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SAE-AISI 4718 Steel vs. EN 1.4062 Stainless Steel

Both SAE-AISI 4718 steel and EN 1.4062 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 30 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 SAE-AISI 4718 steel and the bottom bar is EN 1.4062 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
23 to 34
Fatigue Strength, MPa 270
410 to 420
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 330
510
Tensile Strength: Ultimate (UTS), MPa 510
770 to 800
Tensile Strength: Yield (Proof), MPa 370
530 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1030
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.6
Embodied Energy, MJ/kg 21
37
Embodied Water, L/kg 51
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 360
690 to 910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
28 to 29
Strength to Weight: Bending, points 18
24 to 25
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 17
21 to 22

Alloy Composition

Carbon (C), % 0.16 to 0.21
0 to 0.030
Chromium (Cr), % 0.35 to 0.55
21.5 to 24
Iron (Fe), % 96.3 to 97.4
69.3 to 77.3
Manganese (Mn), % 0.7 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.4
0 to 0.45
Nickel (Ni), % 0.9 to 1.2
1.0 to 2.9
Nitrogen (N), % 0
0.16 to 0.28
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010