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EN 1.4466 Stainless Steel vs. EN 1.4487 Stainless Steel

Both EN 1.4466 stainless steel and EN 1.4487 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 80% 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 1.4466 stainless steel and the bottom bar is EN 1.4487 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 42
34
Fatigue Strength, MPa 250
210
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 640
560
Tensile Strength: Yield (Proof), MPa 280
260

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 28
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
3.1
Embodied Energy, MJ/kg 70
44
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 35
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
160
Resilience: Unit (Modulus of Resilience), kJ/m3 200
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.7
4.2
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 24 to 26
18 to 20
Iron (Fe), % 45.6 to 52.9
64.7 to 72.9
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 21 to 23
9.0 to 12
Nitrogen (N), % 0.1 to 0.16
0.12 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030