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SAE-AISI 1008 Steel vs. ASTM A369 Grade FP9

Both SAE-AISI 1008 steel and ASTM A369 grade FP9 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 (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1008 steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22 to 33
20
Fatigue Strength, MPa 150 to 220
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 220 to 230
300
Tensile Strength: Ultimate (UTS), MPa 330 to 370
470
Tensile Strength: Yield (Proof), MPa 190 to 310
240

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 62
26
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 18
28
Embodied Water, L/kg 45
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
80
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
17
Strength to Weight: Bending, points 13 to 15
17
Thermal Diffusivity, mm2/s 17
6.9
Thermal Shock Resistance, points 10 to 12
13

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Iron (Fe), % 99.31 to 99.7
87.1 to 90.3
Manganese (Mn), % 0.3 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0.5 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030