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

ASTM A436 Type 1 (L-NiCuCr 15 6 2, F41000) Cast Iron

ASTM A436 type 1 is a type of austenitic grey cast iron. Cited properties are appropriate for the stress relieved condition. ASTM A436 Type 1 is the ASTM designation for this material. F41000 is the UNS number. Additionally, the British Standard (BS) designation is F1. And the AFNOR (French) designation is FGL Ni15 Cu6 Cr2.

The graph bars on the material properties cards below compare ASTM A436 type 1 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

Poisson's Ratio

0.3

Shear Modulus

69 GPa 10 x 10⁶ psi

Tensile Strength: Ultimate (UTS)

190 MPa 28 x 10³ psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Melting Completion (Liquidus)

1380 °C 2510 °F

Melting Onset (Solidus)

1330 °C 2430 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Expansion

14 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

14 % relative

Density

7.9 g/cm³ 490 lb/ft³

Embodied Carbon

3.1 kg CO₂/kg material

Embodied Energy

43 MJ/kg 18 x 10³ BTU/lb

Embodied Water

100 L/kg 12 gal/lb

Common Calculations

PREN (Pitting Resistance)

2.0

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

6.8 points

Strength to Weight: Bending

9.4 points

Thermal Shock Resistance

5.5 points

Alloy Composition

Iron (Fe)Fe		65.1 to 78
Nickel (Ni)Ni		13.5 to 17.5
Copper (Cu)Cu		5.5 to 7.5
Chromium (Cr)Cr		1.5 to 2.5
Silicon (Si)Si		1.0 to 2.8
Carbon (C)C		0 to 3.0
Manganese (Mn)Mn		0.5 to 1.5
Sulfur (S)S		0 to 0.12