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ACI-ASTM CA40F Steel vs. ASTM A182 Grade F12 Class 2

Both ACI-ASTM CA40F steel and ASTM A182 grade F12 class 2 are iron alloys. They have 87% 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 ACI-ASTM CA40F steel and the bottom bar is ASTM A182 grade F12 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
22
Fatigue Strength, MPa 320
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
540
Tensile Strength: Yield (Proof), MPa 550
310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
430
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
43
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.6
Embodied Energy, MJ/kg 28
21
Embodied Water, L/kg 100
52

Common Calculations

PREN (Pitting Resistance) 14
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
100
Resilience: Unit (Modulus of Resilience), kJ/m3 790
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 7.2
12
Thermal Shock Resistance, points 28
16

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.1 to 0.2
Chromium (Cr), % 11.5 to 14
0.8 to 1.3
Iron (Fe), % 81.6 to 88.3
96.4 to 98.3
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.44 to 0.65
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0.1 to 0.6
Sulfur (S), % 0.2 to 0.4
0 to 0.040