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EN 1.6580 Steel vs. SAE-AISI 8115 Steel

Both EN 1.6580 steel and SAE-AISI 8115 steel are iron alloys. They have a very high 96% 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 EN 1.6580 steel and the bottom bar is SAE-AISI 8115 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 350
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 19
15
Fatigue Strength, MPa 310 to 610
320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 450 to 700
370
Tensile Strength: Ultimate (UTS), MPa 720 to 1170
610
Tensile Strength: Yield (Proof), MPa 460 to 990
500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
410
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 40
43
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 59
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
86
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 2590
660
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 41
21
Strength to Weight: Bending, points 23 to 31
20
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 21 to 34
19

Alloy Composition

Carbon (C), % 0.26 to 0.34
0.13 to 0.18
Chromium (Cr), % 1.8 to 2.2
0.3 to 0.5
Iron (Fe), % 93.7 to 95.5
97.4 to 98.4
Manganese (Mn), % 0.3 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.3 to 0.5
0.080 to 0.15
Nickel (Ni), % 1.8 to 2.2
0.2 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.040