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EN 1.8509 Steel vs. SAE-AISI 1146 Steel

Both EN 1.8509 steel and SAE-AISI 1146 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 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
13 to 17
Fatigue Strength, MPa 580
240 to 400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 680
410 to 440
Tensile Strength: Ultimate (UTS), MPa 1130
670 to 730
Tensile Strength: Yield (Proof), MPa 940
360 to 630

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
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.1

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
18
Embodied Water, L/kg 65
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
340 to 1050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
24 to 26
Strength to Weight: Bending, points 31
22 to 23
Thermal Diffusivity, mm2/s 10
14
Thermal Shock Resistance, points 33
20 to 22

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0.42 to 0.49
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 95.5 to 97.1
98.3 to 98.8
Manganese (Mn), % 0.4 to 0.7
0.7 to 1.0
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
0.080 to 0.13