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EN 1.4859 Stainless Steel vs. EN 1.4401 Stainless Steel

Both EN 1.4859 stainless steel and EN 1.4401 stainless steel are iron alloys. They have 75% 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 1.4859 stainless steel and the bottom bar is EN 1.4401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
14 to 40
Fatigue Strength, MPa 140
200 to 320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 490
600 to 900
Tensile Strength: Yield (Proof), MPa 210
230 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1050
950
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
19
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.2
3.8
Embodied Energy, MJ/kg 88
52
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 21
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
130 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
21 to 32
Strength to Weight: Bending, points 17
20 to 26
Thermal Diffusivity, mm2/s 3.4
4.0
Thermal Shock Resistance, points 11
13 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.070
Chromium (Cr), % 19 to 21
16.5 to 18.5
Iron (Fe), % 40.3 to 49
62.8 to 71.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.0 to 2.5
Nickel (Ni), % 31 to 33
10 to 13
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015