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SAE-AISI 1005 Steel vs. SAE-AISI 6118 Steel

Both SAE-AISI 1005 steel and SAE-AISI 6118 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 1005 steel and the bottom bar is SAE-AISI 6118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
23
Fatigue Strength, MPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 210
300
Tensile Strength: Ultimate (UTS), MPa 330
470
Tensile Strength: Yield (Proof), MPa 260
290

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
45
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 45
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12
17
Strength to Weight: Bending, points 13
17
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 10
14

Alloy Composition

Carbon (C), % 0 to 0.060
0.16 to 0.21
Chromium (Cr), % 0
0.5 to 0.7
Iron (Fe), % 99.5 to 100
97.8 to 98.6
Manganese (Mn), % 0 to 0.35
0.5 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
Vanadium (V), % 0
0.1 to 0.15