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SAE-AISI M48 Steel vs. SAE-AISI M50 Steel

Both SAE-AISI M48 steel and SAE-AISI M50 steel are iron alloys. They have 78% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M48 steel and the bottom bar is SAE-AISI M50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 890 to 2390
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1670
1480
Melting Onset (Solidus), °C 1620
1440
Specific Heat Capacity, J/kg-K 420
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 48
9.0
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 13
5.1
Embodied Energy, MJ/kg 190
74
Embodied Water, L/kg 160
83

Common Calculations

PREN (Pitting Resistance) 37
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 28 to 76
26 to 80
Strength to Weight: Bending, points 23 to 45
23 to 49
Thermal Shock Resistance, points 26 to 71
21 to 66

Alloy Composition

Carbon (C), % 1.4 to 1.5
0.78 to 0.88
Chromium (Cr), % 3.5 to 4.0
3.8 to 4.5
Cobalt (Co), % 8.0 to 10
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 63.8 to 69.8
87 to 90.4
Manganese (Mn), % 0.15 to 0.4
0.15 to 0.45
Molybdenum (Mo), % 4.8 to 5.5
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), % 0.15 to 0.4
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 9.5 to 10.5
0
Vanadium (V), % 2.8 to 3.3
0.8 to 1.3

Comparable Variants