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EN 1.4652 Stainless Steel vs. EN 1.4406 Stainless Steel

Both EN 1.4652 stainless steel and EN 1.4406 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4652 stainless steel and the bottom bar is EN 1.4406 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
220
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
42
Fatigue Strength, MPa 450
280
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Shear Strength, MPa 610
470
Tensile Strength: Ultimate (UTS), MPa 880
680
Tensile Strength: Yield (Proof), MPa 490
320

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
18
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.4
3.7
Embodied Energy, MJ/kg 87
51
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 57
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 340
240
Resilience: Unit (Modulus of Resilience), kJ/m3 570
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
24
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 2.6
4.0
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 23 to 25
16.5 to 18.5
Copper (Cu), % 0.3 to 0.6
0
Iron (Fe), % 38.3 to 46.3
63.2 to 71.4
Manganese (Mn), % 2.0 to 4.0
0 to 2.0
Molybdenum (Mo), % 7.0 to 8.0
2.0 to 2.5
Nickel (Ni), % 21 to 23
10 to 12.5
Nitrogen (N), % 0.45 to 0.55
0.12 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.015