AWS BNi-8 vs. SAE-AISI 9255 Steel

AWS BNi-8 belongs to the nickel alloys classification, while SAE-AISI 9255 steel belongs to the iron 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 AWS BNi-8 and the bottom bar is SAE-AISI 9255 steel.

AWS BNi-8 (N99800) Filler Metal SAE-AISI 9255 (G92550) Silicon Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		180
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.32
Poisson's Ratio		0.29

Shear Modulus, GPa		67
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		570
Tensile Strength: Ultimate (UTS), MPa		680

Thermal Properties

Latent Heat of Fusion, J/g		390
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1010
Melting Completion (Liquidus), °C		1430

Melting Onset (Solidus), °C		980
Melting Onset (Solidus), °C		1390

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		46
Base Metal Price, % relative		2.0

Density, g/cm³		7.9
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		8.2
Embodied Carbon, kg CO₂/kg material		1.5

Embodied Energy, MJ/kg		120
Embodied Energy, MJ/kg		20

Embodied Water, L/kg		220
Embodied Water, L/kg		46

Common Calculations

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		13

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

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		22

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		21

Alloy Composition

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

Carbon (C), %		0 to 0.060
Carbon (C), %		0.51 to 0.59

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

Copper (Cu), %		4.0 to 5.0
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		96.2 to 97

Manganese (Mn), %		21.5 to 24.5
Manganese (Mn), %		0.7 to 1.0

Nickel (Ni), %		61.6 to 68.5
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.035

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

Silicon (Si), %		6.0 to 8.0
Silicon (Si), %		1.8 to 2.2

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.040

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

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

Residuals, %		0 to 0.5
Residuals, %		0