AISI 429 (S42900) Stainless Steel

Ferritic Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength480MPa

Yield Strength260MPa

Brinell Hardness160HB

Maximum Service Temperature810°C

Weight Calculator

Chemical Composition

0 to 0.12%

14 to 16%

0 to 1.0%

0 to 0.040%

0 to 0.030%

81.8 to 86%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

25 %

Fatigue Strength

180 MPa

Poisson's Ratio

0.28

Reduction in Area

50 %

Shear Modulus

77 GPa

Shear Strength

300 MPa

Tensile Strength: Ultimate (UTS)

480 MPa

Tensile Strength: Yield (Proof)

260 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

400 °C

Maximum Temperature: Mechanical

810 °C

Melting Completion (Liquidus)

1440 °C

Melting Onset (Solidus)

1400 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

26 W/m-K

Thermal Diffusivity

6.9 mm 2 /s

Thermal Expansion

10 µm/m-K

Thermal Shock Resistance

17 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)

99 MJ/m 3

Resilience: Unit (Modulus of Resilience)

170 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

7.5 % relative

Embodied Carbon

2.0 kg CO 2 /kg material

Embodied Energy

28 MJ/kg

Embodied Energy

28 MJ/kg 12 x 10 3 BTU/lb

Embodied Water

110 L/kg

Embodied Water

110 L/kg 13 gal/lb

Registered Designations & Aliases

429AISI 429AISI 429 (S42900) Stainless SteelS42900

Standards

ASTM A182 ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

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 A473 ASTM A473: Standard Specification for Stainless Steel Forgings

ASTM A493 ASTM A493: Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

ASTM A493 ASTM A493: Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging ASTM A473: Standard Specification for Stainless Steel Forgings ASTM A182: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service 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