Hastelloy C276 Bright Bar / Hot Rolled Bars Diameter 6 - 300mm Polishing C276 Shaft for Oil

More Specification Informations

Regular Diameter of Hastelloy C276 Round Bar in Stock

Hastelloy C276 Bright Bar / Hot Rolled Bars Diameter 6 - 300mm Polishing C276 Shaft for Oil

1. Product Parameters

2. Core Performance Characteristics

• Exceptional Corrosion Resistance: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in aggressive media common in oil operations, including sour crude (containing H₂S), chloride-rich brines, and acidic refining fluids (e.g., sulfuric acid, hydrochloric acid). It is also immune to intergranular corrosion after welding or heat treatment.
• High-Temperature Stability: Maintains mechanical strength and corrosion resistance at temperatures up to 1093°C (2000°F), making it suitable for high-temperature oil refining processes (e.g., catalytic cracking, hydrocracking) and downhole applications in deep, high-temperature wells.
• Superior Mechanical Strength: Tensile strength ≥ 795 MPa; Yield strength (0.2% offset) ≥ 379 MPa; Elongation ≥ 40%. Even after long-term exposure to high temperatures or corrosive environments, it retains minimal strength degradation.
• Excellent Machinability & Weldability: The bright bar’s polished surface reduces tool wear during machining, while the alloy’s low carbon content (≤ 0.01%) ensures weldability without post-weld heat treatment—critical for on-site assembly of oilfield equipment.

3. Industry Standards

4. Similar Grades

5. Application Fields in the Oil Industry

• Upstream (Oilfield Exploration & Production):
  • Downhole shafts and mandrels for electric submersible pumps (ESPs) in high-temperature, high-salinity wells.
  • Valve stems and choke shafts for wellheads (resisting corrosion from sour gas and brines).
  • Drill collars and tool joints for deep, corrosive wells.
• Midstream (Oil & Gas Transportation):
  • Compressor shafts and pump shafts for pipelines transporting sour crude or natural gas.
  • Valve components in pipeline terminals (resisting chloride-induced corrosion from coastal environments).
• Downstream (Oil Refining & Petrochemicals):
  • Shafts for centrifuges and mixers in catalytic cracking and hydrotreating units.
  • Heat exchanger tubesheets and reactor internals (withstanding high temperatures and acidic process fluids).
  • Pump shafts and agitator shafts in sulfur recovery units (resisting corrosion from sulfuric acid byproducts).

6. Packaging Methods

• Inner Packaging:
  • Each bar is wrapped in a thick, moisture-proof polyethylene (PE) film to prevent oxidation, dust, or moisture contamination (critical for polished shafts, as surface scratches or rust can affect performance).
  • For bright bars with mirror finishes, an additional layer of anti-scratch kraft paper is added between the PE film and the bar.
• Outer Packaging:
  • Wooden Crates: Suitable for small-diameter bars (6mm - 50mm) or polished shafts. Crates are made of fumigated pinewood (compliant with ISPM 15 standards for international shipping) with reinforced corners to prevent deformation during transit. Each crate is labeled with product details (grade, diameter, length, quantity, batch number).
  • Steel Bundles: For large-diameter hot-rolled bars (50mm - 300mm), bars are bundled with galvanized steel straps (25mm width, 2mm thickness) at 1m intervals. Each bundle is wrapped in a heavy-duty PE woven cloth to resist impact and weathering.
  • Pallets: Both crates and steel bundles are placed on wooden or plastic pallets (size: 1200mm × 1000mm) to facilitate loading/unloading with forklifts. Pallets are secured with stretch film to prevent shifting during transportation.
• Special Protection for Oilfield Delivery:
  • For offshore or desert oilfield projects, additional corrosion inhibitors are applied to the bar surface before packaging.
  • Packages are marked with "" (Moisture-Proof), "" (Shock-Proof), and "" (Upward) labels to guide handling.
  • A batch certificate (including chemical composition, mechanical properties, and test results) is enclosed in a waterproof envelope inside each package for quality verification.

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