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S31100 Stainless Steel vs. Chromium 33

S31100 stainless steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have 65% of their average alloy composition in common. There are 21 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 S31100 stainless steel and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
45
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 1000
850
Tensile Strength: Yield (Proof), MPa 710
430

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 16
36
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.1
6.0
Embodied Energy, MJ/kg 44
84
Embodied Water, L/kg 170
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
320
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
450
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
30
Strength to Weight: Bending, points 29
25
Thermal Shock Resistance, points 28
21

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.015
Chromium (Cr), % 25 to 27
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Iron (Fe), % 63.6 to 69
25.7 to 37.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 6.0 to 7.0
30 to 33
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.25
0