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AISI 309 Stainless Steel vs. EN 1.7366 Steel

Both AISI 309 stainless steel and EN 1.7366 steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 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 AISI 309 stainless steel and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 47
17 to 19
Fatigue Strength, MPa 250 to 280
160 to 320
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 420 to 470
290 to 440
Tensile Strength: Ultimate (UTS), MPa 600 to 710
460 to 710
Tensile Strength: Yield (Proof), MPa 260 to 350
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 980
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.7
Embodied Energy, MJ/kg 51
23
Embodied Water, L/kg 170
69

Common Calculations

PREN (Pitting Resistance) 23
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
140 to 600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
16 to 25
Strength to Weight: Bending, points 20 to 23
17 to 23
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 14 to 16
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.18
Chromium (Cr), % 22 to 24
4.0 to 6.0
Iron (Fe), % 58 to 66
91.9 to 95.3
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015