Super Duplex UNS S32550 Reducing Tee with PREN ≥ 40 and ASME B16.9 Butt Weld Tee for High-Strength Applications
Price:
Negotiable
MOQ:
1PC
Delivery Time:
15-30 Workdays
Brand:
TOBO
Product Description
Super Duplex UNS S32550 F55 255 Alloy Stainless Steel Reducing Tee Butt Weld ASME B16.9 2" to 12" SCH80S
Super Duplex UNS S32550 / F55 / 255 Alloy Stainless Steel Reducing Tee
TOBO offers premium Super Duplex UNS S32550 (F55 / 255 Alloy) stainless steel reducing tees for the most demanding corrosive and high-strength applications. With superior pitting resistance equivalent number (PREN ≥ 40) and excellent mechanical properties, this fitting excels in chlorinated seawater, chemical processing, and offshore environments.
Product Specifications
- Product: Super Duplex Stainless Steel Reducing Tee
- Material Grade: UNS S32550 / F55 / 1.4507 / 255 Alloy
- Size Range: 2" - 12" (DN50 - DN300) Butt Weld
- Wall Thickness: SCH10S, SCH40S, SCH80S, SCH160
- Type: Reducing Tee, Seamless Construction
- Standards: ASTM A815, ASME B16.9, NACE MR0175/ISO 15156
UNS S32550 Chemical Composition
| Element | C | Cr | Ni | Mo | N | Cu | W | Mn | Si |
|---|---|---|---|---|---|---|---|---|---|
| Content (%) | ≤0.04 | 24.0-27.0 | 4.5-6.5 | 2.9-3.9 | 0.10-0.25 | 1.5-2.5 | 0.5-1.0 | ≤1.5 | ≤1.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 760 MPa (110 ksi) |
| Yield Strength (0.2%) | ≥ 550 MPa (80 ksi) |
| Elongation | ≥ 15% |
| Hardness | ≤ 290 HB |
| PREN | ≥ 40 |
Key Advantages
- Exceptional Pitting Resistance: PREN ≥ 40 provides outstanding performance in chloride-rich and seawater environments
- High Strength: Yield strength double that of standard austenitic 316L, allowing reduced wall thickness designs
- Sour Service Qualified: Compliant with NACE MR0175/ISO 15156 for H2S-containing environments
- Stress Corrosion Cracking Resistance: Superior to conventional stainless steels in hot chloride environments
- Full Third-Party Inspection: UT, PT, RT, and PMI testing available upon request
Applications
Offshore oil and gas platforms, seawater cooling systems, desalination plants, chemical tankers, FPSO vessels, subsea manifolds, pulp and paper digesters, pollution control scrubbers
Reducing Tee Dimension Reference
| Run x Branch | DN (Run x Branch) | OD Run (inch) | OD Branch (inch) | Center to End C (inch) |
|---|---|---|---|---|
| 3" x 2" | 80 x 50 | 3.500 | 2.375 | 3.38 |
| 4" x 2" | 100 x 50 | 4.500 | 2.375 | 4.13 |
| 4" x 3" | 100 x 80 | 4.500 | 3.500 | 4.13 |
| 6" x 3" | 150 x 80 | 6.625 | 3.500 | 5.63 |
| 6" x 4" | 150 x 100 | 6.625 | 4.500 | 5.63 |
| 8" x 4" | 200 x 100 | 8.625 | 4.500 | 7.00 |
| 8" x 6" | 200 x 150 | 8.625 | 6.625 | 7.00 |
| 10" x 6" | 250 x 150 | 10.750 | 6.625 | 8.50 |
| 10" x 8" | 250 x 200 | 10.750 | 8.625 | 8.50 |
| 12" x 8" | 300 x 200 | 12.750 | 8.625 | 10.00 |
| 12" x 10" | 300 x 250 | 12.750 | 10.750 | 10.00 |
Additional Information
Packing: Plywood case with individual protection
H.S Code: 73072300
Contact TOBO for UNS S32550 super duplex fitting quotations and mill test certificates.
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Company
TOBO STEEL GROUP CHINA
Location
2F,Building7,Baolong Center,No.689,Xiwang Road,Jiading District,Shanghai,201800,China
Contact Person
Joy Wang