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EN 1.6773 Steel vs. EN 1.8507 Steel

Both EN 1.6773 steel and EN 1.8507 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.6773 steel and the bottom bar is EN 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
16
Fatigue Strength, MPa 560
440
Impact Strength: V-Notched Charpy, J 38
40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 670
550
Tensile Strength: Ultimate (UTS), MPa 1120
900
Tensile Strength: Yield (Proof), MPa 910
670

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
430
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 26
21
Embodied Water, L/kg 61
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
1210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
32
Strength to Weight: Bending, points 30
27
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 33
26

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.32 to 0.39
0.3 to 0.37
Chromium (Cr), % 1.6 to 2.0
1.0 to 1.3
Iron (Fe), % 92 to 93.9
96.1 to 97.7
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.25 to 0.45
0.15 to 0.25
Nickel (Ni), % 3.6 to 4.1
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035