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SAE-AISI T15 Steel vs. S21460 Stainless Steel

Both SAE-AISI T15 steel and S21460 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 20 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 S21460 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
77
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
830

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1690
1380
Melting Onset (Solidus), °C 1640
1330
Specific Heat Capacity, J/kg-K 430
480
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 43
14
Density, g/cm3 8.7
7.6
Embodied Carbon, kg CO2/kg material 16
3.0
Embodied Energy, MJ/kg 250
43
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 27
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
30
Strength to Weight: Bending, points 22 to 43
26
Thermal Shock Resistance, points 26 to 70
17

Alloy Composition

Carbon (C), % 1.5 to 1.6
0 to 0.12
Chromium (Cr), % 3.8 to 5.0
17 to 19
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
57.3 to 63.7
Manganese (Mn), % 0.15 to 0.4
14 to 16
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0