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S32550 Stainless Steel vs. SAE-AISI T15 Steel

Both S32550 stainless steel and SAE-AISI T15 steel are iron alloys. They have 68% 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 S32550 stainless steel and the bottom bar is SAE-AISI T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 860
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1440
1690
Melting Onset (Solidus), °C 1390
1640
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
43
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.8
16
Embodied Energy, MJ/kg 53
250
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 40
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 31
26 to 71
Strength to Weight: Bending, points 26
22 to 43
Thermal Diffusivity, mm2/s 4.4
5.6
Thermal Shock Resistance, points 23
26 to 70

Alloy Composition

Carbon (C), % 0 to 0.040
1.5 to 1.6
Chromium (Cr), % 24 to 27
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 1.5 to 2.5
0 to 0.25
Iron (Fe), % 57.2 to 67
67.5 to 73.5
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 2.9 to 3.9
0 to 1.0
Nickel (Ni), % 4.5 to 6.5
0 to 0.3
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0
4.5 to 5.3