Exotic Metals and Alloys Supplier in Chennai
Nobel Weld is an exotic metals and alloys supplier in Chennai. We focus only on corrosion-resistant and high-performance alloys: titanium, nickel alloys, duplex and super duplex, special stainless steels, zirconium, tantalum and copper-nickel.
Material is supplied to ASTM, ASME and EN specifications with EN 10204 3.1 mill test certificates. EN 10204 3.2 and positive material identification (PMI) are available on request.
Exotic metals and alloys we supply and process
| Material | Grades | Forms | Typical service |
|---|---|---|---|
| Titanium | Gr 1, 2, 5 (Ti-6Al-4V), 7, 12 | Plate, sheet, bar, pipe, tube, forgings | Seawater, chlorides, oxidising acids |
| Nickel alloys | Ni 200/201, Monel 400, Inconel 600/625, Incoloy 800/825, Hastelloy C-276/C-22 | Plate, bar, pipe, forgings, fasteners | Reducing acids, high temperature, sour service |
| Hastelloy | C-276 (N10276), C-22 (N06022) | Plate, bar, pipe, fittings, machined parts | Mixed and reducing acids, wet chlorine, chlorides |
| Monel | Monel 400 (N04400) | Bar, plate, pipe, fasteners, machined parts | Seawater, brine, hydrofluoric acid |
| Duplex and super duplex | UNS S31803/S32205, S32750/S32760, S32550 | Plate, bar, pipe, fittings | Chloride stress-corrosion, seawater |
| Ferralium 255 | UNS S32550, ASTM A182 F61 | Round bar, forgings, machined parts | Seawater, acids, pump and valve wear parts |
| Special stainless steels | 304L, 316L, 316Ti, 317L, 321, 904L | Plate, bar, pipe, tube | Acid and high-temperature service |
| SS 310MoLN (urea grade) | 310MoLN, UNS S31050, 1.4466 | Plate, bar, pipe, tube | Urea and carbamate service |
| Zirconium | Zr 702 (R60702), Zr 705 (R60705) | Sheet, plate, pipe, lining | Strong acids: formic, sulphuric, hydrochloric |
| Tantalum | Unalloyed tantalum (R05200, R05400) | Sheet, plate, foil, lining | Hot concentrated acids |
| Copper-nickel | 90/10 (C70600), 70/30 (C71500) | Pipe, tube, plate | Seawater and marine systems |
Need the part rather than the bar? See the components we machine and the matching welding filler wires.
How to choose exotic metals and alloys for your service
The right alloy depends on the medium, temperature, chlorides and stress in your equipment. This is a starting point; send us the process conditions and we will recommend a grade.
| Service | Usual first choice | Also consider |
|---|---|---|
| Seawater, brine and cooling water | Titanium Gr 2 | Super duplex 2507, Cu-Ni 90/10 and 70/30 |
| Wet chlorine, bleach and chlor-alkali | Titanium Gr 2 or Gr 7 | Hastelloy C-22 |
| Hydrochloric and sulphuric acid | Hastelloy C-276 | Zirconium 702, Tantalum linings |
| Acetic and formic acid | Zirconium 702 | Titanium Gr 7, SS 904L |
| Urea and carbamate | SS 310MoLN urea grade | Zirconium 702, Super duplex |
| Hydrofluoric acid and marine fasteners | Monel 400 | Inconel 625 |
| High temperature and oxidation | Inconel 600 and 625 | SS 321 and 316Ti |
| Pump shafts, impellers and wear parts | Ferralium 255 | Duplex 2205, Titanium Gr 5 |
Where we deliver
Exotic metals and alloys for Chennai, Tamil Nadu and India
From Chennai, we serve plants, OEMs and EPC contractors across Tamil Nadu and the rest of India, with EN 10204 3.1 certificates, heat-number traceability and export packing where needed.
- Chennai
- From our shop in Gowrivakkam to plants in Manali, Ennore, Ambattur, Guindy, Sriperumbudur and Oragadam.
- Tamil Nadu
- Coimbatore, Hosur, Tiruchirappalli, Thoothukudi, Cuddalore, Ranipet, Madurai and Mettur.
- India
- Gujarat, Maharashtra, Karnataka, Telangana, Andhra Pradesh and Kerala; export on ex-works, FOB or CIF terms.
Send your material enquiry
Share the drawing, material specification and quantity. You will receive a technical and commercial response within 48 hours.