EN 1.7231 Steel vs. AWS BNi-6

EN 1.7231 steel belongs to the iron alloys classification, while AWS BNi-6 belongs to the nickel alloys. There are 19 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 1.7231 steel and the bottom bar is AWS BNi-6.

EN 1.7231 (G42CrMo4) Cast Steel AWS BNi-6 (N99700) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		160

Poisson's Ratio		0.29
Poisson's Ratio		0.31

Shear Modulus, GPa		73
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		790 to 930
Tensile Strength: Ultimate (UTS), MPa		450

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		880

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		880

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		9.8

Otherwise Unclassified Properties

Base Metal Price, % relative		2.5
Base Metal Price, % relative		55

Density, g/cm³		7.8
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		1.5
Embodied Carbon, kg CO₂/kg material		9.4

Embodied Energy, MJ/kg		20
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		51
Embodied Water, L/kg		210

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		11

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		28 to 33
Strength to Weight: Axial, points		15

Strength to Weight: Bending, points		24 to 27
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		23 to 27
Thermal Shock Resistance, points		20

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.050

Carbon (C), %		0.38 to 0.45
Carbon (C), %		0 to 0.060

Chromium (Cr), %		0.8 to 1.2
Chromium (Cr), %		0

Cobalt (Co), %		0
Cobalt (Co), %		0 to 0.1

Iron (Fe), %		96.4 to 98.1
Iron (Fe), %		0

Manganese (Mn), %		0.6 to 1.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0.15 to 0.3
Molybdenum (Mo), %		0

Nickel (Ni), %		0
Nickel (Ni), %		87.2 to 90

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		10 to 12

Selenium (Se), %		0
Selenium (Se), %		0 to 0.0050

Silicon (Si), %		0 to 0.6
Silicon (Si), %		0

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.020

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.050

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.050

Residuals, %		0
Residuals, %		0 to 0.5