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Christmas tree body

The tree body is part of the submarine oil and gas tree. The part is part of the tree assembly for monitoring and controlling the production of subsea wells while also managing the liquid or gas injected into the well.

Its main function is to control the flow or airflow from the wellbore. It also provides an interface for fixing valves in many different configurations.

Part composition and characteristics


AISO/SAE 4140, F22, 8630 steel

Inconel 625 surfacing


Up to 1.5 x 1.5 x 2.75 m (5 x 5 x 9 feet)

Up to 7 metric tons

200 - 220 Hb

Cladding 42–45 HRC

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