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AWS ERTi-5 vs. Grade 300 Maraging Steel

AWS ERTi-5 belongs to the titanium alloys classification, while grade 300 maraging steel belongs to the iron alloys. There are 22 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 AWS ERTi-5 and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 10
6.5 to 18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 900
1030 to 2030
Tensile Strength: Yield (Proof), MPa 830
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1610
1480
Melting Onset (Solidus), °C 1560
1430
Specific Heat Capacity, J/kg-K 560
450
Thermal Expansion, µm/m-K 9.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
34
Density, g/cm3 4.4
8.2
Embodied Carbon, kg CO2/kg material 38
5.1
Embodied Energy, MJ/kg 610
68
Embodied Water, L/kg 200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
130 to 170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 56
35 to 68
Strength to Weight: Bending, points 46
28 to 43
Thermal Shock Resistance, points 63
31 to 62

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.050
0 to 0.030
Cobalt (Co), % 0
8.5 to 9.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
65 to 68.4
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
18 to 19
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 88.2 to 90.9
0.5 to 0.8
Vanadium (V), % 3.5 to 4.5
0
Zirconium (Zr), % 0
0 to 0.020