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EN 1.8509 Steel vs. SAE-AISI 50B60 Steel

Both EN 1.8509 steel and SAE-AISI 50B60 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 SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
12 to 20
Fatigue Strength, MPa 580
240 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 680
380
Tensile Strength: Ultimate (UTS), MPa 1130
610 to 630
Tensile Strength: Yield (Proof), MPa 940
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
410
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
45
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
2.0
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
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
22 to 23
Strength to Weight: Bending, points 31
20 to 21
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 33
20

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.38 to 0.45
0.56 to 0.64
Chromium (Cr), % 1.5 to 1.8
0.4 to 0.6
Iron (Fe), % 95.5 to 97.1
97.3 to 98.1
Manganese (Mn), % 0.4 to 0.7
0.75 to 1.0
Molybdenum (Mo), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.040