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EN 1.0535 Steel vs. SAE-AISI 4718 Steel

Both EN 1.0535 steel and SAE-AISI 4718 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0535 steel and the bottom bar is SAE-AISI 4718 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12
24
Fatigue Strength, MPa 210
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 420
330
Tensile Strength: Ultimate (UTS), MPa 690
510
Tensile Strength: Yield (Proof), MPa 340
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
39
Thermal Expansion, µm/m-K 12
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 47
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69
110
Resilience: Unit (Modulus of Resilience), kJ/m3 310
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 22
17

Alloy Composition

Carbon (C), % 0.52 to 0.6
0.16 to 0.21
Chromium (Cr), % 0 to 0.4
0.35 to 0.55
Iron (Fe), % 97.1 to 98.9
96.3 to 97.4
Manganese (Mn), % 0.6 to 0.9
0.7 to 0.9
Molybdenum (Mo), % 0 to 0.1
0.3 to 0.4
Nickel (Ni), % 0 to 0.4
0.9 to 1.2
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.040