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EN 1.4462 Stainless Steel vs. EN 1.4669 Stainless Steel

Both EN 1.4462 stainless steel and EN 1.4669 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4462 stainless steel and the bottom bar is EN 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 26
28
Fatigue Strength, MPa 370
330
Impact Strength: V-Notched Charpy, J 90
110
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
78
Shear Strength, MPa 500
500
Tensile Strength: Ultimate (UTS), MPa 780
780
Tensile Strength: Yield (Proof), MPa 520
450

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1060
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 15
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 17
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.6
Embodied Energy, MJ/kg 49
38
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 34
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 670
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
28
Strength to Weight: Bending, points 24
24
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.045
Chromium (Cr), % 21 to 23
21.5 to 24
Copper (Cu), % 0
1.6 to 3.0
Iron (Fe), % 63.7 to 71.9
65.2 to 74.8
Manganese (Mn), % 0 to 2.0
1.0 to 3.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.5
Nickel (Ni), % 4.5 to 6.5
1.0 to 3.0
Nitrogen (N), % 0.1 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 0.015
0 to 0.030