As the most versatile corrosion-resistant alloy bar for chemical processing, Hastelloy C276 requires no post-weld heat treatment to maintain full corrosion resistance, making it ideal for fabricating complex equipment and field repairs. With over 20 years of production experience, Emily PIPE supplies precision-manufactured Hastelloy C276 bars in all standard and custom sizes that meet the strictest international chemical industry standards.
| Item | Details |
|---|---|
| Executive Standards | 1. International Material Standards: ASTM B574 (Bar and Rod), ASTM B564 (Forgings), ASME SB574, ASME SB564, DIN 17752, EN 2.4819
2. Chemical Piping Standards: ASME B31.3 (Process Piping), ASME B31.4 3. Pressure Vessel Standards: ASME Section VIII Div. 1, PED 2014/68/EU 4. Testing Standards: ASTM E8, ASTM E23, ASTM E10, ASTM G48, ASTM E1444 (Magnetic Particle), ASTM A388 (Ultrasonic) 5. Quality Management Standards: ISO 9001, ISO 14001, OHSAS 18001 |
| Material Grade | 1. Main Grade: Hastelloy C276 (Nickel-Molybdenum-Chromium-Tungsten Superalloy, Severe Corrosion Chemical Grade)
2. International Designations: UNS N10276, W.Nr. 2.4819, Alloy C276, NiMo16Cr15W 3. Equivalent Grades: NS3304 (China), Hastelloy C276 (USA), Nicrofer 5716 (Germany) 4. Special Grades: Forging grade for heavy components; ultra-low sulfur grade for maximum weldability; precision ground grade for tight tolerance applications |
| Chemical Composition (Weight %) – Chemical Grade | 1. Nickel (Ni): 57.0% minimum (base element for overall corrosion resistance)
2. Molybdenum (Mo): 15.0-17.0 (primary element for reducing acid and pitting resistance) 3. Chromium (Cr): 14.5-16.5 (for oxidizing acid resistance) 4. Tungsten (W): 3.0-4.5 (enhances pitting and crevice corrosion resistance) 5. Iron (Fe): 4.0-7.0 (improves formability and cost-effectiveness) 6. Cobalt (Co): ≤2.5 7. Carbon (C): ≤0.010 (ultra-low content prevents intergranular corrosion) 8. Silicon (Si): ≤0.08 9. Manganese (Mn): ≤1.00 10. Phosphorus (P): ≤0.025 11. Sulfur (S): ≤0.010 |
| Mechanical Properties (Annealed State) | 1. Tensile Strength (Room Temperature): 690-900 MPa
2. 0.2% Yield Strength (Room Temperature): ≥310 MPa 3. Elongation (δ5): ≥40% (excellent formability for forging and machining) 4. Reduction of Area: ≥50% 5. Hardness (HB): 180-230 6. Tensile Strength (200℃): ≥580 MPa 7. Tensile Strength (400℃): ≥480 MPa 8. Modulus of Elasticity: 205 GPa 9. Thermal Expansion Coefficient: 11.2×10⁻⁶/℃ (20-100℃) 10. Maximum Continuous Service Temperature: 650℃ |
| Dimensional Tolerance (Chemical Precision Grade) | 1. Hot Rolled Bars:
– Diameter 6mm-50mm: ±0.3mm – Diameter 50mm-150mm: ±0.5mm – Diameter 150mm-300mm: ±0.8mm 2. Cold Drawn Bars: – Diameter 6mm-30mm: ±0.03mm – Diameter 30mm-80mm: ±0.05mm – Diameter 80mm-150mm: ±0.10mm 3. Precision Ground Bars: – Diameter 6mm-100mm: ±0.01mm 4. Rectangular/Square Bars: – Width/Thickness: ±0.05mm for ≤50mm; ±0.10mm for >50mm 5. Length Tolerance: ±2mm for 1m-6m; custom lengths up to 12m available 6. Straightness Tolerance: ≤0.5mm/m for precision grade; ≤0.3mm/m for ultra-precision grade |
| Why This Material Is Used in Chemical Industry (Detailed) | 1. Unmatched Universal Corrosion Resistance:
– Resists corrosion from virtually all aggressive chemicals: sulfuric acid (up to 80% boiling), hydrochloric acid (up to 20% at 100℃), hydrofluoric acid, phosphoric acid, caustic soda and chlorine gas – The only commercial alloy that withstands the combined attack of oxidizing and reducing acids, eliminating the need for multiple material specifications – Provides exceptional resistance to chloride-induced pitting, crevice corrosion and SCC—the three leading causes of chemical equipment failure 2. No Post-Weld Heat Treatment Required: – Ultra-low carbon content eliminates carbide precipitation in weld heat-affected zones, retaining 100% corrosion resistance after welding – Reduces fabrication costs by 30-40% and shortens project timelines, critical for chemical plant turnarounds and emergency repairs – Eliminates distortion and residual stress associated with post-weld heat treatment of large components 3. Superior Fabricability and Machinability: – Excellent hot forgeability allows production of complex shapes such as pump impellers, valve bodies and flanges without cracking – Good machinability compared to other high-nickel alloys, reducing tool wear and machining time by 20-30% – Compatible with all conventional welding processes used in chemical plant construction 4. Wide Temperature Range Performance: – Maintains excellent corrosion resistance and mechanical properties from cryogenic temperatures (-253℃) up to 650℃ – Suitable for both low-temperature chemical processes and high-temperature reaction vessels – Excellent thermal stability with no harmful phase precipitation even after 100,000+ hours of service 5. Proven Long-Term Reliability: – Over 50 years of proven performance in the most severe chemical applications with an excellent safety record – Service life of 15-20+ years, 3-5 times longer than 316L stainless steel in aggressive environments – Extensively tested and qualified by all major global chemical and pharmaceutical companies |
