Stainless steel Grade 441 (UNS S44100)

Topics Covered

Introduction
Chemical Composition
Mechanical Properties
Other Designations
Applications

Introduction

Stainless steel grade 441 is a ferritic stainless steel containing niobium that provides the steel good oxidation and corrosion resistance. This steel provides good high-temperature strength in exhaust gas environments, and has good for deep drawing, good ductility, good weldability, and good brightness. It polishes well. The 441 flat rolled stainless steel possesses magnetic quality in all conditions.

The following datasheet provides an overview of stainless steel grade 441.

Chemical Composition

The chemical composition of grade 441 stainless steel is outlined in the following table.

Element Content (%)
Chromium, Cr 17.50-18.50
Titanium, Ti + Niobium, Nb 0.60 max
Carbon, C 0.02 max
Iron, Fe Remainder

Mechanical Properties

The mechanical properties of grade 441 stainless steel are displayed in the following table.

Properties Metric Imperial
Tensile strength (annealed) 489 MPa 70900 psi
Yield strength (@temperature 871 °C/ 1600 °F ) 2.90 MPa 421 psi
Modulus of elasticity 220 GPa 31908 ksi
Elongation at break (in 2", annealed) 35.90% 35.90%
Hardness, Rockwell B (annealed) 80 80

Other Designations

Equivalent material to grade 441 stainless steel is 1.4509.

Applications

Grade 441 stainless steel is applied in catering equipment and automotive-exhaust system components.

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