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ASTM A217 Cast Steel vs. R05255 Alloy

ASTM A217 cast steel belongs to the iron alloys classification, while R05255 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM A217 cast steel and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 27
20
Poisson's Ratio 0.28 to 0.29
0.34
Shear Modulus, GPa 73 to 75
70
Tensile Strength: Ultimate (UTS), MPa 540 to 710
540
Tensile Strength: Yield (Proof), MPa 270 to 460
450

Thermal Properties

Latent Heat of Fusion, J/g 250 to 270
140
Specific Heat Capacity, J/kg-K 470
140
Thermal Conductivity, W/m-K 26 to 50
59
Thermal Expansion, µm/m-K 13
6.6

Otherwise Unclassified Properties

Density, g/cm3 7.8
17
Embodied Water, L/kg 47 to 87
630

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 570
530
Stiffness to Weight: Axial, points 13 to 14
6.3
Stiffness to Weight: Bending, points 24 to 25
11
Strength to Weight: Axial, points 19 to 25
9.1
Strength to Weight: Bending, points 19 to 23
8.9
Thermal Diffusivity, mm2/s 6.9 to 14
25
Thermal Shock Resistance, points 16 to 20
31