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R30556 Alloy vs. Titanium 4-4-2

R30556 alloy belongs to the iron alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30556 alloy and the bottom bar is titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 45
10
Fatigue Strength, MPa 320
590 to 620
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 81
42
Shear Strength, MPa 550
690 to 750
Tensile Strength: Ultimate (UTS), MPa 780
1150 to 1250
Tensile Strength: Yield (Proof), MPa 350
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
410
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
6.7
Thermal Expansion, µm/m-K 15
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
39
Density, g/cm3 8.4
4.7
Embodied Carbon, kg CO2/kg material 8.7
30
Embodied Energy, MJ/kg 130
480
Embodied Water, L/kg 300
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 290
4700 to 5160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
34
Strength to Weight: Axial, points 26
68 to 74
Strength to Weight: Bending, points 22
52 to 55
Thermal Diffusivity, mm2/s 2.9
2.6
Thermal Shock Resistance, points 18
86 to 93

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
3.0 to 5.0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0 to 0.080
Chromium (Cr), % 21 to 23
0
Cobalt (Co), % 16 to 21
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 20.4 to 38.2
0 to 0.2
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 2.5 to 4.0
3.0 to 5.0
Nickel (Ni), % 19 to 22.5
0
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.2 to 0.8
0.3 to 0.7
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
85.8 to 92.2
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0
Residuals, % 0
0 to 0.4