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AWS ERTi-12 vs. SAE-AISI M3 Class 1 Steel

AWS ERTi-12 belongs to the titanium alloys classification, while SAE-AISI M3 class 1 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-12 and the bottom bar is SAE-AISI M3 class 1 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 41
77
Tensile Strength: Ultimate (UTS), MPa 480
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1670
1610
Melting Onset (Solidus), °C 1620
1570
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
26
Thermal Expansion, µm/m-K 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
25
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 31
10
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
100

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 30
26 to 72
Strength to Weight: Bending, points 30
22 to 44
Thermal Diffusivity, mm2/s 8.7
7.2
Thermal Shock Resistance, points 37
24 to 67

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
76.9 to 82.9
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0.2 to 0.4
4.8 to 6.5
Nickel (Ni), % 0.060 to 0.090
0 to 0.3
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
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), % 99.147 to 99.66
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.3 to 2.8