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SAE-AISI 6118 Steel vs. EN 1.1158 Steel

Both SAE-AISI 6118 steel and EN 1.1158 steel are iron alloys. Their average alloy composition is basically identical. 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 6118 steel and the bottom bar is EN 1.1158 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
23 to 24
Fatigue Strength, MPa 210
170 to 220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
300 to 320
Tensile Strength: Ultimate (UTS), MPa 470
470 to 500
Tensile Strength: Yield (Proof), MPa 290
240 to 310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
49
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
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 49
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
150 to 250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17 to 18
Strength to Weight: Bending, points 17
17 to 18
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14
15 to 16

Alloy Composition

Carbon (C), % 0.16 to 0.21
0.22 to 0.29
Chromium (Cr), % 0.5 to 0.7
0 to 0.4
Iron (Fe), % 97.8 to 98.6
97.6 to 99.38
Manganese (Mn), % 0.5 to 0.7
0.4 to 0.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0.1 to 0.15
0