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SAE-AISI 5140 Steel vs. AWS BNi-5

SAE-AISI 5140 steel belongs to the iron alloys classification, while AWS BNi-5 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 SAE-AISI 5140 steel and the bottom bar is AWS BNi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 560 to 970
470

Thermal Properties

Latent Heat of Fusion, J/g 250
470
Melting Completion (Liquidus), °C 1460
1140
Melting Onset (Solidus), °C 1420
1080
Specific Heat Capacity, J/kg-K 470
510
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
55
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
8.9
Embodied Energy, MJ/kg 19
130
Embodied Water, L/kg 49
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 34
17
Strength to Weight: Bending, points 19 to 28
17
Thermal Shock Resistance, points 16 to 29
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0 to 0.030
Carbon (C), % 0.38 to 0.43
0 to 0.060
Chromium (Cr), % 0.7 to 0.9
18.5 to 19.5
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 97.3 to 98.1
0
Manganese (Mn), % 0.7 to 0.9
0
Nickel (Ni), % 0
69.1 to 71.8
Phosphorus (P), % 0 to 0.035
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.15 to 0.35
9.8 to 10.5
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5