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EN 1.4859 Stainless Steel vs. EN 1.4422 Stainless Steel

Both EN 1.4859 stainless steel and EN 1.4422 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 140
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 490
850
Tensile Strength: Yield (Proof), MPa 210
630

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 560
390
Maximum Temperature: Mechanical, °C 1050
760
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
10

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
11
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.2
2.7
Embodied Energy, MJ/kg 88
37
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 21
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
130
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
30
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 3.4
4.3
Thermal Shock Resistance, points 11
31

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 40.3 to 49
76.8 to 83.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
1.3 to 1.8
Nickel (Ni), % 31 to 33
4.0 to 5.0
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0030