ProductsCF Flanges

UHV Conflat (CF) Flanges

Material Comparison
Stainless Steel Grade304L316LN ESR
Micro-cleanlinessTypically 1.5 of ASTM E45Typically <1.5 ASTM E45
Magnetic PermeabilityTypically <1.1<1.005
Hardness (Brinell)Typically 150170
Temperature Range-190°C to +450°C-190°C to +450°C
 (Can be vacuum fired to +950°C)(Can be vacuum fired to +1050°C)
Pressure Range1 bar to 10-12 mbar1 bar to 10-12 mbar
Typical 316LN Chemical Composition %
Cr - 16.0 to 18.5 %Ni - 12.0 to 14 %
C - < 0.03 %Si - 0.7 to 1.0 %
Mn - 1.5 to 2.0 %Mo - 2.0 to 3.0 %
N - 0.14 to 0.20 %P - 0.045 % max
S - 0.030 % max 

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