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EN 1.4104 Stainless Steel vs. EN 1.4404 Stainless Steel

Both EN 1.4104 stainless steel and EN 1.4404 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4104 stainless steel and the bottom bar is EN 1.4404 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 23
14 to 43
Fatigue Strength, MPa 230 to 310
220 to 320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 400 to 450
420 to 550
Tensile Strength: Ultimate (UTS), MPa 630 to 750
600 to 900
Tensile Strength: Yield (Proof), MPa 350 to 560
240 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 860
950
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.8
Embodied Energy, MJ/kg 30
52
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
140 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 27
21 to 32
Strength to Weight: Bending, points 21 to 24
20 to 26
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 22 to 27
13 to 20

Alloy Composition

Carbon (C), % 0.1 to 0.17
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
16.5 to 18.5
Iron (Fe), % 78.8 to 84.1
62.8 to 71.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.6
2.0 to 2.5
Nickel (Ni), % 0
10 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.015