QUALITY STANDARDS & COMPLIANCE
Compliance Standards
Our compliance certifications and standards including ASTM, CPSC, and California Proposition 65 for all chain products.
US MARKET REQUIREMENTS
US Market Quality Scope
Aurelink chain products comply with all applicable US market quality regulations and standards, including ASTM specifications, CPSC safety requirements, and California Proposition 65.
ASTM Standards
All chain products are tested in accordance with relevant ASTM International standards for mechanical properties, material composition, and dimensional tolerances.
CPSC Compliance
Products destined for consumer applications meet US Consumer Product Safety Commission requirements, including lead content limits and mechanical safety standards.
California Prop 65
All materials and surface finishes are verified against California Proposition 65 requirements. We maintain documentation of compliance for lead, cadmium, and phthalates.
Aurelink maintains a comprehensive US market compliance matrix that is updated quarterly. Additional market-specific certifications (EU REACH, RoHS, UKCA) are available upon request. Third-party testing through SGS, Bureau Veritas, and TUV Rheinland can be arranged for any order.
TESTING METHODS & CONDITIONS
Testing Methods & Conditions
Our quality laboratory employs a full suite of testing methodologies aligned with ISO and ASTM standards. Each test is performed under controlled conditions with calibrated equipment.
Tensile Testing
ISO 6892-1 / ASTM E8Determines ultimate tensile strength, yield strength, and elongation of chain links under controlled axial loading.
Salt Spray Corrosion
ISO 9227 / ASTM B117Evaluates corrosion resistance of plated and coated chain surfaces through controlled saline mist exposure.
Coating Thickness
ISO 2178 / ASTM B499Measures plating and coating thickness using X-ray fluorescence and magnetic induction methods for quality assurance.
Dimensional Inspection
ISO 2768 / ASTM A391Verifies all critical dimensions including pitch, inner width, wire diameter, and plate thickness against specification.
Fatigue Testing
ISO 1099 / ASTM E466Assesses chain durability under cyclic loading conditions to validate long-term performance in dynamic applications.
Chemical Analysis
ASTM E415 / ISO 15350Verifies material composition of raw materials and finished products using optical emission spectrometry.
MATERIALS & PRODUCTS
Tested Materials & Product Categories
Every material and product category in our portfolio undergoes a defined testing protocol. Below is a summary of our material certification status and applicable testing standards.
| Material | Product Categories | Tensile | Salt Spray | Coating | Dimensional | Chemical | Status |
|---|---|---|---|---|---|---|---|
| Stainless Steel 304 | Jewellery, Marine, Industrial | ✓ | ✓ | — | ✓ | ✓ | Certified |
| Stainless Steel 316L | Marine, Medical, Food-Grade | ✓ | ✓ | — | ✓ | ✓ | Certified |
| Brass (C27000) | Jewellery, Decorative, Fashion | ✓ | ✓ | ✓ | ✓ | ✓ | Certified |
| Copper (C11000) | Jewellery, Electrical, Decorative | ✓ | ✓ | ✓ | ✓ | ✓ | Certified |
| Carbon Steel | Industrial, Lifting, Heavy-Duty | ✓ | ✓ | ✓ | ✓ | ✓ | Certified |
| Aluminum Alloy | Lightweight, Decorative | ✓ | ✓ | ✓ | ✓ | ✓ | Certified |
| Sterling Silver | Fine Jewellery, Luxury | ✓ | — | — | ✓ | ✓ | Certified |
| Zinc Alloy | Fashion, Costume Jewellery | ✓ | ✓ | ✓ | ✓ | ✓ | Certified |
QUALITY METRICS
Results & Data Fields
Structured quality data is recorded and reported for every production batch. Below are typical test results and the data fields captured in our quality management system.
