SUS 301

Stainless Steel

SUS 301


  • SUS 301


  • Making rail car structural components
  • Air frame sections
  • Highway trailer components
  • Automotive wheel covers
  • Wiper blade clips and holders
  • Stove element clips
  • Screen frames
  • Toaster springs
  • Curtain walls


Stainless steel 301 is a popular austenitic stainless steel alloy known for its excellent combination of strength, corrosion resistance, and ductility. Composed primarily of iron (Fe) with chromium (Cr) and nickel (Ni) as the primary alloying elements, stainless steel 301 offers a unique set of characteristics that make it highly versatile in various industrial applications. Here's a detailed write-up on stainless steel 301:


Stainless steel 301 belongs to the austenitic family of stainless steels and typically consists of the following composition:
  • Chromium (Cr): 16-18%
  • Nickel (Ni): 6-8%
  • Iron (Fe): Balance
  • Carbon (C): ≤0.15%
  • Manganese (Mn): ≤2%
  • Silicon (Si): ≤1%
  • Phosphorus (P): ≤0.045%
  • Sulfur (S): ≤0.03%
The precise composition may vary slightly depending on specific manufacturing requirements and standards.


  1. High Strength: Stainless steel 301 exhibits high tensile strength and yield strength, making it suitable for applications requiring structural integrity and load-bearing capabilities. It can withstand significant mechanical stresses and loads without undergoing deformation or failure.
  2. Corrosion Resistance: Stainless steel 301 offers excellent corrosion resistance, particularly in mildly corrosive environments. The chromium content forms a passive oxide layer on the surface, which protects the underlying material from oxidation and corrosion, enhancing its durability and longevity.
  3. Ductility and Formability: Stainless steel 301 is highly ductile and formable, allowing it to be easily shaped, stamped, and drawn into various configurations. It is commonly used in applications requiring complex shapes or tight tolerances, such as automotive components, springs, and kitchen utensils.
  4. High Temperature Resistance: Stainless steel 301 exhibits good resistance to high temperatures, retaining its mechanical properties at elevated temperatures. This property makes it suitable for applications involving exposure to heat, such as automotive exhaust systems and heat exchangers.
  5. Magnetic Properties: Stainless steel 301 is ferromagnetic, meaning it exhibits magnetic properties. This property is advantageous in applications requiring magnetic attraction or compatibility with magnetic components, such as magnetic resonance imaging (MRI) machines and electronic devices.
  6. Weldability: Stainless steel 301 is generally weldable using standard welding techniques, such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and resistance spot welding. However, precautions should be taken to avoid sensitization and subsequent corrosion in the heat-affected zones.


  1. Automotive Industry: Stainless steel 301 is widely used in the automotive industry for various components requiring strength, corrosion resistance, and formability. It is used in automotive trim, exhaust systems, decorative trim, and structural components.
  2. Spring Manufacturing: Stainless steel 301 is commonly used in the manufacture of springs, including flat springs, coil springs, and leaf springs, due to its high strength, corrosion resistance, and springback properties.
  3. Kitchen Utensils and Appliances: Stainless steel 301 is utilized in the production of kitchen utensils, cookware, and appliances due to its corrosion resistance, aesthetic appeal, and ease of fabrication. It is often used for knives, forks, spoons, pots, pans, and appliances such as refrigerators and dishwashers.
  4. Electronic Components: Stainless steel 301 is used in electronic components and assemblies requiring magnetic properties, such as transformers, solenoids, relays, and magnetic shielding enclosures.
  5. Medical Devices: Stainless steel 301 finds applications in the medical industry for manufacturing surgical instruments, orthopedic implants, and medical devices requiring strength, corrosion resistance, and biocompatibility.
  6. Aerospace and Defense: Stainless steel 301 is utilized in aerospace and defense applications for structural components, fasteners, and hardware requiring high strength-to-weight ratio, corrosion resistance, and reliability in harsh environments.


Stainless steel 301 is a versatile and widely used alloy with a wide range of applications across diverse industries. Its exceptional combination of strength, corrosion resistance, ductility, and formability makes it indispensable for manufacturing critical components and structures requiring durability, reliability, and performance. Whether in automotive, spring manufacturing, kitchen utensils, electronics, medical devices, or aerospace applications, stainless steel 301 continues to demonstrate its value as a versatile and effective engineering material.

  • Shim / Foil
  • Spring Plate
  • C: 0.15% max
  • Mn: 2.0% max
  • Cr: 16.0-18.0%
  • Ni: 6.0-8.0%

Typical Mechanical Properties (3/4 Hard):

  • Tensile Strength: 1205 MPa min
  • Yield Strength 0.2% Proof: 930 MPa min
  • Elongation: 12% (% in 50mm)

Typical Mechanical Properties (Full Hard):

  • Tensile Strength: 1276 MPa min
  • Yield Strength 0.2% Proof: 965 MPa min
  • Elongation: 9% (% in 50mm)

Enquiry Form