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ASTM A369 Grade FP12 vs. SAE-AISI T2 Steel

Both ASTM A369 grade FP12 and SAE-AISI T2 steel are iron alloys. They have 76% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP12 and the bottom bar is SAE-AISI T2 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
79
Tensile Strength: Ultimate (UTS), MPa 470
780 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1470
1820
Melting Onset (Solidus), °C 1430
1760
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 45
19
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
46
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 1.6
11
Embodied Energy, MJ/kg 21
170
Embodied Water, L/kg 52
98

Common Calculations

PREN (Pitting Resistance) 2.8
36
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
23 to 64
Strength to Weight: Bending, points 17
20 to 40
Thermal Diffusivity, mm2/s 12
4.9
Thermal Shock Resistance, points 14
23 to 65

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.8 to 0.9
Chromium (Cr), % 0.8 to 1.3
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.8 to 98.4
70.8 to 75.8
Manganese (Mn), % 0.3 to 0.61
0.2 to 0.4
Molybdenum (Mo), % 0.44 to 0.65
0 to 1.0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4