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EN 1.7709 Steel vs. EN 1.8519 Steel

Both EN 1.7709 steel and EN 1.8519 steel are iron alloys. Their average alloy composition is basically identical. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7709 steel and the bottom bar is EN 1.8519 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 230
360
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 650 to 780
1200

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
450
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 33
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.9
Embodied Energy, MJ/kg 32
26
Embodied Water, L/kg 56
58

Common Calculations

PREN (Pitting Resistance) 3.6
3.2
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 27
43
Strength to Weight: Bending, points 21 to 24
32
Thermal Diffusivity, mm2/s 8.9
11
Thermal Shock Resistance, points 22 to 26
35

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Carbon (C), % 0.17 to 0.25
0.27 to 0.34
Chromium (Cr), % 1.2 to 1.5
2.3 to 2.7
Iron (Fe), % 95.2 to 97.5
95.7 to 97.1
Manganese (Mn), % 0.4 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0.55 to 0.8
0.15 to 0.25
Nickel (Ni), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0.2 to 0.35
0.1 to 0.2