Stainless Steel Metal Injection Molding Services

MIM technology enables the manufacture of complex-shaped metal parts, meeting diverse business needs. Elimold has extensive experience in stainless steel injection molding. Our production capacity covers all major stainless steel MIM grades. Contact us now for a free quote.

Advanced Stainless Steel MIM Solutions

Stainless steel is one of the most widely used materials in metal injection molding (MIM), achieving an optimal balance in mechanical properties, corrosion resistance, and design flexibility. At Elimold, we specialize in using metal injection molding (MIM) technology to produce stainless steel parts in high volumes while maintaining superior performance and an aesthetically pleasing appearance.
Stainless steel metal injection molding (MIM) provides a powerful solution for the high-precision manufacturing of complex custom stainless steel parts, making it an indispensable process in industries such as automotive, medical, and consumer electronics. Furthermore, MIM’s combination of design flexibility, material strength, and cost-effectiveness makes it the preferred choice for manufacturers committed to innovation and optimizing their production lines. Elimold possesses strong manufacturing capabilities and can provide advanced MIM solutions to help you take your production to new heights. Contact us today to learn more.

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stainless steel metal injection molding parts Mass production

Stainless Steel MIM Component Supplier

Elimold is renowned for its superior engineering and innovative solutions, providing manufacturing services for stainless steel metal injection molded (MIM) components. We utilize advanced MIM technology to produce high-quality stainless steel components that meet the stringent specifications of numerous industries. The unique features of our stainless steel MIM components lie in their exceptional strength, corrosion resistance, and the ability to achieve intricate details and complex geometries unattainable through traditional manufacturing methods.
Furthermore, our production team rigorously controls quality throughout all production processes, ensuring that every component we deliver maintains consistently reliable quality. We also employ sustainable processes and recycle materials, committed to creating a more sustainable production environment. Trusted by leading global companies, Elimold continuously raises industry standards and inspires innovation across various sectors.

Stainless Steel MIM Process

MIM Materials Powder

Mixing and Granulation of Injection Material

Stainless steel powder is mixed with a thermoplastic polymer (commonly known as a binder) under heating, so that the surface of each stainless steel particle is uniformly coated with a layer of binder. The resulting mixture is called the raw material. After cooling, the raw material is granulated into particles with a diameter of a few millimeters using a granulator, which is then used as the injection molding material for injection molding machines.
stainless steel metal injection molding shop

Metal Injection Molding

The raw material is heated and melted in the feed barrel. A reciprocating screw feeds the molten material through the gate into the furnace, and then into the mold. After cooling, the molded part is removed from the mold, resulting in a green body.
Removal of binder degreasing

Binder Removal (Degreasing)

The green body after injection molding needs to be treated using specialized degreasing equipment to remove 90% of the binder from the part. The remaining 10% of the binder plays an auxiliary role, allowing the degreased part to smoothly enter the next sintering process. The remaining binder is completely removed during the hot demolding stage of the sintering process.
Sintering process of stainless steel injection molded parts

Sintering

Sintering involves placing the degreased product on a ceramic plate and then placing it in a sintering furnace. Through precise temperature control, the furnace temperature is gradually increased to approximately 85% of the material's melting point. The relative density of the sintered product is approximately 98%, and its properties are similar to those of parts obtained after cutting bar stock. Furthermore, to achieve higher precision or improve material properties, sintered parts may undergo forming, machining, heat treatment, and electroplating processes.
Stainless steel metal injection molded parts Debinding

Comprehensive Collaboration

Elimold offers integrated in-house manufacturing capabilities, state-of-the-art facilities, and continuous communication to optimize process efficiency, control costs, shorten production cycles, and reduce risks from start to finish. With over 10 years of trusted expertise, we help you manufacture custom metal parts, including:

  • Pre-project design assistance and comprehensive post-project design for manufacturability (DfM) review
  • Key design factor optimization before mold design

Stainless Steel Alloy Material Properties

15-5 PH is a precipitation-hardened martensitic stainless steel known for its excellent corrosion resistance and strong mechanical properties.

