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EN 1.4109 Stainless Steel vs. EN 1.4024 Stainless Steel

Both EN 1.4109 stainless steel and EN 1.4024 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4109 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, % 19
15 to 22
Fatigue Strength, MPa 270
220 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 480
370 to 460
Tensile Strength: Ultimate (UTS), MPa 770
590 to 750
Tensile Strength: Yield (Proof), MPa 420
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 820
760
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
30
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
1.9
Embodied Energy, MJ/kg 30
27
Embodied Water, L/kg 110
100

Common Calculations

PREN (Pitting Resistance) 17
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 460
280 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21 to 27
Strength to Weight: Bending, points 24
20 to 24
Thermal Diffusivity, mm2/s 8.1
8.1
Thermal Shock Resistance, points 28
21 to 26

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.12 to 0.17
Chromium (Cr), % 14 to 16
12 to 14
Iron (Fe), % 80.7 to 85
83.8 to 87.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.8
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