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EN 1.8515 Steel vs. SAE-AISI 1118 Steel

Both EN 1.8515 steel and SAE-AISI 1118 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.8515 steel and the bottom bar is SAE-AISI 1118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
13
Fatigue Strength, MPa 580
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 680
300
Tensile Strength: Ultimate (UTS), MPa 1130
490
Tensile Strength: Yield (Proof), MPa 940
410

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 470
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 40
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 60
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
61
Resilience: Unit (Modulus of Resilience), kJ/m3 2310
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 33
15

Alloy Composition

Carbon (C), % 0.28 to 0.35
0.14 to 0.2
Chromium (Cr), % 2.8 to 3.3
0
Iron (Fe), % 94.7 to 96.5
98 to 98.5
Manganese (Mn), % 0.4 to 0.7
1.3 to 1.6
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0.080 to 0.13