Acero para herramientas H13
Resistir el desgaste abrasivo severo de la herramienta causado por compuestos reforzados con fibra y soportar ciclos térmicos rápidos sin agrietamiento por calor requiere una aleación de trabajo en caliente de alta dureza, que el acero para herramientas AISI H13 (DIN 1.2344) proporciona. Endurecido al vacío y triple revenido a 50–54 HRC, el acero H13 de cromo-molibdeno-vanadio ofrece excepcional resistencia al choque térmico, alta resistencia a la compresión y resistencia inquebrantable al desgaste en la compuerta. En Jucheng Precision, un fabricante contratista certificado ISO 9001 e IATF 16949, nos especializamos en el mecanizado CNC de 5 ejes de cavidades de acero H13. Con una vida útil de herramienta Clase 101 que supera 1,000,000 de ciclos, nuestros moldes H13 procesan de manera confiable superpolímeros de alta temperatura y resinas rellenas abrasivas, verificados por inspección CMM Zeiss.
High-durability Acero para herramientas H13 cavity manufacturing for high-temperature and abrasive glass-filled resin injection molding. Vacuum hardened to 50–54 HRC, AISI H13 (DIN 1.2344) chromium-molybdenum hot-work tool steel resists thermal fatigue cracking and severe gate wear across 1,000,000+ production cycles.
H13 Tool Steel Thermal Shock & Abrasive Wear Profile
AISI H13 is a hot-work tool steel vacuum heat-treated to high hardness, certified to resist heat checking and abrasive fiber erosion:
| Métrica Metalúrgica | AISI H13 Steel Spec Value | High-Temperature Tooling Advantage |
|---|---|---|
| Vacuum Hardened Core Hardness | 50 – 54 HRC (Triple Tempered) | High compressive yield strength (1,650 MPa) prevents cavity wall indentation and parting line flash under intense clamping tonnage. |
| Chrom-Moly-Vanadium Alloy | AISI H13 / DIN 1.2344 / SKD61 | Vanadium carbide dispersion provides exceptional resistance to abrasive wear caused by high-velocity glass or carbon fibers. |
| Thermal Fatigue Resistance | Hot-Work Temper Resistance up to 550°C | Resists heat checking and micro-cracking caused by rapid thermal cycling during high-temperature super-polymer processing. |
H13 Steel Compatibility with Abrasive & High-Heat Resins
H13 hardened tool steel is the mandatory industry choice for abrasive filled compounds and extreme-temperature thermoplastics:
| High-Demand Resin Class | Recommended Polymer Chemistry | H13 Tool Steel Rationale |
|---|---|---|
| Heavy Fiber Compounds | Fibra de Vidrio (GF) & Fibra de Carbono (CF) Reinforced Resins | High surface hardness (52 HRC) prevents gate wash-out, runner scarring, and cavity erosion caused by 30%–50% fiber shearing. |
| High-Temperature Super-Polymers | Poliéter éter cetona (PEEK), Sulfuro de polifenileno (PPS), Polietherimida (PEI/Ultem), Polímero de Cristal Líquido (LCP) | Maintains unyielding core hardness when exposed to continuous oil-heated mold temperatures of 160°C–200°C and 400°C melt processing. |
| Long-Life Mass Production Tools | Class 101 Multi-Cavity Tooling | Guarantees 1,000,000+ shot tool lives for Moldeo por inyección de alto volumen operations under Fabricación de Moldes Personalizados frameworks. |
H13 Tool Steel Vacuum Hardening & PVD Coating Blueprint
Executing high-performance H13 tool steel mold building requires strict thermal treatment protocols and 5-axis CNC machining:
Vacuum Heat Treatment (50-54 HRC)
H13 steel blocks undergo computer-controlled vacuum quenching followed by triple tempering. This establishes a uniform 50–54 HRC core hardness, maximizing impact toughness while eliminating micro-cracking during high-speed CNC milling.
PVD Ceramic Coating for Gate Protection
For highly abrasive 50% glass-filled compounds, we apply thin PVD TiN or CrN ceramic coatings to H13 gate inserts. This increases surface hardness above 65 HRC, protecting gate orifices from high-velocity fiber wash-out.
Key Application Fields for H13 Steel Molds
- Automotive Powertrains & Under-the-Hood: Molde de inyección de producción tools for glass-filled engine intake manifolds, cylinder head covers, EV battery module brackets, and radiator end tanks.
- Aeroespacial y defensa: Molde de inyección de múltiples cavidades tools for carbon-filled PEEK drone arms, structural aircraft brackets, and high-temperature sensor housings.
- Power Tools & Heavy Industrial Equipment: High-wear Moldeo por Inyección de Insertos tools for circular saw frames, drill housings, chemical pump impellers, and gearboxes.
Propiedades
| Density (AISI H13 Steel) | 7.8 g/cm³ |
| Rango de Dureza (Endurecido al Vacío) | 50 - 54 HRC |
| Brinell Hardness Equivalent | 520 HB |
| Resistencia a la Tracción (52 HRC) | 1,650 MPa |
| Resistencia máxima a la tracción | 1,990 MPa |
| Elongación a la rotura | 9 % |
| Módulo de flexión | 210 GPa |
| Conductividad Térmica (20°C) | 24.3 W/(m·K) |
| Coeficiente de Expansión Térmica (20-100°C) | 10.9 10⁻⁶/K |
| Resistencia a la Compresión (52 HRC) | 2,100 MPa |
| Resistencia al impacto (entalla en V Charpy) | 22 J |
| Capacidad de Pulido de Superficie SPI | SPI B-1 / A-3 (Fine Diamond) - |
| Vida útil garantizada de disparos de la herramienta (endurecida clase 101) | 1,000,000+ Ciclos |
| Tamaño Máximo del Bloque de Cavidad del Molde | 1800 x 1200 mm |
| Tolerancia Mínima de Mecanizado | +/- 0.005 mm |