AISI 446 (S44600) Stainless Steel

Ferritic Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength570MPa

Yield Strength300MPa

Brinell Hardness190HB

Maximum Service Temperature1180°C

Weight Calculator

Chemical Composition

0 to 0.2%

23 to 27%

0 to 0.75%

0 to 1.5%

0 to 1.0%

0 to 0.25%

0 to 0.040%

0 to 0.030%

69.2 to 77%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

23 %

Fatigue Strength

200 MPa

Poisson's Ratio

0.27

Reduction in Area

50 %

Shear Modulus

79 GPa

Shear Strength

360 MPa

Tensile Strength: Ultimate (UTS)

570 MPa

Tensile Strength: Yield (Proof)

300 MPa

Hardness

Brinell Hardness

190

Rockwell B Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

290 J/g

Maximum Temperature: Corrosion

440 °C

Maximum Temperature: Mechanical

1180 °C

Melting Completion (Liquidus)

1510 °C

Melting Onset (Solidus)

1430 °C

Specific Heat Capacity

490 J/kg-K

Thermal Conductivity

17 W/m-K

Thermal Diffusivity

4.6 mm 2 /s

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

19 points

Electrical

Electrical Conductivity: Equal Volume

1.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.3 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m 3

Resilience: Unit (Modulus of Resilience)

230 kJ/m 3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

26 points

Strength to Weight: Axial

21 points

Strength to Weight: Bending

20 points

Environmental

Base Metal Price

12 % relative

Embodied Carbon

2.4 kg CO 2 /kg material

Embodied Energy

35 MJ/kg

Embodied Energy

35 MJ/kg 15 x 10 3 BTU/lb

Embodied Water

150 L/kg

Embodied Water

150 L/kg 18 gal/lb

Physical Other

Calomel Potential

-230 mV

Registered Designations & Aliases

446AISI 446AISI 446 (S44600) Stainless SteelS44600

Standards

ASTM A176 ASTM A176: Standard Specification for Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip

ASTM A176 ASTM A176: Standard Specification for Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip EN 10095: Heat resisting steels and nickel alloys ASTM A473: Standard Specification for Stainless Steel Forgings ASTM A276: Standard Specification for Stainless Steel Bars and Shapes Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 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 A240 ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A276 ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

ASTM A473 ASTM A473: Standard Specification for Stainless Steel Forgings

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

EN 10095 EN 10095: Heat resisting steels and nickel alloys