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SAE-AISI T1 Steel vs. S44635 Stainless Steel

Both SAE-AISI T1 steel and S44635 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 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 T1 steel and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
710

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1810
1460
Melting Onset (Solidus), °C 1750
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 20
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 45
22
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.4
Embodied Energy, MJ/kg 130
62
Embodied Water, L/kg 90
170

Common Calculations

PREN (Pitting Resistance) 34
39
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
25
Strength to Weight: Bending, points 20 to 40
23
Thermal Diffusivity, mm2/s 5.2
4.4
Thermal Shock Resistance, points 23 to 64
23

Alloy Composition

Carbon (C), % 0.65 to 0.8
0 to 0.025
Chromium (Cr), % 3.8 to 4.5
24.5 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
61.5 to 68.5
Manganese (Mn), % 0.1 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.3
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
0