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SAE-AISI T4 Steel vs. SAE-AISI M50 Steel

Both SAE-AISI T4 steel and SAE-AISI M50 steel are iron alloys. They have 77% 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 T4 steel and the bottom bar is SAE-AISI M50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
720 to 2250

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1810
1480
Melting Onset (Solidus), °C 1750
1440
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 21
35
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.0
Density, g/cm3 9.4
7.9
Embodied Carbon, kg CO2/kg material 8.5
5.1
Embodied Energy, MJ/kg 130
74
Embodied Water, L/kg 120
83

Common Calculations

PREN (Pitting Resistance) 37
19
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 24 to 64
26 to 80
Strength to Weight: Bending, points 20 to 39
23 to 49
Thermal Diffusivity, mm2/s 5.4
9.7
Thermal Shock Resistance, points 24 to 64
21 to 66

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.78 to 0.88
Chromium (Cr), % 3.8 to 4.5
3.8 to 4.5
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 66.3 to 72.3
87 to 90.4
Manganese (Mn), % 0.1 to 0.4
0.15 to 0.45
Molybdenum (Mo), % 0.4 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), % 0.2 to 0.4
0.2 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0.8 to 1.3

Comparable Variants