Super Duplex Stainless Steel 2507 Coil: supplier, stockist and exporter in Mumbai, India
Rajgranth Metal & Alloys supplies super duplex stainless steel 2507 coil (UNS S32750) from Mumbai and exports it to 18 markets.
What is Super Duplex 2507 coil?
Coil is flat-rolled material supplied wound on a core, for processors who slit, blank or roll-form it. Super Duplex 2507 coil is bought by tube mills, press shops and fabricators that need continuous feedstock. 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 |
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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 |
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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) |
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Super Duplex 2507 coil: sizes and finishes
The published size range, finishes and conditions for coil are set out on the coils pages, which list every dimension we publish. Sizes outside the range can be produced to order; send the dimensions with your enquiry.
| Parameter | Range |
|---|---|
| Thickness | 0.3 mm, 8 mm |
| Width | 100 mm, 2000 mm |
| Coil ID | 508 mm, 610 mm |
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Standards for Super Duplex 2507 coil
Super Duplex 2507 coil is commonly specified to ASTM A240 / ASME SA-240 and ASTM A480. 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 coil
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 coil 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 coil
- Thickness in mm, 0.3 mm to 8 mm published, and width, 100 mm to 2000 mm published
- Coil inner diameter: 508 mm or 610 mm
- Coil weight, or the maximum your uncoiler takes
- Surface finish and whether film is required
- Edge: mill edge or slit edge
- The standard and the test certificate required
What to check on Super Duplex 2507 coil before and after delivery
On Super Duplex 2507 coil, check edge condition, camber and coil set on the first delivery, since these decide how the material runs on your line. Confirm the inner diameter and coil weight against your uncoiler before ordering, and the certificate chemistry, because a whole production run inherits it. 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 coil from India
Super Duplex 2507 coil 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 coil 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 coil sizes of Super Duplex 2507 do you supply?
- The published range is thickness from 0.3 mm to 8 mm and width from 100 mm to 2000 mm, on a coil inner diameter of 508 mm or 610 mm. Send the requirement and we confirm.
- Which standard applies to Super Duplex 2507 coil?
- Super Duplex 2507 coil is commonly specified to ASTM A240 / ASME SA-240 and ASTM A480. 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 coil?
- 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.
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