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ASTM A369 Grade FP9 vs. ACI-ASTM CB7Cu-2 Steel

Both ASTM A369 grade FP9 and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 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 ASTM A369 grade FP9 and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
5.7 to 11
Fatigue Strength, MPa 160
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 470
960 to 1350
Tensile Strength: Yield (Proof), MPa 240
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
38
Embodied Water, L/kg 87
130

Common Calculations

PREN (Pitting Resistance) 12
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1510 to 3600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
34 to 48
Strength to Weight: Bending, points 17
28 to 35
Thermal Diffusivity, mm2/s 6.9
4.6
Thermal Shock Resistance, points 13
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.070
Chromium (Cr), % 8.0 to 10
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 87.1 to 90.3
73.6 to 79
Manganese (Mn), % 0.3 to 0.6
0 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.5 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030