Stainless Steel 304 (SS 304) – Austenitic Stainless Steel for General Purpose Use SS 304 is the most widely used austenitic stainless steel, known for its excellent corrosion resistance, formability, and hygienic properties. It contains a balanced composition of 18% chromium and 8% nickel, which gives it superior oxidation resistance in a wide range of environments—from food processing and chemical industries to architectural and structural applications. Its excellent weldability, ease of fabrication, and non-magnetic nature (in annealed condition) make SS 304 a go-to choice for both industrial and commercial applications that demand high strength and corrosion protection without compromising workability. Key Features: Superior corrosion resistance in atmospheric and chemical exposures Excellent formability, drawing, and machining characteristics Good mechanical strength and toughness even at cryogenic temperatures Non-magnetic in annealed condition Easy to weld with or without filler metals Typical Chemical Composition: Element Content (%) Chromium 18.0 – 20.0 Nickel 8.0 – 10.5 Carbon ≤ 0.08 Manganese ≤ 2.00 Silicon ≤ 1.00 Phosphorus ≤ 0.045 Sulfur ≤ 0.030 Mechanical Properties: Property SS 304 Yield Strength ≥ 205 MPa Tensile Strength ≥ 515 MPa Elongation ≥ 40% Hardness (Brinell) ≤ 201 HB Operating Temp. Up to 870°C Common Applications: Kitchen equipment and utensils Chemical containers and storage tanks Architectural panels and decorative finishes Food processing and pharmaceutical machinery Heat exchangers, pipelines, and marine fittings Summary: SS 304 is a versatile, cost-effective, and corrosion-resistant stainless steel ideal for a wide range of indoor and outdoor uses. Its combination of aesthetic appeal, hygiene, and strength makes it a preferred material across industries worldwide.