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EN 1.4652 Stainless Steel vs. EN 1.4434 Stainless Steel

Both EN 1.4652 stainless steel and EN 1.4434 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 77% 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 1.4434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
200
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
41
Fatigue Strength, MPa 450
270
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
79
Shear Strength, MPa 610
450
Tensile Strength: Ultimate (UTS), MPa 880
660
Tensile Strength: Yield (Proof), MPa 490
310

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1460
1450
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
21
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.4
4.2
Embodied Energy, MJ/kg 87
57
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 57
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 340
220
Resilience: Unit (Modulus of Resilience), kJ/m3 570
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
23
Strength to Weight: Bending, points 25
21
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 19.5
Copper (Cu), % 0.3 to 0.6
0
Iron (Fe), % 38.3 to 46.3
59.2 to 69.9
Manganese (Mn), % 2.0 to 4.0
0 to 2.0
Molybdenum (Mo), % 7.0 to 8.0
3.0 to 4.0
Nickel (Ni), % 21 to 23
10.5 to 14
Nitrogen (N), % 0.45 to 0.55
0.1 to 0.2
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