e","brand":"SANWA","offers":[{"title":"30mm RND x 100mm","offer_id":41301232910400,"sku":"D2-RND-30-100","price":25.0,"currency_code":"AUD","in_stock":true},{"title":"30mm RND x 800mm","offer_id":41301232943168,"sku":"D2-RND-30-800","price":179.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/7661\/0368\/files\/D2steelbar.png?v=1783656539","url":"https:\/\/ausmakersupplies.com.au\/products\/d2-tool-steel-round-bars","provider":"Aus Maker Supplies","version":"1.0","type":"link"}