UNS N08020 (2.4660) Stainless Steel

Austenitic & General Stainless Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density8.2g/cm³

Elastic Modulus200GPa

Tensile Strength610MPa

Yield Strength270MPa

Brinell Hardness190HB

Maximum Service Temperature1100°C

Weight Calculator

Chemical Composition

0 to 0.070%

19 to 21%

32 to 38%

2.0 to 3.0%

0 to 2.0%

0 to 1.0%

0 to 0.045%

0 to 0.035%

3.0 to 4.0%

0 to 1.0%

29.9 to 44%

Mechanical

Elastic (Young's, Tensile) Modulus

200 GPa

Elongation at Break

34 %

Fatigue Strength

210 MPa

Poisson's Ratio

0.28

Reduction in Area

56 %

Shear Modulus

77 GPa

Shear Strength

410 MPa

Tensile Strength: Ultimate (UTS)

610 MPa

Tensile Strength: Yield (Proof)

270 MPa

Hardness

Brinell Hardness

190

Rockwell B Hardness

Physical

Density

8.2 g/cm 3

Thermal

Latent Heat of Fusion

300 J/g

Maximum Temperature: Corrosion

490 °C

Maximum Temperature: Mechanical

1100 °C

Melting Completion (Liquidus)

1410 °C

Melting Onset (Solidus)

1360 °C

Specific Heat Capacity

460 J/kg-K

Thermal Conductivity

12 W/m-K

Thermal Diffusivity

3.2 mm 2 /s

Thermal Expansion

15 µm/m-K

Thermal Shock Resistance

15 points

Electrical

Electrical Conductivity: Equal Volume

1.6 % IACS

Electrical Conductivity: Equal Weight (Specific)

1.8 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

170 MJ/m 3

Resilience: Unit (Modulus of Resilience)

180 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

21 points

Strength to Weight: Bending

20 points

Environmental

Base Metal Price

38 % relative

Embodied Carbon

6.6 kg CO 2 /kg material

Embodied Energy

92 MJ/kg

Embodied Energy

92 MJ/kg 40 x 10 3 BTU/lb

Embodied Water

220 L/kg

Embodied Water

220 L/kg 26 gal/lb

Registered Designations & Aliases

2.4660N08020UNS N08020 (2.4660) 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 A276 ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

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

ASTM B462 ASTM B462: Standard Specification for Forged or Rolled UNS N06030, UNS N06022, UNS N06035, UNS N06200, UNS N06059, UNS N06686, UNS N08020, UNS N08024, UNS N08026, UNS N08367, UNS N10276, UNS N10665, UNS N10675, UNS N10629, UNS N08031, UNS N06045, UNS N06025, and UNS R20033 Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service

ASTM B463 ASTM B463: Standard Specification for UNS N08020, UNS N08026, and UNS N08024 Alloy Plate, Sheet, and Strip

ASTM B464 ASTM B464: Standard Specification for Welded UNS N08020, N08024, and N08026 Alloy Pipe

ASTM B729 ASTM B729: Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube

ASTM B729 ASTM B729: Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube ASTM B463: Standard Specification for UNS N08020, UNS N08026, and UNS N08024 Alloy Plate, Sheet, and Strip ASTM B464: Standard Specification for Welded UNS N08020, N08024, and N08026 Alloy Pipe ASTM B462: Standard Specification for Forged or Rolled UNS N06030, UNS N06022, UNS N06035, UNS N06200, UNS N06059, UNS N06686, UNS N08020, UNS N08024, UNS N08026, UNS N08367, UNS N10276, UNS N10665, UNS N10675, UNS N10629, UNS N08031, UNS N06045, UNS N06025, and UNS R20033 Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive High-Temperature Service 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 A276: Standard Specification for Stainless Steel Bars and Shapes Nickel Alloys, Ulrich Heubner (editor), 1998 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 ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels