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ASTM A369 Grade FP2 vs. SAE-AISI 4615 Steel

Both ASTM A369 grade FP2 and SAE-AISI 4615 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP2 and the bottom bar is SAE-AISI 4615 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
27
Fatigue Strength, MPa 160
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 270
310
Tensile Strength: Ultimate (UTS), MPa 430
480
Tensile Strength: Yield (Proof), MPa 240
350

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
47
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
3.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 20
22
Embodied Water, L/kg 50
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
17
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.13 to 0.18
Chromium (Cr), % 0.5 to 0.81
0
Iron (Fe), % 97.4 to 98.6
96.4 to 97.4
Manganese (Mn), % 0.3 to 0.61
0.45 to 0.65
Molybdenum (Mo), % 0.44 to 0.65
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040