{"id":3061,"date":"2026-08-13T14:17:08","date_gmt":"2026-08-13T06:17:08","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=3061"},"modified":"2026-08-13T15:37:53","modified_gmt":"2026-08-13T07:37:53","slug":"s136-mold-steel","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/de\/de\/materials\/mold-steel\/s136-mold-steel\/","title":{"rendered":"S136 Mold Steel"},"content":{"rendered":"
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High-purity S136 Mold Steel<\/strong> cavity manufacturing for high-transparency medical, optical, and high-gloss plastic components. Featuring 13.6% chromium content and Electroslag Remelting (ESR) refinement, hardened S136 stainless steel takes an SPI A-1 diamond mirror polish while providing exceptional resistance to corrosive resin outgassing and cooling line rust.<\/p>\n<\/section>\n

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S136 Mold Steel Metallurgical & Mirror Polish Profile<\/h2>\n

ESR-refined S136 stainless steel is vacuum heat-treated to 48\u201352 HRC, certified to deliver outstanding corrosion protection and optical polishability:<\/p>\n\n\n\n\n\n\n\n
Metallurgical Attribute<\/th>\nS136 Steel Spec Metric<\/th>\nOptical & Medical Tooling Advantage<\/th>\n<\/tr>\n<\/thead>\n
Chromium Corrosion Protection<\/td>\n13.6% Chromium (Cr) Alloy Content<\/td>\nPrevents cavity pitting caused by corrosive acidic outgassing from flame retardants and water line condensation rust.<\/td>\n<\/tr>\n
ESR Inclusion-Free Purity<\/td>\nElectroslag Remelted (ESR) Steel<\/td>\nRemoves non-metallic slag inclusions, enabling diamond paste hand polishers to reach a flawless SPI A-1 mirror finish.<\/td>\n<\/tr>\n
Core Hardness & Wear<\/td>\n48 – 52 HRC (Vacuum Hardened)<\/td>\nResists parting line wear and flash formation across 1,000,000+ continuous high-speed injection production cycles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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S136 Steel Compatibility with Optical & Corrosive Resins<\/h2>\n

S136 stainless steel is the preferred tool steel for high-transparency optics, medical disposables, and corrosive resins during Spritzguss<\/strong><\/a>:<\/p>\n\n\n\n\n\n\n\n
Specialty Resin Class<\/th>\nCompatible Polymer Chemistry<\/th>\nS136 Tool Steel Rationale<\/th>\n<\/tr>\n<\/thead>\n
Optical Clear & Lenses<\/td>\nPolycarbonate (PC)<\/strong>, PMMA(Acrylic)<\/strong>, COC, COP<\/td>\nTakes an SPI A-1 diamond mirror polish without surface pitting, yielding 92% light transmittance without haze.<\/td>\n<\/tr>\n
Medical & Cleanroom Disposables<\/td>\nBiocompatible & Medical Grade Resin<\/strong>, Medical PEEK<\/td>\nPrevents mold rust inside humid Cleanroom Injection Molding<\/strong> bays, ensuring zero particulate contamination.<\/td>\n<\/tr>\n
Acidic Outgassing Resins<\/td>\nFlame Retardant (FR)<\/strong> Alloys, PVC (Polyvinyl Chloride)<\/strong><\/td>\nHigh-chromium matrix prevents chemical pitting caused by hydrochloric acid or brominated outgassing during high-temp runs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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S136 Mold Steel Vacuum Hardening & SPI A-1 Mirror Polish Blueprint<\/h2>\n

Executing precision S136 stainless steel Kundenspezifischer Formenbau<\/strong><\/a> requires strict vacuum heat-treatment and 5-axis CNC machining:<\/p>\n

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ESR Inclusion-Free Purity<\/p>\n

Electroslag Remelting (ESR) eliminates non-metallic slag inclusions. This ultra-pure steel structure allows master polishers to achieve SPI A-1 diamond mirror clarity without micro-scratches.<\/p>\n<\/div>\n

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Vacuum Heat-Treat (52 HRC)<\/p>\n

Computer-controlled vacuum hardening followed by triple tempering achieves uniform 48\u201352 HRC core hardness, eliminating internal residual stress and preventing tool warpage.<\/p>\n<\/div>\n

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Rust-Proof Cooling Channels<\/p>\n

Because S136 contains 13.6% chromium, 3D conformal cooling lines drilled through cavity blocks resist rust and mineral scaling, maintaining high thermal transfer across 1M+ cycles.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for S136 Stainless Steel Molds<\/h2>\n
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  • Medical & Healthcare (ISO 13485 Certified):<\/strong> S136-Edelstahl Multi-Cavity Injection Mold<\/strong> tools for hemodialyzers, syringes, diagnostic cartridges, and surgical tools.<\/li>\n
  • Optical & Automotive Lighting (IATF 16949 Certified):<\/strong> High-gloss Production Injection Mold<\/strong> tools for LED ambient light guides, camera lenses, and automotive headlamps.<\/li>\n
  • High-End Packaging & Electronics:<\/strong> High-cavitation Hot Runner Mold<\/strong> closures, luxury cosmetic containers, and high-voltage circuit breaker housings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    High-purity S136 Mold Steel cavity manufacturing for high-transparency medical, optical, and high-gloss plastic components. Featuring 13.6% chromium content and Electroslag Remelting (ESR) refinement, hardened S136 stainless steel takes an SPI A-1 diamond mirror polish while providing exceptional resistance to corrosive resin outgassing and cooling line rust. S136 Mold Steel Metallurgical & Mirror Polish Profile ESR-refined […]<\/p>\n","protected":false},"featured_media":3062,"template":"","meta":[],"class_list":["post-3061","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/material_model\/3061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media\/3062"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media?parent=3061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}