DIN 2.4819 Nickel Alloy Plate Sheet Hastelloy C-276 High-Temperature Corrosion Resistant

Comprehensive Technical Datasheet: DIN 2.4819 / C276 Nickel Alloy (Hastelloy C-276)

1. Alloy Overview of 2.4819 Alloy Plate

DIN 2.4819 (commonly known as Hastelloy® C-276, UNS N10276, W.Nr. 2.4819) is a nickel-molybdenum-chromium superalloy fortified with tungsten. It belongs to the Hastelloy C-family and is renowned for exceptional corrosion resistance in both oxidizing and reducing environments, spanning temperatures from cryogenic to 550°C356. Its low carbon content (≤0.01–0.08 wt.%) minimizes carbide precipitation during welding, making it ideal for as-welded applications610.

Equivalent Standards:

• ASTM: UNS N10276

• EN: NiMo16Cr15W

• JIS: NW 0276

• GB: NS330468

2 Chemical Composition of 2.4819 

 Mechanical & Physical Properties

• Tensile Strength: ≥690 MPa

• Yield Strength (0.2% offset): ≥283 MPa

• Elongation: ≥40%

• Density: 8.89–8.90 g/cm³

• Melting Point: 1325–1370°C

• Hardness: ≤230 HB378

 Corrosion Resistance of 2.4819 Alloy

• Acid Resistance: Superior performance in sulfuric, hydrochloric, phosphoric, acetic, and formic acids at concentrations ≤65% and temperatures up to boiling point510.

• Chloride Immunity: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in seawater, brine, and chlorinated solvents26.

• Unique Capabilities: One of few alloys suitable for wet chlorine, hydrofluoric acid (HF), and flue gas desulfurization (FGD) systems47.

3. Common Product Forms & Specifications

DIN 2.4819 / C276 is available in multiple industrial forms, compliant with international standards:

3.1 Bar/Rod (ASTM B574)

• Diameter: 3–250 mm (customizable up to 350 mm for forged bars)19.

• Surface Finish: Bright annealed (smooth), black (as-forged).

• Processing: Cold-drawn (precision dimensions), hot-rolled (heavy sections)12.

• Mechanical Properties: As above, with elongation ≥40%18.

3.2 Plate/Sheet (ASTM B575)

• Thickness: 0.025 mm (foil) – 150 mm (heavy plate); standard heavy plates up to 76.2 mm (3 inches)10.

• Width/Length: Customizable via water-jet/laser profiling1.

3.3 Tubular Products

• Seamless Tubes (ASTM B622): For high-pressure applications (e.g., heat exchangers).

• Welded Pipes (ASTM B619/B626): Nominal and structural piping for chemical processing810.

3.4 Forgings & Fittings (ASTM B564)

• Forms: Flanges, valves, pump components.

• Certification: Compliant with ASME B16.5/B16.9 for pressure systems810.

3.5 Welding Consumables

• Filler Metal: ERNiCrMo-4 (AWS A5.14).

• Process Compatibility: TIG (GTAW), MIG (GMAW), SMAW. No post-weld heat treatment required610.

4. Target Applications

5. Supply & Customization Capabilities

• Certifications: NACE MR0175 (sour gas service), EN 10204 3.1, ISO610.

• Packaging: Standard export crates (e.g., 120×90×12 cm for plates), corrosion-inhibitive wrapping19.

• Lead Time: 10 days for small orders (≤500 kg), 40 days for bulk (≥5,000 kg)1.

• Customization: LOGO/pattern engraving, size tailoring (min. order: 500 kg for plates, 1,000 kg for branding)19.

6. Why Choose DIN 2.4819 / C276?

• Versatility: Performs in mixed acid environments (e.g., HNO₃ + HCl) where stainless steels (e.g., 316L) fail710.

• Cost Efficiency: 10× longer service life in FGD systems compared to alternatives, reducing downtime costs6.

• Global Stock: Major suppliers in Wuxi, Jiangsu; ISO-certified mills ensure consistent quality