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EN 1.4325 Stainless Steel vs. EN 1.4462 Stainless Steel

Both EN 1.4325 stainless steel and EN 1.4462 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4325 stainless steel and the bottom bar is EN 1.4462 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
26
Fatigue Strength, MPa 190
370
Impact Strength: V-Notched Charpy, J 91
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 450
500
Tensile Strength: Ultimate (UTS), MPa 650
780
Tensile Strength: Yield (Proof), MPa 210
520

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 930
1060
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 18
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
180
Resilience: Unit (Modulus of Resilience), kJ/m3 110
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0.030 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
21 to 23
Iron (Fe), % 67.8 to 75
63.7 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 8.0 to 10
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015