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EN 1.0577 Steel vs. EN 1.8825 Steel

Both EN 1.0577 steel and EN 1.8825 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0577 steel and the bottom bar is EN 1.8825 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
22
Fatigue Strength, MPa 230
290
Impact Strength: V-Notched Charpy, J 31
58
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330
360
Tensile Strength: Ultimate (UTS), MPa 530
570
Tensile Strength: Yield (Proof), MPa 330
420

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
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
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 93
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 17
17

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.054
Carbon (C), % 0 to 0.24
0 to 0.18
Chromium (Cr), % 0
0 to 0.35
Copper (Cu), % 0 to 0.6
0 to 0.6
Iron (Fe), % 96.8 to 100
95.1 to 99.985
Manganese (Mn), % 0 to 1.7
0 to 1.8
Molybdenum (Mo), % 0
0 to 0.23
Nickel (Ni), % 0
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 0.6
0 to 0.55
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.14