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EN 1.6580 Steel vs. EN 1.7366 Steel

Both EN 1.6580 steel and EN 1.7366 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 1.6580 steel and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 450
510
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 7.8
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
9.3

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Carbon (C), % 0.26 to 0.34
0 to 0.18
Chromium (Cr), % 1.8 to 2.2
4.0 to 6.0
Iron (Fe), % 93.7 to 95.5
91.9 to 95.3
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.8
Molybdenum (Mo), % 0.3 to 0.5
0.45 to 0.65
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.015

Comparable Variants