Hastelloy C276 Nickel Based Alloy Extruded Seamless Pipe

Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. produces Hastelloy C276 nickel based alloy extruded seamless pipe across the full size spectrum: outer diameter 6 mm to 89 mm, wall thickness 3 mm to 9 mm, and cut lengths from 3,000 mm to 10,000 mm. Each pipe is hot-extruded from a single VIM/VAR-processed billet — no welding, no longitudinal seam, no heat-affected zone. The hot extrusion process at Ji lai da's plant achieves a finished-product yield rate of ≥ 95%, keeping raw material consumption below 5%. For a nickel-molybdenum-chromium alloy where the raw material cost alone can dominate the invoice, this efficiency translates directly into competitive pricing for our customers.

Hastelloy C276 (UNS N10276) is the industry benchmark for reducing-acid corrosion resistance. Its composition — 57% Ni, 16% Cr, 16% Mo, 4% W, with ultra-low carbon (≤ 0.01%) — delivers virtually immunity to stress corrosion cracking (SCC) in chloride environments and exceptional resistance to wet chlorine, hydrochloric acid, sulfuric acid, phosphoric acid, organic acids, and chlorinated solvents. The extremely low carbon content eliminates carbide precipitation during welding, meaning Hastelloy C276 nickel based alloy extruded seamless pipe can be fabricated and installed without post-weld annealing — a critical advantage for military and chemical defense projects where field welding is routine and furnace access is limited.

Product Parameter

Key Features

Unmatched Reducing-Acid Resistance — The Gold Standard in Nickel Alloys

No other commercially available nickel alloy matches the breadth of Hastelloy C276's resistance to reducing media. While N08031 excels in mixed oxidizing-reducing conditions and Inconel 718 prioritizes mechanical strength over corrosion performance, C276 dominates the reducing-acid space: concentrated hydrochloric acid up to 15% at boiling point, sulfuric acid across virtually the entire concentration range, wet chlorine gas, and chlorine dioxide. This is why C276 has been the material of choice for U.S. Army chemical weapons demilitarization programs and NATO-specified containment piping for over four decades. When the consequence of failure is not just a leak but a lethal release, procurement engineers specify Hastelloy C276 nickel based alloy extruded seamless pipe from Ji lai da.

Proven in Military & Chemical Defense Applications

Hastelloy C276 is one of the few nickel alloys with extensive documented service history in defense and chemical weapons demilitarization infrastructure. It is specified for: containment piping in chemical agent neutralization systems; ventilation and off-gas treatment ducts handling chlorine, hydrogen chloride, and thiodiglycol decomposition products; blast-resistant pressure vessel internals; and decontamination line piping in mobile field units. Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. understands the documentation, traceability, and quality-assurance rigor these applications demand — our Hastelloy C276 nickel based alloy extruded seamless pipe is produced under strict process control with full heat traceability, positive material identification (PMI), and third-party verification upon request.

Hot Extrusion — Our Core Manufacturing Technology

Ji lai da built our hot extrusion line specifically to serve the nickel-based alloy market, and Hastelloy C276 is the anchor product of this line. Hot extrusion offers three decisive advantages over alternative forming methods for C276: (1) A single-pass, seamless hollow — no weld seam, no risk of seam failure under pressure cycling. (2) A material yield rate of ≥ 95% with raw material loss below 5%, compared to 70–80% yields typical of forging-and-drilling or deep-hole boring processes. (3) Smooth as-extruded internal and external surfaces that reduce downstream machining, lowering total cost for military and chemical plant procurement programs. This is not outsourced capability — it is Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd.'s own production technology and core competitive strength.

Weldable Without Post-Weld Annealing — Critical for Field Installation

The ultra-low carbon content (≤ 0.01%) in Hastelloy C276 virtually eliminates carbide precipitation in the heat-affected zone during welding. This means that Hastelloy C276 nickel based alloy extruded seamless pipe can be TIG-welded, MIG-welded, or resistance-welded using matching filler metal (ERNiCrMo-4) and placed directly into corrosive service without post-weld solution annealing. For military field engineers deploying modular chemical treatment units, or for petrochemical plant contractors racing against turnaround schedules, this weldability advantage eliminates an entire process step and its associated cost, equipment, and schedule risk. In contrast, many competing alloys require mandatory post-weld heat treatment to restore corrosion resistance — C276 does not.

