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AISI 316 Stainless Steel vs. EN 1.1221 Steel

Both AISI 316 stainless steel and EN 1.1221 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 (5, in this case) are not shown.

For each property being compared, the top bar is AISI 316 stainless steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 360
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 8.0 to 55
10 to 21
Fatigue Strength, MPa 210 to 430
240 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Shear Strength, MPa 350 to 690
450 to 520
Tensile Strength: Ultimate (UTS), MPa 520 to 1180
730 to 870
Tensile Strength: Yield (Proof), MPa 230 to 850
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 590
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 260
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 1820
410 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18 to 41
26 to 31
Strength to Weight: Bending, points 18 to 31
23 to 26
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 11 to 26
23 to 28

Alloy Composition

Carbon (C), % 0 to 0.080
0.57 to 0.65
Chromium (Cr), % 16 to 18
0 to 0.4
Iron (Fe), % 62 to 72
97.1 to 98.8
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.1
Nickel (Ni), % 10 to 14
0 to 0.4
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035

Comparable Variants