Aluminum Coil Supplier in China — Mill-Direct Coil Stock, ISO 9001
Aluminum coil across 1xxx, 3xxx, 5xxx, and 6xxx alloys, slit to width on our own line, supplied mill-direct with full EN 10204 3.1 traceability on every coil.
Confirm the gauge and width tolerance the mill can hold, whether they slit coil in-house or outsource it, and request a Mill Test Certificate in EN 10204 3.1 format traceable to a heat number for the specific coil lot. Also confirm coil weight and inner diameter (ID) compatibility with your uncoiling or processing equipment before ordering — mismatched ID is a common and avoidable problem.
Why Coil Sourcing Has Its Own Failure Points
Coil introduces variables that sheet and plate buyers don’t deal with: gauge consistency across the full coil length, edge condition after slitting, coil set (the curvature that remains after uncoiling), and inner diameter compatibility with your line equipment. A supplier that produces good flat sheet can still ship coil with inconsistent gauge toward the tail end, or an ID that doesn’t fit your decoiler — problems that only show up once the coil is on your production floor.
Our Own Slitting Line — No Outsourced Handoff
Rolling and slitting happen under one roof, so width and edge quality are controlled by the same QC process as the coil itself. Send your alloy, gauge, and width — we’ll confirm feasibility and mill-direct pricing within 2 hours.
→ Request a Mill-Direct QuoteWhat to Specify: Gauge, Width, and Alloy
Coil is ordered by gauge (thickness), width, and alloy/temper — the same three specification points buyers get wrong most often when relying on a generic “aluminum coil” quote with no dimensional range attached.
| Alloy Series | Common Temper | Typical Use |
|---|---|---|
| 1xxx (1050, 1060, 1100) | O, H14 | Heat exchanger fin stock, general fabrication |
| 3xxx (3003, 3105) | H14, H24 | Roofing, gutters, general sheet metal |
| 5xxx (5052, 5083) | H32, H34 | Structural coil stock, marine-adjacent fabrication |
| 6xxx (6061, 6063) | T4, T6 | Structural components requiring higher strength |
Standard gauge range runs approximately 0.15mm to 6mm, with coil width from 100mm to 1600mm — confirm your exact combination is within the mill’s regular production range before quoting, since out-of-range gauge/width combinations may require a special run.
Slit-to-Width: What to Ask
Most coil buyers need a specific width narrower than master coil, not the raw mill width. Whether the supplier slits in-house or outsources this step directly affects lead time, edge quality, and how tight a width tolerance they can commit to.
Know your gauge, width, and alloy? Get a firm mill-direct price on it now.
Get Pricing →Coil Weight and Inner Diameter Compatibility
Confirm coil weight and inner diameter (ID) match your decoiler before ordering — a mismatch is a common and avoidable problem. Standard IDs are typically 405mm or 505mm, but this varies by mill. To calculate expected coil weight from gauge, width, and length before you request a quote, use our Aluminum Coil Weight Calculator — useful for cross-checking any supplier’s quoted weight against the theoretical figure.
Documentation to Request Before You Order
MOQ and Pricing Structure
Priced off current LME aluminum + processing premium, varying by alloy, gauge, and whether slitting to custom width is required. Coil MOQ is typically set per master coil weight; slitting to a narrower width may carry a separate minimum on top of the base coil order. Always verify a supplier’s quoted weight against the theoretical figure using our Aluminum Coil Weight Calculator before comparing prices.
Lower MOQ negotiation strategies: Aluminum Sheet Factory MOQ: 4 Procurement Strategies to Lower Limits.
Standard Payment Terms
New clients: 30% deposit on confirmation, 70% before shipment. LC accepted for larger orders.
Pre-Order Specification Checklist
Why Buyers Choose Tianjin Ruishengchang for Coil
Tianjin Ruishengchang manufactures aluminum coil across 1xxx, 3xxx, 5xxx, and 6xxx alloy series, with in-house slitting to convert master coil into your finished width — supplied mill-direct.
In-house slitting line
Rolling and slitting under one roof — no outsourced handoff, no added lead time waiting on a third-party slitter.
Mill-direct, no trading markup
You work directly with the production engineers manufacturing your order — not a reseller relaying your specification to someone else’s factory.
Full documentation as standard
Every coil lot includes a Mill Test Certificate traceable to heat number, EN 10204 3.1 format, with third-party inspection available on request.
Reliable delivery
Consistent production scheduling and logistics partnerships mean we deliver on the lead times we confirm.
Confirm Gauge, Width, and ID Before You Confirm Price
Coil-specific variables — gauge consistency, slitting quality, and ID compatibility — don’t show up in a basic price comparison, but they determine whether the coil actually runs on your equipment without issue. Confirm these details before requesting a final quote.
General supplier vetting: How to Choose an Aluminum Sheet & Plate Supplier in China. Ready to order? Share your spec below.
FAQ: Sourcing Aluminum Coil from China
Q1: What gauge range does aluminum coil come in?
A1: Typically 0.15mm to 6mm in thickness, with widths from 100mm to 1600mm. Confirm your exact gauge/width combination is within the supplier’s regular production range.
Q2: Can aluminum coil be slit to a custom width?
A2: Yes, mills with slitting line capability can cut master coil to custom widths. Confirm whether slitting is done in-house or outsourced, since that affects lead time and quality control.
Q3: What documentation should an aluminum coil supplier provide?
A3: A Mill Test Certificate in EN 10204 3.1 format, traceable to a heat number for the specific coil lot. Third-party inspection and ISO 9001 certification are commonly requested alongside it.
Tell us your requirements — get a tailored solution
- Alloy, gauge & width recommendation
- MOQ and lead time confirmation
- Mill-direct competitive pricing
- Full MTC and certification package
Get Mill-Direct Pricing on Aluminum Coil Within 2 Hours
Tell us your alloy, gauge, width, and quantity. Our production engineers will confirm stock availability, lead time, and a firm mill-direct unit price — no middlemen, no inflated margins.
Quick Inquiry — what we need from you
Need a quick quotation on aluminum coil? Click to chat with our sales engineer on WhatsApp — typical response under 30 minutes during business hours.
Chat on WhatsApp