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SAE-AISI M50 Steel vs. AWS BNi-5a

SAE-AISI M50 steel belongs to the iron alloys classification, while AWS BNi-5a belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is AWS BNi-5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
480

Thermal Properties

Latent Heat of Fusion, J/g 260
420
Melting Completion (Liquidus), °C 1480
1150
Melting Onset (Solidus), °C 1440
1070
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
55
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.1
9.0
Embodied Energy, MJ/kg 74
130
Embodied Water, L/kg 83
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 80
17
Strength to Weight: Bending, points 23 to 49
17
Thermal Shock Resistance, points 21 to 66
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.0 to 1.5
Carbon (C), % 0.78 to 0.88
0 to 0.1
Chromium (Cr), % 3.8 to 4.5
18.5 to 19.5
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87 to 90.4
0 to 0.5
Manganese (Mn), % 0.15 to 0.45
0
Molybdenum (Mo), % 3.9 to 4.8
0
Nickel (Ni), % 0 to 0.3
70.1 to 73.5
Phosphorus (P), % 0 to 0.030
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0.2 to 0.6
7.0 to 7.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0.8 to 1.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5