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EN 1.5521 Steel vs. AISI 316N Stainless Steel

Both EN 1.5521 steel and AISI 316N stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.5521 steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
9.0 to 39
Fatigue Strength, MPa 210 to 310
230 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 310 to 360
420 to 690
Tensile Strength: Ultimate (UTS), MPa 430 to 1390
620 to 1160
Tensile Strength: Yield (Proof), MPa 300 to 490
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 630
180 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 49
22 to 41
Strength to Weight: Bending, points 16 to 35
20 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 13 to 41
14 to 26

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 98.9
61.9 to 71.9
Manganese (Mn), % 0.9 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030