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EN 1.7779 Steel vs. EN 1.5410 Steel

Both EN 1.7779 steel and EN 1.5410 steel are iron alloys. They have a very high 96% 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 1.7779 steel and the bottom bar is EN 1.5410 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
170 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
20 to 25
Fatigue Strength, MPa 430
290 to 330
Impact Strength: V-Notched Charpy, J 38
67 to 68
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 810
560 to 620
Tensile Strength: Yield (Proof), MPa 660
400 to 480

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 470
400
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 39
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.7
Embodied Energy, MJ/kg 41
22
Embodied Water, L/kg 64
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
430 to 610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
20 to 22
Strength to Weight: Bending, points 25
19 to 21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 23
16 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.17 to 0.23
0 to 0.12
Chromium (Cr), % 3.0 to 3.3
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 93.8 to 95.4
96.9 to 98.6
Manganese (Mn), % 0.3 to 0.5
1.2 to 1.8
Molybdenum (Mo), % 0.5 to 0.6
0.2 to 0.4
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0.45 to 0.55
0.050 to 0.1