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EN 1.7720 Steel vs. EN 1.0580 Steel

Both EN 1.7720 steel and EN 1.0580 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7720 steel and the bottom bar is EN 1.0580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
5.6 to 25
Fatigue Strength, MPa 230
210 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 590
540 to 620
Tensile Strength: Yield (Proof), MPa 340
290 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 30
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
31 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 300
230 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
19 to 22
Strength to Weight: Bending, points 20
19 to 21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 17
17 to 20

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.22
Chromium (Cr), % 0.3 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.6 to 98.6
97.5 to 100
Manganese (Mn), % 0.4 to 0.7
0 to 1.6
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.45
0 to 0.55
Sulfur (S), % 0 to 0.020
0 to 0.045
Vanadium (V), % 0.22 to 0.3
0