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EN 1.4404 Stainless Steel vs. AISI 304N Stainless Steel

Both EN 1.4404 stainless steel and AISI 304N stainless steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 33 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 1.4404 stainless steel and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
190 to 360
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 43
9.1 to 45
Fatigue Strength, MPa 220 to 320
220 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 420 to 550
420 to 700
Tensile Strength: Ultimate (UTS), MPa 600 to 900
620 to 1180
Tensile Strength: Yield (Proof), MPa 240 to 570
270 to 850

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 950
960
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
3.0
Embodied Energy, MJ/kg 52
43
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 26
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
98 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
180 to 1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
22 to 42
Strength to Weight: Bending, points 20 to 26
21 to 32
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 13 to 20
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16.5 to 18.5
18 to 20
Iron (Fe), % 62.8 to 71.5
66.4 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10 to 13
8.0 to 10.5
Nitrogen (N), % 0 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030

Comparable Variants