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SAE-AISI 1040 Steel vs. ASTM A182 Grade F1

Both SAE-AISI 1040 steel and ASTM A182 grade F1 are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1040 steel and the bottom bar is ASTM A182 grade F1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 20
22
Fatigue Strength, MPa 220 to 340
220
Poisson's Ratio 0.29
0.29
Reduction in Area, % 40 to 45
34
Shear Modulus, GPa 73
73
Shear Strength, MPa 350 to 390
340
Tensile Strength: Ultimate (UTS), MPa 570 to 640
540
Tensile Strength: Yield (Proof), MPa 320 to 530
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 51
50
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
100
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 23
19
Strength to Weight: Bending, points 19 to 21
19
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 18 to 20
16

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.28
Iron (Fe), % 98.6 to 99.03
97.7 to 98.8
Manganese (Mn), % 0.6 to 0.9
0.6 to 0.9
Molybdenum (Mo), % 0
0.44 to 0.65
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.045