Ji lai da — China's Dedicated C276 Pipe Manufacturer

Hastelloy C276 nickel based alloy extruded seamless pipe is not one of many products at Ji lai da — it is the reason our company exists. Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. was founded to serve the nickel-based alloy market, and C276 remains our highest-volume, most technically mature product line. This specialization means: deeper raw material inventory for faster delivery; experienced operators who understand C276's hot-working behavior and defect prevention; and a quality management system calibrated to the exacting standards of defense and chemical industry customers. When you source C276 from Ji lai da, you are buying from a China manufacturer whose core competence is your core requirement.

Product Application

As Ji lai da's core product, Hastelloy C276 nickel based alloy extruded seamless pipe is deployed across the full spectrum of ultra-aggressive service environments:

● Military & Defense: chemical weapons demilitarization containment piping, agent neutralization reactors, off-gas scrubbing systems, blast-resistant vessel internals, mobile decontamination unit piping — NATO and U.S. DoD specified.
● Chemical Weapons Destruction: hydrolysis reactor piping, neutralization tank internals, effluent transfer lines handling Schedule 1/2/3 agent decomposition products.
● Flue Gas Desulfurization (FGD): absorber tower inlet/outlet piping, slurry recirculation lines, mist eliminator wash-down systems in coal-fired power plants.
● Chlor-Alkali & Bleach: wet chlorine gas headers, chlorine cooling systems, sodium hypochlorite piping, bleach plant C/D-stage equipment.
● Pharmaceutical & Fine Chemical: reactor cooling coils, vent condensers, and acid recovery lines handling HCl, H₂SO₄, and chlorinated solvents at elevated temperatures.
● Oil & Gas: sour gas processing, H₂S/CO₂ wet service piping, downhole chemical injection lines, offshore produced-water treatment systems.
● Pulp & Paper: chlorine dioxide generator piping, bleach stage equipment, acid washing and pickling systems.

Frequently Asked Questions (FAQ)

Q1: Why is C276 considered Ji lai da's core product?

A: Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. was established specifically to manufacture nickel-based alloy pipe, and Hastelloy C276 is our highest-volume, longest-running, and most technically mature product. Our hot extrusion line was designed and commissioned around C276's specific hot-working characteristics. We maintain dedicated C276 billet inventory and have produced this alloy in thousands of heats — meaning our operators, inspectors, and quality systems are all optimized for C276. When customers need reliable C276 pipe from a China manufacturer who truly specializes in the alloy, Ji lai da is the answer.

Q2: What makes C276 different from Inconel 718 or N08031 for military applications?

A: Inconel 718 is a precipitation-hardening alloy designed for structural strength at 650–700 °C — it is not optimized for acid resistance and would corrode rapidly in chemical agent environments. N08031 (Alloy 31) is a super-austenitic alloy that excels in mixed oxidizing-reducing acid service but does not match C276's resistance to concentrated reducing acids like HCl and wet chlorine. Hastelloy C276 nickel based alloy extruded seamless pipe offers the broadest reducing-acid corrosion resistance of any commercially available alloy, combined with SCC immunity in chlorides and weldability without post-weld annealing — properties that make it the default specification for chemical weapons demilitarization and defense containment systems worldwide.

Q3: Can you meet military and defense procurement documentation requirements?

A: Yes. Ji lai da supplies Hastelloy C276 nickel based alloy extruded seamless pipe with EN 10204 3.1 Mill Test Certificates, heat traceability, positive material identification (PMI), and full dimensional/visual inspection records. We routinely support third-party inspection by SGS, BV, TÜV, or defense-audited agencies. For contracts requiring specific military specifications (MIL-SPEC), DFARS-compliant material origins, or Nuclear QA programs, please contact us early so we can align our documentation with your project's compliance framework.

Q4: What is the advantage of hot extrusion for C276 pipe?

A: Hot extrusion produces a seamless pipe in a single pass from billet to hollow — no weld seam, no longitudinal seam risk, and no heat-affected zone. For Hastelloy C276, which is often specified precisely because weld seams are unacceptable in the service environment, this is a decisive advantage. Additionally, our hot extrusion process achieves ≥ 95% material yield with < 5% loss, compared to 70–80% yields from forge-and-drill methods. The as-extruded surfaces are smooth and clean, minimizing post-processing. As a dedicated C276 China manufacturer, this is our core process — not a borrowed capability.

Q5: What are your typical delivery capabilities for C276?

A: Because Hastelloy C276 nickel based alloy extruded seamless pipe is our flagship product, Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. maintains larger billet inventory and shorter production ramp-up times than for any other alloy. Standard production lead time is 25–40 days for mill-run orders, with common sizes potentially available from rolling stock. We offer ex-works, FOB Shanghai, CIF, and DDP delivery worldwide. For urgent defense or turnaround projects, contact us directly — we will prioritize scheduling to meet your deadline.