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EN 1.4563 Stainless Steel vs. EN 1.4406 Stainless Steel

Both EN 1.4563 stainless steel and EN 1.4406 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4563 stainless steel and the bottom bar is EN 1.4406 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
42
Fatigue Strength, MPa 210
280
Impact Strength: V-Notched Charpy, J 91
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 420
470
Tensile Strength: Ultimate (UTS), MPa 620
680
Tensile Strength: Yield (Proof), MPa 250
320

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
410
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
18
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.3
3.7
Embodied Energy, MJ/kg 87
51
Embodied Water, L/kg 240
150

Common Calculations

PREN (Pitting Resistance) 39
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
240
Resilience: Unit (Modulus of Resilience), kJ/m3 150
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 26 to 28
16.5 to 18.5
Copper (Cu), % 0.7 to 1.5
0
Iron (Fe), % 31.6 to 40.3
63.2 to 71.4
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
2.0 to 2.5
Nickel (Ni), % 30 to 32
10 to 12.5
Nitrogen (N), % 0 to 0.1
0.12 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015