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AWS ERTi-12 vs. Grade 350 Maraging Steel

AWS ERTi-12 belongs to the titanium alloys classification, while grade 350 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-12 and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 12
4.1 to 18
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 41
75
Tensile Strength: Ultimate (UTS), MPa 480
1140 to 2420
Tensile Strength: Yield (Proof), MPa 340
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1670
1470
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 540
450
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
39
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 31
5.6
Embodied Energy, MJ/kg 510
74
Embodied Water, L/kg 110
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
98 to 190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 30
38 to 82
Strength to Weight: Bending, points 30
29 to 49
Thermal Shock Resistance, points 37
35 to 74

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0 to 0.030
Cobalt (Co), % 0
11.5 to 12.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
61.2 to 64.6
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0.2 to 0.4
4.6 to 5.2
Nickel (Ni), % 0.060 to 0.090
18 to 19
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.147 to 99.66
1.3 to 1.6
Zirconium (Zr), % 0
0 to 0.020