UNS S32950 Stainless Steel

Duplex Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength780MPa

Yield Strength550MPa

Brinell Hardness260HB

Maximum Service Temperature1100°C

Weight Calculator

Chemical Composition

0 to 0.030%

26 to 29%

3.5 to 5.2%

1.0 to 2.5%

0 to 2.0%

0 to 0.6%

0.15 to 0.35%

0 to 0.035%

0 to 0.010%

60.3 to 69.4%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

17 %

Fatigue Strength

330 MPa

Poisson's Ratio

0.27

Shear Modulus

80 GPa

Shear Strength

480 MPa

Tensile Strength: Ultimate (UTS)

780 MPa

Tensile Strength: Yield (Proof)

550 MPa

Hardness

Brinell Hardness

260

Rockwell C Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

300 J/g

Maximum Temperature: Corrosion

460 °C

Maximum Temperature: Mechanical

1100 °C

Melting Completion (Liquidus)

1430 °C

Melting Onset (Solidus)

1390 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

16 W/m-K

Thermal Diffusivity

4.3 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

21 points

Electrical

Electrical Conductivity: Equal Volume

2.1 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.5 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

120 MJ/m 3

Resilience: Unit (Modulus of Resilience)

730 kJ/m 3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

28 points

Strength to Weight: Bending

24 points

Environmental

Base Metal Price

17 % relative

Embodied Carbon

3.4 kg CO 2 /kg material

Embodied Energy

47 MJ/kg

Embodied Energy

47 MJ/kg 20 x 10 3 BTU/lb

Embodied Water

180 L/kg

Embodied Water

180 L/kg 21 gal/lb

Registered Designations & Aliases

S32950UNS S32950 Stainless Steel

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 A473 ASTM A473: Standard Specification for Stainless Steel Forgings Duplex Stainless Steels, Iris Alvarez-Armas and Suzanne Degallaix-Moreuil (editors), 2009 Duplex Stainless Steels: Microstructure, Properties and Applications, Robert N. Gunn (editor), 1997 ASTM A479: Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels 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 of Stainless Steels, Erich Folkhard et al., 2012 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Corrosion of Stainless Steels, A. John Sedriks, 1996

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