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SAE-AISI M52 Steel vs. SAE-AISI M50 Steel

Both SAE-AISI M52 steel and SAE-AISI M50 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI M52 steel and the bottom bar is SAE-AISI M50 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 75
75
Tensile Strength: Ultimate (UTS), MPa 710 to 2280
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1510
1480
Melting Onset (Solidus), °C 1470
1440
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 31
35
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
5.1
Embodied Energy, MJ/kg 110
74
Embodied Water, L/kg 89
83

Common Calculations

PREN (Pitting Resistance) 20
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 80
26 to 80
Strength to Weight: Bending, points 22 to 49
23 to 49
Thermal Diffusivity, mm2/s 8.4
9.7
Thermal Shock Resistance, points 21 to 67
21 to 66

Alloy Composition

Carbon (C), % 0.85 to 1.0
0.78 to 0.88
Chromium (Cr), % 3.5 to 4.3
3.8 to 4.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 84.4 to 88.9
87 to 90.4
Manganese (Mn), % 0.15 to 0.45
0.15 to 0.45
Molybdenum (Mo), % 4.0 to 4.9
3.9 to 4.8
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.6
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.75 to 1.5
0
Vanadium (V), % 1.7 to 2.3
0.8 to 1.3

Comparable Variants