EN 1.4477 (X2CrNiMoN29-7-2) Stainless Steel

Duplex Stainless Steels

Material conditionhot worked

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.7g/cm³

Elastic Modulus210GPa

Tensile Strength880MPa

Yield Strength620MPa

Brinell Hardness270HB

Maximum Service Temperature1100°C

Weight Calculator

Chemical Composition

0 to 0.030%

28 to 30%

5.8 to 7.5%

1.5 to 2.6%

0.8 to 1.5%

0 to 0.5%

0.3 to 0.4%

0 to 0.030%

0 to 0.015%

0 to 0.8%

56.6 to 63.6%

Mechanical

Elastic (Young's, Tensile) Modulus

210 GPa

Elongation at Break

23 %

Fatigue Strength

420 MPa

Impact Strength: V-Notched Charpy

110 J

Poisson's Ratio

0.27

Shear Modulus

81 GPa

Shear Strength

550 MPa

Tensile Strength: Ultimate (UTS)

880 MPa

Tensile Strength: Yield (Proof)

620 MPa

Hardness

Brinell Hardness

270

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)

1380 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

13 W/m-K

Thermal Diffusivity

3.5 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

23 points

Electrical

Electrical Conductivity: Equal Volume

2.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.5 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

180 MJ/m 3

Resilience: Unit (Modulus of Resilience)

940 kJ/m 3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

31 points

Strength to Weight: Bending

26 points

Environmental

Base Metal Price

20 % relative

Embodied Carbon

3.7 kg CO 2 /kg material

Embodied Energy

52 MJ/kg

Embodied Energy

52 MJ/kg 23 x 10 3 BTU/lb

Embodied Water

190 L/kg

Embodied Water

190 L/kg 23 gal/lb

Registered Designations & Aliases

1.44771.4477EN 1.4477 (X2CrNiMoN29-7-2) Stainless SteelX2CrNiMoN29-7-2X2CrNiMoN29-7-2

Standards

EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels

EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels

EN 10088-2 EN 10088-2: 2005 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes

EN 10088-2 EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes

EN 10088-3 EN 10088-3: 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

EN 10088-3 EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

EN 10088-4 EN 10088-4: 2009 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes

EN 10088-5 EN 10088-5: 2009 Stainless steels. Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes

EN 10297-2 EN 10297-2: 2005 Seamless circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions