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SAE-AISI A9 Steel vs. ASTM A217 Cast Steel

Both SAE-AISI A9 steel and ASTM A217 cast steel are iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A9 steel and the bottom bar is ASTM A217 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28 to 0.29
Shear Modulus, GPa 74
73 to 75
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
540 to 710

Thermal Properties

Latent Heat of Fusion, J/g 280
250 to 270
Melting Completion (Liquidus), °C 1460
1450 to 1460
Melting Onset (Solidus), °C 1410
1410 to 1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 35
26 to 50
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.3 to 9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.4 to 11

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.4 to 7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.5 to 2.1
Embodied Energy, MJ/kg 70
20 to 28
Embodied Water, L/kg 82
47 to 87

Common Calculations

PREN (Pitting Resistance) 10
2.5 to 13
Stiffness to Weight: Axial, points 14
13 to 14
Stiffness to Weight: Bending, points 25
24 to 25
Strength to Weight: Axial, points 28 to 73
19 to 25
Strength to Weight: Bending, points 24 to 46
19 to 23
Thermal Diffusivity, mm2/s 9.6
6.9 to 14
Thermal Shock Resistance, points 25 to 66
16 to 20