{"id":3063,"date":"2026-08-13T12:43:27","date_gmt":"2026-08-13T04:43:27","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=3063"},"modified":"2026-08-13T15:38:27","modified_gmt":"2026-08-13T07:38:27","slug":"718-mold-steel","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/es\/es\/materials\/mold-steel\/718-mold-steel\/","title":{"rendered":"718 Mold Steel"},"content":{"rendered":"
\n

<\/p>\n

\n

High-precision 718 Mold Steel<\/strong> cavity manufacturing for large-scale appliance housings and automotive interior panels. Pre-hardened with nickel alloy addition to 32\u201338 HRC, 718H (DIN 1.2738) steel provides exceptional deep-section hardness uniformity and zero heat-treatment distortion across 500,000+ production cycles.<\/p>\n<\/section>\n

<\/p>\n

\n

718H Mold Steel Metallurgical & Large Block Profile<\/h2>\n

718H is an upgraded nickel-chromium-molybdenum pre-hardened steel, engineered to maintain consistent hardness across thick mold core blocks:<\/p>\n\n\n\n\n\n\n\n
Metallurgical Parameter<\/th>\n718 Steel Spec Metric<\/th>\nLarge Tooling Advantage<\/th>\n<\/tr>\n<\/thead>\n
Nickel-Alloy Pre-Hardening<\/td>\n32 – 38 HRC (340 HB)<\/td>\nPre-hardened at higher hardness than P20, offering superior resistance to core deformation under high injection pressures.<\/td>\n<\/tr>\n
Deep Section Uniformity<\/td>\nDIN 1.2738 \/ AISI P20+Ni<\/td>\nNickel additions prevent soft centers in thick steel blocks (up to 400mm depth), ensuring uniform 5-axis CNC cutter wear.<\/td>\n<\/tr>\n
Texturing & Polishability<\/td>\nSPI B-1 & Mold-Tech Etching Compatible<\/td>\nTakes uniform acid-etched textures for automotive interior trims and high-gloss paper polishing without grain distortion.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

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

718H pre-hardened steel is the industry benchmark for medium-to-large non-corrosive plastic components in Moldeo por Inyecci\u00f3n de Pl\u00e1stico<\/strong>:<\/p>\n\n\n\n\n\n\n
Polymer Resin Class<\/th>\nRecommended Base Material<\/th>\n718 Tooling Strategy<\/th>\n<\/tr>\n<\/thead>\n
Large Household & Packaging<\/td>\nPolypropylene (PP)<\/strong>, Polyethylene (PE)<\/strong>, ABS<\/strong>, Polystyrne (PS)<\/strong><\/td>\nDelivers 500,000+ shot tool life for large logistics crates, television back covers, and washing machine tubs.<\/td>\n<\/tr>\n
Automotive Interior & Bumper Trims<\/td>\nPolycarbonate (PC)<\/strong>, Polyamide (PA\/Nylon)<\/strong>, PC\/ABS Alloys<\/td>\nSupports intricate acid-etched grain textures for automotive door trims, glove boxes, and dashboard bezels.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

\n

718 Mold Steel Tooling Engineering & Pre-Hardened Blueprint<\/h2>\n

Molding with pre-hardened 718H steel balances toolmaking speed against cavity accuracy through four engineering advantages:<\/p>\n

\n
\n

Zero Heat-Treatment Distortion (35 HRC)<\/p>\n

Because 718H steel is pre-hardened at the steel mill, no post-machining quench heat treatment is needed. This eliminates thermal stress distortion across large core plates, guaranteeing true-to-CAD dimensions on large appliance molds during Fabricaci\u00f3n de Moldes Personalizados<\/strong><\/a>.<\/p>\n<\/div>\n

\n

Deep-Section Uniform Hardness (Nickel Addition)<\/p>\n

Unlike standard P20, 1% nickel addition in 718H prevents core softening in massive steel blocks. Jucheng\u2019s 5-axis CNC machining centers cut deep cavity walls with uniform tool wear and \u00b10.005 mm accuracy.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Key Application Fields for 718 Steel Injection Molds<\/h2>\n
    \n
  • Automotive Exterior & Interiors (IATF 16949):<\/strong> Large Production Injection Mold<\/strong> tools for bumper fascia trims, door panels, glove boxes, and dashboard bezels.<\/li>\n
  • Large Consumer Appliances:<\/strong> Washing machine tubs, refrigerator door liners, television back enclosures, and air conditioner housings.<\/li>\n
  • Industrial Logistics & Commodities:<\/strong> Heavy-duty stackable crates, recycling bins, agricultural trays, and Moldeo por Inyecci\u00f3n de Dos Componentes<\/strong> or Moldeo por Inyecci\u00f3n de Insertos<\/strong> hardware.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    High-precision 718 Mold Steel cavity manufacturing for large-scale appliance housings and automotive interior panels. Pre-hardened with nickel alloy addition to 32\u201338 HRC, 718H (DIN 1.2738) steel provides exceptional deep-section hardness uniformity and zero heat-treatment distortion across 500,000+ production cycles. 718H Mold Steel Metallurgical & Large Block Profile 718H is an upgraded nickel-chromium-molybdenum pre-hardened steel, engineered […]<\/p>\n","protected":false},"featured_media":3064,"template":"","meta":[],"class_list":["post-3063","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/es\/wp-json\/wp\/v2\/material_model\/3063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/es\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/es\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/es\/wp-json\/wp\/v2\/media\/3064"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/es\/wp-json\/wp\/v2\/media?parent=3063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}