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ansi b16.5 carbon steel flange A350 LF2 plate-flat flange from china factory A350 LF3

These ASTM A350 Flanges LF3 are suitable for use down to 150oF (LF3). These LTCS A350 LF3 orifice plate flanges are basically used in high energy/high temperature channel systems.

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All LTCS A350 LF3 flanges are available in raised face or flat face configuration (but are suitable for lap flanges). B16.5 LTCS A350 LF3 butt weld flanges have a working pressure of approximately 2.4 times the flange rating at ambient temperature. Pipe flanges made from ASTM A350 Grade LF3 are typically used for low temperature service with notch toughness testing requirements. ASTM A350 Grade LF3 refers to a low alloy steel known as “3.5% Nickel Steel” or “3.5-Ni Steel”. The addition of intentionally controlled nickel content can reduce the brittle-ductile transition temperature, thereby significantly improving its low temperature notch toughness. lf3 cryogenic flanges are available for applications where metals are exposed to cryogenic environments. For carbon steel based a350 lf3 flange slips that can be used down to -20¡ãF, quite a few metal grades are known to fail.

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