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EN 1.8550 Steel vs. EN 1.0580 Steel

Both EN 1.8550 steel and EN 1.0580 steel are iron alloys. They have a very high 96% 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 1.8550 steel and the bottom bar is EN 1.0580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
5.6 to 25
Fatigue Strength, MPa 470
210 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 600
340 to 360
Tensile Strength: Ultimate (UTS), MPa 1000
540 to 620
Tensile Strength: Yield (Proof), MPa 760
290 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 40
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
18
Embodied Water, L/kg 67
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
31 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
230 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
19 to 22
Strength to Weight: Bending, points 29
19 to 21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 29
17 to 20

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.22
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 94.4 to 96.3
97.5 to 100
Manganese (Mn), % 0.4 to 0.7
0 to 1.6
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.85 to 1.2
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.035
0 to 0.045