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SAE-AISI M50 Steel vs. AWS ERNiCrMo-4

SAE-AISI M50 steel belongs to the iron alloys classification, while AWS ERNiCrMo-4 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 ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
84
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
790

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1480
1590
Melting Onset (Solidus), °C 1440
1530
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
70
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 5.1
13
Embodied Energy, MJ/kg 74
170
Embodied Water, L/kg 83
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 26 to 80
24
Strength to Weight: Bending, points 23 to 49
21
Thermal Shock Resistance, points 21 to 66
22

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.020
Chromium (Cr), % 3.8 to 4.5
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 87 to 90.4
4.0 to 7.0
Manganese (Mn), % 0.15 to 0.45
0 to 1.0
Molybdenum (Mo), % 3.9 to 4.8
15 to 17
Nickel (Ni), % 0 to 0.3
50 to 63.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.6
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0.8 to 1.3
0 to 0.35
Residuals, % 0
0 to 0.5