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Austenitic Grey Cast Iron (Ni-Resist)

Austenitic grey cast iron is a cast iron.

The properties of austenitic grey cast iron include eight common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare austenitic grey cast iron to: cast irons (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

110 to 210

Elastic (Young's, Tensile) Modulus

180 GPa 26 to 27 x 106 psi

Poisson's Ratio

0.29 to 0.3

Shear Modulus

69 to 72 GPa 10 x 106 psi

Tensile Strength: Ultimate (UTS)

150 to 230 MPa 22 to 34 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 to 350 J/g

Melting Completion (Liquidus)

1340 to 1400 °C 2440 to 2540 °F

Melting Onset (Solidus)

1290 to 1350 °C 2360 to 2470 °F

Specific Heat Capacity

470 to 490 J/kg-K 0.11 to 0.12 BTU/lb-°F

Thermal Expansion

13 to 14 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

14 to 24 % relative


7.7 to 8.1 g/cm3 480 to 500 lb/ft3

Embodied Carbon

3.1 to 4.7 kg CO2/kg material

Embodied Energy

43 to 65 MJ/kg 18 to 28 x 103 BTU/lb

Embodied Water

93 to 120 L/kg 11 to 15 gal/lb

Common Calculations

PREN (Pitting Resistance)

2.0 to 5.0

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

23 to 25 points

Strength to Weight: Axial

5.3 to 8.2 points

Strength to Weight: Bending

7.9 to 11 points

Thermal Shock Resistance

4.5 to 6.5 points

Followup Questions

Further Reading

ASTM A436: Standard Specification for Austenitic Gray Iron Castings

ISO 2892: Austenitic Cast Irons - Classification

Cast Iron: Physical and Engineering Properties, Harold T. Angus, 1976

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015