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ACI-ASTM CG12 Steel vs. ASTM B817 Type I

ACI-ASTM CG12 steel belongs to the iron alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG12 steel and the bottom bar is ASTM B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 40
4.0 to 13
Fatigue Strength, MPa 190
360 to 520
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 550
770 to 960
Tensile Strength: Yield (Proof), MPa 220
700 to 860

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1040
340
Melting Completion (Liquidus), °C 1410
1600
Melting Onset (Solidus), °C 1370
1550
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
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
2310 to 3540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 20
48 to 60
Strength to Weight: Bending, points 19
42 to 49
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 12
54 to 68

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.12
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Chromium (Cr), % 20 to 23
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 60.3 to 70
0 to 0.4
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 10 to 13
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
87 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4