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ASTM B522 Class II vs. ASTM A217 Cast Steel

ASTM B522 class II belongs to the otherwise unclassified metals classification, while ASTM A217 cast steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, 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 B522 class II and the bottom bar is ASTM A217 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
190
Elongation at Break, % 1.1 to 28
21 to 27
Poisson's Ratio 0.41
0.28 to 0.29
Shear Modulus, GPa 34
73 to 75
Tensile Strength: Ultimate (UTS), MPa 280 to 490
540 to 710
Tensile Strength: Yield (Proof), MPa 120 to 210
270 to 460

Thermal Properties

Latent Heat of Fusion, J/g 77
250 to 270
Melting Completion (Liquidus), °C 1030
1450 to 1460
Melting Onset (Solidus), °C 1030
1410 to 1420
Specific Heat Capacity, J/kg-K 160
470
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.3 to 9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.7
8.4 to 11

Otherwise Unclassified Properties

Density, g/cm3 17
7.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 63
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 75 to 230
190 to 570
Stiffness to Weight: Axial, points 3.1
13 to 14
Stiffness to Weight: Bending, points 8.9
24 to 25
Strength to Weight: Axial, points 4.4 to 7.8
19 to 25
Strength to Weight: Bending, points 5.5 to 8.0
19 to 23
Thermal Shock Resistance, points 13 to 24
16 to 20