303 Stainless Steel Square Bar

The 303 Stainless Steel Square Bar is a specialized chromium-nickel stainless steel profile enhanced with sulfur or selenium and phosphorus for superior machinability. This stainless steel square bar stands out as the most freely machinable among chromium-nickel grades, while maintaining non-magnetic properties in its annealed condition.

Key Technical Specifications:

• Tensile Strength: 90 ksi
• Yield Point: 45 ksi
• Brinell Hardness: 170
• Elasticity: 30 ksi
• Melting Point: 2550°F
• Density: 0.289 lb/in³
• Yield Tensile Strength: 34,800 psi
• Fatigue Strength: 34,800 psi
• Poisson Ratio: 0.25

Applications and Advantages of 303 Stainless Steel Square Bar

The 303 Stainless Steel Square Bar excels in applications requiring extensive machining, grinding, and polishing operations. While it offers slightly lower toughness and corrosion resistance compared to other grades, its superior machinability makes it ideal for:

Common Applications:

• Aerospace components
• Food and beverage equipment
• Precision machinery parts
• Architectural elements
• Chemical processing equipment
• Cryogenic applications

Specific Components:

• Nuts and bolts
• Aircraft fittings
• High-precision gears
• Industrial screws
• Mechanical shafts
• Electrical switchgear components
• Specialized bushings

This versatile stainless steel square bar is available in both standard and custom-cut lengths, making it suitable for various manufacturing requirements and high-volume production scenarios.