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EN 1.4557 Stainless Steel vs. EN 1.4859 Stainless Steel

Both EN 1.4557 stainless steel and EN 1.4859 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4557 stainless steel and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
23
Fatigue Strength, MPa 260
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 560
490
Tensile Strength: Yield (Proof), MPa 300
210

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
560
Maximum Temperature: Mechanical, °C 1090
1050
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 29
36
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.6
6.2
Embodied Energy, MJ/kg 76
88
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 45
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
91
Resilience: Unit (Modulus of Resilience), kJ/m3 210
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 4.0
3.4
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0 to 0.020
0.050 to 0.15
Chromium (Cr), % 19.5 to 20.5
19 to 21
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
40.3 to 49
Manganese (Mn), % 0 to 1.2
0 to 2.0
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 17.5 to 19.5
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0.5 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030