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EN 1.4659 Stainless Steel vs. EN 1.4518 Stainless Steel

Both EN 1.4659 stainless steel and EN 1.4518 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 75% 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 1.4659 stainless steel and the bottom bar is EN 1.4518 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 49
34
Fatigue Strength, MPa 460
160
Impact Strength: V-Notched Charpy, J 94
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 900
490
Tensile Strength: Yield (Proof), MPa 480
210

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
20
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 6.5
4.0
Embodied Energy, MJ/kg 89
55
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 54
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
140
Resilience: Unit (Modulus of Resilience), kJ/m3 550
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 31
17
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 3.2
4.1
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 23 to 25
18 to 20
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 35.7 to 45.7
61.4 to 70
Manganese (Mn), % 2.0 to 4.0
0 to 1.5
Molybdenum (Mo), % 5.5 to 6.5
3.0 to 3.5
Nickel (Ni), % 21 to 23
9.0 to 12
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0