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EN 1.4652 Stainless Steel vs. EN 1.4374 Stainless Steel

Both EN 1.4652 stainless steel and EN 1.4374 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 70% 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 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
230
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
40
Fatigue Strength, MPa 450
340
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 610
550
Tensile Strength: Ultimate (UTS), MPa 880
800
Tensile Strength: Yield (Proof), MPa 490
400

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
920
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 34
14
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.4
2.9
Embodied Energy, MJ/kg 87
42
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 57
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 340
270
Resilience: Unit (Modulus of Resilience), kJ/m3 570
400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
29
Strength to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 2.6
4.0
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.020
0.050 to 0.1
Chromium (Cr), % 23 to 25
17.5 to 18.5
Copper (Cu), % 0.3 to 0.6
0 to 0.4
Iron (Fe), % 38.3 to 46.3
63.5 to 67.9
Manganese (Mn), % 2.0 to 4.0
9.0 to 10
Molybdenum (Mo), % 7.0 to 8.0
0 to 0.5
Nickel (Ni), % 21 to 23
5.0 to 6.0
Nitrogen (N), % 0.45 to 0.55
0.25 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.3 to 0.6
Sulfur (S), % 0 to 0.0050
0 to 0.030