Super Duplex Stainless Steel 2507 Tube: supplier, stockist and exporter in Mumbai, India
Rajgranth Metal & Alloys supplies super duplex stainless steel 2507 tube (UNS S32750) from Mumbai and exports it to 18 markets.
What is Super Duplex 2507 tube?
Tube is specified by actual outside diameter and wall thickness, and covers thin walls and, in welded form, square and rectangular sections that pipe schedules do not reach. Super Duplex 2507 tube is bought for heat exchangers, instrumentation, process lines and structural and decorative work. Super Duplex 2507 (UNS S32750, EN 1.4410) is a high-alloy duplex stainless steel with 25 percent chromium, 7 percent nickel, 4 percent molybdenum and nitrogen. Its pitting resistance equivalent is above 40, which puts it in the seawater and aggressive chloride class.
Rajgranth Metal & Alloys lists Super Duplex 2507 among the grades it supplies and exports from Mumbai.
Super Duplex 2507 designations and equivalents
| Standard | Designation |
|---|---|
| UNS | S32750 |
| EN / Werkstoff | 1.4410 |
| Also called | 2507, S32750 |
Scroll the table horizontally to see all columns.
Super Duplex 2507 chemical composition
Limits are those of the standard named in the table caption. Product-specific standards for pipe, tube and bar carry their own limits, so always confirm the composition on the mill test certificate supplied with the material.
| Element | Carbon | Manganese | Silicon | Phosphorus | Sulphur | Chromium | Nickel | Molybdenum | Copper | Nitrogen |
|---|---|---|---|---|---|---|---|---|---|---|
| Limit | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 6.00 – 8.00 | 3.00 – 5.00 | 0.50 max | 0.24 – 0.32 |
Scroll the table horizontally to see all columns.
Super Duplex 2507 mechanical properties
| Property | Requirement |
|---|---|
| Tensile strength | 795 MPa minimum |
| Yield strength (0.2% offset) | 550 MPa minimum |
| Elongation in 50 mm | 15% minimum |
| Hardness | 32 HRC maximum (310 HBW) |
Scroll the table horizontally to see all columns.
Super Duplex 2507 tube: sizes and finishes
The published size range, finishes and conditions for tube are set out on the seamless tubes and welded tubes pages, which list every dimension we publish. Sizes outside the range can be produced to order; send the dimensions with your enquiry.
| Parameter | Range |
|---|---|
| Seamless Tubes: Outside diameter | 3.1, 76.2 (mm — larger sizes to order) |
| Seamless Tubes: Wall thickness | 0.71 to 8.0 (SWG, mm) |
| Seamless Tubes: Length | 5 m, 6.5 m (Customised up to 12 m per requirement) |
| Seamless Tubes: Tube ends | Plain, Bevelled |
| Seamless Tubes: Marking | Size, Grade, Specification, Heat number |
| Welded Tubes: Outside diameter | 4.7, 76.2 (mm — larger sizes to order) |
| Welded Tubes: Wall thickness | 0.5 to 3.0 (mm) |
| Welded Tubes: Length | 5 m, 6.5 m (Customised per requirement) |
| Welded Tubes: Tube ends | Plain, Bevelled |
Scroll the table horizontally to see all columns.
Standards for Super Duplex 2507 tube
Super Duplex 2507 tube is commonly specified to ASTM A789 / ASME SA-789. Commonly specified product standards. Confirm the standard, edition and any supplementary requirements on your order; we supply to the standard you name.
Why buyers choose Super Duplex 2507 tube
Very high strength, with a 550 MPa minimum yield strength
PREN above 40 for seawater and chloride service
Good resistance to stress corrosion cracking
Where Super Duplex 2507 tube is used
- Subsea and offshore oil and gas piping
- Seawater cooling and firewater systems
- Desalination high-pressure pipework
- Heat exchangers in chloride service
- Chemical process equipment
What to state when you enquire for Super Duplex 2507 tube
- Outside diameter and wall thickness in mm, and tolerance class
- Seamless or welded
- Section: round, square or rectangular (welded)
- Length, and whether cut to length
- Finish: bright annealed, solution annealed, polished or electropolished
- The standard, and the test certificate required
What to check on Super Duplex 2507 tube before and after delivery
On Super Duplex 2507 tube, wall-thickness tolerance, ovality and surface condition decide acceptance, so measure them on the first delivery. For heat-exchanger and instrument duty check the tolerance class and the cleanliness of the bore against your specification. Confirm the composition on the mill test certificate. Grade limits to design around: not for continuous service above about 250 degrees C and needs qualified welding procedures and control of heat input.
Export of Super Duplex 2507 tube from India
Super Duplex 2507 tube is exported from Mumbai to 18 confirmed markets, quoted with the Incoterm and named port.
Super Duplex 2507 compared with similar grades
Buyers who look at Super Duplex 2507 tube usually also compare Duplex 2205 and Super Duplex S32760. The grade pages below give each one's designations, properties and limits side by side so you can choose for the service rather than the price alone.
FAQ
09Questions answered
- What does PREN above 40 mean?
- PREN is a ranking figure for pitting resistance from chromium, molybdenum and nitrogen content. Above 40 is the usual threshold for grades called super duplex.
- How does 2507 compare with 2205?
- 2507 has more chromium, molybdenum and nitrogen, so it resists chlorides better and is stronger, at a higher price.
- Is super duplex difficult to weld?
- It needs qualified procedures and controlled heat input to keep the phase balance, but it is routinely welded in offshore fabrication.
- What tolerance can Super Duplex 2507 tube be supplied to?
- Outside diameter and wall tolerances depend on the product standard and the manufacturing route. State the tolerance class you need and we confirm whether it can be supplied.
- Which standard applies to Super Duplex 2507 tube?
- Super Duplex 2507 tube is commonly specified to ASTM A789 / ASME SA-789. Confirm the standard and edition on your order.
- What is the minimum yield and tensile strength of Super Duplex 2507?
- In the annealed condition, Super Duplex 2507 has a minimum yield strength of 550 MPa and a minimum tensile strength of 795 MPa, per the standard named in the table above.
- What is the UNS number and EN designation of Super Duplex 2507?
- Super Duplex Stainless Steel 2507 is designated UNS S32750 and EN 1.4410, and is also called 2507 and S32750.
- What are the main alloying elements in Super Duplex 2507?
- To the standard in the composition table, Super Duplex 2507 carries chromium 24.00 – 26.00, nickel 6.00 – 8.00 and molybdenum 3.00 – 5.00 percent by weight. Confirm the composition on the mill test certificate supplied with your material.
- Do you supply a mill test certificate with Super Duplex 2507 tube?
- Yes, to EN 10204 3.1 as standard, showing chemistry and mechanical properties against the heat. EN 10204 3.2 with third-party inspection is available on request.
Products
Compare
Export
Industries
Guides
Send us the specification.
Grade, dimensions, quantity and standard. We will come back with availability and price.