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EN 1.8509 Steel vs. SAE-AISI 1084 Steel

Both EN 1.8509 steel and SAE-AISI 1084 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.8509 steel and the bottom bar is SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
11
Fatigue Strength, MPa 580
320 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 680
470 to 550
Tensile Strength: Ultimate (UTS), MPa 1130
780 to 930
Tensile Strength: Yield (Proof), MPa 940
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
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
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
700 to 960
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
28 to 33
Strength to Weight: Bending, points 31
24 to 27
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 33
25 to 30

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0.8 to 0.93
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 95.5 to 97.1
98.1 to 98.6
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0 to 0.050