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ASTM B817 Type I vs. SAE-AISI D5 Steel

ASTM B817 type I belongs to the titanium alloys classification, while SAE-AISI D5 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type I and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.0 to 13
5.4 to 14
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 770 to 960
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1600
1430
Melting Onset (Solidus), °C 1550
1390
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
27
Thermal Expansion, µm/m-K 9.6
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.4
7.7
Embodied Carbon, kg CO2/kg material 38
3.5
Embodied Energy, MJ/kg 610
51
Embodied Water, L/kg 200
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 48 to 60
28 to 73
Strength to Weight: Bending, points 42 to 49
24 to 46
Thermal Diffusivity, mm2/s 2.9
7.4
Thermal Shock Resistance, points 54 to 68
26 to 67

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
1.4 to 1.6
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
77.9 to 84.4
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
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 to 0.6
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0 to 1.0
Residuals, % 0 to 0.4
0