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ASTM A36 Carbon Steel vs. ASTM A369 Grade FP2

Both ASTM A36 carbon steel and ASTM A369 grade FP2 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 A36 carbon steel and the bottom bar is ASTM A369 grade FP2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
20
Fatigue Strength, MPa 200
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
270
Tensile Strength: Ultimate (UTS), MPa 480
430
Tensile Strength: Yield (Proof), MPa 290
240

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
49
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 14
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 44
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
75
Resilience: Unit (Modulus of Resilience), kJ/m3 220
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
15
Strength to Weight: Bending, points 17
16
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.26
0.1 to 0.2
Chromium (Cr), % 0
0.5 to 0.81
Iron (Fe), % 99.25 to 100
97.4 to 98.6
Manganese (Mn), % 0
0.3 to 0.61
Molybdenum (Mo), % 0
0.44 to 0.65
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.4
0.1 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.025