What is hardenedsteelused for

In carburizing, the surface hardness of the steel is increased by adding carbon to the component. The component that requires hardening is heated and exposed to a carbon environment. The carbon penetrates the surface of the metal and strengthens it.

Hardenedsteelvs stainlesssteel

Metal case hardening – often referred to as surface hardening – is a heat treatment process where the chemical properties of the steel’s surface are changed and hardened by adding a thin layer of carbon or nitrogen-enriched surface to the parts. Hardening the steel’s surface helps to extend the life of the steel by making it more resistant to abrasion and direct impacts.

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This process must be carried out in a controlled environment to prevent oxygen from being present in the process which changes the outcome of the metal hardening. Partial vacuum processes shorten the time involved and provide a few economic advantages of case hardening.

Types of hardenedsteel

The steel underneath the hardened layer (inner core) remains minimally changed by the heat treatment process. This inner core is more ductile, or ‘softer,’ than the hardened surface layer. Not only does case hardening improve the wear resistance of the steel’s surface, but it also dramatically improves the strength of the steel by helping it attain its maximum durability.

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Hardenedsteelmaterial list

Following this process, there may additional manufacturing costs in the form of a grinding process to remove the thin white layer which forms on the surface. However, there are typically no other heat processes which follow nitriding, which means less deformation to the object.

Types ofhardeningprocess

Many processes exist to change the properties of steel tools. These include tempering steel, oil quenching, precipitation hardening, and more. When it comes to durability, metal case hardening is one of the most efficient methods.

In the aerospace industry, where companies must adhere to stringent accreditations and certifications, everything from cylinders, bearings, valves, engine blades, and landing gear requires case hardening. In fact, SST is the only commercially-approved heat treatment company in the United States for certain flight-critical components.

Metal case hardening has multiple industrial applications. For instance, in the automotive and rail industry, gears, bearings, driveshafts, pistons, engines, and gearboxes, are all typically case hardened. Not only does case hardening protect the mating surfaces (teeth) of these components during contact, but it also provides protection against sudden shock loads while helping to extend fatigue life.

Whether you want to harden small steel tools or need to improve the durability of large, complex machinery, SST has the experience to get the job done. Contact us at (586) 293-5355 for more information or to request a quote.

How to hardensteelwith oil

In this process, the material is heated and then exposed to atomic nitrogen, which can penetrate the steel or iron. Atomic nitrogen reacts with the metal to increase its hardness and resistance. This process offers a high degree of hardness, but cannot be used with all of the alloy steels.

Low-alloy and low-carbon steel react best during the case hardening process. High-carbon steels can be case hardened, but special steps need to be adhered to in order to ensure the hardening process doesn’t affect the inner core.

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