| Application Scenarios and Corresponding Customers (Detailed) | 1. Chlor-Alkali Industry:
– Applications: Pump shafts, valve stems, electrolyzer components, agitator shafts, fasteners, flanges and structural parts – Customers: Dow Chemical, Olin Corporation, Westlake Chemical, Shin-Etsu Chemical, Solvay, BASF, Sinopec 2. Sulfuric Acid Industry: – Applications: Acid pump components, valve bodies, heat exchanger tube sheets, agitators, fasteners and piping supports – Customers: DuPont, BASF, Bayer, ExxonMobil Chemical, Shell Chemical, PetroChina 3. Pharmaceutical and Fine Chemical Industry: – Applications: Reactor agitators, valve components, pump shafts, fasteners, mixing blades and process equipment parts – Customers: Pfizer, Novartis, Merck, Roche, Johnson & Johnson, AstraZeneca, Bayer Healthcare 4. Petrochemical Industry: – Applications: Sour gas processing components, hydrocracking unit parts, pump and valve components, heat exchanger parts and fasteners – Customers: ExxonMobil, Shell, BP, Chevron, TotalEnergies, Saudi Aramco, Sinopec 5. Fertilizer and Agrochemical Industry: – Applications: Phosphoric acid plant components, pump shafts, valve bodies, agitators, fasteners and structural parts – Customers: Yara International, Nutrien, Mosaic, CF Industries, OCP Group, Sinochem 6. Environmental Protection Industry: – Applications: Flue gas desulfurization (FGD) components, scrubber internals, wastewater treatment equipment parts and fasteners – Customers: Siemens Energy, GE Power, Mitsubishi Heavy Industries, DuPont Water Solutions, Ecolab 7. Pulp and Paper Industry: – Applications: Bleaching system components, pump shafts, valve bodies, agitators, fasteners and digester parts – Customers: International Paper, Kimberly-Clark, Procter & Gamble, Stora Enso, UPM-Kymmene |
| Customer Requirements in This Industry (Detailed) | 1. Performance Requirements:
– Universal Corrosion Resistance: Must resist corrosion from all process chemicals for the entire equipment service life – Pitting/Crevice Corrosion Resistance: Must be immune to localized corrosion in chloride-containing environments – Stress Corrosion Cracking Resistance: Must withstand combined tensile stress and corrosive media without failure – Mechanical Strength: Must maintain sufficient strength across the full operating temperature and pressure range – Weldability: Must retain full corrosion resistance after welding without post-weld heat treatment 2. Quality and Compliance Requirements: – Material Standard Compliance: Must meet all requirements of ASTM B574, ASME SB574 and applicable project specifications – ASME B31.3 Compliance: Must comply with process piping code for chemical plant construction – Full Material Traceability: Must provide 100% traceability from raw material ore to finished product – Material Certification: Must provide comprehensive MTRs including chemical analysis, mechanical properties and NDT results – Third-Party Inspection: Must allow inspection by TÜV, SGS, BV or other authorized organizations 3. Manufacturing Requirements: – Precision Dimensional Tolerances: Must meet tight tolerances to ensure proper fit and assembly of components – Surface Quality: Must have a smooth, defect-free surface to prevent corrosion initiation – Internal Quality: Must be free from inclusions, porosity and segregation, verified by 100% ultrasonic testing – Consistent Quality: Must have uniform chemical composition and mechanical properties across all batches – Machinability: Must be easily machinable using conventional CNC equipment 4. Supply Chain Requirements: – Reliable Delivery: Must meet tight project schedules and plant turnaround deadlines – Emergency Response: Must provide expedited production and shipping for unplanned shutdowns – Small Batch Capability: Must produce small quantities for prototype development and maintenance parts – Global Supply Capability: Must deliver to chemical plants worldwide with consistent quality – Inventory Management: Must offer stock holding solutions to reduce customer inventory costs 5. Cost Requirements: – Competitive Pricing: Must offer fair pricing while maintaining the highest quality standards – Low Total Cost of Ownership: Must provide long service life and reduced maintenance costs – Value-Added Services: Must offer cutting, machining and heat treatment to reduce customer fabrication costs |
