Covering the full lifecycle and performance indicators of fasteners, with CNAS and ILAC authoritative qualifications, helping enterprises manage quality risks and overcome international trade barriers.
Testing scope covers the "Full Lifecycle" and "Full Performance Indicators" of fasteners
| Testing Category | Core Testing Items | Typical Equipment |
|---|---|---|
| Dimensions & Geometric Accuracy | Thread Go/No-Go, Major/Pitch/Minor Dia, Head Dimensions, Form/Positional Tolerance, etc. | Thread Comprehensive Measuring Instrument, CMM, Optical Projector |
| Mechanical Properties | Tensile Strength, Yield Strength, Proof Load, Hardness, Impact Toughness, etc. | Universal Testing Machine, Servo-Hydraulic Tensile Machine, Hardness Tester |
| Metallographic & Material Analysis | Microstructure, Decarburization, Carburization, Non-metallic Inclusions, Case Depth | Metallographic Microscope, Image Analysis System, Micro-hardness Tester |
| Chemical Composition | Quantitative analysis of C, Si, Mn, P, S, Cr, Mo, Ni, etc. | OES, Carbon-Sulfur Analyzer, ICP Spectrometer |
| Surface Treatment & Corrosion | Coating Thickness, Salt Spray Test (NSS/ASS), Hydrogen Embrittlement, Coating Adhesion | Coating Thickness Gauge, Salt Spray Chamber, Constant Stress Endurance Tester |