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S64512 Stainless Steel vs. SAE-AISI T4 Steel

Both S64512 stainless steel and SAE-AISI T4 steel are iron alloys. They have 75% 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 S64512 stainless steel and the bottom bar is SAE-AISI T4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 1140
800 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1420
1750
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 28
21
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
55
Density, g/cm3 7.8
9.4
Embodied Carbon, kg CO2/kg material 3.3
8.5
Embodied Energy, MJ/kg 47
130
Embodied Water, L/kg 110
120

Common Calculations

PREN (Pitting Resistance) 18
37
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 40
24 to 64
Strength to Weight: Bending, points 31
20 to 39
Thermal Diffusivity, mm2/s 7.5
5.4
Thermal Shock Resistance, points 42
24 to 64

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.7 to 0.8
Chromium (Cr), % 11 to 12.5
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.6 to 84.7
66.3 to 72.3
Manganese (Mn), % 0.5 to 0.9
0.1 to 0.4
Molybdenum (Mo), % 1.5 to 2.0
0.4 to 1.0
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.35
0.2 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0.25 to 0.4
0.8 to 1.2