{"id":3065,"date":"2026-08-13T15:20:09","date_gmt":"2026-08-13T07:20:09","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=3065"},"modified":"2026-08-13T15:38:15","modified_gmt":"2026-08-13T07:38:15","slug":"nak80-mold-steel","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/fr\/fr\/materials\/mold-steel\/nak80-mold-steel\/","title":{"rendered":"NAK80 Mold Steel"},"content":{"rendered":"
\n

<\/p>\n

\n

High-precision NAK80 Mold Steel<\/strong> cavity manufacturing for high-aesthetic electronic enclosures and transparent plastic parts. Age-hardened at the steel mill to 37\u201343 HRC, Daido NAK80 (Cu-Al-Ni alloyed) steel delivers exceptional machinability, zero heat-treatment distortion, and pinhole-free EDM spark erosion surfaces across 500,000+ production cycles.<\/p>\n<\/section>\n

<\/p>\n

\n

NAK80 Mold Steel Age-Hardening & Polishability Profile<\/h2>\n

NAK80 is a unique precipitation-hardened tool steel engineered by Daido Steel, designed to provide high core hardness without quench distortion:<\/p>\n\n\n\n\n\n\n\n
Metallurgical Attribute<\/th>\nNAK80 Steel Spec Metric<\/th>\nHigh-Aesthetic Tooling Advantage<\/th>\n<\/tr>\n<\/thead>\n
Pre-Hardened Age Hardening<\/td>\n37 – 43 HRC (Pre-Hardened)<\/td>\nPre-hardened via intermetallic precipitation, eliminating post-machining heat-treatment distortion while delivering higher wear resistance than P20.<\/td>\n<\/tr>\n
Uniform Cu-Al-Ni Microstructure<\/td>\nPrecipitation Hardened Alloy<\/td>\nHomogeneous fine-grain structure guarantees uniform spark erosion during EDM machining, leaving zero micro-pinhole defects.<\/td>\n<\/tr>\n
Superior EDM & Polishability<\/td>\nUp to SPI A-2 \/ VDI 18 Finish<\/td>\nAccepts diamond mirror polishing and fine EDM textures easily, highly recommended for piano-black and high-gloss consumer electronics.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

NAK80 Steel Polymer Compatibility & Application Matrix<\/h2>\n

NAK80 pre-hardened steel is the gold standard for high-aesthetic, high-gloss plastic housings in Moulage par injection plastique<\/strong>:<\/p>\n\n\n\n\n\n\n\n
High-Aesthetic Resin Class<\/th>\nCompatible Polymer Chemistry<\/th>\nNAK80 Tooling Strategy<\/th>\n<\/tr>\n<\/thead>\n
High-Gloss Consumer Electronics<\/td>\nABS<\/strong>, Polycarbonate (PC)<\/strong>, PC\/ABS Alloys<\/td>\nTakes SPI Polishing<\/strong> A-2 diamond polish directly, producing piano-black cosmetic surfaces for gaming controllers and smart-home hubs.<\/td>\n<\/tr>\n
Transparent & Optical Packaging<\/td>\nPMMA(Acrylic)<\/strong>, Transparent PC, SAN<\/td>\nHigh-purity core structure enables high light transmission on cosmetic jar lids, indicator lenses, and transparent containers.<\/td>\n<\/tr>\n
Complex Textured Enclosures<\/td>\nPolyamide (PA\/Nylon)<\/strong>, Modified Thermoplastics<\/td>\nReacts uniformly to EDM spark erosion, providing clean Texture & EDM Finish<\/strong> (VDI 12 to 24) on complex internal ribs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

NAK80 Mold Steel Tooling Engineering & EDM Blueprint<\/h2>\n

Executing precision NAK80 steel Fabrication de moules sur mesure<\/strong><\/a> requires careful CNC cutting feeds, EDM copper electrode profiling, and hand polishing:<\/p>\n

\n
\n

Pre-Hardened 40 HRC Core<\/p>\n

Pre-hardened via precipitation age-hardening to 37\u201343 HRC. This eliminates post-machining quench distortion, allowing Jucheng to cut true-to-CAD cavity dimensions directly on 5-axis CNCs.<\/p>\n<\/div>\n

\n

Pinhole-Free EDM Sparking<\/p>\n

NAK80\u2019s uniform copper-aluminum-nickel alloy structure responds predictably to sinker EDM spark erosion. It produces clean, even VDI matte textures without microscopic pinholes or carbon buildup.<\/p>\n<\/div>\n

\n

Laser Weldability & Maintenance<\/p>\n

NAK80 features excellent weldability. In the event of engineering changes (ECOs) or parting line wear, our toolmakers deposit matching NAK80 wire using micro-laser welders without causing local heat distortion.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Key Application Fields for NAK80 Steel Molds<\/h2>\n
    \n
  • High-Aesthetic Consumer Electronics:<\/strong> High-gloss piano-black gaming console shells, remote controls, smart home hubs, printer covers, and cosmetic enclosures.<\/li>\n
  • Automotive Interior Controls (IATF 16949):<\/strong> High-gloss Production Injection Mold<\/strong> tools for ambient light bezels, air conditioning louvers, steering wheel buttons, and Moulage par injection bi-mati\u00e8re<\/strong> key fobs.<\/li>\n
  • Medical Device Housings (ISO 13485 Certified):<\/strong> High-finish Cleanroom Injection Molding<\/strong> tools for medical monitor bezels, handheld diagnostic casings, and pharmaceutical containers.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    High-precision NAK80 Mold Steel cavity manufacturing for high-aesthetic electronic enclosures and transparent plastic parts. Age-hardened at the steel mill to 37\u201343 HRC, Daido NAK80 (Cu-Al-Ni alloyed) steel delivers exceptional machinability, zero heat-treatment distortion, and pinhole-free EDM spark erosion surfaces across 500,000+ production cycles. NAK80 Mold Steel Age-Hardening & Polishability Profile NAK80 is a unique precipitation-hardened […]<\/p>\n","protected":false},"featured_media":3066,"template":"","meta":[],"class_list":["post-3065","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model\/3065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media\/3066"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media?parent=3065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}