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ACI-ASTM CG12 Steel vs. AWS ERTi-5

ACI-ASTM CG12 steel belongs to the iron alloys classification, while AWS ERTi-5 belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG12 steel and the bottom bar is AWS ERTi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
10
Fatigue Strength, MPa 190
470
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 550
900
Tensile Strength: Yield (Proof), MPa 220
830

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1040
340
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 3.3
38
Embodied Energy, MJ/kg 48
610
Embodied Water, L/kg 160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
87
Resilience: Unit (Modulus of Resilience), kJ/m3 120
3250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 20
56
Strength to Weight: Bending, points 19
46
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 12
63

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.12
0 to 0.050
Chromium (Cr), % 20 to 23
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 60.3 to 70
0 to 0.22
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 10 to 13
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
88.2 to 90.9
Vanadium (V), % 0
3.5 to 4.5