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EN 1.4618 Stainless Steel vs. S66286 Stainless Steel

Both EN 1.4618 stainless steel and S66286 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
17 to 40
Fatigue Strength, MPa 240 to 250
240 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 480 to 500
420 to 630
Tensile Strength: Ultimate (UTS), MPa 680 to 700
620 to 1020
Tensile Strength: Yield (Proof), MPa 250 to 260
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
780
Maximum Temperature: Mechanical, °C 900
920
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.7
6.0
Embodied Energy, MJ/kg 39
87
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
190 to 1150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 25
22 to 36
Strength to Weight: Bending, points 22 to 23
20 to 28
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15 to 16
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 16.5 to 18.5
13.5 to 16
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
49.1 to 59.5
Manganese (Mn), % 5.5 to 9.5
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 4.5 to 5.5
24 to 27
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5