AISI 445 (S44500) Stainless Steel

Ferritic Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength480MPa

Yield Strength230MPa

Brinell Hardness160HB

Maximum Service Temperature950°C

Weight Calculator

Chemical Composition

0 to 0.020%

19 to 21%

0 to 0.6%

0 to 1.0%

0 to 0.030%

0 to 0.040%

0 to 0.012%

0.3 to 0.6%

0 to 0.8%

74.9 to 80.7%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

25 %

Fatigue Strength

160 MPa

Poisson's Ratio

0.28

Shear Modulus

78 GPa

Shear Strength

310 MPa

Tensile Strength: Ultimate (UTS)

480 MPa

Tensile Strength: Yield (Proof)

230 MPa

Hardness

Brinell Hardness

160

Rockwell B Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

480 °C

Maximum Temperature: Mechanical

950 °C

Melting Completion (Liquidus)

1440 °C

Melting Onset (Solidus)

1390 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

21 W/m-K

Thermal Diffusivity

5.6 mm 2 /s

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

16 points

Electrical

Electrical Conductivity: Equal Volume

2.6 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.0 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

98 MJ/m 3

Resilience: Unit (Modulus of Resilience)

140 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

18 points

Environmental

Base Metal Price

12 % relative

Embodied Carbon

2.6 kg CO 2 /kg material

Embodied Energy

38 MJ/kg

Embodied Energy

38 MJ/kg 16 x 10 3 BTU/lb

Embodied Water

130 L/kg

Embodied Water

130 L/kg 16 gal/lb

Registered Designations & Aliases

445AISI 445AISI 445 (S44500) Stainless SteelS44500

Standards

ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications Welding Metallurgy and Weldability of Stainless Steels, John C. Lippold and Damian J. Kotecki, 2005 Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels Corrosion of Stainless Steels, A. John Sedriks, 1996

ASTM A959 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels