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AISI 205 Stainless Steel vs. SAE-AISI T8 Steel

Both AISI 205 stainless steel and SAE-AISI T8 steel are iron alloys. They have 70% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI 205 stainless steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1380
1730
Melting Onset (Solidus), °C 1340
1670
Specific Heat Capacity, J/kg-K 480
420
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
45
Density, g/cm3 7.6
9.0
Embodied Carbon, kg CO2/kg material 2.6
10
Embodied Energy, MJ/kg 37
160
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 23
30
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 26
22
Strength to Weight: Axial, points 29 to 52
24 to 66
Strength to Weight: Bending, points 25 to 37
21 to 41
Thermal Shock Resistance, points 16 to 29
24 to 66

Alloy Composition

Carbon (C), % 0.12 to 0.25
0.75 to 0.85
Chromium (Cr), % 16.5 to 18.5
3.8 to 4.5
Cobalt (Co), % 0
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.6 to 68.1
69.3 to 75.4
Manganese (Mn), % 14 to 15.5
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 1.0
Nickel (Ni), % 1.0 to 1.7
0 to 0.3
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4

Comparable Variants