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SAE-AISI H25 Steel vs. Titanium 6-7

SAE-AISI H25 steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H25 steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 79
45
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
1020

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Melting Completion (Liquidus), °C 1750
1700
Melting Onset (Solidus), °C 1700
1650
Specific Heat Capacity, J/kg-K 420
520
Thermal Expansion, µm/m-K 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
75
Density, g/cm3 9.1
5.1
Embodied Carbon, kg CO2/kg material 6.2
34
Embodied Energy, MJ/kg 93
540
Embodied Water, L/kg 83
190

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
32
Strength to Weight: Axial, points 22 to 50
56
Strength to Weight: Bending, points 20 to 34
44
Thermal Shock Resistance, points 22 to 49
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.22 to 0.32
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 77.2 to 81.3
0 to 0.25
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.3
0
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 0.030
0
Silicon (Si), % 0.15 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0