We specialize in precision laser cutting and sheet metal fabrication of C276 alloy parts for industries facing the most aggressive chemical environments. C276 (Hastelloy® C-276, UNS N10276) is a nickel-molybdenum-chromium superalloy renowned for its exceptional resistance to localized corrosion, stress corrosion cracking, and both oxidizing and reducing chemical attack. While often referenced alongside stainless steels in search terminology, C276 is technically a high-performance nickel alloy that dramatically outperforms standard 300-series grades in demanding process environments.
Our factory combines high-power fiber laser cutting technology with comprehensive sheet metal fabrication capabilities—including CNC forming, machining, TIG welding, and surface finishing—to deliver complex C276 components ready for installation in chemical processing, pollution control, pulp and paper, pharmaceutical, and offshore applications.
C276 Grade Chemical Composition and Technical Property is as below：
Standard
C % max
Si max
Mn max
P max
S max
tensile strength（MPa）
yield strength（MPa）
Elongation%
C276
0.01
0.08
1
0.04
0.03
≥690
≥283
≥40
Material Characteristics & Fabrication Advantages
Universal Corrosion Resistance: One of the few alloys resistant to wet chlorine gas, hypochlorite solutions, chlorine dioxide, and oxidizing acid chlorides. Performs in both oxidizing and reducing environments where standard stainless steels fail rapidly.
Chloride Stress Corrosion Cracking Immunity: Virtually immune to chloride-induced SCC and pitting, making it essential for seawater, brine, and chemical process applications.
Weld Heat-Affected Zone Integrity: C276 resists the formation of deleterious precipitates in the weld HAZ, maintaining full corrosion resistance in as-welded condition without post-weld heat treatment in most thicknesses.
High-Temperature Stability: Useful mechanical properties up to 538°C (1000°F) with excellent resistance to oxidation and carburization.
Laser-Cut Edge Quality: Fiber laser cutting with nitrogen assist produces clean, oxide-free edges that retain the alloy's corrosion resistance near the cut zone, minimizing secondary cleanup.
Versatile Fabrication: Good formability in the annealed condition allows bending, rolling, and deep drawing for tanks, ducting, and structural housings.
Typical Applications
Chemical Processing: Reactor vessel internals, heat exchanger baffles, mixing propellers, and scrubber components handling sulfuric, hydrochloric, and phosphoric acids
Pollution Control: Flue gas desulfurization (FGD) scrubber plates, stack liners, and absorber tower internals
Pulp & Paper Bleaching: Chlorine dioxide (ClO₂) washer drums, diffuser plates, and bleach plant equipment
Pharmaceutical & Food: Acid-resistant processing line components and CIP/SIP system parts (where permitted by alloy chemistry requirements)
Oil & Gas / Offshore: Subsea manifold components, wellhead seals, riser clamps, and seawater cooling system plates
Waste Treatment: Incinerator scrubber components and hazardous waste processing equipment
FAQ
Q: How does C276 compare to 316L or 904L stainless steel?
A: C276 outperforms both 316L and 904L in aggressive chemical environments containing chlorides, oxidizing acids, and mixed acid solutions. While 316L is suitable for mild chemical and marine exposure, and 904L handles moderate sulfuric acid, C276 is required for hot concentrated acids, wet chlorine, and severe chloride environments. The cost reflects this premium performance.
Q: Can C276 parts be welded during fabrication?
A: Yes. C276 exhibits excellent weldability and can be joined by GTAW (TIG), GMAW (MIG), and SMAW processes using ERNiCrMo-4 filler metal. It requires no preheat and generally needs no post-weld heat treatment to restore corrosion resistance, which is a major advantage over many stainless steels. Interpass temperature should be kept below 150°C.
Q: Is C276 magnetic?
A: C276 is austenitic and essentially non-magnetic in the solution-annealed condition. Minor magnetic response may appear in heavily cold-worked areas, but this is negligible for most applications. For installations near sensitive magnetic instruments, the material is generally considered non-magnetic.
Q: What is the minimum order quantity (MOQ)?
A: We have no strict MOQ. Prototype orders of a single part are welcome. Standard pricing tiers apply at 50 pieces, 100 pieces, and full sheet utilization volumes. Contact us for project-specific quotations.
