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AISI 418 Stainless Steel vs. EN 1.5701 Steel

Both AISI 418 stainless steel and EN 1.5701 steel are iron alloys. They have 83% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 1.5701 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
130 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 1100
430 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
410
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
45
Thermal Expansion, µm/m-K 10
13

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
2.4
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
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
15 to 46
Strength to Weight: Bending, points 29
16 to 34
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 40
13 to 38

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.090 to 0.15
Chromium (Cr), % 12 to 14
0.4 to 0.7
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.5 to 83.6
97.2 to 98.7
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0.5 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 2.5 to 3.5
0