UNS S32750 / Alloy 2507 Duplex Stainless Steel Pipe Tube SS Pipe for High Pressure Equipment
Price:
7-10 USD/Kg
MOQ:
500 kgs
Delivery Time:
5 - 12 days based on the quantity
Brand:
DELTA
Product Description
UNS S32750 / Alloy 2507 Duplex Stainless Steel Pipe Tube SS Pipe for High Pressure Equipment
Products Specification
| Products Name | Duplex 2507 Stainless Steel Seamless Pipe |
Grade: |
304 304L 309S 310S 314 315 316L 316Ti 317L 321 329 347H 410 2205 2507 S32760 904L 254SMO and equal grade in GB JIS EN DIN Standard |
| Standards: | ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b,ect. ASTM A790 |
| DIN 17456-85 DIN 17458-85 DIN 17459-92.ect | |
| JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect. | |
| GB13296-1991 GB14975-2002 GB14976-2002,ect. | |
| Size: | ND5 - DN400 |
| Length: | 6m length or cutting any length as request |
| Applications: | fluid and gas transport, structure , boiler, heat exchanger, super heater |
UNS S32750, also known as Alloy 2507, is a super duplex stainless steel pipe/tube renowned for its exceptional combination of strength, corrosion resistance, and toughness. This material is classified as a duplex stainless steel, meaning it has a microstructure consisting of approximately 50% austenite and 50% ferrite, which gives it advantages over both austenitic and ferritic stainless steels. Specifically designed to perform under high-pressure and aggressive environments, 2507 duplex stainless steel pipes are widely used in industries where reliability and durability under extreme conditions are critical.
Chemical Composition (Weight %) of Duplex 2507 Stainless Steel Pipe
| Element | Content Range |
|---|---|
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Nitrogen (N) | 0.14 - 0.20 |
| Iron (Fe) | Balance |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.02 |
Mechanical Properties of Duplex 2507 Stainless Steel Pipe
| Property | Value |
|---|---|
| Tensile Strength | ≥ 800 MPa |
| Yield Strength (0.2% offset) | ≥ 550 MPa |
| Elongation | ≥ 15% |
| Hardness (Rockwell C) | ≤ 31 |
| Impact Strength (Charpy V-notch, -40°C) | ≥ 40 J |
Key Features of Duplex 2507 Stainless Steel Pipe
- Excellent Corrosion Resistance: Resistant to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich environments (e.g., seawater, brines).
- High Strength: Twice the yield strength of austenitic stainless steels (e.g., 316L), allowing for thinner wall designs and reduced weight in high-pressure applications.
- Good Toughness: Maintains ductility and impact resistance even at low temperatures.
- Weldability: Can be welded using standard methods (e.g., TIG, MIG) with proper procedure control to preserve duplex microstructure.
- Cost-Effective: Offers a balance of performance and cost compared to higher-nickel alloys (e.g., super austenitic stainless steels).
Standards of Duplex 2507 Stainless Steel Pipe
2507 duplex stainless steel pipes/tubes are manufactured in compliance with various international standards, including:
- ASTM A789 / A789M (Seamless and Welded Ferritic/Austenitic Duplex Stainless Steel Tubing for General Service)
- ASTM A790 / A790M (Seamless and Welded Ferritic/Austenitic Duplex Stainless Steel Pipe for General Service)
- ASME SA789 / SA790
- EN 10216-5 (Welded duplex stainless steel tubes for pressure purposes)
- DIN 17458 (Duplex stainless steel pipes)
Equivalent Grades of Duplex 2507 Stainless Steel Pipe
- UNS S32750
- EN 1.4410
- DIN X2CrNiMoN25-7-4
- JIS SUS 2507
Applications of Duplex 2507 Stainless Steel Pipe
Due to its high strength and corrosion resistance under pressure, 2507 duplex stainless steel pipes are ideal for:
- Oil and gas industry: Offshore drilling equipment, subsea pipelines, and high-pressure wellhead components.
- Chemical processing: Reactors, heat exchangers, and piping handling corrosive chemicals (e.g., acids, chlorides).
- Desalination plants: Seawater intake and reverse osmosis systems.
- Pulp and paper industry: Bleaching systems and processing equipment.
- Power generation: High-pressure boilers and flue gas desulfurization systems.
- Marine engineering: Ship hulls, ballast tanks, and offshore structures.
Export Packaging & Transportation
-
Packaging:
- Pipes are typically bundled with steel straps, wrapped in waterproof plastic film or Hessian cloth to prevent moisture and scratches.
- For small-diameter tubes, they may be packed in wooden crates or pallets with foam inserts for added protection.
- Each bundle or crate is labeled with details such as material grade, size, quantity, heat number, and certification (e.g., Mill Test Report).
-
Transportation:
- Shipped by sea in containers (20ft or 40ft) for long-distance international transport.
- For land transport, trucks or railcars are used, with proper securing to avoid movement during transit.
- Special handling is provided for large-diameter or heavy-wall pipes to ensure structural integrity.
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben