{"id":6264,"date":"2025-02-13T15:20:38","date_gmt":"2025-02-13T15:20:38","guid":{"rendered":"https:\/\/acerosyservicios.com\/steel-for-plastic-injection-molds\/"},"modified":"2026-06-13T20:32:17","modified_gmt":"2026-06-13T20:32:17","slug":"steel-for-plastic-injection-molds-buy-sale","status":"publish","type":"page","link":"https:\/\/acerosyservicios.com\/en\/steel-for-plastic-injection-molds-buy-sale\/","title":{"rendered":"Steel for Plastic Injection Molds"},"content":{"rendered":"\t\t
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Steel for Plastic Injection Molds
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Introduction to Steel Selection for Plastic Injection Molds<\/h3>\n

In plastic injection mold manufacturing, choosing the right steel is a decisive factor that influences the quality of the final product, the efficiency of the production process, and the durability of the mold. The steels used in these molds must withstand high levels of stress, resist constant wear, and in many cases offer superior polishability to ensure flawless surface finishes.<\/p>\n

The purpose of this guide is to provide an in-depth and detailed insight into the types of steels available, their specific properties, the treatments required to optimize their performance, and how a company with experience in steel treatment, such as Aceros y Servicios, can add significant value to your project.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Types of Steel Used in Injection Molds: A Detailed Analysis<\/strong><\/h4>\n
1.2311 Steel: The Industry Standard<\/h5>\n

1.2311 steel is one of the most widely used steels in the manufacture of plastic injection molds due to its balanced combination of mechanical properties and ease of machining. This steel is delivered pre-hardened, which eliminates the need for additional heat treatments, making it a popular choice for medium-sized molds.<\/p>\n

Properties and Advantages of 1.2311 Steel:<\/h5>\n

Hardness: 1.2311 has a typical hardness of 28-32 HRC, which gives it wear resistance and good polishability.
\nMachining: It offers excellent machinability, allowing the creation of complex shapes with a smooth surface finish.
\nApplications: Ideal for molds that do not require additional treatments, being common in the production of housings for household appliances and automotive parts.
\n1.2344 Steel: Heat Resistance and Versatility<\/p>\n

1.2344 is a chromium-molybdenum tool steel, known for its exceptional resistance to heat and thermal shock. It is especially useful in applications where molds must operate at elevated temperatures while maintaining excellent dimensional stability.<\/p>\n

Properties and Advantages of 1.2344 Steel:<\/h5>\n

Heat Resistance: It can withstand high temperatures without losing its mechanical properties, making it suitable for high-temperature injection processes.
\nAbrasion Resistance: 1.2344 is highly resistant to wear, extending mold life.
\nApplications: Common in molds that require rapid cooling or are subject to rapid temperature changes, such as in the production of plastic containers or high-performance components.
\n1.2083 Steel with Polishing Capability.<\/p>\n

1.2083 steel is a martensitic stainless steel that stands out for its ability to achieve high levels of polishing, making it the ideal choice for molds that require a highly reflective and blemish-free surface finish.<\/p>\n

Properties and Advantages of 1.2083 Steel:<\/h5>\n

Corrosion Resistance: Its chromium content gives it excellent corrosion resistance, essential for molds in humid environments or where corrosive plastics are used.
\nPolishing Capacity: It can be polished to obtain very smooth surfaces, ideal for the manufacture of optical components and precision parts.
\nApplications: Used in the production of lenses, electronic components and molds that require a visually perfect finish.
\nToolox\u00ae.<\/p>\n

Ideal as steel for injection molds<\/h5>\n

The high temperature properties of Toolox\u00ae make it the perfect steel for die casting and forging. The yield strength, wear resistance and impact resistance remain higher than conventional hot work steels, even at elevated temperatures. When heated up to 590 \u00b0C, Toolox\u00ae retains its original hardness when cooled. Using Toolox\u00ae as an injection moulding steel saves a lot of manufacturing time thanks to its high machinability. Moulding plastic parts with a high content of abrasive fillers is no problem thanks to the high hardness of the steel without heat treatment. If necessary, the surface hardness can easily be increased by nitriding, laser hardening or other surface treatment. The high purity also makes Toolox\u00ae perfect for polishing to a high gloss.<\/p>\n

Ideal as die casting and forging steel<\/h5>\n

The high temperature properties of Toolox\u00ae make it the perfect steel for die casting and forging. The yield strength, wear resistance and impact resistance remain higher than conventional hot work steels, even at elevated temperatures. When heated to 590\u00b0C, Toolox\u00ae retains its original hardness when cooled.<\/p>\n

Perfect as a stamping and punching steel<\/h5>\n

When creating stamping and punching dies with even the most complex shapes, Toolox\u00ae is the perfect steel. No deformation occurs after machining large parts as there are no internal stresses. The steel is extremely homogeneous with high cleanliness and uniform hardness throughout the material, keeping stamping tools and sharp edges in perfect condition for high volume production.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Key Properties of Mold Steels: Understanding Their Impact<\/strong><\/h3>\n

Wear Resistance: Extending Mold Life<\/strong><\/h4>\n

Wear resistance is one of the most critical properties of mold steels. Molds subjected to repeated injection cycles and high production volumes must withstand constant friction without degrading quickly. Using steels such as 1.2344, with high wear resistance, ensures that the mold maintains its functionality and precision throughout its life.<\/p>\n

Hardness: Maintaining Structural Integrity<\/strong><\/h4>\n

The hardness of steel determines its ability to resist deformation under pressure. Pre-hardened steels such as 1.2311 provide sufficient hardness for most applications, while harder steels such as 1.2344 may be necessary for applications involving higher mechanical stresses.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Polishability: Crucial for High-Quality Finishes<\/strong><\/h4>\n

The polishability of steel is essential for molds that must produce smooth, defect-free surfaces. 1.2083 steel is especially valued in this regard, as it allows for achieving a mirror finish, necessary for high-precision aesthetic and functional components.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Dimensional Stability: Precision in Every Cycle<\/strong><\/h4>\n

Dimensional stability refers to the ability of steel to maintain its dimensions and tolerances during the injection process, especially under high temperature and pressure conditions. 1.2344 steel is highly valued for its ability to maintain this stability, which is crucial in the production of components that require high precision.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Thermal and Mechanical Treatments: Optimizing Mold Performance<\/h3>\r\nThe performance of a plastic injection mold not only depends on the type of steel selected, but also on the thermal and mechanical treatments applied to improve its properties.\r\n

Tempering and Tempering: Increasing Hardness and Durability<\/h4>\r\nTempering is a heat treatment that hardens steel, improving its resistance to wear and fatigue. Tempering, on the other hand, relieves internal stresses generated during tempering, increasing the steel’s toughness. These treatments are essential for steels such as 1.2344, which are used in high-temperature applications.\r\n

Shot Blasting: Improving Surface and Fatigue Resistance<\/h4>\r\nShot blasting is a process in which small metal or ceramic particles are shot against the surface of steel to improve its fatigue resistance and remove surface imperfections. This treatment is particularly useful for steels that will be subjected to repeated loading cycles.\r\n

Precision Machining: Transforming Steel into Functional Parts<\/h4>\r\nMachining is the process of shaping steel into useful mold components. Aceros y Servicios has high-precision machinery that allows for complex and detailed cuts, ensuring that each piece meets the exact specifications required for the plastic injection process.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The Experience of Steel and Services in Steel Treatment: An Added Value<\/h3>\n

Aceros y Servicios is a company that has been in the market for decades, offering specialized services in the treatment of steel, with a focus on quality and customization. Their experience includes:<\/p>\n