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ASTM A36 Carbon Steel vs. ASTM A369 Grade FP9

Both ASTM A36 carbon 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 (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
20
Fatigue Strength, MPa 200
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 300
300
Tensile Strength: Ultimate (UTS), MPa 480
470
Tensile Strength: Yield (Proof), MPa 290
240

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
26
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
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 44
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
80
Resilience: Unit (Modulus of Resilience), kJ/m3 220
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.26
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Iron (Fe), % 99.25 to 100
87.1 to 90.3
Manganese (Mn), % 0
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 to 0.4
0.5 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030