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EN 1.0571 Steel vs. SAE-AISI 50B60 Steel

Both EN 1.0571 steel and SAE-AISI 50B60 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0571 steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
12 to 20
Fatigue Strength, MPa 220
240 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 350
380
Tensile Strength: Ultimate (UTS), MPa 550
610 to 630
Tensile Strength: Yield (Proof), MPa 310
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
19
Embodied Water, L/kg 49
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 260
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
22 to 23
Strength to Weight: Bending, points 19
20 to 21
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 17
20

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.2
0.56 to 0.64
Chromium (Cr), % 0 to 0.3
0.4 to 0.6
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 96.5 to 99
97.3 to 98.1
Manganese (Mn), % 0.9 to 1.7
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Vanadium (V), % 0 to 0.1
0