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Help CenterStrict Tolerance Aluminum Coil 1100 3003 H14 With Mill Test Report and 12-Month Warranty
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We are Hemaokang Steel (Shandong) Co., Ltd., an established manufacturer and exporter based in Liaocheng, Shandong, China. Our strict tolerance aluminum coil in alloys 1100 and 3003 with H14 temper is engineered for buyers who demand dimensional precision, consistent mechanical properties, and full traceability. Each coil is delivered with a comprehensive mill test report, ensuring every batch meets your exact specifications. With a 12-month warranty and a production team experienced in serving global markets, we provide a dependable supply solution for your manufacturing needs.
This aluminum coil combines the natural corrosion resistance of 1000-series and the higher strength of 3000-series alloys, offering balanced formability and durability for a wide range of industrial applications. The H14 temper provides a half-hard state, giving the material sufficient rigidity for stamping and bending while retaining good ductility. Strict thickness control and precise width tolerances reduce material waste and improve production efficiency for converters, fabricators, and OEMs.
Key Product Features
- Strict tolerance control: Thickness deviation maintained within ±0.005 mm, ensuring uniform feeding and consistent finished product quality.
- Dual alloy options: 1100 offers superior corrosion resistance and thermal conductivity; 3003 provides higher strength while preserving formability.
- H14 temper: Half-hard state designed for general sheet metal work, including bending, roll forming, and moderate drawing.
- Mill test report included: Certified documentation supplied with each shipment, detailing chemical composition, mechanical properties, and dimensional measurements.
- Surface quality: Clean, smooth mill finish or optional stucco embossed surface for enhanced grip and paint adhesion.
- Customizable dimensions: Coil width, inner diameter, and outer diameter can be tailored to your specific production line requirements.
- 12-month warranty: Covers manufacturing defects and material consistency, giving you confidence for long-term projects.
Technical Specifications
| Alloy | 1100 / 3003 |
| Temper | H14 |
| Thickness Range | 0.3 mm – 6.0 mm (customizable) |
| Width Range | 100 mm – 2000 mm |
| Inner Diameter | 405 mm / 508 mm / 610 mm (or custom) |
| Tensile Strength (3003-H14) | 150 – 200 MPa |
| Elongation | ≥ 3% |
| Surface | Mill finish, embossed, diamond, or stucco (optional) |
| Standards | ASTM B209, EN 573-1, GB/T 3190 |
Operational Benefits
- Reduced downtime: Precise tolerances minimize adjustments on high-speed stamping and punching lines.
- Lower scrap rate: Uniform thickness and flatness allow exact bending and forming without rejects.
- Stable supply chain: We maintain an annual export value of US$50–100 million and ship from Qingdao port, ensuring on-time delivery to major destinations worldwide.
- Technical support: Our engineers assist with grade selection, temper optimization, and surface preparation to match your end-use requirements.
- Flexible packaging: Coils are packed with anti-rust paper, plastic film, and steel pallets for safe ocean or rail transport.
Quality Assurance and Company Credibility
Hemaokang Steel operates under an ISO9001-certified quality management system, and every production stage—from casting to final inspection—is monitored with calibrated equipment. The mill test report is not a mere formality; it gives you complete visibility into the chemical composition and mechanical behavior of each coil. Our workforce of 51–100 employees brings specialized expertise in aluminum processing, while our established export channels cover North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. In 2025, our company continues to expand capacity while maintaining the same strict quality standards that have earned us a solid reputation among industrial buyers.
We understand that procurement decisions require confidence in both product and supplier. That is why we back every aluminum coil with a 12-month warranty—if any manufacturing defect occurs under normal use, we will replace or compensate the affected material as per our contract terms. Combined with responsive customer service and transparent documentation, we aim to be your long-term partner for aluminum coil supplies. Contact us today to request a free sample, custom quotation, or technical datasheet. Let us help you improve your production efficiency with strict tolerance aluminum coil that performs as promised.
Frequently Asked Questions
Q1: What is the difference between alloy 1100 and 3003?
1100 aluminum has higher corrosion resistance and thermal conductivity, making it ideal for chemical equipment and heat exchangers. 3003 aluminum adds manganese, providing about 20% higher strength while retaining excellent formability, suitable for general sheet metal work and storage tanks.
Q2: How does the mill test report benefit my fabrication process?
The mill test report verifies the exact chemical analysis and mechanical properties of the coil. With this data, your quality control team can pre-determine forming parameters, welding settings, and surface treatment compatibility, reducing first-run adjustments and internal testing costs.
Q3: Can I get a custom width or inner diameter for my slitting line?
Yes, we provide customized widths from 100 mm up to 2000 mm, and inner diameters of 405 mm, 508 mm, 610 mm, or your specified size. Please share your exact coil specifications and tolerances, and our production team will confirm feasibility.
Q4: Is the H14 temper suitable for deep drawing?
H14 is a half-hard temper, which works well for moderate bending and light forming. For deeper drawing, we recommend the softer O or H12 temper. We are able to supply custom tempers upon request to match your specific fabrication method.
Q5: What surface finishes are available for this aluminum coil?
Standard is mill finish with light oil. Optional surfaces include stucco embossed, diamond pattern, or brushed finish. The surface can be selected to improve grip, paint adhesion, or reflectivity depending on your application.
Q6: How is the 12-month warranty applied?
The warranty covers defects in material and workmanship, including lamination, surface delamination, or incorrect dimensions as specified in the contract. If such a defect is confirmed, we will replace the affected quantity or issue a credit based on the purchase agreement. The warranty does not cover damage caused by improper handling, storage, or processing after delivery.
Q7: How long does delivery take to overseas ports?
Standard production takes 15–25 days after deposit, depending on order quantity and surface treatment. Shipping from Qingdao port to North America or Europe typically takes 25–40 days. We provide real-time tracking and all necessary export documentation.
Q8: Can you supply additional documents like COA or commercial invoice?
Yes, we provide a-certificate of analysis, commercial invoice, packing list, bill of lading, and other shipping documents as required by your customs or contract. For special documentation needs, please mention them at the time of inquiry.
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