AISI 9254 Alloy Steel Chemical Composition Properties, Grades, Charts and PDF Online

AISI 9254 is a versatile alloy steel known for its excellent mechanical properties, making it suitable for various industrial applications. Its chemical composition typically includes carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, and molybdenum, contributing to its high strength, toughness, and wear resistance. This alloy steel is commonly used in manufacturing components for automotive, aerospace, and machinery industries. Grades of AISI 9254 alloy steel may vary based on specific heat treatment and processing methods. Comprehensive table, charts and PDF resources are available online, providing detailed information on its properties, grades, and applications, aiding engineers, researchers, and manufacturers in their material selection and design processes.

AISI 9254 Alloy Steel Chemical Composition And Grade Table

AISI 9254 is a medium carbon alloy steel primarily used in the manufacturing of springs and heavy-duty machinery components. Its chemical composition includes elements such as carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, and molybdenum, providing it with excellent strength and toughness properties. In terms of grades, AISI 9254 conforms to the American Iron and Steel Institute (AISI) standards and is classified under the SAE-AISI system as a grade 9254 steel. This alloy offers a balance of hardness and flexibility, making it suitable for various industrial applications requiring resilience and durability.

AISI 9254 Alloy Steel Composition Table
Elements Iron (Fe) Silicon (Si) Manganese (Mn) Chromium (Cr) Carbon (C) Sulfur (S) Phosphorus (P)
Min (%) 96.1 1.2 0.6 0.6 0.51 - -
Max (%) 97.1 1.6 0.8 0.8 0.59 0.04 0.035

Advantages and Disadvantages of AISI 9254 Alloy Steel


  • High Strength: Enhances high tensile strength to suit its purposes that may require more stress than other materials.

  • Good Toughness: Its modulus of elasticity is not affected even when the object is subjected to high stress levels.

  • Wear Resistance: Increases service life by reducing wear and tear.

  • Heat Treatable: Can be treated with heat to alter its mechanical characteristics for specific uses.


  • Corrosion Susceptibility: Susceptible to rust when exposed to the environment without proper treatment.

  • Cost: Higher cost relative to low-alloy steels due to alloying additions.

  • Machinability: Difficult to machine, requiring special tools and methods.

  • Weldability: Needs preheating and post-weld heat treatment as it tends to crack easily.

Related Topics

Here is another related topic that you may also like.