Nickel Alloy Hot Extruded Seamless Pipe

Hot Extrusion vs Everything Else

There are three ways to make a nickel alloy tube: weld it from rolled plate, cold-draw it from a pierced billet, or hot-extrude it. Welded pipes carry a longitudinal seam — a permanent weak point in corrosive and high-pressure service. Cold-drawn pipes achieve tight tolerances but suffer from low yield rates, high material waste, and limited deformation capability on high-strength alloys. Hot extrusion, which is what Jiangsu Ji Lai Da Nickel-Based Alloy Co., Ltd. uses, pushes a heated billet through a die in a single stroke. The result: a seamless one-piece pipe with consistent grain flow, uniform wall thickness, and smooth bore — no seam, no internal stresses from repeated cold working.

The Numbers That Matter

Yield rate above 95%. Material loss below 5%. That's not a theoretical figure — it's what Ji lai da delivers across production runs of C276, N08031, N06625, HC-22, and Inconel 718. Cold drawing a high-nickel alloy typically loses 15–25% of the billet to trimming, pickling, and rejected draws. Welding wastes plate at the seam overlap and requires rework on defective welds. Extrusion wastes almost nothing: the billet becomes the pipe, and the small remainder is cropped and recycled. For buyers purchasing by the ton, the difference in material efficiency directly translates to lower per-meter cost.

Grades and What They're Good For

The nickel alloy hot extruded seamless pipe is available in: C276 — universal corrosion resistance, strongest in reducing acids and chlorine; N08031 — superior in sulfuric and phosphoric acid vs C276; N06625 — high-temperature strength with good corrosion resistance, widely used in aerospace and defense; HC-22 — similar corrosion performance to C276 at lower cost for many media; Inconel 718 — highest high-temperature mechanical strength, for gas turbines and hot sections. All grades go through the same extrusion line. Same die precision, same surface quality, same ISO 9001 + 4-certified quality system. Factory-direct from China with FOB / CIF / DDP options.

Product Parameter

FAQ

Q1: Why is hot extrusion better than cold drawing for nickel alloys?

A: Nickel alloys work-harden quickly — each cold-draw pass increases hardness and reduces ductility, requiring intermediate annealing. That means more steps, more energy, more waste. Hot extrusion forms the pipe in one pass while the metal is plastic, no intermediate annealing needed. Higher yield, shorter cycle, lower cost per meter.

Q2: How does extrusion compare to welding?

A: A welded pipe has a seam. That seam is the first place corrosion attacks, the first place cracks propagate under stress, and the first place inspectors flag in NDT. Our nickel alloy hot extruded seamless pipe has no seam — it's one continuous piece. For chemical processing, high-pressure service, or any application where a leak is unacceptable, seamless isn't a luxury, it's a requirement.

Q3: What does 95% yield rate mean for my order?

A: It means if you order 10 tons of pipe, you get approximately 9.5 tons of usable product. The remaining 0.5 tons is crop ends and scale, which we recycle. Cold drawing typically yields 75–85%, meaning you pay for 10 tons but only get 7.5–8.5. That 15–25% gap is material you paid for but can't use — and it adds up fast on large orders.

Q4: Can you extrude all the listed grades in the same size range?

A: Yes. C276, N08031, N06625, HC-22, and 718 all extrude well in our OD 6–89 mm / WT 3–9 mm range. Extrusion temperature and speed vary by grade, but the equipment and tooling are the same. We switch between alloys regularly — it's our core process, not a special request.

Q5: How do I get a quotation?

A: Send us the grade, OD, wall thickness, length, quantity, and delivery port. We'll return a proforma invoice with FOB or CIF pricing within one business day. MTC per EN 10204 included on every shipment.