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SAE-AISI T5 Steel vs. S24000 Stainless Steel

Both SAE-AISI T5 steel and S24000 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 20 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 T5 steel and the bottom bar is S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 860 to 2140
770

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1810
1390
Melting Onset (Solidus), °C 1750
1350
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 9.4
7.6
Embodied Carbon, kg CO2/kg material 11
2.7
Embodied Energy, MJ/kg 170
39
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 37
23
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 25 to 63
28
Strength to Weight: Bending, points 21 to 39
24
Thermal Shock Resistance, points 26 to 66
16

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.080
Chromium (Cr), % 3.8 to 5.0
17 to 19
Cobalt (Co), % 7.0 to 9.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 60.6 to 68.3
61.5 to 69
Manganese (Mn), % 0.2 to 0.4
11.5 to 14.5
Molybdenum (Mo), % 0.5 to 1.3
0
Nickel (Ni), % 0 to 0.3
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0.2 to 0.4
0 to 0.75
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