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EN 1.8868 Steel vs. EN 1.0488 Steel

Both EN 1.8868 steel and EN 1.0488 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 1.0488 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
210
Impact Strength: V-Notched Charpy, J 90
79
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
280

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
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
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
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.16
0 to 0.16
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
96.6 to 99.38
Manganese (Mn), % 0 to 1.5
0.6 to 1.5
Molybdenum (Mo), % 0 to 0.25
0 to 0.080
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0 to 0.050
0 to 0.050
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 0.4
Sulfur (S), % 0 to 0.0080
0 to 0.0080
Titanium (Ti), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.060
0 to 0.050
Zirconium (Zr), % 0 to 0.050
0