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EN 1.4361 Stainless Steel vs. EN 1.4418 Stainless Steel

Both EN 1.4361 stainless steel and EN 1.4418 stainless steel are iron alloys. They have 84% 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 1.4361 stainless steel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 43
16 to 20
Fatigue Strength, MPa 220
350 to 480
Impact Strength: V-Notched Charpy, J 90
62 to 90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 440
530 to 620
Tensile Strength: Ultimate (UTS), MPa 630
860 to 1000
Tensile Strength: Yield (Proof), MPa 250
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 940
870
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 52
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 160
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
31 to 36
Strength to Weight: Bending, points 21
26 to 28
Thermal Diffusivity, mm2/s 3.7
4.0
Thermal Shock Resistance, points 15
31 to 36

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.060
Chromium (Cr), % 16.5 to 18.5
15 to 17
Iron (Fe), % 58.7 to 65.8
73.2 to 80.2
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.2
0.8 to 1.5
Nickel (Ni), % 14 to 16
4.0 to 6.0
Nitrogen (N), % 0 to 0.1
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 3.7 to 4.5
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.015