Custom Heat Exchanger Tube Sheets in Duplex Stainless Steel Titanium Nickel Alloys for OEM Heat Exchanger Projects

Heat exchanger procurement teams increasingly prioritize tube sheet materials that can withstand corrosive media and multi-pass drilling configurations. For buyers sourcing rectangular tube sheets in duplex stainless steel, titanium, or nickel alloys…

At a Glance

Procurement teams replacing or upgrading heat exchanger tube sheets often face two constraints: material compatibility with process fluids and the need for multi-hole drilling patterns that match existing bundle layouts. Rectangular tube sheets, in particular, are specified for exchangers where a non-circular flange or housing interface is required.

The listing for Custom Heat Exchanger Tube Sheets in Duplex Stainless Steel Titanium Nickel Alloys from Xiamen Openex Mechanical Technology Limited addresses both constraints at a practical level. Basic Info lists a rectangular structure, with manufacturing via cutting and CNC drilling, and a custom CNC drilling service. The supplier also indicates multi drilling and forged sheet are available.

Pricing is listed at US$1,700.00–2,300.00 per unit, with OEM model designation and an HS code of 7308900000. This puts the product in scope for importers evaluating custom tube sheet sourcing rather than off-the-shelf catalog parts. For importers, the price range indicates a custom-fabricated component rather than a commodity part. At the default unit price of US$1,700, the tube sheet likely reflects engineering, material, and CNC drilling costs; however, final price depends on material grade, hole count, and surface treatment requirements. The listing marks transport package and specification as customized, which also affects landed cost.

When comparing custom tube sheet suppliers, procurement managers typically evaluate material traceability, hole position accuracy, surface finish, and packaging for export. This listing does not publish tolerance values or surface finish data, so those parameters should be confirmed during quotation.

Product Description

The product is positioned as Custom Heat Exchanger Tube Sheets in Duplex Stainless Steel Titanium Nickel Alloys. The material field in Basic Info reads 'Stainless Steel or Customized,' but the product name explicitly signals duplex stainless steel, titanium, and nickel alloys as material families. Buyers should confirm exact grades—for example, 2205/2507 duplex, Grade 2/Grade 5 titanium, or specific nickel alloys—directly with the supplier, because no grade-level certificates are published in the listing.

Key specifications are summarized in the table below; the supplier has listed most dimensional and connection parameters as customized, meaning the tube sheet is engineered to buyer drawings rather than stocked as a finished SKU.

Custom CNC drilling service is listed in the Service attribute, with Multi Drilling and Forged Sheet both marked Available. This is important for procurement managers who need to match existing tube pitches, ligament widths, or counterbore patterns. Transport packaging and specification are also listed as customized, so importers should clarify packaging standards and documentation requirements during quotation.

The HS code 7308900000 falls under structures and parts of structures of iron or steel, which is consistent with fabricated steel tube sheets. However, for titanium or nickel alloy versions, importers should verify the correct tariff classification because duty rates may differ by material and destination.

Applications

Rectangular tube sheets are used in shell-and-tube exchangers, condensers, and process coolers where the tube bundle is housed in a rectangular or modular casing. The material options in the listing—duplex stainless steel, titanium, and nickel alloys—support service conditions involving chlorides, seawater, acids, or high-temperature process streams, but final alloy selection must be made against actual process data and applicable design codes.

For buyers, applicable scenarios include replacement tube sheets for existing assets, new OEM heat exchanger builds, and maintenance projects requiring custom hole patterns. Because the listing allows customized connections and sealing surfaces, it may fit both standard and non-standard flange interfaces; however, no specific pressure ratings or design codes are stated, so those must be confirmed with the supplier.

The custom CNC drilling capability is particularly relevant when a bundle layout requires multi-pass arrangements or non-circular pitch patterns. Importers should provide a detailed tube sheet drawing or CAD file to receive an accurate quotation for drilling layout, hole count, and material grade.

Compared with circular tube sheets, rectangular designs are often used in compact heat exchangers or specialized process equipment where space constraints or modular construction dictate a rectangular bundle envelope. The listing's rectangular structure attribute aligns with this niche, but buyers should confirm whether the tube sheet is supplied as a finished rectangular plate or as a rough forging.

Company Profile

Xiamen Openex Mechanical Technology Limited lists a product range covering metal fabrication, CNC machining, sheet and tube processing, aluminum and steel casting, and industrial components. The seller’s product scope for this item includes cutting, CNC drilling, and forged sheet capabilities, which are common prerequisites for tube sheet manufacturing.

Product origin is listed as China, and the seller operates under an OEM trademark for this SKU. No additional company certifications or factory audit results are published in this listing, so buyers seeking qualified supplier documentation should request those details in the quotation stage. The seller’s broader listed categories include optical inspection machine and machinery parts, which may be relevant for buyers needing auxiliary components alongside tube sheets.

CTA

To move from evaluation to quote, procurement teams can supply a drawing or tube layout and request pricing for the desired material grade. Because the listing includes OEM and custom CNC drilling, ask for OEM specs, available tolerances, and minimum order quantity. Price range is US$1,700.00–2,300.00; confirm final unit price, packaging, and delivery terms with Xiamen Openex Mechanical Technology Limited. If you need a specific alloy grade or heat exchanger design code compliance, include that in the RFQ.

Disclaimer

All specifications and availability statements in this article are based on the supplier-provided listing data. Buyers should independently verify material certificates, heat numbers, dimensional tolerances, drilling accuracy, and applicable design codes before order confirmation. The price range does not include freight, duties, taxes, or additional testing unless explicitly quoted.

Related product: Custom Heat Exchanger Tube Sheets in Duplex Stainless Steel Titanium Nickel Alloys