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EN 1.4859 Stainless Steel vs. EN 1.4347 Stainless Steel

Both EN 1.4859 stainless steel and EN 1.4347 stainless steel are iron alloys. They have 73% 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 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 140
320
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 490
660
Tensile Strength: Yield (Proof), MPa 210
480

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
450
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 36
16
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.2
3.1
Embodied Energy, MJ/kg 88
44
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 21
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
140
Resilience: Unit (Modulus of Resilience), kJ/m3 110
570
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 3.4
4.0
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.050
Chromium (Cr), % 19 to 21
25 to 27
Iron (Fe), % 40.3 to 49
62.2 to 69.4
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 31 to 33
5.5 to 7.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.5 to 1.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.020