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SAE-AISI T2 Steel vs. ASTM A372 Grade B Steel

Both SAE-AISI T2 steel and ASTM A372 grade B steel are iron alloys. They have 74% of their average alloy composition in common. 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 SAE-AISI T2 steel and the bottom bar is ASTM A372 grade B steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 780 to 2150
600

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1820
1460
Melting Onset (Solidus), °C 1760
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 19
52
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 46
1.8
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 11
1.4
Embodied Energy, MJ/kg 170
18
Embodied Water, L/kg 98
46

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 23 to 64
21
Strength to Weight: Bending, points 20 to 40
20
Thermal Diffusivity, mm2/s 4.9
14
Thermal Shock Resistance, points 23 to 65
19

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.35
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 75.8
97.9 to 99.85
Manganese (Mn), % 0.2 to 0.4
0 to 1.4
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0