BUMAX® SDX Norsok fasteners are accredited to NORSOK certification and can be provided in super duplex grades.

NORSOK accredited

BUMAX are accredited according to NORSOK M-650, NORSOK M-630 MDS D60 and listed as an approved manufacturer on STATOIL TR2000. BUMAX SDX Norsok can be offered in Super Duplex grades UNS S32750 and UNS S32760 for all types of fastener up to 1½”.

BUMAX SDX Norsok fasteners are produced in Sweden, tested and individually marked with full traceability in accordance with NORSOK M-630 MDS D60 and STATOIL TR2000 VN605.

BUMAX SDX Norsok in stock

BUMAX SDX Norsok Stud bolts and heavy hex nuts in UNS S32760 are in stock up to dimension 1 3/8”. UNS S32750 or other dimensions can be produced on request.


A summary of the properties of BUMAX® SDX Norsok according to the demands in NORSOK M-630 MDS D60 and STATOIL TR2000 VN605.

Other requirements according to NORSOK M-630 MDS D60 and STATOIL TR2000 VN605: ASTM G48 method A corrosion testing, Charpy-V impact strength testing, micrographic examination regarding inter-metallic phases and ferrite content, penetrant testing


Contact us to find out more about BUMAX® SDX Norsok, and the grade can benefit your operations.

BUMAX is available worldwide

Our extensive network of sales offices and distributors makes it easy to get in touch with us. Find your local sales office or distributor below. For other countries not represented, please contact our Main Sales Office.

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