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EN 1.8838 Steel vs. SAE-AISI 8115 Steel

Both EN 1.8838 steel and SAE-AISI 8115 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 EN 1.8838 steel and the bottom bar is SAE-AISI 8115 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
15
Fatigue Strength, MPa 290
320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
370
Tensile Strength: Ultimate (UTS), MPa 610
610
Tensile Strength: Yield (Proof), MPa 430
500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 44
43
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 50
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
86
Resilience: Unit (Modulus of Resilience), kJ/m3 500
660
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 18
19

Alloy Composition

Aluminum (Al), % 0.015 to 0.054
0
Carbon (C), % 0 to 0.18
0.13 to 0.18
Chromium (Cr), % 0 to 0.35
0.3 to 0.5
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 95 to 99.985
97.4 to 98.4
Manganese (Mn), % 0 to 1.8
0.7 to 0.9
Molybdenum (Mo), % 0 to 0.23
0.080 to 0.15
Nickel (Ni), % 0 to 0.85
0.2 to 0.4
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.027
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.65
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.14
0