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AISI 309 Stainless Steel vs. EN 1.8515 Steel

Both AISI 309 stainless steel and EN 1.8515 steel are iron alloys. They have 66% 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 1.8515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 47
11
Fatigue Strength, MPa 250 to 280
580
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 420 to 470
680
Tensile Strength: Ultimate (UTS), MPa 600 to 710
1130
Tensile Strength: Yield (Proof), MPa 260 to 350
940

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
470
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
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.5
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
60

Common Calculations

PREN (Pitting Resistance) 23
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
2310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
40
Strength to Weight: Bending, points 20 to 23
31
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 14 to 16
33

Alloy Composition

Carbon (C), % 0 to 0.2
0.28 to 0.35
Chromium (Cr), % 22 to 24
2.8 to 3.3
Iron (Fe), % 58 to 66
94.7 to 96.5
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 12 to 15
0 to 0.3
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