N10276 Extruded Seamless Pipe

The extrusion process compresses rather than stretches the metal, producing dense uniform grain structure throughout the wall with no filler metal, no shielding gas, and no post-weld heat treatment required. Material yield exceeds 95%, keeping per-kilogram cost competitive against welded-and-tested alternatives. Standard dimensions cover OD 6–89 mm with wall thickness 3–9 mm and lengths 3000–10000 mm, with custom sizes available on request. N10276 extruded seamless pipe ships with MTC per EN 10204 3.1, available factory-direct from Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. under FOB, CIF, or DDP terms. This is the material specified for wet chlorine headers, sour produced-water injection, sulfuric acid exchangers, and pharma reactors — applications where seamlessness is a prerequisite, not an option. Send your RFQ for qualified supply.

Seam Weakness

A welded pipe starts as flat strip. The seam is forged shut under heat and pressure, but the heat-affected zone on either side carries altered microstructure — carbide precipitation, sensitization, reduced molybdenum at grain boundaries. In a chloride-rich or sulfuric acid line, that zone corrodes first. N10276 extruded seamless pipe has no heat-affected zone because there was no weld. The 16% molybdenum and 15.5% chromium remain at full spec from bore to outer surface, and the pipe withstands the full spectrum of reducing-acid environments that would attack a welded counterpart within weeks.

Extrusion Advantage

The process is straightforward: a heated C-276 billet is pushed through a die at temperatures above 1100 °C. The metal flows under compression — not tension — which means the grain structure is dense and uniform throughout the wall. No filler metal, no shielding gas, no post-weld heat treatment. Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. achieves ≥95% yield and <5% material loss, translating to lower per-kilogram cost than most competitors' welded-and-tested routes. The resulting N10276 extruded seamless pipe ships with MTC per EN 10204 3.1 and is available factory-direct under FOB, CIF, or DDP terms from China.

Critical Installations

Wet chlorine gas headers in chlor-alkali plants — one of the few services where only N10276 survives. Produced-water injection lines in sour oil fields running H₂S at 80 °C. Sulfuric acid heat exchanger bundles where any through-wall pit means a shutdown. Pharmaceutical batch reactors where product purity rules out weld contamination risk. For each of these, the absence of a seam is not a feature — it is a prerequisite. Send your RFQ to Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. for factory-direct pricing and EN 10204 3.1 certified supply.

FAQ

Q: What makes seamless pipe better than welded for C-276?

No weld seam means no heat-affected zone, no risk of sensitization at the seam, and full alloy chemistry preserved throughout the wall thickness — critical for reducing-acid service where any microstructural discontinuity becomes an attack point.

Q: Is this pipe suitable for sour gas service?

Yes. N10276 (C-276) is compliant with NACE MR0175 / ISO 15156 for H₂S-containing environments in oil and gas production.

Q: What size range is available?

Standard OD 6–89 mm, wall thickness 3–9 mm, lengths 3000–10000 mm. Custom sizes available on request.

Q: Can you supply special surface finishes?

Standard is as-extruded. Pickled, passivated, or bright-annealed finishes can be arranged for clean-service or aesthetic applications.

Q: How do I request a quotation?

Send an RFQ with required OD, wall thickness, length, and quantity. Factory-direct pricing returned within 24 hours.