Hastelloy C276 Bright Bar Diameter 5 - 300mm Bright Polished C276 Rod Custom Cutting in Length
Overview of Hastelloy C276 Bright Bar
Hastelloy C276 bright bar, designated as UNS N10276 and compliant with ASTM B574/ASME SB 574 standards, is a high-performance nickel-based alloy rod renowned for its exceptional corrosion resistance and mechanical strength. Our product line covers a wide diameter range of 5mm to 300mm, with a bright polished surface finish achieved through precision centerless grinding and polishing processes. This surface treatment not only enhances the rod’s aesthetic appeal but also minimizes surface defects, reducing the risk of corrosion initiation in harsh environments.
Core Specifications & Mechanical Properties
Chemical Composition
The superior performance of Hastelloy C276 stems from its carefully balanced chemical composition. It contains a minimum of 57% nickel as the base element, supplemented by 14.5–16.5% chromium, 15.0–17.0% molybdenum, 3.0–4.5% tungsten, and 4.0–7.0% iron. Trace elements are strictly controlled: carbon ≤0.01%, manganese ≤1.00%, silicon ≤0.08%, cobalt ≤2.5%, phosphorus ≤0.04%, and sulfur ≤0.03%. This composition enables the alloy to resist both oxidative and reductive corrosion media.
Mechanical & Physical Properties
At room temperature, our Hastelloy C276 bright bars exhibit a tensile strength of 690–950 MPa, a yield strength (0.2% offset) of 280–350 MPa, and an elongation rate of 40–65%. The alloy has a density of 8.89 g/cm³ and a melting point ranging from 1325°C to 1371°C, allowing it to maintain structural integrity in high-temperature environments up to 1000°C. Additionally, it boasts excellent ductility and weldability, facilitating easy fabrication into complex components.
Dimensional Tolerance & Length Customization
We adhere to strict dimensional tolerances, offering H9/H11 tolerance grades as standard, with customizable options like H8, H10, and K series tolerances available upon request. For length, our standard stock ranges from 50mm to 6000mm, but we provide precise custom cutting services to meet specific project requirements—whether short segments for small components or long rods for large-scale equipment. Each cut end is deburred to ensure safety and compatibility during assembly.
Key Performance Advantages
Unmatched Corrosion Resistance
Hastelloy C276 is one of the most corrosion-resistant alloys available. Its high molybdenum and chromium content provides superior resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking. It performs exceptionally well in aggressive media such as wet chlorine, 次氯酸盐 solutions, seawater, formic acid, acetic acid, and high-concentration chloride salts like ferric chloride and copper chloride. This makes it ideal for applications in highly corrosive industrial environments.
High-Temperature Stability
The alloy retains its mechanical strength and corrosion resistance even at elevated temperatures. In power generation boilers, industrial furnaces, and chemical reactors operating at 800–1000°C, it resists oxidation and thermal fatigue, ensuring long-term service reliability. Its thermal conductivity (9.8 W/(m·°C)) and low coefficient of thermal expansion (11.2 µm/(m·°C)) further enhance its stability under thermal cycling conditions.
Precision & Durability
Our bright polished finish undergoes rigorous quality control, with surface roughness maintained below Ra 0.8μm to prevent contamination adhesion and corrosion buildup. Each rod is straightened using advanced equipment to meet strict straightness standards, eliminating warping during installation and use. The cold-drawn and solution-treated production process ensures uniform microstructure and consistent performance across the entire rod length.
Industrial Applications
Petrochemical & Chemical Industry
Widely used in petroleum refineries, chemical reactors, acid storage tanks, and pipelines handling corrosive media like sulfuric acid and chlorinated organics. It is particularly suitable for catalytic systems and MDI (methylene diphenyl diisocyanate) production equipment.
Power Generation & Nuclear Industry
Applied in civil nuclear power plants, power station boilers, heat exchangers, and steam exhaust systems, where it withstands high temperatures and corrosive coolants. Its radiation resistance also makes it a preferred material for nuclear reactor components.
Marine & Environmental Engineering
Ideal for seawater desalination plants, offshore oil platforms, and flue gas desulfurization (FGD) systems. It resists seawater corrosion and sulfur dioxide-induced degradation, used in 洗涤塔,re heaters, and wet gas fans.
Other Fields
In the paper pulp industry, it manufactures cooking and bleaching vessels; in the medical sector, it is used for corrosion-resistant instrument components. It also serves aerospace, automotive, and electronics industries requiring high-strength, corrosion-resistant parts.
Quality Assurance & Logistics
All our Hastelloy C276 bright bars undergo strict quality inspection, including chemical composition analysis (per ASTM standards), mechanical property testing, and non-destructive testing (NDT) for internal defects. We provide ISO, SGS, and BV certification to guarantee product quality. For packaging, we use export-standard sea packaging with moisture-proof layers to prevent corrosion during transportation. Our production capacity reaches 10,000 tons annually, ensuring timely delivery even for large orders (minimum order quantity: 1 ton).
Why Choose Our Hastelloy C276 Bright Bar?
- Comprehensive Specifications: 5–300mm diameter coverage and custom length cutting meet diverse project needs.
- Superior Performance: Industry-leading corrosion resistance and high-temperature stability reduce maintenance costs.
- Precision Manufacturing: Bright polished surface and strict tolerances ensure easy integration into complex systems.
- Reliable Quality: Certified production and rigorous testing guarantee consistent performance.
