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EN 1.4515 Stainless Steel vs. EN 1.4659 Stainless Steel

Both EN 1.4515 stainless steel and EN 1.4659 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 77% 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 1.4515 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 25
49
Fatigue Strength, MPa 380
460
Impact Strength: V-Notched Charpy, J 67
94
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 730
900
Tensile Strength: Yield (Proof), MPa 550
480

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.8
6.5
Embodied Energy, MJ/kg 53
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 38
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
370
Resilience: Unit (Modulus of Resilience), kJ/m3 730
550
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
31
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.3
3.2
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 24.5 to 26.5
23 to 25
Copper (Cu), % 0.8 to 1.3
1.0 to 2.0
Iron (Fe), % 58.4 to 66.6
35.7 to 45.7
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 2.5 to 3.5
5.5 to 6.5
Nickel (Ni), % 5.5 to 7.0
21 to 23
Nitrogen (N), % 0.12 to 0.25
0.35 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5