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EN 1.4859 Stainless Steel vs. EN 1.4421 Stainless Steel

Both EN 1.4859 stainless steel and EN 1.4421 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 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 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
11 to 17
Fatigue Strength, MPa 140
380 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 490
880 to 1100
Tensile Strength: Yield (Proof), MPa 210
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1050
870
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
2.6
Embodied Energy, MJ/kg 88
36
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 110
960 to 2270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
31 to 39
Strength to Weight: Bending, points 17
26 to 30
Thermal Diffusivity, mm2/s 3.4
4.4
Thermal Shock Resistance, points 11
31 to 39

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.060
Chromium (Cr), % 19 to 21
15.5 to 17.5
Iron (Fe), % 40.3 to 49
74.4 to 80.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.7
Nickel (Ni), % 31 to 33
4.0 to 5.5
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.5 to 1.5
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020