With a PREN value of ≥69, the highest among all standard marine alloys, Hastelloy C276 delivers unmatched resistance to pitting, crevice corrosion and stress corrosion cracking. Emily PIPE supplies classification society-certified Hastelloy C276 seamless pipes, bars, forgings and clad products manufactured via double vacuum melting (VIM+VAR) with full traceability from ingot to finished component.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B622 (Seamless Pipe/Tube), ASTM B619 (Welded Pipe), ASTM B574 (Bar/Rod)
2. Marine Standards: ABS, DNV, LR, BV, CCS, RINA 3. Offshore Standards: NACE MR0175/ISO 15156-3, API 5LC 4. Pressure Vessel Standards: ASME Section VIII Div.1 5. Testing Standards: ASTM E8, ASTM G48 (Pitting/Crevice), ASTM E243 (Eddy Current) |
| Material Grade | 1. Standard Marine Grade: Hastelloy C276 (UNS N10276), solution annealed
2. Premium Marine Grade: VIM+VAR double vacuum melted, low residual elements 3. Clad Grade: Hastelloy C276 clad on carbon steel for large-diameter piping 4. Equivalent Grades: NS3304 (China), Hastelloy C276 (USA), Nicrofer 5716 (Germany) |
| Chemical Composition (Weight %) | 1. Nickel (Ni): 57.0% minimum (matrix stabilization and corrosion resistance)
2. Chromium (Cr): 14.5-16.5 (oxidizing acid resistance) 3. Molybdenum (Mo): 15.0-17.0 (reducing acid and pitting resistance) 4. Tungsten (W): 3.0-4.5 (enhanced crevice corrosion resistance) 5. Iron (Fe): 4.0-7.0 (improves formability) 6. Carbon (C): ≤0.010, Silicon (Si): ≤0.08, Sulfur (S): ≤0.010 Note: The ultra-low carbon and silicon content prevents grain boundary precipitation during welding |
| Mechanical Properties (Solution Annealed) | 1. Tensile Strength (RT): 690-900 MPa
2. 0.2% Yield Strength (RT): ≥310 MPa 3. Elongation (δ5): ≥40% 4. Impact Toughness (-196℃): ≥120 J 5. Maximum Continuous Service Temperature: 650℃ |
| Dimensional Tolerance | 1. Seamless Pipes/Tubes: Ø6-50mm ±0.15mm; Ø50-150mm ±0.3mm; Wall thickness ±0.08-0.12mm
2. Bars/Rods: Ø6-50mm ±0.3mm; Ø50-300mm ±0.6mm; Straightness ≤0.3mm/m 3. Forgings: Custom dimensions per drawing, tolerance ±0.5mm 4. Length Tolerance: ±2mm (1-12m); custom lengths up to 18m available |
| Why This Material Is Used in Ship Manufacturing | 1. Ultimate Chemical Tanker Solution:
– The only alloy approved for transporting 90%+ of hazardous chemicals including HCl, HF, H₂SO₄, Cl₂ and chlorinated solvents – Corrosion rate <0.001mm/year in boiling 10% HCl vs. >10mm/year for 316L – Eliminates cargo contamination risks and reduces dry dock inspection frequency 2. Unmatched Sour Service Performance: – NACE MR0175 certified for H₂S partial pressures up to 100 psi – Resists sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) – Ideal for FPSO process piping handling high-sulfur crude oil and gas 3. Superior Deep-Sea Exploration Capability: – Withstands hydrostatic pressure at depths up to 6000 meters – Non-magnetic properties make it ideal for ROV navigation and sonar equipment – Excellent erosion resistance to sediment-laden deep-sea water 4. Environmental Compliance Advantage: – No need for protective coatings, eliminating toxic coating leaching – Meets strict MARPOL and IMO environmental regulations – 100% recyclable, supporting circular economy initiatives 5. Superior Field Fabricability: – Excellent weldability with all conventional welding processes – No post-weld heat treatment required, critical for remote offshore installations – Reduces installation time and costs by 40-50% compared to other high-performance alloys |
| Application Scenarios and Corresponding Customers | 1. Chemical and Product Tankers:
– Applications: Cargo tank liners, cargo piping, pump and valve components, heat exchangers, vent systems – Customers: Stolt-Nielsen, Odfjell, Navig8, Maersk Tankers, Sinochem Shipping 2. FPSOs and FLNGs: – Applications: Acid gas removal systems, produced water handling, seawater lift systems, flare stacks, process piping – Customers: ExxonMobil, Shell, BP, Chevron, TotalEnergies, CNOOC 3. Deep-Sea Exploration Vessels: – Applications: ROV/AUV pressure hulls, sampling systems, subsea instrumentation, hydraulic systems – Customers: Woods Hole Oceanographic Institution, China Ocean Mineral Resources R&D Association 4. Naval and Military Vessels: – Applications: Mine countermeasure vessel components, exhaust gas cleaning systems, seawater piping, non-magnetic equipment – Customers: US Navy, Royal Navy, Chinese People’s Liberation Army Navy 5. LNG Carriers: – Applications: Cryogenic piping systems, valve bodies, pump shafts, heat exchanger tubes – Customers: QatarEnergy, Shell LNG, MOL, NYK Line, China LNG Shipping |
| Customer Requirements in This Industry | 1. Performance Requirements:
