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SAE-AISI T4 Steel vs. S35045 Stainless Steel

Both SAE-AISI T4 steel and S35045 stainless steel are iron alloys. They have 41% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T4 steel and the bottom bar is S35045 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
78
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
540

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1810
1390
Melting Onset (Solidus), °C 1750
1340
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
34
Density, g/cm3 9.4
8.0
Embodied Carbon, kg CO2/kg material 8.5
5.8
Embodied Energy, MJ/kg 130
83
Embodied Water, L/kg 120
230

Common Calculations

PREN (Pitting Resistance) 37
27
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 24 to 64
19
Strength to Weight: Bending, points 20 to 39
19
Thermal Diffusivity, mm2/s 5.4
3.2
Thermal Shock Resistance, points 24 to 64
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.7 to 0.8
0.060 to 0.1
Chromium (Cr), % 3.8 to 4.5
25 to 29
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 66.3 to 72.3
29.4 to 42.6
Manganese (Mn), % 0.1 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
32 to 37
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0