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R30556 Alloy vs. Titanium 6-6-2

R30556 alloy belongs to the iron alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30556 alloy and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 45
6.7 to 9.0
Fatigue Strength, MPa 320
590 to 670
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 81
44
Shear Strength, MPa 550
670 to 800
Tensile Strength: Ultimate (UTS), MPa 780
1140 to 1370
Tensile Strength: Yield (Proof), MPa 350
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
310
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1330
1560
Specific Heat Capacity, J/kg-K 450
540
Thermal Conductivity, W/m-K 11
5.5
Thermal Expansion, µm/m-K 15
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 70
40
Density, g/cm3 8.4
4.8
Embodied Carbon, kg CO2/kg material 8.7
29
Embodied Energy, MJ/kg 130
470
Embodied Water, L/kg 300
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
89 to 99
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
34
Strength to Weight: Axial, points 26
66 to 79
Strength to Weight: Bending, points 22
50 to 57
Thermal Diffusivity, mm2/s 2.9
2.1
Thermal Shock Resistance, points 18
75 to 90

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
5.0 to 6.0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 21 to 23
0
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 20.4 to 38.2
0.35 to 1.0
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 2.5 to 4.0
5.0 to 6.0
Nickel (Ni), % 19 to 22.5
0
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.2 to 0.8
0
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0.3 to 1.3
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
82.8 to 87.8
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0
Residuals, % 0
0 to 0.4