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ACI-ASTM CN3M Steel vs. ASTM A369 Grade FP12

Both ACI-ASTM CN3M steel and ASTM A369 grade FP12 are iron alloys. They have 50% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3M steel and the bottom bar is ASTM A369 grade FP12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
20
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 500
470
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
430
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
45
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.8
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.9
1.6
Embodied Energy, MJ/kg 80
21
Embodied Water, L/kg 200
52

Common Calculations

PREN (Pitting Resistance) 38
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
81
Resilience: Unit (Modulus of Resilience), kJ/m3 89
160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.4
12
Thermal Shock Resistance, points 11
14

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 20 to 22
0.8 to 1.3
Iron (Fe), % 42.4 to 52.5
96.8 to 98.4
Manganese (Mn), % 0 to 2.0
0.3 to 0.61
Molybdenum (Mo), % 4.5 to 5.5
0.44 to 0.65
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025