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Master Guide to Commercial and Industrial Heat Treating

Commercial and industrial heat treating is essential in various industries, including medical, automotive, and electronics. It aims to improve metal’s strength, hardness, ductility, and other properties.

S.M. Engineering & Heat Treating offers top-quality heat treating repair services for the medical, automotive, and electronics industries. We provide pick-up, delivery, and reliable shipping for furnace and oven parts. Moreover, our experts perform various processes, such as bright annealing, hardening, quenching, and stress relieving on all metals, delivering exceptional results.

Understanding Heat Treating

Heat treating alters the physical and mechanical properties of metal and metal alloys. This procedure involves three stages:

Stage 1: Heating

During this stage, the metal is heated to a specific temperature, which is determined by the type of metal and the desired outcome. Several methods for heating the metal include direct firing, electrical resistance, and induction heating. The choice of method depends on the type of metal, the size and shape of the metal, and the desired properties.

Stage 2: Holding

In holding, the metal is held at the desired temperature for a specific period. The holding time depends on the type of metal, the selected properties, and the size and shape of the metal. Holding the metal at the desired temperature allows for the formation of desired microstructures within the metal.

Stage 3: Cooling

The cooling process entails letting the metal return to room temperature at a specific rate. The cooling rate is determined by the type of metal and the desired properties. For example, slow cooling rates are used for metals that require a softer, more flexible structure. On the other hand, fast cooling rates are used for metals that require a harder, more brittle form.

Heat Treating Processes

At S.M. Engineering & Heat Treating, we provide certified custom heat treating open repair services for various industries, including the medical, automotive, and electronics fields. In addition, our expert team offers a range of services using the following heat treating procedures:

  • Bright Annealing

    To achieve a shiny, smooth surface on metals used in the medical, electronics, and aerospace industries, bright annealing is the choice of heat treatment. During this process, metals are heated to a specific temperature in a controlled atmosphere to reduce oxidation and create a visually appealing finish.

  • Hardening

    Hardening is utilized when high-wear components such as cutting tools and gears must be manufactured. This process involves heating metals to a certain temperature and then rapidly cooling them to increase their hardness, making them resistant to wear and tear.

  • Quenching

    This heat treating process is often used to manufacture automotive parts, bearings, and other high-stress components. Here, metals are rapidly cooled to enhance their hardness and strength, making them more durable and able to withstand heavy loads.

  • Stress Relieving

    Stress relieving is often necessary when manufacturing welding fixtures, machine tools, and other precision components. This process involves heating metals to a particular temperature and cooling them slowly to relieve internal stresses. By doing so, the risk of warping or cracking during use is reduced, and the lifespan of the components is increased.

Benefits of Commercial and Industrial Heat Treating

Heat treating is used in many industries, including aerospace, automotive, construction, medical, and oil and gas. It is also used to manufacture tools and dies. Here are some of the key advantages of commercial and industrial heat treating:

Improves Wear and Corrosion Resistance

Heat treating can greatly enhance a metal’s wear resistance by hardening and quenching. This is particularly important in automotive industries, where components must withstand constant stress and friction.

Certain heat treating processes, such as bright annealing, can also improve the corrosion resistance of metals. This is essential in marine and oil and gas industries, where components are exposed to harsh environments.

Enhances Machinability

By relieving internal stresses, metal components are less prone to distortion during machining, resulting in more precise and efficient production processes.

Better Formability

Heat treating can improve the ductility of certain metals, making them easier to shape and mold into complex geometries. This benefits industries where precision components must be manufactured to exact specifications.


By adjusting the process’s temperature, time, and cooling rate, heat treating can be tailored to meet specific application performance requirements.

Choosing the Right Commercial and Industrial Heat Treating Manufacturers

Choosing the right commercial and industrial heat treating manufacturer can make all the difference in the quality of your end product. The wrong manufacturer can lead to costly delays, poor-quality products, and safety issues.

Here’s what to look for when selecting commercial and industrial heat treating manufacturers:

A manufacturer with a proven track record of success and expertise in your specific industry can provide valuable insights and solutions. Thus, look for one that has been in business for several years and has a proven track record of delivering high-quality results. Check online reviews, testimonials, and ratings from previous customers to understand their reputation.

Different heat treating manufacturers offer additional capabilities and services. Before choosing a manufacturer, ensure they can provide the specific type of heat treating process you need for your material. Also, check if they offer additional machining, testing, and inspection services to ensure a complete and reliable solution.

The quality and effectiveness of the heat treating process largely depends on the equipment and facilities used by the manufacturer. Therefore, look for a manufacturer that invests in modern, well-maintained equipment and has a clean and organized facility. This indicates they take their work seriously and can produce consistent and reliable results.

A reputable heat treating manufacturer should have a robust quality control system in place to ensure the highest standards of quality and consistency. In addition, check if the manufacturer has certifications like ISO 9001, demonstrating their commitment to quality and compliance with industry standards.

While quality should be the top priority when choosing a heat treating manufacturer, cost and lead time are also important considerations. Compare quotes from multiple manufacturers and choose one that offers a fair and competitive price without compromising quality. Also, check their lead times to ensure they can meet your project deadlines.

Consider the location and accessibility of the heat treating company, especially if you need to transport your material to their facility.

S.M. Engineering & Heat Treating: Your Trusted Heat Treating Experts

In need top-notch commercial and industrial heat treating services? You are in the right place!  S.M. Engineering & Heat Treating’s team of certified professionals has the expertise and experience to handle all your heat treating needs, regardless of industry or application. From bright annealing to stress relieving, we provide a range of processes to ensure your metals meet the desired specifications and performance standards.

Moreover, we understand the importance of timely and efficient service. Therefore, we offer local pick-up and delivery and trusted shipping options for heat treat furnace and oven parts. In addition, our commitment to quality means you can trust that your metals are in good hands with us.

Don’t settle for subpar heat treating services; choose S.M. Engineering & Heat Treating for reliable, high-quality solutions.

Contact us today to learn more and get started on your next project.

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