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ASTM A369 Grade FP5 vs. SAE-AISI 4150 Steel

Both ASTM A369 grade FP5 and SAE-AISI 4150 steel are iron alloys. They have a very high 96% 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 FP5 and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
12 to 20
Fatigue Strength, MPa 160
260 to 780
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 300
410 to 800
Tensile Strength: Ultimate (UTS), MPa 470
660 to 1310
Tensile Strength: Yield (Proof), MPa 240
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
20
Embodied Water, L/kg 69
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
24 to 47
Strength to Weight: Bending, points 17
22 to 34
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 13
19 to 39

Alloy Composition

Carbon (C), % 0 to 0.15
0.48 to 0.53
Chromium (Cr), % 4.0 to 6.0
0.8 to 1.1
Iron (Fe), % 92.1 to 95.3
96.7 to 97.7
Manganese (Mn), % 0.3 to 0.6
0.75 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040