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ASTM Grade HP Steel vs. Austenitic Nodular Cast Iron

Both ASTM grade HP steel and austenitic nodular cast iron are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
180 to 190
Elongation at Break, % 5.1
6.8 to 34
Poisson's Ratio 0.28
0.29 to 0.3
Shear Modulus, GPa 78
70 to 72
Tensile Strength: Ultimate (UTS), MPa 490
430 to 500
Tensile Strength: Yield (Proof), MPa 260
190 to 240

Thermal Properties

Latent Heat of Fusion, J/g 320
280 to 350
Melting Completion (Liquidus), °C 1370
1340 to 1400
Melting Onset (Solidus), °C 1330
1300 to 1360
Specific Heat Capacity, J/kg-K 480
470 to 490
Thermal Expansion, µm/m-K 16
13 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 34
16 to 25
Density, g/cm3 7.9
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 5.8
3.5 to 4.9
Embodied Energy, MJ/kg 82
48 to 68
Embodied Water, L/kg 220
91 to 120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
24 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
98 to 160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24 to 25
Strength to Weight: Axial, points 17
15 to 18
Strength to Weight: Bending, points 17
16 to 18
Thermal Shock Resistance, points 11
12 to 15