Wye pieces

We supply wye pieces produced by hot isostatic pressing (PM HIP). By using wye pieces produced by PM HIP, weight can be reduced significantly compared to wye pieces produced by casting or forging.

Sandvik HIP products acquired by MTC

Sandvik’s HIP products has been acquired by MTC from April 6, 2020. Over the coming months MTC will be integrating the Sandvik portfolio, to provide a smooth transition for customers. During the integration period, the full line of Sandvik HIP products will continue to be accessible on this website, or via the MTC website.

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Excellent resistance to HISC

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

Case in brief

A large subsea wye piece in UNS S31803 duplex stainless steel was a challenging order, requiring a great deal of design work, stress analysis and 3D finite element analysis.

40% weight reduction

If made conventionally by casting or forging, the piece would have been oversized and likely weighed some 3.5 tonnes to withstand the 250 bar design pressure. But powder metallurgically based hot isostatic pressing (PM HIP) allows for a significant degree of optimization, and the finished piece weighed only 2 tonnes. This means that a 40% weight reduction was achieved on the wye piece using hot isostatic pressing (HIP).

Example of wye piece produced by Sandvik hot isostatic pressing (HIP)
Wye piece
Customer/field Rockwater, UK/East Spar
Material UNS 31803, 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