Inconel 617 High Temperature Slit Strip Thin Foil for Catalytic Grid Supports

The high temperature slit strip manufactured from premium Inconel 617 thin foil is an ultra-reliable nickel-chromium-cobalt-molybdenum alloy material tailored for extreme thermo-mechanical systems. Featuring a fully homogeneous solid-solution microstructure, our bright annealed Inconel 617 strip exhibits outstanding dimensional stability and corrosion-fatigue endurance under severe cyclic heating and corrosive process gases.

Through advanced multi-roll precision cold rolling and high-accuracy rotary shear slitting, DLX delivers high temperature slit strip coils with micron-level thickness uniformity, smooth bright-annealed surfaces, and clean burr-free edges, making it the premier choice for catalytic gauze baskets, catalyst grid supports, and high-efficiency thermal recuperators.

Catalytic grid supports in chemical synthesis (such as nitric acid production, hydrogen reforming, and ammonia oxidation) operate under relentless thermal stress, high-velocity gas erosion, and severe oxidizing and nitriding atmospheres. Standard stainless steels and conventional nickel alloys suffer from rapid thermal degradation, embrittlement, and structural sagging under these intense conditions.

Our Inconel 617 thin foil high temperature slit strip solves these critical engineering challenges by leveraging high cobalt (10–15%) and molybdenum (8–10%) additions combined with optimal chromium levels (20–24%). This balanced metallurgical composition provides unmatched solid-solution strengthening and superior resistance to surface degradation up to 1100°C (2012°F).

The enriched chromium and aluminum matrix in the Inconel 617 thin foil spontaneously forms a tightly adherent, protective dual-oxide surface layer (Cr2O3 and Al2O3). This stable barrier halts internal oxidation, cyclic spallation, and high-temperature nitridation even during prolonged exposure to aggressive catalytic exhaust and ammonia oxidation streams up to 1100°C.

Cobalt and molybdenum impart extraordinary solid-solution strengthening at elevated temperatures. Unlike precipitation-hardened grades prone to over-aging embrittlement, our high temperature slit strip maintains excellent ductility, high fatigue endurance, and long-term creep-rupture resistance without undergoing structural sagging under extreme thermal loads.

Engineered for automated mesh weaving, laser welding, and honeycomb stamping, each Inconel 617 thin foil high temperature slit strip undergoes stringent optical edge-monitoring during precision rotary slitting. This guarantees razor-sharp width tolerances and zero-burr edges that prevent tooling wear and stress concentrations during catalyst support fabrication.

Through vacuum bright annealing in pure hydrogen atmospheres, our strip achieves a uniform austenitic grain structure and low work-hardening modulus. This enables tight-radius bending, deep drawing, and complex corrugated shaping without micro-cracking.

Complementary trace elements (Ti, Mn, Si, B) are tightly controlled through vacuum refining to eliminate grain boundary impurities.

In nitric acid manufacturing and ammonia oxidation reactors, precious metal (Pt-Rh) catalyst gauzes require robust mechanical support structures. Our Inconel 617 thin foil high temperature slit strip is fabricated into support grids, corrugated partitioning strips, and honeycomb retainers that withstand extreme thermal gradients and corrosive process gases without contaminating catalyst beds.

Used as flexible expansion joints, engineered metallic seals, and thermal baffles in land-based power turbines and aerospace propulsion units where high-temperature creep and gas erosion resistance are paramount.

Ideal for micro-channel and printed circuit heat exchangers (PCHE) in high-temperature gas-cooled reactors (HTGR) and advanced waste-heat recovery systems operating above 850°C.

Fabricated into flame holders, radiant heating elements, specialized furnace fixtures, and expansion bellows requiring superior high-temperature fatigue strength.

Changzhou DLX Alloy Co., Ltd. operates state-of-the-art production lines encompassing Vacuum Induction Melting (VIM), Electroslag Remelting (ESR), precision sendzimir cold rolling, continuous vertical bright annealing, and computerized CNC slitting lines. Every coil of high temperature slit strip is fully traceable from molten heat to finished slitted spool.

With an overall monthly manufacturing capacity of 1,200 tons, DLX combines large-scale industrial output with responsive customized production. We accommodate flexible Minimum Order Quantities (MOQ) tailored to your specific slitting dimensions, supporting prototype testing as well as high-volume continuous supply contracts.

Our specialized precision slitting technology delivers razor-sharp tolerances across thickness, width, and camber. Automated non-contact surface inspection systems verify 100% pinhole-free and defect-free foil surfaces, protecting downstream manufacturing equipment and ensuring zero-defect assembly.

DLX delivers high-integrity alloy solutions worldwide. All precision foils and slitted coils are sealed with moisture-barrier film, protected with edge-cushioning packaging, and crated in fumigated export wooden cases to guarantee pristine condition upon arrival at your manufacturing facility.

A: Inconel 617 incorporates an optimum balance of cobalt (10-15%) and molybdenum (8-10%) within a high-chromium nickel matrix. This solid-solution composition delivers exceptional creep-rupture strength at temperatures above 1000°C and prevents structural embrittlement or sagging during long-term exposure to aggressive oxidizing and nitriding catalytic streams.

A: DLX utilizes ultra-hard tungsten carbide rotary shear tooling combined with computer-guided tension levelling and laser edge-inspection systems. Our specialized slitting protocol guarantees burr heights under 5% of the strip thickness and tight width tolerances down to ±0.05 mm, preventing edge-cracking and automated assembly jams.

A: We produce Inconel 617 thin foil down to a thickness of 0.02 mm (0.0008") up to 0.50 mm (0.020"), with customized slitting widths ranging from 2.0 mm to 350 mm. Custom traverse wound spools, specific inner coil diameters (ID 100mm, 200mm, 300mm), and cut-to-length sheets are available upon request.

A: Our high temperature slit strip is delivered in a fully bright-annealed soft condition with a uniform austenitic grain structure and high elongation (≥35%). This ensures superior ductility for tight-radius stamping, corrugated grid folding, and fine-wire mesh interweaving without intermediate annealing.

A: DLX provides flexible dynamic MOQs based on your targeted thickness and width dimensions. Standard pilot trial batches and commercial container orders are fully supported, with expedited production schedules backed by our 1,200 tons/month factory capacity. Contact our engineering sales team for immediate technical and quotation support.