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SAE-AISI T2 Steel vs. ASTM A232 Spring Steel

Both SAE-AISI T2 steel and ASTM A232 spring steel are iron alloys. They have 76% 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 A232 spring 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
1790

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1820
1460
Melting Onset (Solidus), °C 1760
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 19
52
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 46
2.3
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 11
2.0
Embodied Energy, MJ/kg 170
28
Embodied Water, L/kg 98
51

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 23 to 64
64
Strength to Weight: Bending, points 20 to 40
42
Thermal Diffusivity, mm2/s 4.9
14
Thermal Shock Resistance, points 23 to 65
53

Alloy Composition

Carbon (C), % 0.8 to 0.9
0.48 to 0.53
Chromium (Cr), % 3.8 to 4.5
0.8 to 1.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 75.8
96.8 to 97.7
Manganese (Mn), % 0.2 to 0.4
0.7 to 0.9
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0.15 to 0.3