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EN 1.8505 Steel vs. EN 1.6580 Steel

Both EN 1.8505 steel and EN 1.6580 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.8505 steel and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
220 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
11 to 19
Fatigue Strength, MPa 540
310 to 610
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 630
450 to 700
Tensile Strength: Ultimate (UTS), MPa 1050
720 to 1170
Tensile Strength: Yield (Proof), MPa 860
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
450
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 39
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 22
23
Embodied Water, L/kg 65
59

Common Calculations

PREN (Pitting Resistance) 2.6
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
560 to 2590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
26 to 41
Strength to Weight: Bending, points 30
23 to 31
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 31
21 to 34

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0.26 to 0.34
Chromium (Cr), % 1.5 to 1.8
1.8 to 2.2
Iron (Fe), % 95.4 to 97.1
93.7 to 95.5
Manganese (Mn), % 0.4 to 0.7
0.3 to 0.6
Molybdenum (Mo), % 0.2 to 0.4
0.3 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035