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SAE-AISI M50 Steel vs. AWS E320

Both SAE-AISI M50 steel and AWS E320 are iron alloys. They have 45% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (5, 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 E320.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
620

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1440
1360
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
38
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 5.1
6.5
Embodied Energy, MJ/kg 74
91
Embodied Water, L/kg 83
220

Common Calculations

PREN (Pitting Resistance) 19
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 80
21
Strength to Weight: Bending, points 23 to 49
20
Thermal Shock Resistance, points 21 to 66
16

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.070
Chromium (Cr), % 3.8 to 4.5
19 to 21
Copper (Cu), % 0 to 0.25
3.0 to 4.0
Iron (Fe), % 87 to 90.4
31.8 to 43.5
Manganese (Mn), % 0.15 to 0.45
0.5 to 2.5
Molybdenum (Mo), % 3.9 to 4.8
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
32 to 36
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.8 to 1.3
0