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EN 1.4469 Stainless Steel vs. EN 1.4669 Stainless Steel

Both EN 1.4469 stainless steel and EN 1.4669 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 88% 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 1.4469 stainless steel and the bottom bar is EN 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 25
28
Fatigue Strength, MPa 380
330
Impact Strength: V-Notched Charpy, J 56
110
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 740
780
Tensile Strength: Yield (Proof), MPa 550
450

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1030
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 21
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.6
Embodied Energy, MJ/kg 57
38
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 42
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 730
510
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 20
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.045
Chromium (Cr), % 25 to 27
21.5 to 24
Copper (Cu), % 0 to 1.3
1.6 to 3.0
Iron (Fe), % 56.4 to 65.9
65.2 to 74.8
Manganese (Mn), % 0 to 1.0
1.0 to 3.0
Molybdenum (Mo), % 3.0 to 5.0
0 to 0.5
Nickel (Ni), % 6.0 to 8.0
1.0 to 3.0
Nitrogen (N), % 0.12 to 0.22
0.12 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030