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EN 1.1158 Steel vs. EN 1.8827 Steel

Both EN 1.1158 steel and EN 1.8827 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.1158 steel and the bottom bar is EN 1.8827 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 150
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 24
19
Fatigue Strength, MPa 170 to 220
300
Impact Strength: V-Notched Charpy, J 28 to 40
58
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 320
380
Tensile Strength: Ultimate (UTS), MPa 470 to 500
610
Tensile Strength: Yield (Proof), MPa 240 to 310
440

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 49
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
510
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 18
21
Strength to Weight: Bending, points 17 to 18
20
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 15 to 16
18

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.054
Carbon (C), % 0.22 to 0.29
0 to 0.18
Chromium (Cr), % 0 to 0.4
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 97.6 to 99.38
95 to 99.985
Manganese (Mn), % 0.4 to 0.7
0 to 1.8
Molybdenum (Mo), % 0 to 0.1
0 to 0.23
Nickel (Ni), % 0 to 0.4
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.027
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.65
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.14