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EN 1.0050 Steel vs. EN 1.7779 Steel

Both EN 1.0050 steel and EN 1.7779 steel are iron alloys. They have a moderately high 95% 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 1.0050 steel and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
16
Fatigue Strength, MPa 190
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330
500
Tensile Strength: Ultimate (UTS), MPa 530
810
Tensile Strength: Yield (Proof), MPa 280
660

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
470
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 53
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.8
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
4.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 45
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0
3.0 to 3.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 99.876 to 100
93.8 to 95.4
Manganese (Mn), % 0
0.3 to 0.5
Molybdenum (Mo), % 0
0.5 to 0.6
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.055
0 to 0.025
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.055
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55