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AWS BNi-7 vs. Grade TDSiCr Steel

AWS BNi-7 belongs to the nickel alloys classification, while grade TDSiCr steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is grade TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 67
80
Tensile Strength: Ultimate (UTS), MPa 550
1950

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 890
1440
Melting Onset (Solidus), °C 890
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
2.2
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 8.8
1.5
Embodied Energy, MJ/kg 120
20
Embodied Water, L/kg 240
48

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 19
70
Strength to Weight: Bending, points 19
45
Thermal Shock Resistance, points 21
58

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0.5 to 0.6
Chromium (Cr), % 13 to 15
0.5 to 0.8
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 0.2
96.6 to 97.8
Manganese (Mn), % 0 to 0.040
0.5 to 0.9
Nickel (Ni), % 73.3 to 77.3
0
Phosphorus (P), % 9.7 to 10.5
0 to 0.025
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
1.2 to 1.6
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0