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ASTM A439 Type D-2C (F43002) Cast Iron

ASTM A439 type D-2C is a type of austenitic nodular cast iron. Cited properties are appropriate for the stress relieved condition. ASTM A439 Type D-2C is the ASTM designation for this material. F43002 is the UNS number. Additionally, the British Standard (BS) designation is S2C. And the AFNOR (French) designation is FGS Ni22.

The graph bars on the material properties cards below compare ASTM A439 type D-2C 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

150

Elastic (Young's, Tensile) Modulus

180 GPa 27 x 10⁶ psi

Elongation at Break

22 %

Poisson's Ratio

0.3

Shear Modulus

70 GPa 10 x 10⁶ psi

Tensile Strength: Ultimate (UTS)

450 MPa 65 x 10³ psi

Tensile Strength: Yield (Proof)

220 MPa 32 x 10³ psi

Thermal Properties

Latent Heat of Fusion

290 J/g

Melting Completion (Liquidus)

1390 °C 2540 °F

Melting Onset (Solidus)

1350 °C 2460 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Expansion

14 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

16 % relative

Density

7.9 g/cm³ 490 lb/ft³

Embodied Carbon

3.6 kg CO₂/kg material

Embodied Energy

50 MJ/kg 21 x 10³ BTU/lb

Embodied Water

91 L/kg 11 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

83 MJ/m³

Resilience: Unit (Modulus of Resilience)

140 kJ/m³

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

16 points

Strength to Weight: Bending

17 points

Thermal Shock Resistance

13 points

Alloy Composition

Iron (Fe)Fe		67.1 to 76.2
Nickel (Ni)Ni		21 to 24
Manganese (Mn)Mn		1.8 to 2.4
Silicon (Si)Si		1.0 to 3.0
Carbon (C)C		0 to 2.9
Chromium (Cr)Cr		0 to 0.5
Phosphorus (P)P		0 to 0.080