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EN 1.4516 Stainless Steel vs. AISI 418 Stainless Steel

Both EN 1.4516 stainless steel and AISI 418 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4516 stainless steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 210
520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 350
680
Tensile Strength: Ultimate (UTS), MPa 550
1100
Tensile Strength: Yield (Proof), MPa 320
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 720
770
Melting Completion (Liquidus), °C 1450
1500
Melting Onset (Solidus), °C 1400
1460
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
15
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 28
41
Embodied Water, L/kg 97
110

Common Calculations

PREN (Pitting Resistance) 12
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
38
Strength to Weight: Bending, points 19
29
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 20
40

Alloy Composition

Carbon (C), % 0 to 0.080
0.15 to 0.2
Chromium (Cr), % 10.5 to 12.5
12 to 14
Iron (Fe), % 83.3 to 89
78.5 to 83.6
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0.5 to 1.5
1.8 to 2.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.050 to 0.35
0
Tungsten (W), % 0
2.5 to 3.5