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EN 1.4408 Stainless Steel vs. EN 1.4823 Stainless Steel

Both EN 1.4408 stainless steel and EN 1.4823 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 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 1.4408 stainless steel and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
3.4
Fatigue Strength, MPa 170
130
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 510
620
Tensile Strength: Yield (Proof), MPa 210
290

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.7
3.0
Embodied Energy, MJ/kg 52
43
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
17
Resilience: Unit (Modulus of Resilience), kJ/m3 110
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 3.9
4.5
Thermal Shock Resistance, points 11
17

Alloy Composition

Carbon (C), % 0 to 0.070
0.3 to 0.5
Chromium (Cr), % 18 to 20
25 to 28
Iron (Fe), % 62.4 to 71
60.9 to 70.7
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.5
Nickel (Ni), % 9.0 to 12
3.0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030