– Mixed Acid Resistance: Must withstand simultaneous attack of multiple corrosive chemicals – Sour Service Resistance: Must meet NACE MR0175 requirements for H₂S – Cryogenic Toughness: Must maintain ductility at -196℃ for LNG applications – Erosion-Corrosion Resistance: Must withstand high-velocity fluid and sediment impingement – Non-Magnetic Properties: Must meet strict magnetic permeability standards for naval applications 2. Quality and Compliance Requirements: – Classification Society Certification: Must provide ABS, DNV, LR or equivalent certification – NACE Certification: Must provide NACE MR0175 certification for sour service – Full Traceability: Must provide complete traceability from raw material to finished product – Third-Party Inspection: Must allow inspection by classification society surveyors – Material Certification: Must provide EN 10204 3.2 mill test reports 3. Manufacturing Requirements: – Double Vacuum Melting: Must use VIM+VAR process for critical components – Precision Dimensional Tolerances: Must meet tight tolerances for proper fit and assembly – Surface Quality: Must have smooth surfaces to reduce flow resistance and corrosion initiation – Non-Destructive Testing: Must undergo 100% UT, ET and hydrostatic testing – Customization: Must produce custom sizes and shapes per customer drawings |
| Common Related Products in This Industry | 1. Hastelloy C276 Seamless Pipes/Tubes: For chemical cargo piping, process piping and heat exchangers
2. Hastelloy C276 Welded Pipes: Cost-effective for large-diameter cargo and process piping 3. Hastelloy C276 Clad Pipes: Carbon steel base with C276 liner for large-diameter high-pressure lines 4. Hastelloy C276 Bars/Rods: For pump shafts, valve stems, impellers and fasteners 5. Hastelloy C276 Forgings: Custom forgings including flanges, valve bodies, pump casings and manifolds 6. Hastelloy C276 Fasteners: Bolts, nuts, screws, studs and washers for severe corrosion service 7. Hastelloy C276 Welding Materials: ERNiCrMo-4 electrodes and wires for marine welding 8. Hastelloy C276 Sheets and Plates: For cargo tank liners, splash zone cladding and structural components 9. Hastelloy C276 U-Bend Tubes: Custom bent tubes for marine heat exchangers and condensers 10. Custom Fabricated Assemblies: Pre-fabricated piping spools and heat exchanger bundles |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Marine Alloy Expertise: We have supplied Hastelloy C276 products to over 200 shipbuilding and offshore projects worldwide
2. Full Classification Society and NACE Certification: Our production line is certified by ABS, DNV, LR, BV, CCS and NACE 3. Full-Process Quality Control: We implement 100% ultrasonic, eddy current and hydrostatic testing on all products 4. Advanced Cladding Technology: We offer Hastelloy C276 clad pipes and plates for cost-effective large-scale applications 5. Strategic Inventory Management: We maintain 200+ tons of Hastelloy C276 inventory to support urgent ship repair requirements 6. Global Logistics Network: We have experience delivering to remote shipyards and offshore locations worldwide 7. Dedicated Marine Technical Team: Our metallurgical engineers specialize in marine material selection and failure analysis 8. One-Stop Solution: We provide complete solutions from raw material supply to finished machined components |
| Supplementary Industry Information | 1. Comprehensive Test Reports: Each batch comes with a full MTR including chemical analysis, mechanical properties, NDT results and corrosion test reports. Cryogenic impact test reports available upon request
2. Full Material Traceability: Every product has a unique heat number and complete traceability documentation from ingot to finished product 3. Value-Added Processing: We offer precision cutting, CNC bending, welding, end processing and surface finishing services 4. Emergency Response Service: We provide 24/7 emergency support for ship repair and dry dock requirements 5. Market Growth: The global Hastelloy C276 market for shipbuilding is projected to grow at a CAGR of over 8% through 2030, driven by chemical tanker fleet expansion and stricter environmental regulations 6. Sustainability Commitment: All our products are manufactured using sustainable practices and are 100% recyclable |
| Packaging | 1. Plastic Caps: All pipe/bar ends are protected with heavy-duty polyethylene caps with internal sealing rings to prevent contamination
2. Waterproof Film: Each product is individually wrapped in waterproof and anti-corrosion film 3. Bundle Packing: Products of the same size are bundled with steel straps and wooden spacers to prevent contact damage 4. Wooden Case: Bundles are packed in sturdy fumigated wooden cases with steel reinforcement for international shipping 5. Export Standard Packing: All packaging complies with international export standards and ISPM 15 regulations 6. Marking: Each package is clearly marked with product specifications, heat number, batch number, quantity and destination |
Looking for Hastelloy C276 pipe, bar or forging for shipbuilding or offshore applications? Send us your dimensions, application requirements and certification standards. We will provide a customized quotation and technical data sheet within 12 hours.