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ASTM A203 Steel vs. SAE-AISI T8 Steel

Both ASTM A203 steel and SAE-AISI T8 steel are iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM A203 steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 520 to 590
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1730
Melting Onset (Solidus), °C 1420
1670
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 52
18
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
45
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
10
Embodied Energy, MJ/kg 21 to 23
160
Embodied Water, L/kg 50 to 52
120

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18 to 21
24 to 66
Strength to Weight: Bending, points 18 to 20
21 to 41
Thermal Diffusivity, mm2/s 14
4.8
Thermal Shock Resistance, points 15 to 17
24 to 66