Alloy 2507

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of alloy 2507 in China. With abundant experience, we warmly welcome you to wholesale customized alloy 2507 from our factory. For price consultation, contact us.

Alloy 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.

2507 Duplex Stainless Steel Applications:

Oil and gas industry equipment

Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems

Chemical process industries, heat exchangers, vessels, and piping

Desalination plants, high pressure RO-plant and seawater piping

Mechanical and structural components, high strength, corrosion-resistant parts

Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping

Corrosion Resistance

2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides. Alloy 2507 is highly resistant to carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.

What are the characteristics of Duplex 2507?

High resistance to chloride stress corrosion cracking

High Strength

Superior resistance to chloride pitting and crevice corrosion

Good general corrosion resistance

Suggested for applications up to 600° F

Low rate of thermal expansion

Combination of properties given by austenitic and ferritic structure

Good weldability and workability

Chemical Composition, %

In what applications is Duplex 2507 used?

Desalination Equipment

Chemical process pressure vessels, piping and heat exchangers

Marine Applications

Flue Gas Scrubbing Equipment

Pulp & Paper Mill Equipment

Offshore Oil production/technology

Oil and gas industry equipment

ASTM Specifications

Mechanical Properties

Specified Tensile Properties, Plate ASTM A240

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