We supply manifolds produced by hot isostatic pressing (PM HIP). The manifolds are used for collecting oil/gas from wellheads as well as for water injection.

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Because manifolds are subjected to sour service and high pressure, high mechanical strength and corrosion resistance are required characteristics of the manifolds material.

Sandvik uses a hot isostatic pressing (HIP) manufacturing method based on powder metallurgy to ensure the required high mechanical strength of the components. The materials used are duplex and super-duplex stainless steels, austenitic stainless steels or nickel alloys, the best choices for sour service.

Excellent resistance to HISC

By using pure duplex, super-duplex or nickel alloy powder and powder metallurgically based hot isostatic pressing (PM HIP), Sandvik HIP products have excellent resistance to corrosion and hydrogen-induced stress cracking (HISC). Sandvik HIP products' resistance to HISC is documented in DNV RP-F112.

Example of manifold produced by Sandvik by hot isostatic pressing (HIP)

Manifold/manifold system
Customer/field Scomark, England/Marathon, East Brae, North Sea
Material UNS S31803, duplex stainless steel alt. UNS S32760, super-duplex stainless steel
Dimensions 400 mm (ID 16 in.)
Weight 1-4 tonnes/piece

Oil company increases manifold reliability and service life by using HIP products.