Chromium 33 vs. AWS ENiCu-7

Chromium 33 belongs to the otherwise unclassified metals classification, while AWS ENiCu-7 belongs to the nickel alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is chromium 33 and the bottom bar is AWS ENiCu-7.

Chromium Alloy 33 (R20033)AWS ENiCu-7 (W84190) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		160

Elongation at Break, %		45
Elongation at Break, %		34

Poisson's Ratio		0.27
Poisson's Ratio		0.32

Shear Modulus, GPa		81
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		850
Tensile Strength: Ultimate (UTS), MPa		550

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		280

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		430

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

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		50

Density, g/cm³		7.9
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		6.0
Embodied Carbon, kg CO₂/kg material		8.0

Embodied Energy, MJ/kg		84
Embodied Energy, MJ/kg		110

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

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		10

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

Strength to Weight: Axial, points		30
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		25
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		21
Thermal Shock Resistance, points		18

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.75

Carbon (C), %		0 to 0.015
Carbon (C), %		0 to 0.1

Chromium (Cr), %		31 to 35
Chromium (Cr), %		0

Copper (Cu), %		0.3 to 1.2
Copper (Cu), %		20.6 to 38

Iron (Fe), %		25.7 to 37.9
Iron (Fe), %		0 to 2.5

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0 to 4.0

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

Nickel (Ni), %		30 to 33
Nickel (Ni), %		62 to 69

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

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

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0 to 1.5

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

Titanium (Ti), %		0
Titanium (Ti), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5