AISI 439 (S43035) Stainless Steel

Ferritic Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength490MPa

Yield Strength250MPa

Brinell Hardness160HB

Maximum Service Temperature890°C

Weight Calculator

Chemical Composition

0 to 0.030%

17 to 19%

0 to 0.5%

0 to 1.0%

0 to 0.030%

0 to 0.040%

0 to 0.030%

0.2 to 1.1%

0 to 0.15%

77.1 to 82.8%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

23 %

Fatigue Strength

170 MPa

Poisson's Ratio

0.28

Reduction in Area

51 %

Shear Modulus

77 GPa

Shear Strength

310 MPa

Tensile Strength: Ultimate (UTS)

490 MPa

Tensile Strength: Yield (Proof)

250 MPa

Hardness

Brinell Hardness

160

Rockwell B Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

530 °C

Maximum Temperature: Mechanical

890 °C

Melting Completion (Liquidus)

1510 °C

Melting Onset (Solidus)

1430 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

25 W/m-K

Thermal Diffusivity

6.7 mm 2 /s

Thermal Expansion

11 µm/m-K

Thermal Shock Resistance

16 points

Electrical

Electrical Conductivity: Equal Volume

2.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

3.4 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

95 MJ/m 3

Resilience: Unit (Modulus of Resilience)

160 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

18 points

Strength to Weight: Bending

18 points

Environmental

Base Metal Price

9.0 % relative

Embodied Carbon

2.3 kg CO 2 /kg material

Embodied Energy

34 MJ/kg

Embodied Energy

34 MJ/kg 14 x 10 3 BTU/lb

Embodied Water

120 L/kg

Embodied Water

120 L/kg 15 gal/lb

Physical Other

Calomel Potential

-220 mV

Registered Designations & Aliases

439AISI 439AISI 439 (S43035) Stainless SteelS43035

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

ASTM A479 ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

ASTM A479 ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels ASTM A276: Standard Specification for Stainless Steel Bars and Shapes 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 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Corrosion of Stainless Steels, A. John Sedriks, 1996

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