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ASTM A182 Grade F12 Class 2 vs. ACI-ASTM CT15C Steel

Both ASTM A182 grade F12 class 2 and ACI-ASTM CT15C steel are iron alloys. They have 47% of their average alloy composition in common. There are 31 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 ASTM A182 grade F12 class 2 and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
23
Fatigue Strength, MPa 220
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 540
500
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 430
1080
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.6
6.1
Embodied Energy, MJ/kg 21
88
Embodied Water, L/kg 52
190

Common Calculations

PREN (Pitting Resistance) 2.8
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
90
Resilience: Unit (Modulus of Resilience), kJ/m3 260
93
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 16
12

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.050 to 0.15
Chromium (Cr), % 0.8 to 1.3
19 to 21
Iron (Fe), % 96.4 to 98.3
40.3 to 49.2
Manganese (Mn), % 0.3 to 0.8
0.15 to 1.5
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.1 to 0.6
0.15 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.030