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SAE-AISI 1005 Steel vs. SAE-AISI 1140 Steel

Both SAE-AISI 1005 steel and SAE-AISI 1140 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 SAE-AISI 1005 steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
14 to 18
Fatigue Strength, MPa 190
230 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 210
370 to 420
Tensile Strength: Ultimate (UTS), MPa 330
600 to 700
Tensile Strength: Yield (Proof), MPa 260
340 to 570

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 45
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
310 to 870
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12
21 to 25
Strength to Weight: Bending, points 13
20 to 22
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 10
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.060
0.37 to 0.44
Iron (Fe), % 99.5 to 100
98.4 to 98.9
Manganese (Mn), % 0 to 0.35
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Sulfur (S), % 0 to 0.050
0.080 to 0.13