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EN 1.4864 Stainless Steel vs. AISI 418 Stainless Steel

Both EN 1.4864 stainless steel and AISI 418 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4864 stainless steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 33
17
Fatigue Strength, MPa 200
520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 430
680
Tensile Strength: Ultimate (UTS), MPa 650
1100
Tensile Strength: Yield (Proof), MPa 260
850

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1390
1500
Melting Onset (Solidus), °C 1340
1460
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.3
2.9
Embodied Energy, MJ/kg 75
41
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 17
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
38
Strength to Weight: Bending, points 21
29
Thermal Diffusivity, mm2/s 3.3
6.7
Thermal Shock Resistance, points 17
40

Alloy Composition

Carbon (C), % 0 to 0.15
0.15 to 0.2
Chromium (Cr), % 15 to 17
12 to 14
Iron (Fe), % 41.7 to 51
78.5 to 83.6
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 33 to 37
1.8 to 2.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5