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EN 1.1122 Steel vs. EN 1.8871 Steel

Both EN 1.1122 steel and EN 1.8871 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.1122 steel and the bottom bar is EN 1.8871 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
22
Fatigue Strength, MPa 170 to 260
320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240 to 290
380
Tensile Strength: Ultimate (UTS), MPa 340 to 460
610
Tensile Strength: Yield (Proof), MPa 240 to 370
460

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 51
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
22
Embodied Water, L/kg 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
22
Strength to Weight: Bending, points 14 to 17
20
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 11 to 15
18

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.12
0 to 0.18
Chromium (Cr), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 98.7 to 99.62
95.1 to 100
Manganese (Mn), % 0.3 to 0.6
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.050