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EN 1.6773 Steel vs. EN 1.7219 Steel

Both EN 1.6773 steel and EN 1.7219 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 1.7219 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
19
Fatigue Strength, MPa 560
340
Impact Strength: V-Notched Charpy, J 38
57
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 670
400
Tensile Strength: Ultimate (UTS), MPa 1120
650
Tensile Strength: Yield (Proof), MPa 910
490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
420
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 46
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.4

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
1.5
Embodied Energy, MJ/kg 26
20
Embodied Water, L/kg 61
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
23
Strength to Weight: Bending, points 30
21
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 33
19

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.22 to 0.29
Chromium (Cr), % 1.6 to 2.0
0.9 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 92 to 93.9
96.7 to 98.2
Manganese (Mn), % 0.3 to 0.6
0.5 to 0.8
Molybdenum (Mo), % 0.25 to 0.45
0.15 to 0.3
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 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010