Its composition includes:
- Nickel (Ni): ≥52% (ensures thermal stability and chemical inertness)57.
- Molybdenum (Mo): 15-17% (enhances chloride resistance and reduces pitting)25.
- Chromium (Cr): 14.5-16.5% (prevents oxidation in acidic media)56.
- Tungsten (W): 3-4.5% (boosts high-temperature strength)57.
- Ultra-low carbon (C): ≤0.02% (minimizes intergranular corrosion)35.
Key Performance Advantages:
- Unmatched Corrosion Resistance: Excels in HCl, H₂SO₄, and chloride-rich environments, resisting pitting, crevice, and stress corrosion cracking15.
- High-Temperature Stability: Maintains mechanical integrity up to 1,370°C, ideal for reactors and heat exchangers45.
- Superior Fabricability: Compatible with cold/hot working, welding (GTAW, TIG), and machining46.
- Bio-inert & Wear-resistant: Suitable for medical devices and high-abrasion industrial parts14.
Production Methods of Hastelloy C-276 Round Bar
Hot Working:
- Hot Rolling/Forging: Conducted at 900-1,200°C to shape ingots into bars46.
- Solution Annealing: Heated to 1,050-1,150°C followed by rapid quenching to optimize microstructure46.
Cold Working:
- Cold drawing or rolling enhances surface finish and dimensional precision47.
Welding:
- ERNiCrMo-4 filler wire ensures crack-free joints with matching corrosion resistance36.
Global Equivalent Grades
- UNS: N102763
- EN: NiMo16Cr15W (2.4819)23
- JIS: NW276
- GB: NS3333
Industrial Applications
Hastelloy C-276 round bars are critical in:
- Chemical Processing: Reactors, piping, and valves for aggressive acids13.
- Marine Engineering: Subsea pipelines and desalination systems resisting seawater corrosion45.
- Pharmaceuticals: Biocompatible equipment for sterile production13.
- Power Generation: Flue gas desulfurization (FGD) scrubbers and nuclear components36.
- Oil & Gas: Downhole tools and refinery heat exchangers15.
- Hastelloy C-276 Round Bar Supplier
- Nickel Alloy C276 Corrosion Resistance
- UNS N10276 High-Temperature Rod
- NiMo16Cr15W Machining Guide
- C276 Alloy Chemical Processing
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