{"product_id":"zdp189-nakiri-180mm-49-layer","title":"Nakiri 180 mm — ZDP189 49-Layer San-Mai | Ultra-High Hardness Platform","description":"\u003cp data-start=\"1171\" data-end=\"1309\"\u003eThis Nakiri belongs to FireForge’s ultra-high hardness platform, constructed around a ZDP189 powder metallurgy core hardened to 65–67 HRC.\u003c\/p\u003e\n\u003cp data-start=\"1311\" data-end=\"1452\"\u003eIt is engineered for precision vegetable preparation where edge stability, wear resistance and clean vertical cutting behaviour are critical.\u003c\/p\u003e\n\u003cp data-start=\"1454\" data-end=\"1607\"\u003eThis model sits within the same structural tier as the ZDP189 Bunka, offering identical metallurgical performance in a specialised flat-profile geometry.\u003c\/p\u003e\n\u003ch3 data-start=\"1614\" data-end=\"1642\"\u003eEngineering and Materials\u003c\/h3\u003e\n\u003cp data-start=\"1644\" data-end=\"1745\"\u003eThe blade core is manufactured from Hitachi ZDP189 powder metallurgy steel, containing approximately:\u003c\/p\u003e\n\u003cul data-start=\"1747\" data-end=\"1777\"\u003e\n\u003cli data-start=\"1747\" data-end=\"1760\"\u003e\n\u003cp data-start=\"1749\" data-end=\"1760\"\u003e3% Carbon\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1761\" data-end=\"1777\"\u003e\n\u003cp data-start=\"1763\" data-end=\"1777\"\u003e20% Chromium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1779\" data-end=\"1851\"\u003eVacuum heat treatment followed by deep cryogenic stabilisation achieves:\u003c\/p\u003e\n\u003cp data-start=\"1853\" data-end=\"1887\"\u003e\u003cstrong data-start=\"1853\" data-end=\"1887\"\u003e65–67 HRC operational hardness\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1889\" data-end=\"1909\"\u003eThe core is clad in:\u003c\/p\u003e\n\u003cp data-start=\"1911\" data-end=\"1966\"\u003e\u003cstrong data-start=\"1911\" data-end=\"1966\"\u003e48 layers of SUS420J2 stainless steel (24 per side)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1968\" data-end=\"1987\"\u003eTotal construction:\u003c\/p\u003e\n\u003cp data-start=\"1989\" data-end=\"2009\"\u003e\u003cstrong data-start=\"1989\" data-end=\"2009\"\u003e49-layer san-mai\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2011\" data-end=\"2110\"\u003eThe cladding provides structural buffering, oxidation protection and multilayer surface patterning.\u003c\/p\u003e\n\u003cp data-start=\"2112\" data-end=\"2167\"\u003eSpine thickness: 2.0 mm\u003cbr data-start=\"2135\" data-end=\"2138\"\u003eEdge geometry: 15° per side\u003c\/p\u003e\n\u003ch3 data-start=\"2174\" data-end=\"2197\"\u003eStructural Behaviour\u003c\/h3\u003e\n\u003cp data-start=\"2199\" data-end=\"2242\"\u003eAt this hardness level, the blade delivers:\u003c\/p\u003e\n\u003cul data-start=\"2244\" data-end=\"2333\"\u003e\n\u003cli data-start=\"2244\" data-end=\"2271\"\u003e\n\u003cp data-start=\"2246\" data-end=\"2271\"\u003eExtended edge retention\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2272\" data-end=\"2300\"\u003e\n\u003cp data-start=\"2274\" data-end=\"2300\"\u003eHigh abrasion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2301\" data-end=\"2333\"\u003e\n\u003cp data-start=\"2303\" data-end=\"2333\"\u003eReduced sharpening frequency\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2335\" data-end=\"2447\"\u003eThe knife requires controlled technique and is not suitable for impact cutting, bone contact or frozen products.\u003c\/p\u003e\n\u003ch3 data-start=\"2454\" data-end=\"2471\"\u003eFunctional Use\u003c\/h3\u003e\n\u003cp data-start=\"2473\" data-end=\"2487\"\u003eOptimised for:\u003c\/p\u003e\n\u003cul data-start=\"2489\" data-end=\"2583\"\u003e\n\u003cli data-start=\"2489\" data-end=\"2503\"\u003e\n\u003cp data-start=\"2491\" data-end=\"2503\"\u003eVegetables\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2504\" data-end=\"2513\"\u003e\n\u003cp data-start=\"2506\" data-end=\"2513\"\u003eHerbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2514\" data-end=\"2542\"\u003e\n\u003cp data-start=\"2516\" data-end=\"2542\"\u003eClean vertical push cuts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2543\" data-end=\"2583\"\u003e\n\u003cp data-start=\"2545\" data-end=\"2583\"\u003ePrecision slicing of fibrous produce\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2585\" data-end=\"2657\"\u003eThe flat Nakiri profile maximises board contact and cutting consistency.\u003c\/p\u003e\n\u003ch3 data-start=\"2664\" data-end=\"2686\"\u003eHandle Architecture\u003c\/h3\u003e\n\u003cul data-start=\"2688\" data-end=\"2852\"\u003e\n\u003cli data-start=\"2688\" data-end=\"2721\"\u003e\n\u003cp data-start=\"2690\" data-end=\"2721\"\u003eHigh-density black resin body\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2722\" data-end=\"2764\"\u003e\n\u003cp data-start=\"2724\" data-end=\"2764\"\u003eInternal phosphor bronze reinforcement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2765\" data-end=\"2789\"\u003e\n\u003cp data-start=\"2767\" data-end=\"2789\"\u003eWhite brass ferrules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2790\" data-end=\"2821\"\u003e\n\u003cp data-start=\"2792\" data-end=\"2821\"\u003eOctagonal Japanese geometry\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2822\" data-end=\"2852\"\u003e\n\u003cp data-start=\"2824\" data-end=\"2852\"\u003eAmbidextrous configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2854\" data-end=\"2933\"\u003eThe handle structure prioritises dimensional stability and moisture resistance.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eKnife Type\u003c\/td\u003e\n\u003ctd\u003eNakiri\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eUltra-High Hardness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Steel\u003c\/td\u003e\n\u003ctd\u003eZDP189 (Powder Metallurgy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardness\u003c\/td\u003e\n\u003ctd\u003e65–67 HRC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e49-layer san-mai\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCladding\u003c\/td\u003e\n\u003ctd\u003e48 layers SUS420J2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Length\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Thickness\u003c\/td\u003e\n\u003ctd\u003e2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e333 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandle Length\u003c\/td\u003e\n\u003ctd\u003e138 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Angle\u003c\/td\u003e\n\u003ctd\u003e15° per side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e199 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandle Material\u003c\/td\u003e\n\u003ctd\u003eHigh-density resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReinforcement\u003c\/td\u003e\n\u003ctd\u003ePhosphor bronze internal core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFerrules\u003c\/td\u003e\n\u003ctd\u003eWhite brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eWooden presentation box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003cth\u003eScope\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003ctd\u003eEU food-contact compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFGB\u003c\/td\u003e\n\u003ctd\u003eGerman food-contact compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"FireForge Knives","offers":[{"title":"Default Title","offer_id":52946281431369,"sku":null,"price":623.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/2980\/0777\/files\/1_c05f6cce-1a2e-4b41-91c1-b19fa785ed38.jpg?v=1777640825","url":"https:\/\/fireforgeknives.com\/products\/zdp189-nakiri-180mm-49-layer","provider":"FireForge Knives ","version":"1.0","type":"link"}