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ACI-ASTM CG6MMN Steel vs. Grade 37 Titanium

ACI-ASTM CG6MMN steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 25 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 ACI-ASTM CG6MMN steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
22
Fatigue Strength, MPa 260
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 670
390
Tensile Strength: Yield (Proof), MPa 320
250

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1080
310
Melting Completion (Liquidus), °C 1420
1650
Melting Onset (Solidus), °C 1380
1600
Specific Heat Capacity, J/kg-K 480
550
Thermal Expansion, µm/m-K 17
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 22
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 4.8
31
Embodied Energy, MJ/kg 68
500
Embodied Water, L/kg 180
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
76
Resilience: Unit (Modulus of Resilience), kJ/m3 260
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
26
Thermal Shock Resistance, points 14
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 20.5 to 23.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 51.9 to 62.1
0 to 0.3
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
96.9 to 99
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.4