UNS S66286 (A-286, ASTM Grade 660) Stainless Steel

Precipitation-Hardening Stainless Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.9g/cm³

Elastic Modulus190GPa

Tensile Strength620MPa

Yield Strength280MPa

Brinell HardnessUnknown

Maximum Service Temperature920°C

Weight Calculator

Chemical Composition

0 to 0.080%

13.5 to 16%

24 to 27%

1.0 to 1.5%

0 to 2.0%

0 to 1.0%

0 to 0.040%

0 to 0.030%

1.9 to 2.4%

0.1 to 0.5%

0 to 0.35%

0.0010 to 0.010%

49.1 to 59.5%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

40 %

Fatigue Strength

240 MPa

Poisson's Ratio

0.29

Shear Modulus

75 GPa

Shear Strength

420 MPa

Tensile Strength: Ultimate (UTS)

620 MPa

Tensile Strength: Yield (Proof)

280 MPa

Physical

Density

7.9 g/cm 3

Thermal

Latent Heat of Fusion

300 J/g

Maximum Temperature: Corrosion

780 °C

Maximum Temperature: Mechanical

920 °C

Melting Completion (Liquidus)

1430 °C

Melting Onset (Solidus)

1370 °C

Specific Heat Capacity

470 J/kg-K

Thermal Conductivity

15 W/m-K

Thermal Diffusivity

4.0 mm 2 /s

Thermal Expansion

17 µm/m-K

Thermal Shock Resistance

13 points

Electrical

Electrical Conductivity: Equal Volume

1.9 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.2 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

200 MJ/m 3

Resilience: Unit (Modulus of Resilience)

190 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

22 points

Strength to Weight: Bending

20 points

Environmental

Base Metal Price

26 % relative

Embodied Carbon

6.0 kg CO 2 /kg material

Embodied Energy

87 MJ/kg

Embodied Energy

87 MJ/kg 37 x 10 3 BTU/lb

Embodied Water

170 L/kg

Embodied Water

170 L/kg 20 gal/lb

Registered Designations & Aliases

A-286ASTM Grade 660S66286UNS S66286 (A-286, ASTM Grade 660) Stainless Steel

Standards

ASTM A276 ASTM A276: Standard Specification for Stainless Steel Bars and Shapes

ASTM A638 ASTM A638: Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service

ASTM A638 ASTM A638: Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service ASTM A276: Standard Specification for Stainless Steel Bars and Shapes Welding Metallurgy of Stainless Steels, Erich Folkhard et al., 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