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K93500 Alloy vs. S31730 Stainless Steel

Both K93500 alloy and S31730 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 19 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 K93500 alloy and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 490 to 810
540

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
24
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 4.7
4.6
Embodied Energy, MJ/kg 65
63
Embodied Water, L/kg 130
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 27
19
Strength to Weight: Bending, points 17 to 23
18
Thermal Shock Resistance, points 15 to 25
12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.25
17 to 19
Cobalt (Co), % 5.0
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 61.4 to 63
52.4 to 61
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 32
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0