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SAE-AISI T2 Steel vs. AISI 308 Stainless Steel

Both SAE-AISI T2 steel and AISI 308 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 T2 steel and the bottom bar is AISI 308 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 780 to 2150
590

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1820
1420
Melting Onset (Solidus), °C 1760
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 19
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 46
17
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 11
3.2
Embodied Energy, MJ/kg 170
46
Embodied Water, L/kg 98
150

Common Calculations

PREN (Pitting Resistance) 36
20
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
21
Strength to Weight: Bending, points 20 to 40
20
Thermal Diffusivity, mm2/s 4.9
4.1
Thermal Shock Resistance, points 23 to 65
13

Alloy Composition

Carbon (C), % 0.8 to 0.9
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
19 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 70.8 to 75.8
64.1 to 71
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
10 to 12
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.8 to 2.4
0