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SAE-AISI T15 Steel vs. N08801 Stainless Steel

Both SAE-AISI T15 steel and N08801 stainless steel are iron alloys. They have 50% 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 T15 steel and the bottom bar is N08801 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 76
77
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
860

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1690
1390
Melting Onset (Solidus), °C 1640
1360
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 43
30
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 16
5.5
Embodied Energy, MJ/kg 250
79
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 27
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 26 to 71
30
Strength to Weight: Bending, points 22 to 43
25
Thermal Diffusivity, mm2/s 5.6
3.3
Thermal Shock Resistance, points 26 to 70
20

Alloy Composition

Carbon (C), % 1.5 to 1.6
0 to 0.1
Chromium (Cr), % 3.8 to 5.0
19 to 22
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 67.5 to 73.5
39.5 to 50.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
30 to 34
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0