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ASTM A369 Grade FP22 vs. ACI-ASTM CA6N Steel

Both ASTM A369 grade FP22 and ACI-ASTM CA6N steel are iron alloys. They have 84% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP22 and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17
Fatigue Strength, MPa 160
640
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Tensile Strength: Ultimate (UTS), MPa 470
1080
Tensile Strength: Yield (Proof), MPa 240
1060

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 460
740
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
23
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.5
Embodied Energy, MJ/kg 23
35
Embodied Water, L/kg 58
110

Common Calculations

PREN (Pitting Resistance) 5.5
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
180
Resilience: Unit (Modulus of Resilience), kJ/m3 150
2900
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 11
6.1
Thermal Shock Resistance, points 14
40

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.060
Chromium (Cr), % 1.9 to 2.6
10.5 to 12.5
Iron (Fe), % 95 to 96.9
77.9 to 83.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.87 to 1.1
0
Nickel (Ni), % 0
6.0 to 8.0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020