EN 1.3558 Steel vs. Chromium 33

EN 1.3558 steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 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 EN 1.3558 steel and the bottom bar is chromium 33.

EN 1.3558 (X75WCrV18-4-1) High-Temperature Bearing Steel Chromium Alloy 33 (R20033)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		210
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.29
Poisson's Ratio		0.27

Shear Modulus, GPa		80
Shear Modulus, GPa		81

Tensile Strength: Ultimate (UTS), MPa		770
Tensile Strength: Ultimate (UTS), MPa		850

Thermal Properties

Latent Heat of Fusion, J/g		240
Latent Heat of Fusion, J/g		320

Specific Heat Capacity, J/kg-K		410
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		14

Otherwise Unclassified Properties

Base Metal Price, % relative		45
Base Metal Price, % relative		36

Density, g/cm³		9.3
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		8.4
Embodied Carbon, kg CO₂/kg material		6.0

Embodied Energy, MJ/kg		130
Embodied Energy, MJ/kg		84

Embodied Water, L/kg		90
Embodied Water, L/kg		250

Common Calculations

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		21
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		23
Strength to Weight: Axial, points		30

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		25

Thermal Shock Resistance, points		22
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		0.7 to 0.8
Carbon (C), %		0 to 0.015

Chromium (Cr), %		3.9 to 4.3
Chromium (Cr), %		31 to 35

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

Iron (Fe), %		73.7 to 77.6
Iron (Fe), %		25.7 to 37.9

Manganese (Mn), %		0 to 0.4
Manganese (Mn), %		0 to 2.0

Molybdenum (Mo), %		0 to 0.6
Molybdenum (Mo), %		0.5 to 2.0

Nickel (Ni), %		0
Nickel (Ni), %		30 to 33

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

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		0 to 0.020

Silicon (Si), %		0 to 0.4
Silicon (Si), %		0 to 0.5

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

Tungsten (W), %		17.5 to 19
Tungsten (W), %		0

Vanadium (V), %		1.0 to 1.3
Vanadium (V), %		0