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Premium Hastelloy C276 Bright Round Bar with Heat Resistance and Corrosion Resistant Properties for Custom Cutting in Oil & Gas
Product Details
| Model Number | C276 | Shape | Round |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Bright |
| Diameter | 5-300mm | Length | Custom |
| Temperature Range | -200°C To 400°C | Nickel Content | 57% |
| Molybdenum Content | 15.0-17.0% | Chromium Content | 14.5-16.5% |
| Tungsten Content | 3.0-4.5% | Iron Content | 4.0-7.0% |
| Carbon Content | ≤0.01% | Tensile Strength | 842-1050 MPa |
| Yield Strength | 455 MPa | ||
| Highlight | Heat Resistance Hastelloy C276 Bright Round Bar,Corrosion Resistant Nickel Alloy Round Bar,Custom Cutting Super Alloy Bar |
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Product Description
Premium Hastelloy C276 Bright Round Bar
High-performance heat resistance bright bar specifically engineered for oil & gas and pharmaceutical equipment applications.
Product Specifications
| Products Name | Hastelloy C276 Bright Bar |
| Diameter | 5 - 350mm |
| Length | Custom cutting any length as requested |
| Surface | Bright, Black |
| Brand | DELTA |
| Service | Cutting, Polishing |
| MOQ | 2 Kgs |
| Other Types | Bar, strip, coil, pipe, sheet, plate, wire, etc. |
| Packing | Wooden box |
| Loading Port | Shanghai Port |
| Price Term | EXW, FOB, CIF, CFR |
| Delivery Time | Within 12 days |
Material Description
In the oil & gas and pharmaceutical industries, equipment reliability in harsh environments—from sour gas wells to corrosive drug synthesis reactors—depends entirely on material performance. The Hastelloy C276 bright round bar emerges as a premium solution, combining exceptional heat resistance, corrosion resilience, and precise machining quality to meet the most stringent industrial demands. As a nickel-chromium-molybdenum-tungsten alloy, it is globally recognized as a universal corrosion-resistant material, while its bright surface finish elevates hygiene and durability for critical applications.
Core Characteristics
The superiority of Hastelloy C276 bright round bar stems from its unique alloy composition and precision processing. Unlike standard alloy bars, its bright polished surface eliminates surface defects, reduces corrosion initiation points, and meets the pharmaceutical industry's strict hygiene standards by preventing residue buildup.
Key Performance Advantages
- Dual-environment corrosion resistance: Excels in both oxidizing and reducing media, withstanding chloride-induced pitting, crevice corrosion, and stress corrosion cracking
- High-temperature stability: Maintains mechanical integrity in operating temperatures ranging from -200°C to 400°C, with short-term resistance up to 1038°C
- Machinability and weldability: The bright bar format allows precise turning and drilling, while the alloy's low carbon content minimizes carbide precipitation during welding—preserving corrosion resistance in as-welded structures
Chemical Composition
Hastelloy C276's properties are defined by its tightly controlled elemental composition, with nickel as the base and strategic additions of molybdenum, chromium, and tungsten. The following table details its standard composition (UNS N10276 specification):
| Element | Minimum Content (%) | Maximum Content (%) | Function |
|---|---|---|---|
| Nickel (Ni) | Balance (~57%) | - | Provides base alloy stability and resistance to reducing environments |
| Molybdenum (Mo) | 15.0 | 17.0 | Enhances resistance to pitting and crevice corrosion |
| Chromium (Cr) | 14.5 | 16.5 | Delivers oxidation resistance and stability in acidic media |
| Tungsten (W) | 3.0 | 4.5 | Boosts overall corrosion resistance and high-temperature strength |
| Iron (Fe) | 4.0 | 7.0 | Improves alloy workability and reduces cost |
| Cobalt (Co) | - | 2.5 | Limits potential embrittlement in high-temperature service |
| Carbon (C) | - | 0.01 | Prevents carbide formation and maintains weldability |
| Silicon (Si) | - | 0.08 | Minimizes oxidation during processing |
| Manganese (Mn) | - | 1.0 | Enhances hot working properties |
| Vanadium (V) | - | 0.35 | Refines grain structure for improved strength |
| Phosphorus (P) | - | 0.04 | Controlled to avoid brittleness |
| Sulfur (S) | - | 0.03 | Restricted to prevent corrosion and machining defects |
Mechanical Properties
The mechanical performance of Hastelloy C276 bright round bar varies with cold working degree, but even in the annealed state (most common for industrial equipment), it delivers exceptional strength and ductility. Below are typical values for annealed and cold-worked conditions:
| Property | Unit | Annealed Condition | 40% Cold-Worked | 75% Cold-Worked |
|---|---|---|---|---|
| Ultimate Tensile Strength | MPa (ksi) | 842-1050 (122-152) | 1531 (222) | 1999 (290) |
| 0.2% Yield Strength | MPa (ksi) | 455 (66) | 1310 (190) | 1724 (250) |
| Elongation (in 25.4cm) | % | 40 | 3.8 | 3.9 |
| Hardness | HRB | ≤100 | - | - |
| Modulus of Elasticity | GPa (mpsi) | 205 (29.8) | 205 (29.8) | 205 (29.8) |
Equivalent Grades
Hastelloy C276 bright round bar is manufactured to international standards, with equivalent designations across major industrial regions. This ensures compatibility with global equipment specifications:
| Region/Standard | Equivalent Grade |
|---|---|
| United States | UNS N10276, ASTM B574, ASTM B575 |
| Germany | W.Nr 2.4819, NiMo16Cr15W |
| China | NS3304, NS334, 00Cr16Ni60Mo16W4 |
| International | ISO 15156-3 (NACE MR0175), AWS 054 |
| Trade Names | Nicrofer 5716, Super Imphy 276, Inconel C-276 |
Key Applications
Oil & Gas Industry
Hastelloy C276 bright round bar is indispensable in harsh oilfield and refining environments:
- Downhole components: Used for valves, drill collars, and wellhead parts in sour gas wells, where it resists sulfide stress cracking
- Refining equipment: Fabricated into heat exchanger tubes, reactor internals, and pump shafts to handle corrosive hydrocarbons and acid catalysts
- Offshore platforms: Withstands seawater corrosion and cyclic temperature fluctuations in subsea pipelines and processing modules
Pharmaceutical Industry
Its hygiene and corrosion resistance make it ideal for drug manufacturing:
- Reactor vessels and agitators: The bright surface prevents cross-contamination and withstands aggressive solvents and sterilization cycles
- Piping and valves: Ensures purity in API production, where even trace metal leaching is prohibited
- Laboratory equipment: Used for high-precision fittings and sample handling tools in analytical processes
Quality Assurance & Compliance
Premium Hastelloy C276 bright round bar adheres to strict quality protocols, including:
- Chemical composition verification via spectrometric analysis
- Mechanical testing (tensile, hardness, impact) to ASTM standards
- Surface finish inspection and non-destructive testing (ultrasonic flaw detection)
- Certification by ISO, SGS, or BV to validate material traceability
In summary, Hastelloy C276 bright round bar combines unmatched corrosion resistance, heat stability, and precision engineering to solve the most challenging material problems in oil & gas and pharmaceutical sectors. Its global standardization and proven performance make it a cost-effective investment in long-term equipment reliability.
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