S31655 Stainless Steel vs. Chromium 33

S31655 stainless steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have 64% 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 S31655 stainless steel and the bottom bar is chromium 33.

UNS S31655 Stainless Steel Chromium Alloy 33 (R20033)

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		39
Elongation at Break, %		45

Poisson's Ratio		0.28
Poisson's Ratio		0.27

Shear Modulus, GPa		78
Shear Modulus, GPa		81

Tensile Strength: Ultimate (UTS), MPa		710
Tensile Strength: Ultimate (UTS), MPa		850

Tensile Strength: Yield (Proof), MPa		350
Tensile Strength: Yield (Proof), MPa		430

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		320

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

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		14

Otherwise Unclassified Properties

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

Density, g/cm³		7.8
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		3.3
Embodied Carbon, kg CO₂/kg material		6.0

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		84

Embodied Water, L/kg		160
Embodied Water, L/kg		250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		230
Resilience: Ultimate (Unit Rupture Work), MJ/m³		320

Resilience: Unit (Modulus of Resilience), kJ/m³		310
Resilience: Unit (Modulus of Resilience), kJ/m³		450

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

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

Strength to Weight: Axial, points		25
Strength to Weight: Axial, points		30

Strength to Weight: Bending, points		23
Strength to Weight: Bending, points		25

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0 to 0.015

Chromium (Cr), %		19.5 to 21.5
Chromium (Cr), %		31 to 35

Copper (Cu), %		0 to 1.0
Copper (Cu), %		0.3 to 1.2

Iron (Fe), %		63.2 to 71.9
Iron (Fe), %		25.7 to 37.9

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

Molybdenum (Mo), %		0.5 to 1.5
Molybdenum (Mo), %		0.5 to 2.0

Nickel (Ni), %		8.0 to 9.5
Nickel (Ni), %		30 to 33

Nitrogen (N), %		0.14 to 0.25
Nitrogen (N), %		0.35 to 0.6

Phosphorus (P), %		0 to 0.045
Phosphorus (P), %		0 to 0.020

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 0.5

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0 to 0.010