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EN 1.4859 Stainless Steel vs. EN 1.4325 Stainless Steel

Both EN 1.4859 stainless steel and EN 1.4325 stainless steel are iron alloys. They have 73% 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 1.4325 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 140
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 490
650
Tensile Strength: Yield (Proof), MPa 210
210

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1050
930
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
3.0
Embodied Energy, MJ/kg 88
42
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 21
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
230
Resilience: Unit (Modulus of Resilience), kJ/m3 110
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 3.4
4.3
Thermal Shock Resistance, points 11
15

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.030 to 0.15
Chromium (Cr), % 19 to 21
17 to 19
Iron (Fe), % 40.3 to 49
67.8 to 75
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 31 to 33
8.0 to 10
Niobium (Nb), % 0.5 to 1.5
0
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 0.030