This martensitic stainless steel offers excellent hardness, mechanical properties, and good corrosion resistance, with a carbide-former that aids in secondary forming operations.

MIM 316L, an austenitic grade, is used for applications requiring exceptional corrosion resistance.

MIM-420, a martensitic grade, combines high strength, hardness, and wear resistance with moderate corrosion resistance.

MIM 440C is a martensitic stainless steel known for its excellent strength, hardness, and wear resistance.

MIM 17-4 PH is a precipitation-hardened stainless steel that balances corrosion resistance and strength, is magnetic, and can be hardened to different levels through aging heat treatment.

MIM 17-4 PH stainless steel is used for applications requiring high strength and hardness.

MIM 17-4 H900 is a precipitation-hardened stainless steel that balances corrosion resistance and strength.

MIM 17-4 H1100, like MIM 17-4 H900, is a precipitation-hardened stainless steel that balances corrosion resistance and strength.

Stainless steel Metal Injection Molding metal Tools

Advantages of MIM Stainless Steel

Stainless steel parts manufactured using metal injection molding (MIM) technology have extremely high densities, typically ranging from 94% to 99%, offering mechanical strength, corrosion resistance, and fatigue performance comparable to forged materials. Elimold’s MIM process offers a cost advantage in high-volume production due to its high degree of automation and material utilization exceeding 95%. Furthermore, these parts exhibit a fine surface finish of approximately 1 μm Ra. In terms of dimensional accuracy, our MIM process achieves tolerances of ±0.3% to 0.5%, with some features reaching ±0.05 mm after post-processing. Its excellent formability allows for wall thicknesses as low as 0.3 to 0.5 mm, enabling the fabrication of ultra-thin-wall structures and micron-level features.

Comparison with Other Materials

Choosing the right material for molded parts depends on performance requirements, environmental factors, and cost constraints. Below is a comparison of stainless steel MIM with common alternatives:

Low Alloy Steel

Low alloy steels offer higher strength and hardness after heat treatment, but generally have poorer corrosion resistance. If your application involves a humid or chemical environment, corrosion-resistant metal injection molding (MIM) steel is often a better choice.

Tool Steel

Tool steels are designed to achieve the highest hardness and wear resistance, but often lack corrosion resistance. Stainless steel alloy metal injection molding (MIM) technology provides a balanced solution for parts that require both strength and resistance to rust or oxidation.

Biocompatible Implant Alloys

Due to their good biocompatibility and corrosion resistance, MIM 316L stainless steel variants are commonly used in medical devices. For critical implants, materials such as titanium may be preferred, but for many non-implantable parts, stainless steel remains a viable and cost-effective option.

Plastic Injection Molding

While injection molding offers advantages such as design flexibility and low part cost, its mechanical properties and temperature resistance cannot match those of metal injection molded (MIM) stainless steel. For load-bearing, wear-resistant, or high-temperature applications, the metal particles in MIM parts provide a superior alternative.

Ready to start your stainless steel MIM project?

Our team of engineers will answer your questions and show you how innovative stainless steel metal injection molding technology can revolutionize your next project and its future development.

stainless steel metal injection molding work shop

Engineering Solutions for Stainless Steel MIM Projects

Elimold offers customized manufacturing solutions based on our expertise in stainless steel metal injection molding (MIM). Our experienced team works closely with clients to develop bespoke stainless steel products, ensuring optimal performance. We emphasize consultative services, collaborating closely with clients from initial concept to final production, paying attention to every detail.
Our commitment to customized services sets us apart in the industry, enabling us to deliver innovative solutions that enhance our clients’ competitive advantage. Our tailored designs are suitable for industries with extremely high precision requirements, such as automotive, aerospace, and medical devices. Furthermore, we offer rapid prototyping services to test and validate designs before full-scale production. With our stainless steel metal injection molding (MIM) technology, we are able to produce high-quality stainless steel parts at highly competitive prices, thereby reducing the total project cost.

