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SAE-AISI 6150 Steel vs. Titanium 6-7

SAE-AISI 6150 steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium 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 SAE-AISI 6150 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 15 to 23
11
Fatigue Strength, MPa 300 to 750
530
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
45
Shear Strength, MPa 400 to 730
610
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
1020
Tensile Strength: Yield (Proof), MPa 420 to 1160
900

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 420
300
Melting Completion (Liquidus), °C 1460
1700
Melting Onset (Solidus), °C 1410
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 12 to 13
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
75
Density, g/cm3 7.8
5.1
Embodied Carbon, kg CO2/kg material 2.0
34
Embodied Energy, MJ/kg 28
540
Embodied Water, L/kg 51
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 22 to 43
56
Strength to Weight: Bending, points 21 to 32
44
Thermal Shock Resistance, points 20 to 38
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.48 to 0.53
0 to 0.080
Chromium (Cr), % 0.8 to 1.1
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 96.7 to 97.7
0 to 0.25
Manganese (Mn), % 0.7 to 0.9
0
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Vanadium (V), % 0.15 to 0.3
0