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EN 1.4594 Stainless Steel vs. EN 1.4024 Stainless Steel

Both EN 1.4594 stainless steel and EN 1.4024 stainless steel are iron alloys. They have 90% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4594 stainless steel and the bottom bar is EN 1.4024 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 17
15 to 22
Fatigue Strength, MPa 490 to 620
220 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 620 to 700
370 to 460
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
590 to 750
Tensile Strength: Yield (Proof), MPa 810 to 1140
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 820
760
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.2
1.9
Embodied Energy, MJ/kg 45
27
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 19
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
280 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36 to 41
21 to 27
Strength to Weight: Bending, points 29 to 31
20 to 24
Thermal Diffusivity, mm2/s 4.4
8.1
Thermal Shock Resistance, points 34 to 39
21 to 26

Alloy Composition

Carbon (C), % 0 to 0.070
0.12 to 0.17
Chromium (Cr), % 13 to 15
12 to 14
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 72.6 to 79.5
83.8 to 87.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
0
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015

Comparable Variants