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ASTM A369 Grade FP92 vs. SAE-AISI 4140 Steel

Both ASTM A369 grade FP92 and SAE-AISI 4140 steel are iron alloys. They have 89% 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 FP92 and the bottom bar is SAE-AISI 4140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
200 to 310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
11 to 26
Fatigue Strength, MPa 330
360 to 650
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 440
410 to 660
Tensile Strength: Ultimate (UTS), MPa 710
690 to 1080
Tensile Strength: Yield (Proof), MPa 490
590 to 990

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 590
420
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
43
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
20
Embodied Water, L/kg 89
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
74 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 620
920 to 2590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
25 to 38
Strength to Weight: Bending, points 22
22 to 30
Thermal Diffusivity, mm2/s 6.9
12
Thermal Shock Resistance, points 19
20 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.38 to 0.43
Chromium (Cr), % 8.5 to 9.5
0.8 to 1.1
Iron (Fe), % 85.8 to 89.1
96.8 to 97.8
Manganese (Mn), % 0.3 to 0.6
0.75 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0.15 to 0.25
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0