Typical Tensile Test Results
| Chain Type | Material | Wire Diameter | UTS (kN) | Yield Strength (MPa) | Elongation (%) | Result |
|---|---|---|---|---|---|---|
| Cable Chain | SS304 | 1.2mm | 0.85 | 215 | 42 | Pass |
| Curb Chain | Brass | 2.0mm | 1.45 | 180 | 35 | Pass |
| Anchor Chain | SS316L | 3.5mm | 4.20 | 240 | 48 | Pass |
| Box Chain | SS304 | 1.5mm | 1.10 | 220 | 40 | Pass |
| Figaro Chain | Brass | 2.5mm | 2.05 | 195 | 38 | Pass |
| Snake Chain | SS316L | 0.8mm | 0.45 | 230 | 45 | Pass |
Coating Thickness & Corrosion Resistance
| Finish Type | Target Thickness | Measured Avg | Salt Spray (h) | Corrosion Rating | Adhesion | Result |
|---|---|---|---|---|---|---|
| 18K Gold Plate | 2.5 μm | 2.7 μm | 48 | 9/10 | Pass | Pass |
| IP Gold (PVD) | 1.0 μm | 1.1 μm | 72 | 10/10 | Pass | Pass |
| Silver Plate | 3.0 μm | 3.2 μm | 24 | 8/10 | Pass | Pass |
| IP Rose Gold | 1.0 μm | 1.0 μm | 72 | 10/10 | Pass | Pass |
| IP Gunmetal | 1.0 μm | 1.0 μm | 72 | 10/10 | Pass | Pass |
| Nickel Plate | 5.0 μm | 5.3 μm | 48 | 9/10 | Pass | Pass |
Data Fields Captured Per Batch
DOCUMENTATION
Reports & Certificates
Aurelink provides a comprehensive suite of quality documentation with every order. All reports are generated from calibrated equipment and can be verified by third-party inspectors.
Mill Certificates
Original material certificates from our raw material suppliers, documenting chemical composition, mechanical properties, and heat/lot numbers for full upstream traceability.
- Chemical composition per heat
- Mechanical property verification
- Supplier mill identification
- ISO 10474 3.1 / EN 10204 3.1
Certificate of Conformance
Our COC confirms that the supplied products meet all specified requirements — dimensions, material grade, finish, mechanical properties, and packaging specifications.
- Order reference and batch numbers
- Specification conformance statement
- QC inspector sign-off
- Issued with every shipment
Third-Party Inspection Reports
Independent inspection reports from accredited agencies including SGS, Bureau Veritas, and TUV Rheinland. Available upon request for any order.
- Independent verification
- SGS, BV, TUV accredited
- Pre-shipment inspection
- Loading supervision available
RoHS & REACH Compliance
Documentation confirming compliance with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) 1907/2006 for restricted substances.
- RoHS substance screening
- REACH SVHC declaration
- Lab test reports included
- Updated annually
BATCH TRACEABILITY
End-to-End Traceability System
Every Aurelink chain is fully traceable from raw material to finished product. Our batch traceability system provides complete visibility into the production journey of your order.
Raw Material Receipt
Each incoming material lot is assigned a unique receiving code. Mill certificates are verified against purchase specifications. Material samples are taken for in-house chemical analysis verification before acceptance into inventory.
Production Batch Assignment
When a production order is released, materials are issued from inventory with full lot tracking. Each production batch receives a unique batch number that links back to the raw material receiving codes.
In-Process Quality Checks
At defined control points throughout production, quality data is recorded against the batch number. This includes dimensional checks, weld inspection, plating thickness measurement, and visual inspection results.
Final Inspection & Testing
Completed batches undergo final inspection including tensile testing, salt spray testing, and coating thickness verification. All test results are linked to the batch number and stored in our quality database.
Packaging & Shipment
Each shipment is labelled with the batch number and includes all relevant quality documentation. The batch number provides a permanent link back through the entire production chain, enabling full traceability for years after delivery.
Aurelink retains all quality records for a minimum of 5 years. If a quality concern arises, we can trace back to the exact raw material lot, production date, machine line, operator, and all inspection results within hours — not days. This rapid traceability capability is one of the key advantages of our vertically integrated production model.