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SAE-AISI T15 Steel vs. SAE-AISI M50 Steel

Both SAE-AISI T15 steel and SAE-AISI M50 steel are iron alloys. They have 78% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T15 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 76
75
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1690
1480
Melting Onset (Solidus), °C 1640
1440
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
35
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 43
9.0
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 16
5.1
Embodied Energy, MJ/kg 250
74
Embodied Water, L/kg 140
83

Common Calculations

PREN (Pitting Resistance) 27
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
26 to 80
Strength to Weight: Bending, points 22 to 43
23 to 49
Thermal Diffusivity, mm2/s 5.6
9.7
Thermal Shock Resistance, points 26 to 70
21 to 66

Alloy Composition

Carbon (C), % 1.5 to 1.6
0.78 to 0.88
Chromium (Cr), % 3.8 to 5.0
3.8 to 4.5
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 67.5 to 73.5
87 to 90.4
Manganese (Mn), % 0.15 to 0.4
0.15 to 0.45
Molybdenum (Mo), % 0 to 1.0
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), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0.8 to 1.3

Comparable Variants