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SAE-AISI T4 Steel vs. S32205 Stainless Steel

Both SAE-AISI T4 steel and S32205 stainless steel are iron alloys. They have 73% 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 T4 steel and the bottom bar is S32205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
740

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1750
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
18
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
3.7
Embodied Energy, MJ/kg 130
50
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 37
36
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
26
Strength to Weight: Bending, points 20 to 39
23
Thermal Diffusivity, mm2/s 5.4
4.0
Thermal Shock Resistance, points 24 to 64
20

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
22 to 23
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 66.3 to 72.3
63.7 to 70.4
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
3.0 to 3.5
Nickel (Ni), % 0 to 0.3
4.5 to 6.5
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0