AISI 303 Stainless Steel Sheet SUS303 1.4305

303 Stainless Steel Plate/Sheet Details

Overview

303 stainless steel plate/sheet is an austenitic stainless steel that is known for its excellent machinability due to the addition of sulfur. This grade is specifically designed to provide ease of machining while retaining good mechanical and corrosion-resistant properties.

Key Characteristics

Corrosion Resistance: Offers good resistance to mildly corrosive environments, though not as high as some other austenitic grades like 304.

Machinability: The addition of sulfur significantly improves machinability, making it ideal for high-speed machining operations.

Mechanical Properties: Retains good mechanical properties, including strength and toughness, while being easier to machine.

Formability: Can be readily formed and machined into complex shapes and parts.

Chemical Composition

Carbon (C): ≤ 0.15%

Manganese (Mn): ≤ 2.00%

Silicon (Si): ≤ 1.00%

Phosphorus (P): ≤ 0.20%

Sulfur (S): 0.15-0.35%

Chromium (Cr): 17.0-19.0%

Nickel (Ni): 8.0-10.0%

Nitrogen (N): ≤ 0.10%

Common Applications

Screw and Bolt Manufacturing: Ideal for producing screws, bolts, and other fasteners due to its excellent machinability.

Precision Machined Parts: Used in the production of precision machined components in the aerospace, automotive, and electronics industries.

Valves and Fittings: Commonly employed in the manufacture of valves, fittings, and other components requiring high machinability.

General Engineering Applications: Suitable for a wide range of general engineering applications where good machinability and moderate corrosion resistance are required.

Advantages

Excellent Machinability: The presence of sulfur enhances machinability, allowing for high-speed machining with reduced tool wear.

Good Mechanical Properties: Maintains good strength and toughness despite being easier to machine.

Moderate Corrosion Resistance: Provides sufficient corrosion resistance for many applications, though not as high as some other grades.

Versatile Application: Suitable for a variety of applications, particularly those requiring high precision and ease of machining.

Summary

303 stainless steel plate/sheet is a highly machinable, versatile material that is well-suited for applications requiring ease of machining and good mechanical properties. Its unique composition, including the addition of sulfur, makes it ideal for high-speed machining operations while still offering moderate corrosion resistance.

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Common surfaces

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