Lathe Machining Parts Stainless Steel SS304 SS316 SS316L for Aerospace Components Automotive Parts Medical Devices Robotics

Stainless steel 304 is one of the most widely used grades of stainless steel, known for its excellent corrosion resistance, good mechanical properties, and ease of fabrication. It belongs to the austenitic family of stainless steels, which are non-magnetic and characterized by high toughness and good weldability. Due to these attributes, 304 stainless steel is used across various industries, including food processing, chemical processing, construction, and household appliances.

The typical chemical composition of 304 stainless steel is as follows:

• Chromium (Cr): 18-20%
• Nickel (Ni): 8-10.5%
• Manganese (Mn): 2%
• Silicon (Si): 1%
• Carbon (C): 0.08% max
• Phosphorus (P): 0.045% max
• Sulfur (S): 0.03% max
• Iron (Fe): balance

The high chromium content provides the stainless steel with its resistance to corrosion, while nickel enhances its formability and weldability.

• Density: 7.93 g/cm³
• Melting Point: 1400°C (2552°F)
• Thermal Conductivity: 16 W/m*K at 100°C
• Electrical Resistivity: 0.72 µΩ*cm at 20°C
• Magnetic Properties: Non-magnetic in the annealed condition

• Tensile Strength: 520-750 MPa
• Yield Strength: 215 MPa (min)
• Elongation: 40% (in 50 mm gauge length)
• Hardness: Brinell hardness ~170 HB, Rockwell B ~90 HRB
• Modulus of Elasticity: 193 GPa

304 stainless steel maintains its strength even at high temperatures, up to around 870°C (1600°F) in intermittent service, and up to 925°C (1700°F) in continuous service.