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EN 1.8868 Steel vs. EN 1.8819 Steel

Both EN 1.8868 steel and EN 1.8819 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8868 steel and the bottom bar is EN 1.8819 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
27
Fatigue Strength, MPa 260
200
Impact Strength: V-Notched Charpy, J 90
49
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
280
Tensile Strength: Ultimate (UTS), MPa 540
440
Tensile Strength: Yield (Proof), MPa 350
270

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
21
Embodied Water, L/kg 48
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 330
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
16
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 16
13

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.034
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.16
0 to 0.15
Chromium (Cr), % 0 to 0.3
0 to 0.35
Copper (Cu), % 0 to 0.3
0 to 0.6
Iron (Fe), % 96.4 to 100
95.9 to 99.985
Manganese (Mn), % 0 to 1.5
0 to 1.6
Molybdenum (Mo), % 0 to 0.25
0 to 0.13
Nickel (Ni), % 0 to 0.5
0 to 0.35
Niobium (Nb), % 0 to 0.050
0 to 0.060
Nitrogen (N), % 0 to 0.015
0 to 0.017
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.0080
0 to 0.025
Titanium (Ti), % 0 to 0.030
0 to 0.060
Vanadium (V), % 0 to 0.060
0 to 0.1
Zirconium (Zr), % 0 to 0.050
0