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SAE-AISI 1006 Steel vs. SAE-AISI 8740 Steel

Both SAE-AISI 1006 steel and SAE-AISI 8740 steel 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 SAE-AISI 1006 steel and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 94 to 100
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22 to 33
11 to 23
Fatigue Strength, MPa 140 to 210
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 230
370 to 400
Tensile Strength: Ultimate (UTS), MPa 340 to 370
580 to 670
Tensile Strength: Yield (Proof), MPa 180 to 300
380 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 45
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 95
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 86 to 240
390 to 850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
20 to 24
Strength to Weight: Bending, points 14 to 15
20 to 22
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 10 to 11
17 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0.38 to 0.43
Chromium (Cr), % 0
0.4 to 0.6
Iron (Fe), % 99.43 to 99.75
96.5 to 97.7
Manganese (Mn), % 0.25 to 0.4
0.75 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040

Comparable Variants