SCM415 ALLOY Steel | 15CrMo | 1.7262

3. Common Industrial Uses of SCM415 Alloy Steel

Drawing from established industry standards and the inherent properties of carburizing steels like SCM415, its primary application areas are outlined below. These highlight where the material’s unique attributes deliver tangible performance benefits.

3.1 Machine Tubes

SCM415 is explicitly designated for “Alloy Steel Tubes for Machine Purposes” under the Japanese Industrial Standard JIS G 3441, specifically noted as grade “S CM 415 TK”. This makes it a preferred material for:

• Structural tubing within various types of machinery.
• Mechanical components that require robust, high-strength tubular forms.

These particular SCM415 alloy steel applications directly leverage the material’s inherent strength, which is further enhanced by the superior surface properties achieved after carburizing.

3.2 Machinery and Automotive Components

The well-balanced combination of a hardened surface and a resilient core makes SCM415, much like other low-carbon carburizing alloy steels (such as those in the SAE 8620 and 4320 series), highly suitable for a wide array of machinery and automotive parts. These applications typically demand:

• Exceptional resistance to various forms of wear and abrasion.
• Good contact fatigue strength to endure repetitive loading.
• Sufficient core toughness to withstand operational stresses and potential impacts.

Specific components where the distinct properties of SCM415 are particularly valuable include:

• Gears: The carburized surface provides excellent wear resistance on gear teeth, extending service life.
• Shafts: Combining surface hardness with core strength is essential for reliable power transmission and load-bearing.
• Pins and Axles: These parts benefit from the material’s durability and resistance to fatigue failure.

These SCM415 alloy steel applications are critical in ensuring the longevity, reliability, and safe operation of industrial equipment and vehicles.

3.3 Bearing Components

The fundamental characteristics of carburized SCM415, as a Cr-Ni-Mo alloy steel, make it a strong candidate for various bearing components. The ability to achieve high surface hardness, good wear resistance, and notable rolling contact fatigue resistance is key for such parts. While some highly specialized bearing applications may utilize other specific high-alloy grades (like SAE 4320 for high-duty railway axle-bearings), potential SCM415 alloy steel applications in this sector include:

• Standard-duty bearings where a hard, wear-resistant surface is essential.
• Parts requiring a durable surface combined with a tough, shock-absorbing core.

3.4 General Purpose Forgings

SCM415 alloy steel is also effectively utilized for a variety of forgings that require carburizing to achieve specific, engineered surface hardness and core toughness. These general SCM415 alloy steel applications often align with broader specifications, such as ASTM A837/A 837M, which cover alloy steel forgings intended for carburizing. This allows for the manufacture of custom-shaped parts, precisely tailored to meet demanding mechanical requirements in diverse applications.

3.5 Summary of SCM415 Application Advantages

To better illustrate why SCM415 is consistently chosen for these demanding roles, the following table summarizes its key attributes when properly carburized:

The successful and effective utilization of SCM415 alloy steel applications is heavily reliant on correct heat treatment protocols, particularly the carburizing process, to fully unlock its designed performance potential. For your specific component requirements, detailed technical specifications, or inquiries regarding SCM415 supply, our experienced team at Aobo Steel is readily available to provide expert assistance.