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EN 1.4565 Stainless Steel vs. EN 1.4818 Stainless Steel

Both EN 1.4565 stainless steel and EN 1.4818 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 76% 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 1.4565 stainless steel and the bottom bar is EN 1.4818 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 35
40
Fatigue Strength, MPa 380
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 590
480
Tensile Strength: Ultimate (UTS), MPa 880
700
Tensile Strength: Yield (Proof), MPa 480
330

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.4
3.1
Embodied Energy, MJ/kg 74
44
Embodied Water, L/kg 210
150

Common Calculations

PREN (Pitting Resistance) 47
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
230
Resilience: Unit (Modulus of Resilience), kJ/m3 550
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
25
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 3.2
4.5
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 24 to 26
18 to 20
Iron (Fe), % 41.2 to 50.7
65.6 to 71.8
Manganese (Mn), % 5.0 to 7.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 16 to 19
9.0 to 11
Niobium (Nb), % 0 to 0.15
0
Nitrogen (N), % 0.3 to 0.6
0.12 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015