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EN 1.8869 Steel vs. EN 1.5415 Steel

Both EN 1.8869 steel and EN 1.5415 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8869 steel and the bottom bar is EN 1.5415 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
24
Fatigue Strength, MPa 260
200
Impact Strength: V-Notched Charpy, J 110
36
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
320
Tensile Strength: Ultimate (UTS), MPa 540
510
Tensile Strength: Yield (Proof), MPa 360
280

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 48
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.3
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 48
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 340
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 16
15

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.16
0.12 to 0.2
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.4 to 100
97.3 to 99.23
Manganese (Mn), % 0 to 1.5
0.4 to 0.9
Molybdenum (Mo), % 0 to 0.25
0.25 to 0.35
Nickel (Ni), % 0 to 0.5
0 to 0.3
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0 to 0.012
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.060
0
Zirconium (Zr), % 0 to 0.050
0