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ASTM A369 Grade FP12 vs. ACI-ASTM CD3MWCuN Steel

Both ASTM A369 grade FP12 and ACI-ASTM CD3MWCuN steel are iron alloys. They have 63% of their average alloy composition in common. There are 30 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 A369 grade FP12 and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
29
Fatigue Strength, MPa 170
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 470
790
Tensile Strength: Yield (Proof), MPa 250
500

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 430
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.2
Embodied Energy, MJ/kg 21
58
Embodied Water, L/kg 52
180

Common Calculations

PREN (Pitting Resistance) 2.8
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
200
Resilience: Unit (Modulus of Resilience), kJ/m3 160
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 14
22

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 0.8 to 1.3
24 to 26
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 96.8 to 98.4
56.6 to 65.3
Manganese (Mn), % 0.3 to 0.61
0 to 1.5
Molybdenum (Mo), % 0.44 to 0.65
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0
0.5 to 1.0