Description
Stainless Steel Grade 201/1.4372 is an austenitic chromium-nickel-manganese stainless steel developed to conserve nickel. It is a lower-cost alternative to traditional 304 stainless steel. Grade 201 offers high tensile strength and good corrosion resistance, suitable for various applications where cost savings are a priority. While it has less corrosion resistance compared to 304 stainless steel, it remains adequate for many applications.
Chemical Composition
Chromium (Cr): 16.0 - 18.0%
Nickel (Ni): 3.5 - 5.5%
Manganese (Mn): 5.5 - 7.5%
Silicon (Si): ≤ 0.75%
Nitrogen (N): ≤ 0.25%
Carbon (C): ≤ 0.15%
Phosphorus (P): ≤ 0.060%
Sulfur (S): ≤ 0.030%
Mechanical Properties
Tensile Strength: 515 - 725 MPa
Yield Strength: 275 - 520 MPa
Elongation: 35 - 60%
Hardness: 95 HRB
Thermal & Physical Properties
Density: 7.93 g/cm³
Melting Range: 1400 - 1455°C
Specific Heat (0-100°C): 500 J/kg•K
Thermal Conductivity: 16.3 W/m•K
Electrical Resistivity: 0.73 µΩ•m
Other Designations
UNS: S20100
EN: 1.4372
JIS: SUS201
Fabrication and Heat Treatment
Formability: Grade 201/1.4372 can be easily formed and welded using standard techniques. It is more challenging to cold work than 304 but offers good formability.
Weldability: Weldable by common methods, including TIG, MIG, and resistance welding. Post-weld annealing is recommended to maintain corrosion resistance.
Heat Treatment: Annealing temperature range is 1010 - 1093°C, followed by rapid cooling. Not hardenable by heat treatment.
Applications
Cookware: Pots, pans, and kitchen utensils.
Appliances: Refrigerators, dishwashers, washing machines.
Architectural: Exterior accents, trim, and roofing.
Automotive: Decorative trim and exhaust systems.
Industrial: Chemical and textile industries, particularly where high strength and wear resistance are required.
Furniture: Indoor and outdoor furniture.
Supplied Forms
Bars
Wires
Coils
Features
Corrosion Resistance: Good resistance to atmospheric corrosion and acidic environments, though less than 304 stainless steel.
High Strength: Higher tensile strength than 304 stainless steel, making it suitable for applications requiring durability and strength.
Cost-Effective: Lower nickel content makes it a more economical choice compared to 304 stainless steel.
Good Formability: Can be easily formed and welded using standard techniques.
Magnetic: Slightly magnetic in the annealed condition, becoming more magnetic when cold worked.
Temperature Tolerance: Can withstand moderately high temperatures.
