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EN 1.4931 Steel vs. EN 1.6580 Steel

Both EN 1.4931 steel and EN 1.6580 steel are iron alloys. They have 89% 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 1.4931 steel and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
220 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11 to 19
Fatigue Strength, MPa 410
310 to 610
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 810
720 to 1170
Tensile Strength: Yield (Proof), MPa 620
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
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 24
40
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.8
Embodied Energy, MJ/kg 42
23
Embodied Water, L/kg 100
59

Common Calculations

PREN (Pitting Resistance) 16
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 970
560 to 2590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
26 to 41
Strength to Weight: Bending, points 25
23 to 31
Thermal Diffusivity, mm2/s 6.5
11
Thermal Shock Resistance, points 22
21 to 34

Alloy Composition

Carbon (C), % 0.2 to 0.26
0.26 to 0.34
Chromium (Cr), % 11.3 to 12.2
1.8 to 2.2
Iron (Fe), % 83.2 to 86.8
93.7 to 95.5
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 1.0 to 1.2
0.3 to 0.5
Nickel (Ni), % 0 to 1.0
1.8 to 2.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035
Tungsten (W), % 0 to 0.5
0
Vanadium (V), % 0.25 to 0.35
0