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SAE-AISI T15 Steel vs. S45503 Stainless Steel

Both SAE-AISI T15 steel and S45503 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T15 steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
1610 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1690
1440
Melting Onset (Solidus), °C 1640
1400
Specific Heat Capacity, J/kg-K 430
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 43
15
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 16
3.4
Embodied Energy, MJ/kg 250
48
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 27
13
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 26 to 71
57 to 65
Strength to Weight: Bending, points 22 to 43
39 to 43
Thermal Shock Resistance, points 26 to 70
56 to 64

Alloy Composition

Carbon (C), % 1.5 to 1.6
0 to 0.010
Chromium (Cr), % 3.8 to 5.0
11 to 12.5
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 67.5 to 73.5
72.4 to 78.9
Manganese (Mn), % 0.15 to 0.4
0 to 0.5
Molybdenum (Mo), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 0.3
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.15 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0