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ASTM A182 Grade F12 Class 2 vs. SAE-AISI T4 Steel

Both ASTM A182 grade F12 class 2 and SAE-AISI T4 steel are iron alloys. They have 72% of their average alloy composition in common. There are 22 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 A182 grade F12 class 2 and the bottom bar is SAE-AISI T4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 540
800 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1420
1750
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 43
21
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
55
Density, g/cm3 7.8
9.4
Embodied Carbon, kg CO2/kg material 1.6
8.5
Embodied Energy, MJ/kg 21
130
Embodied Water, L/kg 52
120

Common Calculations

PREN (Pitting Resistance) 2.8
37
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 19
24 to 64
Strength to Weight: Bending, points 19
20 to 39
Thermal Diffusivity, mm2/s 12
5.4
Thermal Shock Resistance, points 16
24 to 64

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.7 to 0.8
Chromium (Cr), % 0.8 to 1.3
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.4 to 98.3
66.3 to 72.3
Manganese (Mn), % 0.3 to 0.8
0.1 to 0.4
Molybdenum (Mo), % 0.44 to 0.65
0.4 to 1.0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.1 to 0.6
0.2 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
0.8 to 1.2