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SAE-AISI T15 Steel vs. S64512 Stainless Steel

Both SAE-AISI T15 steel and S64512 stainless 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 (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T15 steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
1140

Thermal Properties

Latent Heat of Fusion, J/g 250
270
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
28
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 43
10
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 16
3.3
Embodied Energy, MJ/kg 250
47
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 27
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
40
Strength to Weight: Bending, points 22 to 43
31
Thermal Diffusivity, mm2/s 5.6
7.5
Thermal Shock Resistance, points 26 to 70
42

Alloy Composition

Carbon (C), % 1.5 to 1.6
0.080 to 0.15
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
0
Iron (Fe), % 67.5 to 73.5
80.6 to 84.7
Manganese (Mn), % 0.15 to 0.4
0.5 to 0.9
Molybdenum (Mo), % 0 to 1.0
1.5 to 2.0
Nickel (Ni), % 0 to 0.3
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0.25 to 0.4