Hastelloy C276 (UNS N10276)
Hastelloy C276 is a nickel alloy for harsh corrosion. Here is how to source it.
Updated . Edited by: Ilyass Ben Hakim.
Where to buy
- Search AmazonLive search · amazon.com
- Search eBayLive search · ebay.com
- Google ShoppingLive search · google.com
Marketplaces carry small rods, sheet offcuts and welding wire. For plate, pipe or fittings, request quotes from nickel alloy service centers.
Professional insight
Plant buyers order C276 by UNS number and ASTM spec. Trade names alone are not enough.
- Demand a mill test report traceable to the heat.
- Match the ASTM spec to the product form.
- Generic C276 can meet spec without the Hastelloy name.
- Use ERNiCrMo-4 filler for welding C276.
Check the label
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Specs to match
| Element | Range |
|---|---|
| Nickel | Balance |
| Molybdenum | 15 to 17 percent |
| Chromium | 14.5 to 16.5 percent |
| Iron | 4 to 7 percent |
| Tungsten | 3 to 4.5 percent |
| Carbon | 0.01 percent max |
Types
| Form | Common spec |
|---|---|
| Plate, sheet, strip | ASTM B575 |
| Rod and bar | ASTM B574 |
| Seamless pipe and tube | ASTM B622 |
| Welded pipe | ASTM B619 |
| Fittings | ASTM B366 |
| Weld wire | AWS A5.14 ERNiCrMo-4 |
Red flags
- No mill test report or a report with no heat number.
- Prices far below other nickel alloy quotes.
- Material that a magnet grabs strongly.
- Hastelloy name used with no proof of the source mill.
Questions for the seller
- Is this Haynes Hastelloy or generic UNS N10276?
- Can you supply an EN 10204 3.1 certificate?
- What is the lead time and minimum cut size?
- Do you offer PMI testing before shipping?
Common questions
- Is Hastelloy a brand?
- Yes. It is a Haynes International trademark. Generic C276 shares the UNS number.
- How does C276 differ from C22?
- C22 has more chromium. It handles oxidizing media better.
- Can I weld C276 to stainless?
- Often yes, with nickel alloy filler. Follow your welding procedure.