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EN 1.4539 Stainless Steel vs. EN 1.4821 Stainless Steel

Both EN 1.4539 stainless steel and EN 1.4821 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 73% of their average alloy composition in common. There are 33 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 1.4539 stainless steel and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
18
Fatigue Strength, MPa 220
280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
79
Shear Strength, MPa 430
450
Tensile Strength: Ultimate (UTS), MPa 630
730
Tensile Strength: Yield (Proof), MPa 260
450

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
15
Density, g/cm3 8.1
7.6
Embodied Carbon, kg CO2/kg material 5.7
2.9
Embodied Energy, MJ/kg 78
41
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 36
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
500
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.2
4.6
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.020
0.1 to 0.2
Chromium (Cr), % 19 to 21
24.5 to 26.5
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 43.1 to 51.8
64.2 to 71.1
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
3.5 to 5.5
Nitrogen (N), % 0 to 0.15
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0.8 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.015