ThePipingMart Blog Grades 202 Stainless Steel (UNS S20200) – Composition, Properties, and Uses

202 Stainless Steel (UNS S20200) – Composition, Properties, and Uses

202 Stainless Steel (UNS S20200) - Composition, Properties, and Uses

If you’ve ever gone shopping for stainless steel, chances are that you’ve come across grade 202. This type of stainless steel is popular in many industries due to its impressive properties and versatility. In this blog post, we’ll discuss the properties and uses of 202 stainless steel so that you can make an informed decision when looking for a material for your project.

What Forms is 202 Stainless Steel Available at Piping Mart?

  • Stainless Steel 202 Pipes
  • Stainless Steel 202 Tubing
  • Stainless Steel 202 Bolts
  • Stainless Steel 202 Channels
  • Stainless Steel 202 Pipe Fittings
  • Stainless Steel 202 Plates
  • Stainless Steel 202 Bars
  • Stainless Steel 202 Nuts
  • Stainless Steel 202 Washer

What is 202 Stainless Steel?

SS 202 is an austenitic chromium-nickel-manganese alloy with improved properties compared to 201 stainless steel. It has higher strength, higher corrosion resistance, better formability, greater toughness, and greater weldability than 201 sheets of steel. As such, it’s become increasingly popular in many industries.

202 Stainless Steel Composition

202 ss is an alloy composed of various chemical elements, such as carbon, manganese, phosphorus, sulfur, nickel, and chromium. This extraordinary mix of components creates a durable metal ideal for fabrication. 202 stainless steel exhibits good corrosion resistance characteristics while also providing a high level of formability. It also comes with a bright surface finish that is easy to maintain since it rarely needs any maintenance at all. Aside from its convenient properties, 202 stainless steel’s Low Nickel content ensures excellent weldability, making the metal suitable for many different industrial applications.

Element Content (%)
Iron, Fe 68
Chromium, Cr 17- 19
Manganese, Mn 7.50-10
Nickel, Ni 4-6
Silicon, Si ≤ 1
Nitrogen, N ≤ 0.25
Carbon, C ≤ 0.15
Phosphorous, P ≤ 0.060
Sulfur, S ≤ 0.030

202 Stainless Steel Properties

Grade 202 has excellent mechanical properties due to its high strength and ductility. It has a tensile strength of 515 MPa (min) and a yield strength of 205 MPa (min). The elongation rate is 40% (min). Additionally, it has great corrosion resistance due to its high chromium and nickel content. It also offers superior formability as well as excellent weldability and machinability.

202 Stainless Steel Physical Properties

As an incredibly versatile material, 202 stainless steel’s physical properties make it the perfect choice for numerous industrial applications. It has a higher nickel content than regular steel, making it much more resistant to corrosion. Its Inconel sheet is also superior compared to regular steel in terms of capability and durability; Inconel sheet can maintain its strength even at extreme temperatures ranging from 200-1000°C. Its ductility and malleability also allow engineers to shape and form the material into almost any desired condition while still retaining its quality. 202 stainless steel’s overall performance is often sought after due to its high endurance limits when exposed to higher temperatures or high pressure environments or may be used in manufacturing high performance parts that require mechanical flexibility and protection against corrosive materials such as sulfuric acid or hydrochloric acid.

  • Density: 7.9 g/cm3
  • Melting point: 1454°C (2650°F)
  • Thermal conductivity: 16.3 W/m·K at 20°C (68°F)
  • Electrical resistivity: 0.74 μΩ·cm at 20°C (68°F)

202 Stainless Steel Mechanical Properties

202 alloy, which has a wide range of mechanical properties. This non-magnetic metal boasts impressive tensile strength and good fatigue resistance, making it an ideal choice for various commercial and industrial uses. Its low carbon content makes it fairly corrosion resistant, although exposure to water at high temperatures can cause pitting corrosion. It also exhibits high levels of hardness and can be successfully welded with proper welding techniques. Each particular application may require its own set of parameters when using stainless steel grades 202; therefore, knowing the mechanical properties upfront is important to ensure that it meets your specific needs.

Properties Metric Imperial
Tensile strength 515 MPa 74694 psi
Yield strength 275 MPa 39900 psi
Elastic modulus 207 GPa 30000 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break 40% 40%

202 Stainless Steel Equivalent

Equivalent materials to grade 202 stainless steel are given below:

ASTM A473 ASTM A666 FED QQ-S-763 FED QQ-S-766
FED STD-66 SAE 30202 SAE J405 (30202)

202 Stainless Steel Uses

Due to its impressive properties and relatively low cost, 202 stainless steel is used in various applications. It can be found in everything from kitchen appliances to automotive parts and medical instruments. It’s often used in construction for structural components like bridges or buildings and industrial equipment such as pumps or valves. Its anti-corrosive nature makes it ideal for marine applications, pharmaceuticals, or food processing equipment where hygiene is paramount.

Corrossion Resistant

UNS S20200 stainless steel is a cost-effective alternative to the more expensive 300 series stainless steel. This steel has excellent corrosion resistance, making it an ideal choice for various applications in different industries such as cookware, automotive, construction, and architecture. AISI 202 stainless steel is rust-resistant due to its composition, which includes nickel and nitrogen additions, enhancing its corrosion resistance. The steel is easy to clean and maintain, making it popular in applications where hygiene is a priority. Its high-temperature strength and low thermal expansion coefficient make it a suitable material for high-temperature environments. Due to its excellent material properties, AISI 202 ss is an ideal choice for various industrial applications.


In conclusion, 202 stainless steel is an incredibly versatile material with impressive mechanical properties that make it suitable for various applications across many industries. Its corrosion resistance makes it ideal for marine use, while its formability makes it perfect for automotive parts or medical instruments. Whether you’re looking for something durable or lightweight, 202 stainless steel may be ideal for your project!

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