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ASTM A369 Grade FP92 vs. ACI-ASTM CD3MN Steel

Both ASTM A369 grade FP92 and ACI-ASTM CD3MN steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 78% 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 FP92 and the bottom bar is ACI-ASTM CD3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
29
Fatigue Strength, MPa 330
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 710
710
Tensile Strength: Yield (Proof), MPa 490
460

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 590
1060
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 40
50
Embodied Water, L/kg 89
160

Common Calculations

PREN (Pitting Resistance) 14
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 620
530
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 6.9
4.3
Thermal Shock Resistance, points 19
20

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0 to 0.030
Chromium (Cr), % 8.5 to 9.5
21 to 23.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 85.8 to 89.1
62.6 to 71.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.6
2.5 to 3.5
Nickel (Ni), % 0 to 0.4
4.5 to 6.5
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0.1 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0