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AWS ERTi-5 vs. SAE-AISI M30 Steel

AWS ERTi-5 belongs to the titanium alloys classification, while SAE-AISI M30 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is SAE-AISI M30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 900
800 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1610
1550
Melting Onset (Solidus), °C 1560
1500
Specific Heat Capacity, J/kg-K 560
450
Thermal Conductivity, W/m-K 7.1
24
Thermal Expansion, µm/m-K 9.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
26
Density, g/cm3 4.4
8.2
Embodied Carbon, kg CO2/kg material 38
7.2
Embodied Energy, MJ/kg 610
100
Embodied Water, L/kg 200
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 56
27 to 74
Strength to Weight: Bending, points 46
24 to 46
Thermal Diffusivity, mm2/s 2.9
6.6
Thermal Shock Resistance, points 63
25 to 67

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0.75 to 0.85
Chromium (Cr), % 0
3.5 to 4.3
Cobalt (Co), % 0
4.5 to 5.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
75.2 to 80.9
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
7.8 to 9.0
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 88.2 to 90.9
0
Tungsten (W), % 0
1.3 to 2.3
Vanadium (V), % 3.5 to 4.5
1.0 to 1.4