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EN 1.3960 Stainless Steel vs. EN 1.4517 Stainless Steel

Both EN 1.3960 stainless steel and EN 1.4517 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.3960 stainless steel and the bottom bar is EN 1.4517 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
25
Fatigue Strength, MPa 220
380
Impact Strength: V-Notched Charpy, J 90
56
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 590
730
Tensile Strength: Yield (Proof), MPa 270
550

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 970
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 21
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
3.8
Embodied Energy, MJ/kg 57
53
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 30
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 190
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.9
4.6
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
24.5 to 26.5
Copper (Cu), % 0
2.8 to 3.5
Iron (Fe), % 60.2 to 67.9
56.7 to 65.1
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 3.0
2.5 to 3.5
Nickel (Ni), % 13 to 15
5.0 to 7.0
Nitrogen (N), % 0.15 to 0.25
0.12 to 0.22
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025