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AWS BNi-5 vs. EN 1.7729 Steel

AWS BNi-5 belongs to the nickel alloys classification, while EN 1.7729 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5 and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 470
910

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Melting Completion (Liquidus), °C 1140
1470
Melting Onset (Solidus), °C 1080
1430
Specific Heat Capacity, J/kg-K 510
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
3.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 8.9
3.3
Embodied Energy, MJ/kg 130
49
Embodied Water, L/kg 260
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 17
27
Thermal Shock Resistance, points 15
27

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0 to 0.030
0.0010 to 0.010
Carbon (C), % 0 to 0.060
0.17 to 0.23
Chromium (Cr), % 18.5 to 19.5
0.9 to 1.2
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0
94.8 to 97
Manganese (Mn), % 0
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 69.1 to 71.8
0 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 9.8 to 10.5
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.050
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0