EN 1.7701 Steel vs. Chromium 33

EN 1.7701 steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have a modest 34% 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 (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.7701 steel and the bottom bar is chromium 33.

EN 1.7701 (52CrMoV4) Chromium-Molybdenum Steel Chromium Alloy 33 (R20033)

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.27

Shear Modulus, GPa		73
Shear Modulus, GPa		81

Tensile Strength: Ultimate (UTS), MPa		670 to 2010
Tensile Strength: Ultimate (UTS), MPa		850

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		320

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

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		14

Otherwise Unclassified Properties

Base Metal Price, % relative		2.6
Base Metal Price, % relative		36

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

Embodied Carbon, kg CO₂/kg material		1.9
Embodied Carbon, kg CO₂/kg material		6.0

Embodied Energy, MJ/kg		26
Embodied Energy, MJ/kg		84

Embodied Water, L/kg		52
Embodied Water, L/kg		250

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		24 to 71
Strength to Weight: Axial, points		30

Strength to Weight: Bending, points		22 to 45
Strength to Weight: Bending, points		25

Thermal Shock Resistance, points		20 to 59
Thermal Shock Resistance, points		21

Alloy Composition

Carbon (C), %		0.48 to 0.56
Carbon (C), %		0 to 0.015

Chromium (Cr), %		0.9 to 1.2
Chromium (Cr), %		31 to 35

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

Iron (Fe), %		96.2 to 97.7
Iron (Fe), %		25.7 to 37.9

Manganese (Mn), %		0.7 to 1.1
Manganese (Mn), %		0 to 2.0

Molybdenum (Mo), %		0.15 to 0.3
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 0.025
Sulfur (S), %		0 to 0.010

Vanadium (V), %		0.1 to 0.2
Vanadium (V), %		0