441 Stainless Steel Alloy

UNS: S44100
EN DIN: 1.4509

441 Stainless Steel Strip, Coil & Sheet

  • ASTM A240

Our wide capabilities give us a unique ability to supply all of your 441 stainless steel strip, coil, and sheet needs.

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441 Stainless Steel Alloy Description:

Type 441 is a nominal 18% chromium-bearing ferritic stainless steel stabilized with columbium. The alloy provides good high-temperature strength that exceeds that of type 409 and 439 stainless steels. Type 441 offers good corrosion resistance in many exhaust gas environments, equivalent to that of 439 and 18 Cr-Cb stainless steels.


441 Stainless Steel Alloy Uses & Applications:

Applications include:

  • Exhaust systems
  • Automotive manifolds
  • Tubes

Industries supplied include:

Nominal Composition


Physical Properties

At 70°FAt 20°C
Density0.278 lb./in³7.7 g/cm³
Modulus of Elasticity (E)29 x 10³ ksi200 GPa
Coefficient of Expansion5.7 µin/in-°F (32-212°F)10.2 μm/m-°C (0-100°C)
Electrical Resistivity23.1 μ ohm.in58.7 μ ohm.cm
Thermal Conductivity173 Btu-in./ft.²hr.-°F25 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
Annealed70 ksi (MPa)45 ksi (MPa)30%80 HRBW
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.

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