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ASTM A369 Grade FP1 vs. SAE-AISI 1144 Steel

Both ASTM A369 grade FP1 and SAE-AISI 1144 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 FP1 and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
11 to 17
Fatigue Strength, MPa 160
280 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 270
460 to 510
Tensile Strength: Ultimate (UTS), MPa 430
750 to 840
Tensile Strength: Yield (Proof), MPa 240
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 47
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
480 to 1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
27 to 30
Strength to Weight: Bending, points 16
23 to 25
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 13
22 to 24

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.4 to 0.48
Iron (Fe), % 97.8 to 99.06
97.5 to 98
Manganese (Mn), % 0.3 to 0.8
1.4 to 1.7
Molybdenum (Mo), % 0.44 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0
Sulfur (S), % 0 to 0.025
0.24 to 0.33