Alloy C276 – properties, applications and technical data
Alloy C276 is a nickel-chromium-molybdenum-based filler material known for its very good corrosion resistance in a wide range of aggressive media. The high molybdenum content provides resistance to localized corrosion, such as pitting and crevice corrosion.
The low carbon content minimizes carbide precipitation during welding and helps maintain resistance to intercrystalline attack in heat-affected zones. The material is therefore often used in welded structures in the chemical industry, flue gas cleaning, pulp and paper manufacturing and waste management.
Properties of Alloy C276
Alloy C276 is developed for welding in highly corrosive environments where standard austenitic stainless steels do not offer sufficient resistance. The weld metal provides good resistance to both oxidizing and reducing media.
The material is often used in process equipment where the welded joint must maintain its corrosion resistance even after heat treatment.
- Type: nickel-based welding filler metal
- Alloy: Ni-Cr-Mo-W
- Structure: nickel-based weld metal
- Designations: Alloy C276, ERNiCrMo-4, Alloy C-276, C-276, UNS N10276, W.Nr. 2.4819
- Typical composition: Ni balance, Cr ~15–16%, Mo ~15–17%, W ~3–4%, Fe ~4–7%
Advantages
- Very good corrosion resistance in aggressive chemical environments
- Resistance to pitting and crevice corrosion
- Low carbon content reduces the risk of intercrystalline attack
- Suitable for welded structures in chemical process equipment
- Proven material in energy, environmental and process industries
Limitations
- Higher material cost than standard stainless filler materials
- Should be used where high corrosion resistance is required
- Not necessary in less aggressive environments
Common product forms for Alloy C276
- Welding Wire
- TIG Wire
- MIG Wire
- Welding Electrodes
Typical Applications for Alloy C276
- Chemical Process Equipment
- Flue Gas Cleaning and Emission Control
- Pulp and Paper Manufacturing
- Waste Management and Environmental Engineering
- Heat Exchangers and Reaction Vessels
- Chimney Systems, Ducts and Scrubbers
Compatible Base Materials
Alloy C276 is primarily used for welding high-alloy nickel-based corrosion-resistant materials. It is also used in dissimilar welding where high chemical resistance is required in the weld metal.
- Alloy C276
- Nickel-Chromium-Molybdenum Alloys
- Nickel-Based Corrosion-Resistant Alloys
- Selected Stainless Steels in Dissimilar Welding
Corrosion Resistance
Alloy C276 offers very good resistance to a wide range of aggressive chemical media. The material is particularly appreciated in environments where both localized corrosion and intergranular attack must be limited.
This makes the welding material a strong choice for process equipment operating in acidic, chloride-containing or otherwise corrosive environments.
Environments where Alloy C276 performs well
- Chemical process environments
- Chloride-containing solutions
- Flue gas purification
- Corrosive industrial media
Environments to avoid
- Applications where simpler alloys are sufficient
- Environments where high corrosion resistance is not required
- Constructions where material cost must be kept to a minimum low
Technical data
| Yield strength (0.2%) |
~400 MPa |
| Tensile strength |
~690 MPa |
| Elongation |
~35 % |
| Density |
~8.9 g/cm³ |
| Melting range |
~1325–1370 °C |
Alloy C276 is a proven filler material for welding in chemically aggressive environments where high corrosion resistance and long service life are important requirements.
Contact us for price, availability and technical advice.
Supplier of Alloy C276 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys and nickel-based materials, including welding materials for demanding industrial applications.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM, AMS and ISO standards.
Cutting, testing and quality assurance is done in-house to ensure correct tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Special alloys from stock
- ASTM / AMS / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
