Chromium 33 vs. S45500 Stainless Steel

Chromium 33 belongs to the otherwise unclassified metals classification, while S45500 stainless steel belongs to the iron alloys. They have 54% 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 chromium 33 and the bottom bar is S45500 stainless steel.

Chromium Alloy 33 (R20033)UNS S45500 (Alloy 455, XM-16) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		45
Elongation at Break, %		3.4 to 11

Poisson's Ratio		0.27
Poisson's Ratio		0.28

Shear Modulus, GPa		81
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		850
Tensile Strength: Ultimate (UTS), MPa		1370 to 1850

Tensile Strength: Yield (Proof), MPa		430
Tensile Strength: Yield (Proof), MPa		1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		270

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		17

Density, g/cm³		7.9
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		6.0
Embodied Carbon, kg CO₂/kg material		3.8

Embodied Energy, MJ/kg		84
Embodied Energy, MJ/kg		57

Embodied Water, L/kg		250
Embodied Water, L/kg		120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		320
Resilience: Ultimate (Unit Rupture Work), MJ/m³		45 to 190

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		30
Strength to Weight: Axial, points		48 to 65

Strength to Weight: Bending, points		25
Strength to Weight: Bending, points		35 to 42

Thermal Shock Resistance, points		21
Thermal Shock Resistance, points		48 to 64

Alloy Composition

Carbon (C), %		0 to 0.015
Carbon (C), %		0 to 0.050

Chromium (Cr), %		31 to 35
Chromium (Cr), %		11 to 12.5

Copper (Cu), %		0.3 to 1.2
Copper (Cu), %		1.5 to 2.5

Iron (Fe), %		25.7 to 37.9
Iron (Fe), %		71.5 to 79.2

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0 to 0.5

Molybdenum (Mo), %		0.5 to 2.0
Molybdenum (Mo), %		0 to 0.5

Nickel (Ni), %		30 to 33
Nickel (Ni), %		7.5 to 9.5

Niobium (Nb), %		0
Niobium (Nb), %		0 to 0.5

Nitrogen (N), %		0.35 to 0.6
Nitrogen (N), %		0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0 to 0.5

Sulfur (S), %		0 to 0.010
Sulfur (S), %		0 to 0.030

Tantalum (Ta), %		0
Tantalum (Ta), %		0 to 0.5

Titanium (Ti), %		0
Titanium (Ti), %		0.8 to 1.4