201 Stainless Steel

UNS: S2010

products & materials

201 Stainless Steel Strip, Coil & Sheet

  • ASTM A240
  • ASTM A666

At Combined Metals Company (CMC), we strive to stay at the cutting edge of technology and practices so we can always deliver the best quality 201 stainless steel strip, coil, and sheet that you need for your business.

precision slitting

About Stainless Steel

Stainless steel cannot really be called stainless. It would be more accurate to say that it can stain less than other steels. The reason for this qualification is that stainless steel contains a minimum of 11% Chromium, which allows it to be resistant to rust.

There are various types of stainless steel, each with a set of unique qualities and composition. The chemical composition of the stainless steel determines properties such as strength, hardness, and how magnetic the material is.

You may hear people referring to stainless steel using certain terms and not be exactly clear on their meaning. For more clarification, here are the different categories.

Ferritic – Ferritic stainless steel is magnetic and has a low Carbon count.

Austenitic – this kind of stainless steel is non-magnetic and is a Chromium-Nickel steel like 201, 304, & 316.

Martensitic – this stainless steel is rarely used. It is magnetic and low amounts of Carbon with low levels of Nickel and 12 percent Chromium.


Uses of Stainless Steel

Stainless steel grade 201 is a mid-range product typically found in appliances, cookware, sinks, kitchen utensils, and food service equipment. It is also found in automotive parts and clamps as well as railroad cars, and window trim.  Its structural integrity and makeup make it ideal for uses in these industries. It tends to not be a good choice, however, for outdoor structural use, because it is susceptible to pitting and crevice corrosion from certain elements like salt water.

Industries supplied include:

  • Cooking Utensils
  • Restaurant Equipment
  • Appliances
  • Automotive Trim
  • Architectural Applications.

Nominal Composition


Physical Properties

At 70°FAt 20°C
Density0.283 lb./in³7.81 g/cm³
Modulus of Elasticity (E)28.6 x 10³ ksi 197 x 10³MPa
Coefficient of Expansion10.2 x 10⁻⁶ microinches/in.-°F (70-600°F)18.4 μm/m-°C (20-300°C)
Electrical Resistivity27 μ ohm.in68.5 μ ohm.cm
Thermal Conductivity9.4 Btu-in./ft.²hr.-°F 16.2 W/m-K
Typical room temperature mechanical properties

Typical Mechanical Properties

Typical mechanical properties are based on ASTM A240.

ConditionTensile Strength Min (UTS)0.2% YS MinElongation% in 2” Min (50.8 mm)Hardness Rockwell
Annealed (Min)75 ksi (515 MPa)38 ksi (260 MPa)40%95 HRBW (Max)

* Tempered Properties available upon request

Limitation of Liability and Disclaimer of Warranty:
  • The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
  • Applications may be discussed, however, Combined Metals Company, LLC, does not recommend or endorse any material for any particular end use or application.
  • The data included in this data sheet are typical values and may vary.
  • Combined Metals Company, LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.

In no event will Combined Metals Company, LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.

Properties of Type 201 Steel (aka T201, type 201 and grade 201)

An austenitic, non-magnetic, stainless steel 201 has the following composition.

It is Chromium (16% – 18%), and Nickel (3.5% – 5.5%). It contains higher amounts of Manganese (5.5%-7.5%) and Nitrogen, and lower amounts of Nickel than type 304 steel.

Increasing costs and the high volatility of Nickel have made Type 201 stainless steel increasingly attractive for certain stainless steel end products. In most applications, there is no loss in resistance to corrosion.

Qualities of type 201 stainless steel are:

Density (lb./ in2) @ RT:  0.283
Modulus of Elasticity in Tension (psi x 106):  28.6
Specific Heat (BTU/° F/lb.): 32 to 212°F   0.12
Thermal Conductivity (BTU/hr/ft2/ft): 212°F  9.4
Melting Point Range (°F): 2550-2650°F

Processing & Forming 201 Stainless Steel

At CMC, we use type 201 stainless steel that has been formed and drawn. Type 201 has a high work-hardening rate that often requires intermediate annealing. It can be welded, however, by all standard methods used for higher (18%) Chromium and (8%) Nickel stainless steels.

We are careful not to use stainless steel where inter-granular corrosion has impacted the head zone due to a Carbon content exceeding 0.03%. Type 201 stainless steel cannot be hardened using thermal treatment. It can be cold worked, however, to high tensile strengths.

Also note that stainless steel 201 is essentially nonmagnetic in the annealed condition and becomes magnetic when cold worked.

Combined Metals of Chicago is committed to fostering a business environment of integrity and respect for our employees, vendors, and customers. Our customers are the reason that we are in business. We are dedicated to supplying you, our customer, with the best product value and on time delivery as well as outstanding customer service. Whatever your needs for stainless steel, we will deliver the product you need, the way you need it, to help you achieve your objectives. Contact us to learn more.


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The Combined Metals Company mission is to safely produce and distribute the best value and the highest quality engineered stainless steel coil and sheet, specialty alloy strip, foil, and wire products and to deliver those products to customers around the world. Give us a call at (800) 323-0758 or fill out the form.

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