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EN 1.8509 Steel vs. EN 1.0540 Steel

Both EN 1.8509 steel and EN 1.0540 steel are iron alloys. They have a very high 98% 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 1.8509 steel and the bottom bar is EN 1.0540 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
14
Fatigue Strength, MPa 580
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 680
400
Tensile Strength: Ultimate (UTS), MPa 1130
660
Tensile Strength: Yield (Proof), MPa 940
330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
48
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 65
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
75
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
23
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 10
13
Thermal Shock Resistance, points 33
21

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0.47 to 0.55
Chromium (Cr), % 1.5 to 1.8
0 to 0.4
Iron (Fe), % 95.5 to 97.1
97.2 to 98.9
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0.2 to 0.35
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.045