NEWS
A leading European construction group visited GNEE Steel's factory to audit production lines and quality control, resulting in a long-term DX51D galvanized steel coil supply agreement. Contact us for a factory audit and customized coil quote.
Looking for a reliable partner for your large-scale construction material needs? A delegation from a major European construction conglomerate recently completed a comprehensive visit and audit at the GNEE Steel production facility. The visit culminated in the signing of a significant long-term supply contract for DX51D galvanized steel coil, reinforcing GNEE's position as a trusted manufacturer for global infrastructure projects.

Galvanized steel coil
- Who We Are: A Factory Open to Global Partners
As a direct DX51D galvanized steel coil factory with over 20 years of specialization in coated steel products, GNEE Steel prides itself on transparency and build-to-order quality. We welcome clients worldwide to visit our premises, witness our advanced galvanizing lines, and verify our stringent quality management systems firsthand.
The client, a key player in European modular construction, required a stable, high-quality supply of DX51D galvanized steel coil for prefabricated building panels. Their primary objectives for the visit were:
To audit the entire production process from cold-rolled substrate to final packaging.
To verify compliance with EN 10346 standards and specific project certifications.
To assess production capacity and logistics capabilities for JIT (Just-In-Time) delivery schedules.
The delegation, led by their Chief Procurement Officer and Quality Director, spent two days at our facility. The tour included:
- Raw Material Warehouse: Inspection of incoming hot-rolled coils and quality documentation.
- Pickling & Cold Rolling Section: Understanding substrate preparation and thickness control.
- Continuous Hot-Dip Galvanizing Line: A detailed review of the zinc bath control, coating weight measurement systems (X-ray gauges), and alloying processes.
- Quality Lab: Witnessing real-time tests, including coating weight checks (ISO 1460), bend tests for adhesion, and spectrometric chemical analysis.
A key part of the visit was a technical seminar where our engineers presented detailed data on DX51D galvanized steel coil:
- Agreed Technical Specifications for the Contract
| Parameter | Client Requirement | GNEE Steel Guarantee | Standard |
|---|---|---|---|
| Grade & Standard | DX51D+Z, EN 10346 | Fully Compliant | EN 10346 |
| Coating Designation | Z275 (275 g/m² min) | Z275 - Z300 guaranteed | ISO 1460 |
| Tensile Strength | 300 - 400 MPa | 320 - 380 MPa (Typical) | ISO 6892-1 |
| Special Request: | Oiled surface for extra rust prevention during海运 | Yes, with certified anti-stain oil | Per client spec |
| Packaging | Seaworthy, waterproof, coil ID protected | Steel sleeves + waterproof wrapping + edge guards | GNEE Standard |
Impressed by the factory scale, automation level, and transparent quality controls, the client's team proceeded to finalize negotiations on-site. The signed contract encompasses:
Annual supply of several thousand tons of DX51D galvanized steel coil.
Quarterly delivery schedules aligned with their production calendar.
Agreements on third-party inspection (SGS) for each shipment.
This successful visit and contract signing underscore the importance of supplier transparency and technical alignment. GNEE Steel is committed to building long-term partnerships through open-door factory policies and reliable product quality. Are you considering a new supplier for DX51D galvanized steel coil? Contact us today to schedule your own factory visit and discuss your project requirements.
- Available Steel Grade
|
Available Steel Grade(Ensure weight and support third-party testing) |
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|
Steel grade |
Coating |
Yield(MPA) |
Tensile(MPA) |
Elongation(%) |
|
DX51D |
Z,ZF |
-- |
270-500 |
20 |
|
DX52D |
Z,ZF |
140-300 |
270-420 |
22 |
|
DX53D |
Z,ZF |
140-260 |
270-380 |
26 |
|
DX54D |
Z,ZF |
140-220 |
270-350 |
30 |
|
S220GD |
Z,ZF |
220 |
300 |
18 |
|
S250GD |
Z,ZF |
250 |
330 |
17 |
|
S280GD |
Z,ZF |
280 |
360 |
16 |
|
S320GD |
Z,ZF |
320 |
390 |
15 |
|
S350GD |
Z,ZF |
350 |
420 |
14 |
|
S400GD |
Z,ZF |
400 |
470 |
-- |
|
S450GD |
Z,ZF |
450 |
530 |
-- |
|
S500GD |
Z,ZF |
500 |
560 |
-- |
|
Select type Galvanized Steel based on requirements |
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