431 Stainless Steel Round Bar

Stainless Steel 431 Round Bars are a specialized type of stainless steel known for their exceptional strength, durability, and corrosion resistance. These round bars are part of the martensitic stainless steel family, which is valued for its toughness and hardness. Stainless Steel 431 is a versatile material with a range of applications in various industries.

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• UNS

  S43100

• WNR

  1.4057

• ASTM / ASME

  ASTM A276 / SA276

• SHARE

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Composition and Properties: Stainless Steel 431 is a martensitic stainless steel characterized by its high chromium content (around 16-18%) and moderate nickel content (approximately 1.25-2.5%). This composition imparts excellent corrosion resistance while providing exceptional strength, hardness, and wear resistance. Additionally, it contains small amounts of other elements like sulfur and molybdenum, which further enhance its properties.

High Strength and Toughness: Stainless Steel 431 is well-known for its exceptional strength and toughness. It can withstand significant mechanical stress and is often used in applications that require high tensile and impact strength. This makes it suitable for components subjected to heavy loads and in industries like aerospace, automotive, and manufacturing where robustness is crucial.

Corrosion Resistance: While not as corrosion-resistant as austenitic stainless steels, Stainless Steel 431 still provides good resistance to atmospheric corrosion and mild chemical environments. Its ability to withstand moderate corrosion, combined with its strength, makes it a preferred choice in various applications where exposure to corrosive elements is a concern.

Heat Treatment: Stainless Steel 431 can be heat-treated to achieve different levels of hardness and toughness. This flexibility in heat treatment allows for tailoring the material's properties to specific applications, further enhancing its versatility.

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SS 431 Round Bar Specifications

Applications:Stainless Steel 431 round bars find applications in a wide range of industries, including:

1. Aerospace: Used for components like aircraft landing gear and fasteners due to its high strength and toughness.
2. Automotive: Employed in applications like drive shafts, fasteners, and bearings for its durability and resistance to wear.
3. Manufacturing: Utilized in the production of industrial equipment and machinery parts where strength and corrosion resistance are crucial.
4. Petrochemical Industry: Applied in equipment subjected to mild corrosive environments.

Machinability and Fabrication: Stainless Steel 431 is machinable, which means it can be cut, shaped, and formed with relative ease. This makes it a practical choice for manufacturers and engineers who require a material that can be processed into specific components efficiently.

Equivalent Grades Of Stainless Steel 431 Round Bar

SS 431 Round Bar Chemical Composition

Mechanical Properties of SS 431 Round Bars

Types of Stainless Steel 431 Round Bar