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ASTM B817 Type II vs. SAE-AISI M33 Steel

ASTM B817 type II belongs to the titanium alloys classification, while SAE-AISI M33 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is SAE-AISI M33 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 900 to 960
810 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Melting Completion (Liquidus), °C 1580
1550
Melting Onset (Solidus), °C 1530
1500
Specific Heat Capacity, J/kg-K 550
440
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
32
Density, g/cm3 4.6
8.2
Embodied Carbon, kg CO2/kg material 40
7.7
Embodied Energy, MJ/kg 650
110
Embodied Water, L/kg 220
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
27 to 75
Strength to Weight: Bending, points 45 to 47
24 to 46
Thermal Shock Resistance, points 62 to 66
25 to 68

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.85 to 0.92
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0.35 to 1.0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
71.4 to 76.3
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
9.0 to 10
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.15 to 0.5
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Tungsten (W), % 0
1.3 to 2.1
Vanadium (V), % 5.0 to 6.0
1.0 to 1.4
Residuals, % 0 to 0.4
0