Duplex Steel Supplier in Chennai

Duplex and Super Duplex Supplier for Chennai: 2205 and 2507 from Mumbai Stock

Ganesh Metals supplies duplex 2205 (UNS S31803 / S32205) and super duplex 2507 (UNS S32750) to Chennai as plate, sheet, coil, round bar, pipe, tube, flanges, fittings and forgings. We have been a stockist, supplier and processor in Mumbai since 1992, and the mill's original EN 10204 3.1 certificate comes with each order.

We provide direct door delivery to your company in Chennai. Duplex is packed in Mumbai and delivered to your company's door, after we agree the dispatch plan with you. For project work, tell us your specification and any extra tests needed, such as ferrite count or impact tests, and we confirm what can be certified before we quote. Door delivery across Chennai's industrial areas: We provide direct door delivery to your company in Chennai and its industrial belts, including Manali, Ennore and the Kattupalli port area in the north; Ambattur and Guindy industrial estates in the city; Sriperumbudur, Irungattukottai, Oragadam, Thirumudivakkam, Maraimalai Nagar and Mahindra World City to the west and south; Gummidipoondi and Thiruvallur; and Hosur. Duplex and super duplex material from our Mumbai stock is delivered straight to your plant or site in any of these areas.

Duplex grades and specifications

Duplex 2205 (W.Nr 1.4462): plate and sheet ASTM A240 / ASME SA240, bar A479 / A276, pipe A790 / A928, tube A789. Usually dual-certified S31803/S32205.

Duplex 2205 flanges and forgings: ASTM A182 F51 (S31803) / F60 (S32205). Buttweld fittings: ASTM A815 WPS31803.

Super duplex 2507 (W.Nr 1.4410): plate and sheet ASTM A240, bar A479 / A276, pipe A790 / A928, tube A789 / ASME SA789.

Super duplex 2507 flanges and forgings: ASTM A182 F53 (S32750). Buttweld fittings: ASTM A815 WPS32750.

2205 typical chemistry: Cr 22–23%, Ni 4.5–6.5%, Mo 3.0–3.5%, N 0.14–0.20% (S32205), PREN about 35. 2507: Cr 24–26%, Ni 6–8%, Mo 3–5%, N 0.24–0.32%, PREN above 40.

Typical minimums (ASTM A240): 2205 (S32205) tensile 655 MPa, yield 450 MPa, elongation 25%. 2507 (S32750) tensile 795 MPa, yield 550 MPa, elongation 15%.

Both grades have a density of about 7.8 g/cm³ and are magnetic because of their ferrite content. 2205 is not recommended above about 300 °C, and 2507 service is roughly −50 to 250 °C.

Full grade details: Duplex 2205 · Super duplex 2507 · Duplex stockist · Sheet & plate · Pipe & tube · Round bar · Inconel for Chennai · தமிழில் படிக்க

Duplex forms we supply

We supply duplex plate and sheet cut to size, coils, round bars, seamless and welded pipe and tube, flanges, buttweld fittings and forgings. Duplex is about twice as strong as 316L in yield, so thinner walls are often possible. Send thickness, OD, schedule or diameter and quantity, and sizes are confirmed per enquiry. Plan your weights with the metal weight calculator.

How to order duplex from Chennai

1. WhatsApp +91 99872 73700 or email sales@ganeshmetals.com with the grade (2205 or 2507), form, size, quantity and any project specification.

2. We confirm stock and testing, then reply with price, availability and the MTC heat number. Quoted stock is held for 2 days.

3. Confirm the order and transporter. We pack, dispatch and share the documents.

Or use our enquiry form. For weekly nickel price news, read our Metal Bulletin.

Where duplex is used in Chennai

Desalination plants along the Chennai coast: seawater piping, brine heaters, pump casings and structural parts. 2507 is used where 2205 reaches its chloride limit.

Port and marine work at Ennore and Kattupalli: seawater firewater and cooling systems, pumps and valves.

Process plants in the Manali and Gummidipoondi belts: tanks, vessels and piping for chloride-bearing and organic acid streams, where 316L cracks.

Heat-exchanger fabricators in Ambattur: shells, tubes and tube sheets for brackish and cooling-water exchangers.

Pharma and specialty chemical units: process tanks and piping exposed to aggressive chloride cleaning chemicals.

Why Chennai buyers choose Ganesh Metals for duplex

Stockist, supplier and processor in Mumbai since 1992.

The mill's original EN 10204 3.1 test certificate is passed on with every supply, with heat-number traceability.

ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certified.

PMI-verified duplex and super duplex with the original mill markings.

Chemistry, mechanical results and, where specified, ferrite content and impact tests on the MTC are checked against your specification before dispatch.

Pan-India supply, including units in SEZs.

FAQs — Chennai

Do you supply duplex steel to Chennai?

Yes. We supply 2205 and 2507 plate, pipe, bar, flanges and fittings to Chennai from our Mumbai stock. We provide direct door delivery to your company in Chennai.

How long does delivery to Chennai take?

It varies with the transporter and route. We confirm the dispatch plan with you when you order.

When should I choose 2507 over 2205?

Choose 2507 for warmer seawater, higher chlorides or higher strength. 2205 suits less severe chloride service at lower cost. Send your service data and we will help you decide.

Can duplex 2205 replace 316L?

Often yes, in chloride service, and with higher strength. Welding procedures must suit duplex so that the phase balance is kept.

Will duplex come with a 3.1 certificate?

Yes. Every supply comes with the mill's original EN 10204 3.1 test certificate. 2205 is usually dual-certified S31803/S32205. Call or WhatsApp +91 99872 73700 to discuss your use.