| Common Related Products in This Industry | 1. Hastelloy C276 Round Bars: Diameters 6mm-300mm in annealed and solution treated conditions
2. Hastelloy C276 Square/Rectangular Bars: Custom sizes for structural applications and machine components 3. Hastelloy C276 Hexagonal Bars: Used for manufacturing nuts, bolts, screws and other threaded fasteners 4. Hastelloy C276 Forgings: Custom forgings including pump bodies, valve casings, flanges and impellers 5. Hastelloy C276 Fasteners: Bolts, nuts, screws, studs and washers for severe corrosion service 6. Hastelloy C276 Welding Materials: Electrodes, wires and filler metals for chemical industry welding 7. Hastelloy C276 Machined Components: Precision-machined shafts, pins, valves and pump parts 8. Hastelloy C276 Sheets and Plates: Used for manufacturing tanks, vessels and heat exchangers 9. Hastelloy C276 Pipes and Tubes: Used for chemical process piping and heat exchangers 10. Custom Fabricated Assemblies: Pre-fabricated pump and valve components |
| Why Choose Us (Emily PIPE) | 1. 20+ Years of Chemical Alloy Expertise: We have been supplying high-performance Hastelloy C276 bar products to the global chemical industry for over 20 years, with deep understanding of severe corrosion service requirements
2. Dedicated Chemical Grade Production Line: We operate a dedicated clean production line for chemical-grade Hastelloy C276 bars, ensuring strict control over chemical composition and internal quality 3. Full-Process Quality Control: We implement comprehensive quality control including 100% ultrasonic testing and magnetic particle testing for all chemical-grade bars 4. Complete International Certifications: Our products meet all major international standards and hold ASTM, ASME, PED and ISO 9001 certifications 5. Advanced Customization Capability: We can produce custom sizes, lengths, tempers and surface finishes according to your drawings and specifications 6. Global Chemical Supply Chain Experience: We have extensive experience supplying to major chemical companies worldwide, with reliable logistics ensuring on-time delivery 7. Professional Technical Support: Our team of metallurgical engineers and corrosion specialists provides expert guidance on material selection and design optimization 8. One-Stop Solution: We provide complete solutions from raw material supply to precision machining, reducing your supply chain complexity |
| Supplementary Industry Information | 1. Comprehensive Test Reports: Each batch comes with a full MTR including chemical analysis, mechanical properties, heat treatment records and NDT results. Corrosion test reports are available upon request
2. Full Material Traceability: Every bar has a unique heat number and complete traceability documentation from raw material to finished product 3. Value-Added Processing: We offer precision cutting, CNC turning, milling, grinding and heat treatment services, providing ready-to-machine components 4. Prototype Development Support: We support small batch prototype orders with fast turnaround times for new chemical process development 5. Emergency Response Service: We provide 24/7 emergency service for unplanned plant shutdowns, with expedited production and shipping 6. Market Growth: The global Hastelloy C276 bar market for chemical industry is projected to grow at a CAGR of over 6% through 2030, driven by increasing demand for corrosion-resistant materials 7. Sustainability Commitment: All our products are manufactured using sustainable practices and are 100% recyclable |
| Packaging | 1. Plastic Caps: All bar ends are protected with heavy-duty polyethylene caps to prevent damage and contamination
2. Waterproof Film: Each bar is individually wrapped in waterproof and anti-corrosion film to protect against moisture and rust 3. Bundle Packing: Bars of the same size are bundled together 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, quantity, gross weight and destination |
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