ASTM A815 S32205-S Duplex Stainless Steel Concentric Reducer, Buttweld Fittings B16.9

• YUHONG brand goods have been already exported to more than 85 countries With more than 35 years' experience, because of strict quality control policy, excellent sales service, delivery on time. YUHONG won more and more new clients and got more and more repeat orders from old clients, in YUHONG People's mind: Quality is First Important!

ASTM A815 S32205-S Duplex Stainless Steel Concentric Reducer, Buttweld Fittings B16.9

The ASTM A815 S32205-S Duplex Stainless Steel Concentric Reducer is a pipe fitting manufactured in accordance with ASTM A815/A815M standard. This Specification is for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings.

It specifically made from duplex stainless steel grade S32205 (2205) with the "S" suffix indicating seamless manufacturing. This reducer features a conical shape with concentric ends, ensuring a symmetrical reduction in pipe diameter while maintaining alignment of the centerline. It is designed for high-pressure and corrosive service applications, leveraging the dual-phase microstructure of duplex stainless steel for enhanced strength, chloride stress corrosion cracking resistance, and corrosion resistance in aggressive environments.

1.Chemical & Mechanical Properties

Mechanical Properties

2. Key Adventages

• The duplex microstructure provides approximately twice the yield strength of standard austenitic stainless steels (e.g., 304/316), allowing for thinner walls and lighter weight fittings while maintaining pressure ratings.
• Offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments containing chlorides, acids, and sulfides. Performance exceeds that of 316L.
• Particularly resistant to chloride-induced stress corrosion cracking, a common failure mode for standard austenitic steels in harsh environments (e.g., offshore, chemical processing).
• Combines high strength with good toughness and ductility over a wide temperature range, suitable for demanding applications from cryogenic to moderately elevated temperatures.

3. Key Applications

• Oil & Gas Industry
• Chemical & Petrochemical Processing
• Marine & Offshore Engineering
• Pulp & Paper Industry
• Pollution Control & Desalination
• Energy & Power Generation

Pipe Fittings Specification

ASTM A815 duplex steel reducer

S32205-S buttweld fittings

B16.9 stainless steel reducer

ASTM A815 S32205-S Duplex Stainless Steel Concentric Reducer, Buttweld Fittings B16.9 Images