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AISI 309S Stainless Steel vs. EN 1.8505 Steel

Both AISI 309S stainless steel and EN 1.8505 steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 309S stainless steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
13
Fatigue Strength, MPa 210
540
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 400
630
Tensile Strength: Ultimate (UTS), MPa 580
1050
Tensile Strength: Yield (Proof), MPa 230
860

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1080
440
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.6
Embodied Energy, MJ/kg 51
22
Embodied Water, L/kg 170
65

Common Calculations

PREN (Pitting Resistance) 23
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1950
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
37
Strength to Weight: Bending, points 20
30
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.080
0.28 to 0.35
Chromium (Cr), % 22 to 24
1.5 to 1.8
Iron (Fe), % 58.1 to 66
95.4 to 97.1
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.4
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 0.035