ASTM A815 UNS S32205 Duplex Stainless Steel Fittings are high-performance piping components manufactured from UNS S32205 duplex stainless steel, commonly known as Duplex 2205. These fittings combine high mechanical strength with excellent resistance to corrosion, pitting, crevice corrosion and chloride-containing environments.
Our S32205 duplex fittings are designed for demanding piping systems in oil and gas, petrochemical, chemical processing, marine, offshore and other industrial applications. Available products include elbows, tees, reducers, caps, stub ends and crosses, with customized sizes and specifications available according to project requirements.
We supply ASTM A815 S32205 Duplex Fittings with strict material control, dimensional inspection and testing to help ensure reliable performance and consistent installation.
S32205 Chemical Composition
|
Element |
Composition |
|
Carbon (C) |
≤ 0.030% |
|
Chromium (Cr) |
22.00–23.00% |
|
Nickel (Ni) |
4.50–6.50% |
|
Molybdenum (Mo) |
3.00–3.50% |
|
Nitrogen (N) |
0.14–0.20% |
|
Manganese (Mn) |
≤ 2.00% |
|
Silicon (Si) |
≤ 1.00% |
|
Phosphorus (P) |
≤ 0.030% |
|
Sulfur (S) |
≤ 0.020% |
|
Iron (Fe) |
Balance |
ASTM A815 S32205 Fittings Specifications
|
|
Specification |
|
Product |
Duplex Stainless Steel Pipe Fittings |
|
Material |
UNS S32205 |
|
Common Grade |
Duplex 2205 |
|
Material Standard |
ASTM A815/A815M |
|
Dimension Standard |
ASME B16.9 |
|
Fitting Type |
Butt Weld Fittings |
|
Products |
Elbows, Tees, Reducers, Caps, Stub Ends, Crosses |
|
Manufacturing |
Seamless / Welded / Fabricated, depending on product |
|
Size |
NPS 1/2–48 where applicable to ASME B16.9 |
|
Wall Thickness |
SCH 10S, SCH 20S, SCH 40S, SCH 80S, SCH 160, XXS and customized |
|
End Connection |
Butt Weld |
|
Surface |
Pickled, Blasted, Machined or as required |
|
Inspection |
Dimensional, PMI, Mechanical and NDT as required |
|
Certification |
MTC / EN 10204 3.1 or as specified |
UNS S32205 / Duplex 2205 Material
UNS S32205 is a duplex stainless steel grade consisting of both austenitic and ferritic phases. It is widely known as Duplex 2205 and is also associated with EN 1.4462.
The duplex structure provides a useful combination of strength and corrosion resistance. Compared with conventional austenitic stainless steel grades, duplex stainless steels can offer substantially higher strength while maintaining strong corrosion resistance.
The main advantages of UNS S32205 include:
High yield and tensile strength
Good resistance to general corrosion
Good resistance to pitting and crevice corrosion
Good resistance to chloride-containing environments
Good resistance to stress corrosion cracking
Good weldability
Suitable for demanding industrial piping systems
For this reason, Duplex 2205 fittings are frequently selected where both mechanical strength and corrosion resistance are important.
Applications
Oil & Gas
S32205 duplex fittings are suitable for demanding oil and gas piping systems where high strength and corrosion resistance are required.
Petrochemical
Used in process piping and equipment in petrochemical plants.
Chemical Processing
Duplex 2205 provides good corrosion resistance for many chemical processing environments.
Marine & Offshore
Its corrosion resistance makes S32205 suitable for many marine and offshore piping applications, particularly where chloride exposure is a concern.
Pulp & Paper
Duplex stainless steels are used in selected pulp and paper processing environments requiring corrosion-resistant piping components.
Water Treatment & Desalination
S32205 fittings can be used in selected water treatment and desalination systems where corrosion resistance is required.
Power Generation
Used in selected process and utility piping systems in power and energy facilities.
Why Choose Our S32205 Fittings
Qualified Material
We focus on material traceability and grade verification to help ensure that the supplied fittings meet the agreed material specification.
Strict Quality Control
From raw material inspection to final dimensional inspection, each production stage is controlled according to the applicable requirements.
Accurate Dimensions
Controlled forming, machining and final inspection help ensure accurate dimensions and reliable fit-up during installation.
Complete Product Range
We supply elbows, tees, reducers, caps, stub ends, crosses and other S32205 duplex fittings for industrial piping systems.
Custom Manufacturing
Non-standard dimensions, wall thicknesses and special configurations can be manufactured according to drawings and technical requirements.
Inspection & Certification
PMI, mechanical testing, dimensional inspection and applicable NDT can be arranged according to project requirements.
Export-Oriented Packaging
Products are properly protected and packed for international transportation to reduce the risk of damage during shipment.
FAQ
Is UNS S32205 the same as Duplex 2205?
+
-
UNS S32205 is commonly marketed as Duplex 2205. It belongs to the duplex stainless steel family and is also associated with EN 1.4462.
What is the standard for S32205 butt weld fittings?
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The material/manufacturing specification is ASTM A815/A815M. For factory-made wrought butt-welding fitting dimensions, ASME B16.9 is commonly applicable.
Are S32205 fittings suitable for corrosive environments?
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Yes. Duplex 2205 offers good resistance to general corrosion, pitting, crevice corrosion and chloride-containing environments. However, suitability must be evaluated against the actual medium, concentration, temperature, pressure and service conditions.
Can you provide MTC?
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-
Yes. Material Test Certificates and other inspection documents can be supplied according to the agreed order requirements.
Can you manufacture customized S32205 fittings?
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Yes. Custom dimensions, wall thicknesses, configurations and drawings can be reviewed according to project requirements.
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