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EN 1.6773 Steel vs. EN 1.7710 Steel

Both EN 1.6773 steel and EN 1.7710 steel are iron alloys. They have a very high 96% 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 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
280 to 320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
6.8 to 11
Fatigue Strength, MPa 560
500 to 620
Impact Strength: V-Notched Charpy, J 38
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 1120
930 to 1070
Tensile Strength: Yield (Proof), MPa 910
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 450
440
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 46
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
3.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.2
Embodied Energy, MJ/kg 26
30
Embodied Water, L/kg 61
57

Common Calculations

PREN (Pitting Resistance) 3.0
4.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 2210
1680 to 2970
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
33 to 38
Strength to Weight: Bending, points 30
27 to 30
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 33
27 to 31

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.12 to 0.18
Chromium (Cr), % 1.6 to 2.0
1.3 to 1.8
Iron (Fe), % 92 to 93.9
95.1 to 97
Manganese (Mn), % 0.3 to 0.6
0.6 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0.8 to 1.0
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 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0.15 to 0.25