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ASTM A369 Grade FP12 vs. ACI-ASTM CA15M Steel

Both ASTM A369 grade FP12 and ACI-ASTM CA15M steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 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 CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
20
Fatigue Strength, MPa 170
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 470
690
Tensile Strength: Yield (Proof), MPa 250
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
760
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
7.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.1
Embodied Energy, MJ/kg 21
29
Embodied Water, L/kg 52
100

Common Calculations

PREN (Pitting Resistance) 2.8
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 12
7.2
Thermal Shock Resistance, points 14
25

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.15
Chromium (Cr), % 0.8 to 1.3
11.5 to 14
Iron (Fe), % 96.8 to 98.4
82.1 to 88.4
Manganese (Mn), % 0.3 to 0.61
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0.15 to 1.0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.65
Sulfur (S), % 0 to 0.025
0 to 0.040