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EN 1.4424 Stainless Steel vs. EN 1.4410 Stainless Steel

Both EN 1.4424 stainless steel and EN 1.4410 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4424 stainless steel and the bottom bar is EN 1.4410 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
24
Fatigue Strength, MPa 350 to 370
410
Impact Strength: V-Notched Charpy, J 90 to 91
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
81
Shear Strength, MPa 520
540
Tensile Strength: Ultimate (UTS), MPa 800
850
Tensile Strength: Yield (Proof), MPa 480 to 500
600

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
4.0
Embodied Energy, MJ/kg 46
56
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 29
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
180
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 640
880
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
30
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 3.5
4.0
Thermal Shock Resistance, points 23
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 19
24 to 26
Iron (Fe), % 68.6 to 72.4
58.1 to 66.8
Manganese (Mn), % 1.2 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.0
3.0 to 4.5
Nickel (Ni), % 4.5 to 5.2
6.0 to 8.0
Nitrogen (N), % 0.050 to 0.1
0.24 to 0.35
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 1.4 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015