UNS S31100 (XM-26) Stainless Steel

Duplex Stainless Steels

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus200GPa

Tensile Strength1000MPa

Yield Strength710MPa

Brinell Hardness270HB

Maximum Service Temperature1100°C

Weight Calculator

Chemical Composition

0 to 0.060%

25 to 27%

6.0 to 7.0%

0 to 1.0%

0 to 0.045%

0 to 0.030%

0 to 0.25%

63.6 to 69%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

4.5 %

Fatigue Strength

330 MPa

Poisson's Ratio

0.27

Shear Modulus

79 GPa

Shear Strength

580 MPa

Tensile Strength: Ultimate (UTS)

1000 MPa

Tensile Strength: Yield (Proof)

710 MPa

Hardness

Brinell Hardness

270

Rockwell C Hardness

Physical

Density

7.7 g/cm 3

Thermal

Latent Heat of Fusion

300 J/g

Maximum Temperature: Corrosion

470 °C

Maximum Temperature: Mechanical

1100 °C

Melting Completion (Liquidus)

1420 °C

Melting Onset (Solidus)

1380 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

16 W/m-K

Thermal Diffusivity

4.2 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

28 points

Electrical

Electrical Conductivity: Equal Volume

2.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.4 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

40 MJ/m 3

Resilience: Unit (Modulus of Resilience)

1240 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

36 points

Strength to Weight: Bending

29 points

Environmental

Base Metal Price

16 % relative

Embodied Carbon

3.1 kg CO 2 /kg material

Embodied Energy

44 MJ/kg

Embodied Energy

44 MJ/kg 19 x 10 3 BTU/lb

Embodied Water

170 L/kg

Embodied Water

170 L/kg 20 gal/lb

Registered Designations & Aliases

S31100UNS S31100 (XM-26) Stainless SteelXM-26

Standards

ASTM A693 ASTM A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM A693 ASTM A693: Standard Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip 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 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