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EN 1.5510 Steel vs. EN 1.7720 Steel

Both EN 1.5510 steel and EN 1.7720 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5510 steel and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
19
Fatigue Strength, MPa 220 to 330
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 450 to 1600
590
Tensile Strength: Yield (Proof), MPa 310 to 520
340

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 19
30
Embodied Water, L/kg 47
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 46 to 260
97
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 710
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 57
21
Strength to Weight: Bending, points 17 to 39
20
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 13 to 47
17

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.25 to 0.3
0.1 to 0.15
Chromium (Cr), % 0 to 0.3
0.3 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 97.9 to 99.149
96.6 to 98.6
Manganese (Mn), % 0.6 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3