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SAE-AISI T4 Steel vs. S32615 Stainless Steel

Both SAE-AISI T4 steel and S32615 stainless steel are iron alloys. They have 58% 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 T4 steel and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
620

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Melting Completion (Liquidus), °C 1810
1350
Melting Onset (Solidus), °C 1750
1310
Specific Heat Capacity, J/kg-K 410
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 55
24
Density, g/cm3 9.4
7.6
Embodied Carbon, kg CO2/kg material 8.5
4.4
Embodied Energy, MJ/kg 130
63
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 37
21
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
23
Strength to Weight: Bending, points 20 to 39
21
Thermal Shock Resistance, points 24 to 64
15

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.070
Chromium (Cr), % 3.8 to 4.5
16.5 to 19.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 66.3 to 72.3
46.4 to 57.9
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
0.3 to 1.5
Nickel (Ni), % 0 to 0.3
19 to 22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.4
4.8 to 6.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0