Monday, 27 December 2010

High Alloy Valve Supplier Spearheads Use of Corrosion Resistant High Alloys in Petrochemical Process



The Alloy Valve Stockist, the Barcelona-based stockist of alloy valves, is spearheading an initiative that studies the use of forged super duplex valves in A182 F53, A182 F55 and cast super duplex valves in A890 6A and A890 5A for corrosive processes

The Alloy Valve Stockist, the Barcelona-based stockist of alloy valves, is spearheading an initiative that studies the use of forged super duplex valves in A182 F53, A182 F55 and cast super duplex valves in A890 6A and A890 5A for corrosive processes.

Alloy SAF 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion. A detailed overview of the corrosion resistance properties of super duplex can be found on

Nuria González, who heads the initiative team, commented that "the use of super duplex valves as opposed to duplex valves, for corrosive applications is still relatively rare, despite the higher corrosion resistance of super duplex valve and the often negligible price difference." The Alloy Valve Stockists' super duplex valve specialist site, , offers further details of the initiative.

They generally stock the following material range: A182 F347H, A182 F44, A182 F51, A182 F53, A182 F55, A182 F91, 254 SMO, 6moly, inconel 600, 625, UNS N06600, UNS N06625, A890 Gr. 4A, duplex 2205, A890 Gr. 5A, A890 Gr. 6A, titanium A182 316Ti, titanium Gr. 2, B367, B381, Alloy 20, A351 CN7M, Carpenter 20, UNS N08020, Monel 400, K500, A494 M35-1, UNS N04400, 904L, Avesta, inconel 600, inconel 625, UNS N06600, UNS N06625, incoloy 800, 800H, 800HT, 825, UNS N08800, UNS N08825, hastelloy C276, B3, A494 CW12MW, A182 F11, A182 F22, A351 CG8M, and A494-CY40. Their website, forms an integral part of the initiative.

They supply valves in ANSI and DIN standards, in a wide range of sizes and pressure ratings, and stock premium brand valves, approved leading oil, gas and chemical companies. Their customers are end users and engineering firms, from the chemical and petrochemical sectors in the Middle East, Europe and Asia.

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Grupo Compás is a premier alloy valve stockist of duplex, super duplex, alloy 20, monel alloy 400, hastelloy, inconel alloy 600 and incoloy alloy 800 valves in stock, and can also offer them on short manufactuing lead times.