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EN 1.7366 Steel vs. EN 1.6580 Steel

Both EN 1.7366 steel and EN 1.6580 steel are iron alloys. They have a very high 97% 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 1.7366 steel and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
220 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 19
11 to 19
Fatigue Strength, MPa 160 to 320
310 to 610
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 290 to 440
450 to 700
Tensile Strength: Ultimate (UTS), MPa 460 to 710
720 to 1170
Tensile Strength: Yield (Proof), MPa 230 to 480
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 510
450
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 40
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 23
23
Embodied Water, L/kg 69
59

Common Calculations

PREN (Pitting Resistance) 6.8
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
560 to 2590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16 to 25
26 to 41
Strength to Weight: Bending, points 17 to 23
23 to 31
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 13 to 20
21 to 34

Alloy Composition

Carbon (C), % 0 to 0.18
0.26 to 0.34
Chromium (Cr), % 4.0 to 6.0
1.8 to 2.2
Iron (Fe), % 91.9 to 95.3
93.7 to 95.5
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.45 to 0.65
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 0.015
0 to 0.035

Comparable Variants