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EN 1.8871 Steel vs. EN 1.0577 Steel

Both EN 1.8871 steel and EN 1.0577 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 1.8871 steel and the bottom bar is EN 1.0577 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
20
Fatigue Strength, MPa 320
230
Impact Strength: V-Notched Charpy, J 68
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
330
Tensile Strength: Ultimate (UTS), MPa 610
530
Tensile Strength: Yield (Proof), MPa 460
330

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 39
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
93
Resilience: Unit (Modulus of Resilience), kJ/m3 550
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 18
17

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.18
0 to 0.24
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0 to 0.6
Iron (Fe), % 95.1 to 100
96.8 to 100
Manganese (Mn), % 0 to 1.7
0 to 1.7
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.035
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.080
0
Zirconium (Zr), % 0 to 0.050
0