Bufab Bulten Stainless AB - Bufab Bulten Stainless AB

Bufab Bulten Stainless AB

With cost efficient purchasing, in-house manufacturing and more than 30 companies world-wide, the Bufab Group is one of the world leading suppliers of Fasteners/Small parts to demanding customers in several different industrial segments.


The business concept is to develop, manufacture, purchase, market and handle a broad range of Fasteners/Small parts. Efficiently distributed on various logistical platforms.


BUMAX® is Bufab's registered trademark, known as the strongest stainless steel bolt in the world. BUMAX® is manufactured in Bufab's own plants in Sweden and meets the requirements of high demanding customers when it comes to quality, corrosion resistance, high strength, traceability and heat resistance, we deliver safety and reliability. Some of the products in the BUMAX®-family are completely unique products that cannot be found anywhere else on the market. All BUMAX® products have full traceability (3.1 certificates available for each item) and are sourced solely from premium European stainless steel manufacturers according to rigid specifications.


The BUMAX® family consist of :


BUMAX® 88 (1.4436)

BUMAX 88 and offers higher mechanical properties and better corrosion resistance than standard A4 due to higher Mo and Ni content. Generally tighter tolerances on all elements as well as lower max limit of trace elements compared with standard A4. PRE 27 and up to class 8.8


BUMAX® 109:

The strongest A4 bolt on the market. Same material as Bumax 88 but higher strength due to special manufacturing process (10.9).


BUMAX® Super Austenite (1.4547). PRE 43

High-alloy austenitic stainless steel for use in seawater and other aggressive chloride-bearing medias. High resistance to general, crevice, pitting and stress corrosion. PRE 43 and up to class 10.9.


BUMAX® Duplex (1.4462).

Bumax Duplex is characterized by excellent strength, ductility and fatigue resistance in combination with good general, pitting, crevice and stress corrosion properties. PRE 36 and up to class 12.9


BUMAX® Super Duplex (1.4410).

Bumax SuperDuplex is characterized by excellent mechanical properties and very good corrosion resistance. Excellent resistance to general, crevice, pitting and stress corrosion in chloride bearing medias. PRE 42 and up to class 12.9


BUMAX® Hyper Duplex (1.4658)

Bumax Hyperduplex is a groundbreaking alloy used in the most demanding applications. Suited for use in severe environments such as hot chlorinated seawater and for aggressive acidic, chloride containing media in chemical, oil, gas and petrochemical industry. Unique product with PRE 49 and up to class 12.9

BUMAX® Ultra:

Made with UNS S 46910.

BUMAX Ultra is a unique precipitation hardenable stainless steel that can be delivered in Ultra high strength levels (1700 MPa). Strongest stainless steel on the market. Good corrosion resistance in chloride environments with PRE 25.


The BUMAX® products are used in industrial segments with extreme requirements regarding material properties and safety and our customers can be found in industries like Oil, Gas and Aerospace.

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Bufab Bulten Stainless AB
Email: [email protected]
URL: www.bumax.se

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