GNEE supplied 1050-O stucco embossed aluminum sheet in 0.1 mm to a South Korean home-appliance OEM for oven-cavity liners - soft O temper for tight bending, an oil-free surface, and full EN 10204 3.1 MTC traceability. This case follows the same specification triggered by an Electronics R&D inquiry for an ultra-thin oven-cavity insulation liner.
GNEE Aluminum completed a shipment of 1050-O stucco embossed aluminum sheet to a South Korean home-appliance manufacturer. The buyer needed an ultra-thin, highly formable liner material that could be bent to wrap tightly around the complex geometry of an oven cavity. After a sample and specification round, the order was confirmed at 0.1 mm (100 micron) base thickness in the fully annealed O temper, supplied as slit coil with a Stucco (Orange Peel) embossed face.
Market Background: Buying Aluminum Sheet in South Korea
Korean buyers specify material against KS D 6701 (the Korean aluminum sheet standard) and frequently cross-reference JIS H 4000 (Japanese) because the two systems are familiar to local engineers. Factory audits and documented traceability are normal expectations, not exceptions. Regional appliance and decorative aluminum import volume is indicative in the low-thousands of tons per year; the exact figure depends on the HS classification (7606.11 / 7606.12) and any trade-remedy measures, which are confirmed per shipment.
Customer Technical Requirements
The Korean OEM's requirement was not a generic "aluminum sheet" brief. It was driven by a functional need: the liner must be highly flexible and easily bent to conform tightly to the oven cavity, and the surface must be clean enough to pass appliance-grade incoming inspection. Those two needs drove every line of the order specification below.
Order Specification
| Item | Specification |
|---|---|
| Product | 1050 O Stucco Embossed Aluminum Sheet (Orange Peel pattern) |
| Alloy / Temper | 1050, O (annealed, soft) - selected for maximum formability |
| Base thickness | 0.1 mm (100 micron) - custom thin gauge, below the common 0.2 mm floor |
| Width | Slit to customer drawing |
| Form | Coil, slit and eye-protected for narrow-width blanking |
| Pattern | Stucco / Orange Peel, visible face confirmed with buyer |
| Surface | Mill finish, degreased and oil-free (appliance-grade cleanliness) |
| Standards | ASTM B209; KS D 6701 (Korea); JIS H 4000 referenced; EN 485-2 / 573-3 available |
| Quantity | Sample / trial batch |
| Destination | South Korea |
| Lead time | 15–30 days (sample / trial schedule) |
| Certificate | EN 10204 3.1 MTC with heat number; third-party inspection on request |
Quality Control
For an appliance liner, the rejection risks are specific and costly: a coil that measures thin, carries residual oil, or arrives with white rust can stop a production line. GNEE's QC for this order targeted the four priority pain points Korean buyers name most:
Thickness and emboss depth measured per coil. Each coil is checked at 5/9 points for base thickness and emboss depth, so the buyer receives a measured report instead of a nominal claim. This prevents the "booked 0.1 mm, measured 0.09 mm" gap that causes misfit on tight cavities.
Oil-free, degreased surface. After embossing, the sheet is cleaned and verified for surface cleanliness. An appliance liner that arrives oily fails incoming inspection and can contaminate the line, so a degreasing / cleanliness statement ships with the coil.
Moisture-proof export packing. Coils are wrapped with waterproof paper plus desiccant and edge protection to prevent water-stain and white-rust on opening - the most common seaworthy-delivery complaint.
Temper verified as O, not strain-hardened. The order is confirmed against the forming process before release: O temper for deep drawing, never H14. Shipping the wrong temper is the single fastest way to cause stamping cracks at the buyer's plant.
Traceability. Coil tag, EN 10204 3.1 MTC and heat number are cross-checked before loading so every coil maps to its certificate at the buyer's receiving dock.
Export Packaging for Safe Delivery to South Korea
The coils were packed for a long sea voyage and humidity exposure: waterproof paper wrap, an inner desiccant pack, radial and face edge protectors, and a heavy corrugated and steel-strip outer band, then loaded into a standard export container with dunnage to stop coil shift. GNEE photographs the loaded container at the warehouse before sealing, and those photos are shared with the buyer so the packing condition is documented end to end.
Available Sizes from GNEE
Beyond this 0.1 mm O-temper coil, GNEE supplies 1050 stucco embossed aluminum sheet and coil across the thickness range Korean and regional buyers use, with other 1xxx / 3xxx / 5xxx base alloys available on request.
| Dimension type | Typical range | Tolerance standard |
|---|---|---|
| Base thickness | 0.1 – 3.0 mm (0.1–0.5 ultra-thin / lighting; 0.5–1.2 main; 1.2–2.0; 2.0–3.0) | ASTM B209 / ANSI H35.2(M) |
| Width | 800 – 1500 mm standard, narrower slit widths on request | ASTM B209 / ANSI H35.2(M) |
| Temper | O, H14, H24 (O supplied for deep-drawing liners) | ASTM B209 / EN 485-2 |
| Pattern | Stucco (Orange Peel), Fine Stucco, Deep Stucco | ASTM B632 (embossed sheet) |
| Form | Coil or sheet, slit and cut to length | Per order drawing |
Thickness and width tolerances follow ASTM B209 and ANSI H35.2(M); exact bilateral limits are quoted against the ordered size on the quotation.
About GNEE
GNEE Aluminum has supplied aluminum products since 2008 and now ships to more than 100 countries and regions. For stucco embossed sheet we keep flexible MOQ - both small trial orders and large-volume orders are accepted - with typical lead times of 15–30 days. Every order ships with an EN 10204 3.1 mill test certificate; EN 10204 3.2 and third-party inspection (SGS / BV / TUV) can be arranged on request. Pricing is quoted per order against the SMM (Shanghai Metals Market) aluminum ingot index.
FAQ
Why is 1050-O chosen for an oven-cavity liner instead of a harder temper?
The cavity liner must bend and wrap tightly around a complex oven shape without cracking. 1050 in the O (annealed) temper is the softest, most ductile condition of the alloy, so it deep-draws and forms cleanly. A strain-hardened temper such as H14 would spring back and crack on tight radii. 1050 also gives high reflectivity (typically above 85% for 1xxx alloys), which suits reflective liners.
Can GNEE supply 0.1 mm (100 micron) stucco embossed aluminum sheet?
Yes. 0.1 mm is below the common 0.2 mm commercial floor and is treated as a custom thin gauge, so it is supplied against a confirmed specification and usually starts with a sample or trial coil. GNEE rolls 1050-O stucco embossed coil down to 0.1 mm, slit to the required width, and verifies thickness and emboss depth per coil before shipment.
Which standards and certificates apply to aluminum sheet shipped to South Korea?
For the Korean market the order is supplied to ASTM B209 and KS D 6701 (Korean aluminum sheet standard), with JIS H 4000 also recognised because Korean appliance buyers frequently cross-reference the Japanese system. Every coil ships with an EN 10204 3.1 mill test certificate showing heat number, chemistry and mechanical results, and GNEE supports customer factory audits and third-party inspection (SGS / BV / TUV).
