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SAE-AISI 8625 Steel vs. ASTM A182 Grade F2

Both SAE-AISI 8625 steel and ASTM A182 grade F2 are iron alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical. 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 8625 steel and the bottom bar is ASTM A182 grade F2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
23
Fatigue Strength, MPa 240
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330
350
Tensile Strength: Ultimate (UTS), MPa 510
550
Tensile Strength: Yield (Proof), MPa 330
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
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 39
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 20
21
Embodied Water, L/kg 50
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 300
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 17
16

Alloy Composition

Carbon (C), % 0.23 to 0.28
0.050 to 0.21
Chromium (Cr), % 0.4 to 0.6
0.5 to 0.81
Iron (Fe), % 96.8 to 98
96.9 to 98.6
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.8
Molybdenum (Mo), % 0.15 to 0.25
0.44 to 0.65
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0.1 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.040