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SAE-AISI T5 Steel vs. ASTM A369 Grade FP9

Both SAE-AISI T5 steel and ASTM A369 grade FP9 are iron alloys. They have 70% 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 SAE-AISI T5 steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 860 to 2140
470

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1750
1410
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
26
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
6.5
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 11
2.0
Embodied Energy, MJ/kg 170
28
Embodied Water, L/kg 140
87

Common Calculations

PREN (Pitting Resistance) 37
12
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 25 to 63
17
Strength to Weight: Bending, points 21 to 39
17
Thermal Diffusivity, mm2/s 5.5
6.9
Thermal Shock Resistance, points 26 to 66
13

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.15
Chromium (Cr), % 3.8 to 5.0
8.0 to 10
Cobalt (Co), % 7.0 to 9.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 60.6 to 68.3
87.1 to 90.3
Manganese (Mn), % 0.2 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0.5 to 1.3
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.4
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0