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EN 1.4821 Stainless Steel vs. AISI 316N Stainless Steel

Both EN 1.4821 stainless steel and AISI 316N stainless steel are iron alloys. They have 90% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4821 stainless steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
9.0 to 39
Fatigue Strength, MPa 280
230 to 450
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 450
420 to 690
Tensile Strength: Ultimate (UTS), MPa 730
620 to 1160
Tensile Strength: Yield (Proof), MPa 450
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
19
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.9
3.9
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 500
180 to 1880
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 26
22 to 41
Strength to Weight: Bending, points 23
20 to 31
Thermal Diffusivity, mm2/s 4.6
4.1
Thermal Shock Resistance, points 21
14 to 26

Alloy Composition

Carbon (C), % 0.1 to 0.2
0 to 0.080
Chromium (Cr), % 24.5 to 26.5
16 to 18
Iron (Fe), % 64.2 to 71.1
61.9 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 3.5 to 5.5
10 to 14
Nitrogen (N), % 0 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0.8 to 1.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030