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SAE-AISI T15 Steel vs. ASTM A369 Grade FPA

Both SAE-AISI T15 steel and ASTM A369 grade FPA are iron alloys. They have 71% 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 T15 steel and the bottom bar is ASTM A369 grade FPA.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1690
1460
Melting Onset (Solidus), °C 1640
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
52
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 43
1.8
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 16
1.4
Embodied Energy, MJ/kg 250
18
Embodied Water, L/kg 140
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 26 to 71
13
Strength to Weight: Bending, points 22 to 43
15
Thermal Diffusivity, mm2/s 5.6
14
Thermal Shock Resistance, points 26 to 70
12

Alloy Composition

Carbon (C), % 1.5 to 1.6
0 to 0.25
Chromium (Cr), % 3.8 to 5.0
0
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
98.3 to 99.63
Manganese (Mn), % 0.15 to 0.4
0.27 to 0.93
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.4
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0