Stainless Steel 304 / 304L Angles & Flats

What are Stainless Steel 304 / 304L Angles & Flats?

Stainless Steel 304 and 304L are austenitic stainless steels widely used for their excellent corrosion resistance and formability. 304L is the low-carbon version of 304, which reduces the risk of carbide precipitation during welding. Angles and flats are structural components used in construction, fabrication, and engineering applications.

Key Functions:

• Provide structural support and strength
• Resist corrosion in various environments
• Ensure durability and long-term performance
• Enable easy fabrication and welding

Chemical Composition of SS 304 / 304L

Typical Composition:

SS 304:

• Chromium (Cr): 18% – 20%
• Nickel (Ni): 8% – 10.5%
• Carbon (C): ≤ 0.08%

SS 304L:

• Chromium (Cr): 18% – 20%
• Nickel (Ni): 8% – 12%
• Carbon (C): ≤ 0.03%

Low carbon content in 304L improves weldability and reduces intergranular corrosion.

Key Features of Stainless Steel 304 / 304L Angles & Flats

• Excellent corrosion resistance
• Good strength and toughness
• Superior weldability (especially 304L)
• Good formability and fabrication
• Resistance to oxidation
• Hygienic and easy to clean
• Long service life

Mechanical Properties

• Tensile Strength: ~515–720 MPa
• Yield Strength: ~205–250 MPa
• Elongation: ~40%
• Hardness: Moderate

Physical Properties

• Density: ~8.0 g/cm³
• Melting Range: ~1400–1450°C
• Modulus of Elasticity: ~193 GPa
• Thermal Conductivity: ~16 W/m·K
• Thermal Expansion: Moderate

Corrosion Resistance

SS 304 / 304L angles and flats provide excellent resistance to:

• Atmospheric corrosion
• Oxidation
• Mild acids and chemicals
• Food processing environments

However, they may not be suitable for highly chloride-rich environments.

Heat Treatment

Stainless Steel 304 / 304L is not hardenable by heat treatment.

Typical Process:

• Annealing for improved ductility

Weldability

Excellent weldability, especially for SS 304L.

Welding Methods:

• TIG (GTAW)
• MIG (GMAW)
• SMAW

Best Practices:

• Use low carbon grade (304L) for welding
• Avoid excessive heat input
• Use appropriate filler materials

Machinability

• Moderate machinability
• Requires sharp tools
• Use proper lubrication
• Maintain controlled cutting speeds

Standards & Specifications

• ASTM A276
• ASTM A240
• ASTM A479
• UNS S30400 / S30403

Available Types of Angles & Flats

We offer:

• Equal Angles
• Unequal Angles
• Flat Bars
• Polished Flats
• Custom Fabricated Sections

Sizes & Specifications

• Thickness: 3 mm to 100 mm
• Width: Up to 200 mm (flats)
• Length: Up to 6000 mm or as required

Surface Finish Options:

• Mill Finish
• Polished Finish
• Matte Finish

Applications of Stainless Steel 304 / 304L Angles & Flats

• Construction Industry : Structural frameworks
• Food Processing : Hygienic applications
• Chemical Industry : Equipment and supports
• Architecture : Decorative and structural use
• Fabrication Industry : General engineering

Quality Testing & Inspection

• Chemical composition testing
• Mechanical testing
• Dimensional inspection
• Surface quality inspection
• Positive Material Identification (PMI)

Mill Test Certificates (MTC) and third-party inspection reports are provided.

Packaging & Delivery

• Export-grade wooden packaging
• Protective wrapping
• Proper labeling and traceability
• Safe and timely global delivery

Why Choose Virami Steel Hub?

• Trusted SS 304 / 304L supplier in Mumbai
• Ready stock and fast delivery
• Competitive pricing
• Custom sizes available
• International quality standards
• Strong export network
• Dedicated customer support

Conclusion

Stainless Steel 304 / 304L Angles & Flats are an ideal choice for applications requiring excellent corrosion resistance, strength, and versatility. Their ease of fabrication and durability make them widely used across industries.

Virami Steel Hub ensures premium-quality stainless steel products that deliver reliability, efficiency, and long-term value.