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ASTM B817 Type II vs. SAE-AISI 1090 Steel

ASTM B817 type II belongs to the titanium alloys classification, while SAE-AISI 1090 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 3.0 to 13
11
Fatigue Strength, MPa 390 to 530
320 to 380
Poisson's Ratio 0.32
0.29
Reduction in Area, % 4.0 to 13
28 to 45
Shear Modulus, GPa 40
72
Tensile Strength: Ultimate (UTS), MPa 900 to 960
790 to 950
Tensile Strength: Yield (Proof), MPa 780 to 900
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 350
400
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1410
Specific Heat Capacity, J/kg-K 550
470
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 4.6
7.8
Embodied Carbon, kg CO2/kg material 40
1.4
Embodied Energy, MJ/kg 650
19
Embodied Water, L/kg 220
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
28 to 34
Strength to Weight: Bending, points 45 to 47
24 to 27
Thermal Shock Resistance, points 62 to 66
25 to 31

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.85 to 1.0
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
98 to 98.6
Manganese (Mn), % 0
0.6 to 0.9
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0