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EN 1.0108 Steel vs. EN 1.8912 Steel

Both EN 1.0108 steel and EN 1.8912 steel are iron alloys. Both are furnished in the normalized condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0108 steel and the bottom bar is EN 1.8912 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 29
20
Fatigue Strength, MPa 150
290
Impact Strength: V-Notched Charpy, J 38
58
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 250
380
Tensile Strength: Ultimate (UTS), MPa 380
600
Tensile Strength: Yield (Proof), MPa 200
410

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 50
46
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 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 19
24
Embodied Water, L/kg 48
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13
21
Strength to Weight: Bending, points 15
20
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 12
18

Alloy Composition

Aluminum (Al), % 0.020 to 0.2
0 to 0.015
Carbon (C), % 0 to 0.13
0 to 0.22
Chromium (Cr), % 0 to 0.3
0 to 0.35
Copper (Cu), % 0 to 0.3
0 to 0.6
Iron (Fe), % 97.5 to 99.98
95 to 99.05
Manganese (Mn), % 0 to 0.7
1.0 to 1.8
Molybdenum (Mo), % 0 to 0.080
0 to 0.13
Nickel (Ni), % 0 to 0.3
0 to 0.85
Niobium (Nb), % 0 to 0.010
0 to 0.060
Nitrogen (N), % 0
0 to 0.027
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.65
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0 to 0.040
0 to 0.060
Vanadium (V), % 0 to 0.020
0 to 0.22