Home>Iron AlloyUp Three>Cast IronUp Two>Austenitic Nodular Cast IronUp One

ASTM A439 Type D-5S Cast Iron

ASTM A439 type D-5S is a type of austenitic nodular cast iron. Cited properties are appropriate for the stress relieved condition. ASTM A439 Type D-5S is the ASTM designation for this material. Additionally, the British Standard (BS) designation is S5S. And the AFNOR (French) designation is FGS Ni35 Si5 Cr2.

The graph bars on the material properties cards below compare ASTM A439 type D-5S 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

160

Elastic (Young's, Tensile) Modulus

180 GPa 26 x 10⁶ psi

Elongation at Break

11 %

Poisson's Ratio

0.3

Shear Modulus

70 GPa 10 x 10⁶ psi

Tensile Strength: Ultimate (UTS)

430 MPa 63 x 10³ psi

Tensile Strength: Yield (Proof)

240 MPa 34 x 10³ psi

Thermal Properties

Latent Heat of Fusion

350 J/g

Melting Completion (Liquidus)

1340 °C 2450 °F

Melting Onset (Solidus)

1300 °C 2370 °F

Specific Heat Capacity

490 J/kg-K 0.12 BTU/lb-°F

Thermal Expansion

13 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

25 % relative

Density

7.8 g/cm³ 490 lb/ft³

Embodied Carbon

4.9 kg CO₂/kg material

Embodied Energy

68 MJ/kg 29 x 10³ BTU/lb

Embodied Water

120 L/kg 14 gal/lb

Common Calculations

PREN (Pitting Resistance)

2.1

Resilience: Ultimate (Unit Rupture Work)

42 MJ/m³

Resilience: Unit (Modulus of Resilience)

150 kJ/m³

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

15 points

Strength to Weight: Bending

16 points

Thermal Shock Resistance

13 points

Alloy Composition

Iron (Fe)Fe		51.9 to 59.4
Nickel (Ni)Ni		34 to 37
Silicon (Si)Si		4.9 to 5.5
Chromium (Cr)Cr		1.8 to 2.3
Carbon (C)C		0 to 2.3
Manganese (Mn)Mn		0 to 1.0
Phosphorus (P)P		0 to 0.080