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SAE-AISI T6 Steel vs. SAE-AISI M33 Steel

Both SAE-AISI T6 steel and SAE-AISI M33 steel are iron alloys. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI T6 steel and the bottom bar is SAE-AISI M33 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 880 to 2150
810 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1830
1550
Melting Onset (Solidus), °C 1770
1500
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 18
20
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
32
Density, g/cm3 9.5
8.2
Embodied Carbon, kg CO2/kg material 11
7.7
Embodied Energy, MJ/kg 170
110
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 39
38
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 26 to 63
27 to 75
Strength to Weight: Bending, points 21 to 39
24 to 46
Thermal Diffusivity, mm2/s 4.7
5.5
Thermal Shock Resistance, points 26 to 64
25 to 68

Alloy Composition

Carbon (C), % 0.75 to 0.85
0.85 to 0.92
Chromium (Cr), % 4.0 to 4.8
3.5 to 4.0
Cobalt (Co), % 11 to 13
7.8 to 8.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 55.9 to 63.5
71.4 to 76.3
Manganese (Mn), % 0.2 to 0.4
0.15 to 0.4
Molybdenum (Mo), % 0.4 to 1.0
9.0 to 10
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
0.15 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 18.5 to 21
1.3 to 2.1
Vanadium (V), % 1.5 to 2.1
1.0 to 1.4

Comparable Variants