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EN 1.4592 Stainless Steel vs. EN 1.4590 Stainless Steel

Both EN 1.4592 stainless steel and EN 1.4590 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4592 stainless steel and the bottom bar is EN 1.4590 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
26
Fatigue Strength, MPa 340
190
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
77
Shear Strength, MPa 400
310
Tensile Strength: Ultimate (UTS), MPa 630
480
Tensile Strength: Yield (Proof), MPa 500
270

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 550
470
Maximum Temperature: Mechanical, °C 1100
860
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
26
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
11
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.5
Embodied Energy, MJ/kg 52
37
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 43
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 610
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.6
7.0
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 28 to 30
16 to 17.5
Iron (Fe), % 62.6 to 68.4
79.7 to 83.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
0
Niobium (Nb), % 0
0.35 to 0.55
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.15 to 0.8
0
Zirconium (Zr), % 0
0 to 0.15