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ASTM A182 Grade F5 vs. ASTM A387 Grade 2 Steel

Both ASTM A182 grade F5 and ASTM A387 grade 2 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 32 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 A182 grade F5 and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
25
Fatigue Strength, MPa 220
190 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 340
300 to 350
Tensile Strength: Ultimate (UTS), MPa 540
470 to 550
Tensile Strength: Yield (Proof), MPa 310
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
420
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
1.6
Embodied Energy, MJ/kg 24
20
Embodied Water, L/kg 69
50

Common Calculations

PREN (Pitting Resistance) 6.8
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
180 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
16 to 20
Strength to Weight: Bending, points 19
17 to 19
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 15
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.15
0.050 to 0.21
Chromium (Cr), % 4.0 to 6.0
0.5 to 0.8
Iron (Fe), % 91.5 to 95.3
97.1 to 98.3
Manganese (Mn), % 0.3 to 0.6
0.55 to 0.8
Molybdenum (Mo), % 0.44 to 0.65
0.45 to 0.6
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025