In-House Stainless Steel Injection Molding Facility

Elimold’s in-house facility spans 221,000 square feet and includes production facilities and two large warehouses for storing raw materials, finished products, and space for customer rental. Multiple loading and unloading platforms facilitate efficient picking and shipping. The facility can meet the production needs of small, medium, and large batches of MIM parts, integrating various processes from MIM design, mold design, mold manufacturing, debinding, sintering, and surface treatment, all the way to final MIM part inspection and assembly. The facility boasts over 80 advanced 110-ton metal injection molding machines with injection volumes of 1.9 oz, 2.7 oz, and 3.7 oz, suitable for single-cavity and multi-cavity molds, meeting the production needs of numerous industries. Furthermore, our facility is capable of 24/7 operation and utilizes state-of-the-art integrated real-time manufacturing ERP software, significantly improving production efficiency and turnover rates, optimizing data acquisition, troubleshooting, overall organization, and customer communication. Our precision MIM parts combine cost-effectiveness with superior quality. Our experienced technical team has overcome various limitations of metal injection molding processes, enabling us to produce MIM parts with excellent mechanical properties and diverse shapes to meet your various needs.

Elimolds internal metal injection mold storage warehouse

In-house Custom Mold Manufacturing Capability

Elimold’s core competency lies in our ability to design and manufacture molds in-house. We believe this is crucial for efficiently and cost-effectively delivering high-quality, high-precision metal injection molded (MIM) products. Imagine seamless communication between the designer and mold-making teams—accelerating product development and bringing products to market faster. Direct quality control ensures molds perfectly meet your specifications and minimizes defects. In-house mold manufacturing streamlines the entire process, saving costs. This is a strategic advantage for any responsible metal injection molding company. It also gives us a significant edge in responding quickly to the urgent needs of our customers and their markets. Our facilities and skilled craftsmen enable us to fully maintain our molds and produce custom molds for up to 300 new products monthly. Furthermore, we continuously invest in the latest equipment and technologies to improve production speed and precision.

What are the advantages of choosing Elimold?

Choosing Elimold means partnering with a leading company with extensive experience in engineered materials manufacturing. Our innovative and cost-effective engineering solutions are designed to meet diverse customer needs while maximizing value.
We offer comprehensive design and engineering support, ensuring every aspect of your project is handled with professional care. Quality is always our top priority, and we adhere to stringent standards to deliver products that exceed expectations. We offer five full-density options to meet your specific needs, no matter how complex your project. Contact us today to experience the excellence of Elimold! Let us turn your ideas into reality!

stainless steel metal injection molding parts
Quality inspection of stainless steel injection molded parts

Quality Control and Assurance

At Elimold, quality is at the heart of our manufacturing process. From raw material selection to final product inspection, we employ comprehensive quality control techniques to ensure our stainless steel MIM components meet the highest industry standards. Our advanced testing methods, including mechanical strength testing, surface finish assessment, and dimensional accuracy checks, ensure product precision and durability. Compliance with ISO and ASTM standards guarantees product reliability across various industries.

Applications of Stainless Steel MIM Parts

Medical

Medical

Consumer Products

Consumer Products

Robotics

Robotics

Industrial

Industrial

Electronics Industry

Electronics Industry

Semiconductors

Semiconductors

Automotive

Automotive

Aerospace

Aerospace

Marine

Marine

New Energy

New Energy

Automation 380

Automation

Motorcycle 380

Motorcycle

Working With Us Is Simple

Our experts will get involved early, asking the right questions, identifying challenges, and guiding you through every stage of the process. From initial concept to full-scale production, we work closely with you, utilizing the right metal injection molding (MIM) technologies, prototyping tools, and production strategies to quickly and efficiently meet your design, performance, and cost goals.

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