Quality at Hiyet isn't a slogan — it's a discipline built into the production line. Every shift, every part, every batch is documented, sampled and traceable.
Independent third-party certification across quality, automotive and environmental compliance — full documentation available under NDA.
Quality Management System
Automotive QMS
Environmental Management
Hazardous Substance Compliance
EU Chemical Compliance
Independent Supplier Audit
European Conformity
Aerospace QMS in preparation
Six dedicated QC engineers and an in-house lab with the equipment to verify dimension, alloy, microstructure and surface integrity.
| Equipment | Make / Model | Capability |
|---|---|---|
| CMM (3-axis) | Hexagon Global S 7.10.7 | Volumetric accuracy ≤ 2.4 µm |
| Industrial X-ray | Yxlon Y.MU2000-D | Porosity detection per ASTM E155 |
| OES Spectrometer | Bruker Q4 TASMAN | Full alloy analysis on each melt |
| Surface Roughness | Mitutoyo SJ-410 | Ra 0.05 – 50 µm |
| Universal Tester | Instron 5982 | 0 – 100 kN, UTS & elongation |
| Hardness Tester | Wilson Brinell BH3000 | HB / HV / HRC scales |
| Salt-Spray Chamber | Q-FOG CCT 600 | NSS, AASS, CASS to ASTM B117 |
| Leak / Pressure Test | ATEQ F520 | Up to 5 MPa, helium option |
| Optical Microscope | Zeiss Axio Vert.A1 | 50–1000× metallographic |
Each ingot OES-verified; inserts and packaging audited.
Full dimensional, X-ray, alloy & surface check before lot release.
SPC charts every 2 hours: shot weight, temperature, cycle time.
AQL 1.0 sampling, 100% visual, dimensional on critical features.
Packaging audit, container moisture check, photo-document shipment.
The paperwork your goods-inwards team and auditor need — delivered with every container.
OES analysis of the heat number used for your lot, plus heat-treat batch record.
CMM inspection report on critical-to-quality features per drawing.
Detailed packing list with carton dimensions, weight and HS code.
Level 1–3 PPAP package available on request, including PFD, PFMEA, MSA and capability study.
Substance declarations and IMDS entries for automotive customers.
QR-code labels on cartons link to heat, shift, line and inspector for full recall traceability.
We welcome on-site and remote audits. Customers may bring third-party auditors at any time during business hours.