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EN 1.5637 Steel vs. AISI 418 Stainless Steel

Both EN 1.5637 steel and AISI 418 stainless steel are iron alloys. They have 84% 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 1.5637 steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
17
Fatigue Strength, MPa 280
520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 360
680
Tensile Strength: Ultimate (UTS), MPa 560
1100
Tensile Strength: Yield (Proof), MPa 390
850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
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 52
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
15
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 24
41
Embodied Water, L/kg 52
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
170
Resilience: Unit (Modulus of Resilience), kJ/m3 410
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
38
Strength to Weight: Bending, points 19
29
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 16
40

Alloy Composition

Carbon (C), % 0 to 0.15
0.15 to 0.2
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 94.9 to 96.5
78.5 to 83.6
Manganese (Mn), % 0.3 to 0.8
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 3.3 to 3.8
1.8 to 2.2
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0 to 0.050
0