Hastelloy C-276 Plate Suppliers
69 vetted U.S. suppliers · 23 states
Buyers specifying Hastelloy C-276 plate are sourcing for chemical-process, flue-gas scrubber, or high-corrosion-environment parts where lesser nickel alloys won't survive. Below is our live count of vetted U.S. suppliers carrying it, with state distribution and a one-click RFQ flow.
Geographic distribution
Where these suppliers are
Top 8 states by vetted-supplier density. 23 more across 15 additional states — listed below the chart.
Also covered
Georgia (3) · Connecticut (3) · Indiana (3) · Minnesota (2) · Wisconsin (2) · New Jersey (1) · Louisiana (1) · Tennessee (1) · Missouri (1) · Michigan (1) · South Carolina (1) · Iowa (1) · Massachusetts (1) · New Hampshire (1) · Washington (1)
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What Hastelloy C-276 plate is
Hastelloy C-276 is a nickel-molybdenum-chromium-tungsten alloy with one of the broadest corrosion-resistance profiles of any commercial alloy — it handles oxidizing and reducing acids, chloride-bearing media, and chlorine across a wide temperature range. Plate is supplied hot-rolled and solution-annealed, with thickness typically running from 0.125" up through 4". Common downstream uses: pressure vessels, scrubber linings, heat exchanger tubesheets, and process piping flanges.
What to look for in a supplier
Confirm the supplier carries ASTM B575 (plate) or ASME SB-575 (pressure-vessel grade) certification — the two specs are functionally equivalent but pressure-vessel work requires the ASME stamp. Ask whether they stock common gauges or only stock plate to cut-to-size, and what their minimum charge is on a partial cut. Many distributors carry C-276 only in select gauges and have to mill-source the rest, which extends lead time. PMI testing on receipt is standard for C-276 because of how often it gets mixed up with Inconel 625 in mixed-alloy yards.
FAQ
Common questions
What's the difference between Hastelloy C-276 and C-22?
C-22 is the next generation — slightly better in oxidizing environments and more tolerant of localized corrosion (pitting and crevice), but more expensive. C-276 remains the go-to for reducing acids and most general chemical-process work. Don't substitute without an engineering review of your specific corrodent.
Is Hastelloy C-276 the same as Inconel 625?
No. They look similar (both nickel-chromium-molybdenum alloys), but C-276 has tungsten and slightly different chromium and molybdenum ratios that give it better resistance to reducing acids. Inconel 625 is better for high-temperature strength; C-276 is better for corrosion. PMI test to confirm if you're not sure which one you've been shipped.
What thicknesses are standard for Hastelloy C-276 plate?
Stocking distributors typically carry 0.25", 0.375", 0.5", 0.75", and 1" plate. Thicker (1.5", 2", 3", 4") is usually mill-direct with a longer lead time. Sheet (under 0.1875") is a separate product category.
How is Hastelloy C-276 plate certified?
ASTM B575 covers commercial plate; ASME SB-575 covers pressure-vessel-quality plate (same chemistry, additional inspection and stamping). Mill certs traceable to heat number are standard. NACE MR0175 / ISO 15156 compliance is common for oil-and-gas service.
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