Aluminium sheet is the starting point for most fabrication work: laser and punch blanks, brake-pressed panels, welded tanks, marine decks, vehicle bodies and architectural cladding. KONCEN rolls and converts sheet in Henan, China, so both the alloy and the gauge are made to the order rather than bought to whatever the warehouse happens to hold.

Thin sheet (0.2–6.0 mm) is normally supplied from coil and cut to length, which lets us hold length tolerance tightly and avoid the camber you get from re-coiling. Thicker plate (6–200 mm) is hot rolled, stress-relieved and sawn, and is used for mould bases, jigs, aerospace tooling plate and heavy structural work.

Tell us the fabrication route — forming, welding, anodising, painting or machining — and we will recommend the temper that behaves best in it. 5052-H32 for forming and marine, 6061-T6 for machining and structural load, 3003 for general fabrication, 1050/1060 where conductivity or reflectivity matters more than strength.

Cut-to-length service: sheet can be levelled, cut to any length from 300 mm, and protected with PVC film or interleaving paper before packing.

Coil is the form you want whenever the next step is continuous: roll forming, slitting, press feeding, laminating or coating. KONCEN casts and cold rolls coil at its own base in Henan, so gauge, temper and surface are set to the order and the coil ID, OD and weight are matched to your decoiler.

For roofing and cladding we run 3003, 3004 and 5052 in H24/H26 tempers that hold shape after roll forming without spring-back. For deep drawing and spinning we supply 1050 and 1060 in O or H12. For insulation jacketing and ducting, 1060 and 3003 coil is laminated or embossed in the same plant, which removes one handling step and one layer of cost.

Coil can be shipped mill finish, pre-lubricated for drawing, PVC filmed, colour coated (PE or PVDF), embossed with stucco or diamond pattern, or mirror polished. Slitting to any width from 16 mm is done on the same line — see aluminium strip for narrow widths.

Coil ID is supplied at 508 mm as standard; 305 mm, 405 mm and 610 mm can be produced to match your uncoiler mandrel.

Strip is what you buy when the width matters more than the sheet size. We slit master coil on dedicated lines with knife setting checked against the order, holding width to ±0.05 mm and edge burr below 5% of thickness, which is what keeps a transformer winding machine or a roll former running without stoppages.

Transformer grade strip is the most demanding: 1060-O in 0.2–3.0 mm with conductivity checked at 61% IACS minimum, clean edges and no camber, wound so that the conductor lays flat in the winding. Cable armour and shielding strip uses the same alloy with different temper and packing.

Lighter gauges go into venetian blind slat, channel letter coil, bottle cap stock and heat exchanger fin. Winding can be traverse (oscillate) wound for long runs on small diameter, ribbon wound for thicker strip, or pad wound for short lengths. Rounded or deburred edges are available where the strip passes through a die or a hand-guided tool.

Traverse winding gives up to 20× more running length per coil on thin gauges — ask for it when your line runs continuously and coil changes cost downtime.

Embossing rolls a raised pattern into the surface as the metal passes through the mill. The pattern does three useful things: it hides handling marks and dents, it adds stiffness so a thinner gauge can do the same job, and it breaks up light reflection so large areas read evenly instead of showing every wave in the panel.

Stucco is the standard pattern for pipe and vessel insulation jacketing — it is the finish most insulation contractors specify because it sheds water and survives bending over large diameters. Diamond (or tread plate pattern) is used for anti-slip flooring, ramps, vehicle steps and cold-room floors. Orange peel and finer textures are chosen for decorative panels, lift interiors and appliance backs.

We emboss 1060, 1100, 3003 and 5052 in coil or sheet. Because the pattern is rolled in, not applied, there is no coating to scratch off, and the material can be anodised or painted afterwards if the project calls for colour.

Embossing adds roughly 0.02–0.10 mm of pattern depth: specify base gauge plus pattern so the finished thickness matches your design.

Mirror finish is produced by rolling and polishing the surface until it reflects like glass. The grade you need is set by the job: a luminaire reflector needs high specular reflection to throw light forward, a solar reflector needs high total reflectance across the spectrum, and a decorative trim simply needs an even, defect-free shine that survives handling.

We polish 1070 and 1085 for the highest reflectivity, 1050 and 1060 for general reflectors, and 3003 or 5052 where the part also has to be formed or welded. The surface is protected with peelable PVC film so it reaches your press without scratching, and the film stays on through forming.

Anodising after polishing gives a harder, more durable reflective layer and is the usual choice for outdoor lighting and architectural reflectors. Without anodising, mirror aluminium is best kept indoors or behind a cover — the polished surface will dull slowly in a polluted or coastal atmosphere.

Always specify whether you need specular or diffuse reflectance — the two numbers differ by more than 20 percentage points on the same sheet and they are not interchangeable.

Pre-painted (colour coated) aluminium is coil-coated before it reaches the fabricator. The metal is cleaned, pre-treated, primed and oven-cured in a continuous line, which gives a far more uniform film than site spraying and removes the paint shop from your production flow entirely.

Polyester (PE) is the workhorse: good colour range and formability at a sensible price, rated roughly 10–15 years for inland architectural use. PVDF (70% Kynar 500 / Hylar 5000 resin) is the specification-grade choice for curtain wall and coastal projects, resisting chalking and fading for 20–25 years. We also run epoxy and modified systems for interior and appliance work.

Colour is matched to RAL, Pantone or a physical sample, with gloss levels from 10% matte to 80% high gloss and textures from smooth to wrinkle and metallic. Coating can be applied to one side or both, and the reverse side is usually given a protective backer coat. Embossed or mirror surfaces can be coated too.

Order coated coil with a protective film and slit after coating where edges must stay unexposed — post-coating slitting keeps the paint edge clean on narrow parts.

Wire is drawn from rolled rod through a series of dies, with intermediate annealing where the reduction is large. What matters in production is consistent diameter, clean surface and the right temper: soft O temper for weaving and forming, harder H18 for springs and straight lengths, and a controlled surface for anything that will be anodised or welded.

We draw 1xxx wire for electrical and chemical uses where conductivity and corrosion resistance lead, 3xxx for general fabrication and rivets, and 5xxx where strength and salt-water resistance are needed. Wire can be supplied bright drawn, anodised, or with a coating for specific applications.

Packing is chosen to suit how you use it: continuous spools sized to your machine's pay-off, catchweight coils, or straightened and cut lengths. Tell us your process and we will set the spool dimensions, traverse and coil weight so the wire runs without snarling.

For weaving and mesh production ask for O temper with controlled cast — it feeds more freely and reduces breakage on high-speed looms.

Foil is the thinnest form aluminium is rolled to. Below 0.01 mm it is called double-zero foil because the gauge has two zeros after the decimal point, and it is rolled as two layers at once — the mating surfaces come out bright and the roll-facing sides matt, which is why one side of household foil is shiny.

Alloy choice follows the application: 1235 and 8079 for flexible packaging laminates and pharmaceutical blister, 8011 for container stock and bottle caps, 8021 for deep-drawn pharmaceutical and pouch laminates, 1100 and 1060 for insulation facing and capacitor foil. Temper ranges from soft O for lamination to H18 for container stock.

We supply jumbo rolls slit to your width and rewound to your core, or converted small rolls for distribution. Pinhole count is controlled and reported on request — it is the number that decides whether a foil can be used for barrier packaging at all.

Pinhole count matters below 0.02 mm: specify the maximum acceptable count per square metre when the foil is used as a barrier layer.