HIP products for offshore applications

The unique properties of Sandvik HIP products makes them specially suitable for offshore applications. Examples of Sandvik HIP products in near-net shape for offshore applications are:

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Excellent resistance to HISC

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

Isotropic properties

The fine microstructure and isostatic pressure with which the HIP products are processed result in isotropic mechanical properties, in other words, properties that are equal in all directions. The isotropic properties can contribute to, for example, lighter constructions.

Some examples of Sandvik HIP products for offshore applications

Manifold/manifold system
Customer/field Scomark, UK / 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
Valve body
Customer/field Different customers
Material UNS S31803, duplex stainless steel alt. UNS S32760, super-duplex stainless steel, UNS S31254
Weight 250-2000 kg/piece
Elbow riser
Customer/field Sofec, US / Terra Nova, Canada
Material Alternative depending on atmosphere; UNS
S31803, duplex stainless steel alt. UNS S32760, super-duplex stainless steel
Dimensions Length 900 mm, OD 350-550 mm, ID 250 mm
Length 35.4 in., OD 18.8-21.6 in., ID 9.8 in.
Weight 160-450 kg/piece
Mixerhouse
Customer/field FRAMO, Norway / Gullflaks, North Sea
Material Two different materials in one piece, super-duplex/duplex stainless steel, UNS S32760/UNS S31803
Dimensions Length 1800 mm, OD 750-900 mm, ID 550 mm
Length 71 in., OD 29.5-35.4 in., ID 21.6 in.
Weight 1-3 tonnes/piece
Wye piece
Customer/field Rockwater, UK / East Spar
Material UNS S31803, duplex stainless steel
Dimensions Length 2000 mm, OD 450 mm, ID 350 mm
Length 78.7 in., OD 17.7 in., ID 18.8 in.
Weight 2 tonnes/piece