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AISI 418 Stainless Steel vs. EN 1.0451 Steel

Both AISI 418 stainless steel and EN 1.0451 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 AISI 418 stainless steel and the bottom bar is EN 1.0451 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
27
Fatigue Strength, MPa 520
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 680
270
Tensile Strength: Ultimate (UTS), MPa 1100
420
Tensile Strength: Yield (Proof), MPa 850
240

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
400
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1460
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.1
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 110
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
98
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
15
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 40
13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.15 to 0.2
0 to 0.15
Chromium (Cr), % 12 to 14
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 78.5 to 83.6
97.2 to 99.58
Manganese (Mn), % 0 to 0.5
0.4 to 1.2
Molybdenum (Mo), % 0 to 0.5
0 to 0.080
Nickel (Ni), % 1.8 to 2.2
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.040
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0
0 to 0.020