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ASTM A182 Grade F1 vs. SAE-AISI 81B45 Steel

Both ASTM A182 grade F1 and SAE-AISI 81B45 steel are iron alloys. They have a very high 99% 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 A182 grade F1 and the bottom bar is SAE-AISI 81B45 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
12 to 24
Fatigue Strength, MPa 220
250 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
340 to 400
Tensile Strength: Ultimate (UTS), MPa 540
540 to 670
Tensile Strength: Yield (Proof), MPa 310
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
40
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 48
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
77 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 260
320 to 840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
19 to 24
Strength to Weight: Bending, points 19
19 to 22
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 16
17 to 21

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.28
0.43 to 0.48
Chromium (Cr), % 0
0.35 to 0.55
Iron (Fe), % 97.7 to 98.8
97 to 98
Manganese (Mn), % 0.6 to 0.9
0.75 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0.080 to 0.15
Nickel (Ni), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.040