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ASTM A369 Grade FP5 vs. SAE-AISI 4012 Steel

Both ASTM A369 grade FP5 and SAE-AISI 4012 steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 95% 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 4012 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23
Fatigue Strength, MPa 160
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 300
270
Tensile Strength: Ultimate (UTS), MPa 470
420
Tensile Strength: Yield (Proof), MPa 240
220

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
400
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
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 69
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
82
Resilience: Unit (Modulus of Resilience), kJ/m3 140
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
15
Strength to Weight: Bending, points 17
16
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 13
12

Alloy Composition

Carbon (C), % 0 to 0.15
0.090 to 0.14
Chromium (Cr), % 4.0 to 6.0
0
Iron (Fe), % 92.1 to 95.3
98.2 to 98.9
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