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

Both SAE-AISI M33 steel and SAE-AISI T6 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 M33 steel and the bottom bar is SAE-AISI T6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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

Comparable Variants