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EN 1.0426 Steel vs. AISI 418 Stainless Steel

Both EN 1.0426 steel and AISI 418 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.0426 steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
17
Fatigue Strength, MPa 210
520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 330
680
Tensile Strength: Ultimate (UTS), MPa 520
1100
Tensile Strength: Yield (Proof), MPa 290
850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
770
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1460
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 19
41
Embodied Water, L/kg 47
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 230
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
38
Strength to Weight: Bending, points 18
29
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 16
40

Alloy Composition

Carbon (C), % 0.080 to 0.2
0.15 to 0.2
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 97.9 to 99.02
78.5 to 83.6
Manganese (Mn), % 0.9 to 1.5
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5