The storefront listing gives the construction in its title: a clad aluminium sheet strip of 4343, 3003 and 7072 whose title states a 4–30% clad range, for evaporator fin material. In a clad brazing composite, the 3003 core provides the strength and formability, and the 4xxx/7xxx clad layers provide the lower-melting surface that makes the brazed joint. The same construction is the core product of the fin stock page — brazing sheet and clad fin stock are one material family sold into heat-exchange production.
Brazing sheet — documented data
| Product | Clad aluminium sheet strip for evaporator fin material |
|---|---|
| Construction | 4343 / 3003 / 7072 clad composite |
| Clad ratio | 4–30% range (as published in the listing title) |
| Published structures (MIC listing) | 10% 4343 + 10% 7072 on 3003 core; two-side 4343 at 7–10% on 3003 core; clad layers of 5% manufacturable, up to 20% |
| Dimensions (MIC listing) | Thickness 0.2–4 mm; width 5–1600 mm; length max 10000 mm (attributes); dimension table: strip 0.051–3.0 mm, sheet 0.4–6.35 mm |
| Tempers (MIC listing attributes) | O, H14 |
| Related listing | Aluminium solder strip (storefront) |
| Storefront positioning | Brazing aluminium sheet/strip is a headline product in the store profile |
| Minimum order | Not published for this listing — confirmed per enquiry |
The store profile itself leads with brazing: its published headline describes the company as a supplier of brazing aluminium sheet and strip, and the coil-strip site lists brazing among its application families. For clad material, the construction details (clad percentage per side, core temper, gauge) are exactly what an enquiry must fix; the published listing fixes the alloy construction, the 4–30% clad range and the dimensions tabled above, and the minimum order is confirmed per enquiry.
A brazing sheet enquiry should state the construction you run (or the fin/tube design it feeds), the gauge and width, and the temper. If you are qualifying a new source, say so — clad material is normally qualified by brazing trial, and the quotation stage is where sample quantities get agreed.
Brazing sheet buying notes
Clad brazing material is qualified, not just purchased, and the published evidence supports treating it that way here: the supplier's store profile leads with brazing aluminium sheet and strip as its headline, the coil-strip site lists brazing among its application families, and the fin listing publishes the construction (4343/3003/7072, 4–30% clad range) together with strip and plate material property data — tensile strength, yield strength and elongation by construction. What the listing does not state is finished heat-exchange performance for an assembled core; that follows from your fin and tube design and is settled by the qualification trial. A sound first order is therefore a qualification quantity against your furnace cycle and fin design, with the construction fixed in writing: alloy pairing, clad percentage, core temper and gauge. Follow-on orders then repeat a fixed construction rather than renegotiating one. The aluminium solder strip listing is the family's other member — a strip-form joining material — and belongs in the same conversation if your assembly line uses both clad sheet and solder strip. The brazing listing publishes its dimensions (thickness 0.2–4 mm, width 5–1600 mm in its attributes, with a strip and sheet dimension table); its minimum order is not published, so the minimum for your construction is a quotation item.
For heat-exchange buying, the documented choice is between this clad construction and the plain 1100 fin coil for non-brazed assemblies: state the joining method in the enquiry, and the quotation will be built on the construction that matches it.
What is the clad construction?
4343/3003/7072, per the listing title, which states a 4–30% clad range: a 3003 core with 4xxx and 7xxx clad layers. The listing's published structures include 10% 4343 plus 10% 7072 on 3003, and two-side 4343 at 7–10% on 3003.
Is brazing sheet the same as fin stock?
The clad fin material and brazing sheet are the same construction family; plain 1100 fin coil is the documented fin product for non-brazed assemblies.
Are dimensions published?
Yes — the Made-in-China listing publishes thickness 0.2–4 mm, width 5–1600 mm and length up to 10000 mm (attributes), with a dimension table for strip and sheet. The minimum order is not published and is confirmed per enquiry.
Get a written quotation
Send the alloy, temper, thickness, width and quantity you need. Quotations state the applicable minimum order and lead time for that exact specification.
Request a quotation for this product