NEWS
Are you looking for ISO-certified galvanized steel plates from a reliable Chinese manufacturer? GNEE Steel has been supplying high-quality steel products to over 50 countries since 2006. Our galvanized steel plates meet international standards and come with complete quality certification documents.
Quality certification is crucial when purchasing steel products, especially for export. It ensures the products meet safety, performance, and environmental requirements. GNEE Steel holds the following certifications:
- ISO 9001: Quality Management System
- ISO 14001: Environmental Management System
- OHSAS 18001: Occupational Health and Safety Management System
- Product certifications: ASTM, EN, JIS, GB standards
- Third-party testing: SGS, BV, TÜV reports available
International Standards for Galvanized Steel Plates
Our galvanized steel plates comply with major international standards, making them suitable for global projects:
| Standard | Country/Region | Main Grades | Application |
|---|---|---|---|
| ASTM A653 | USA, Canada | G30, G60, G90 | Construction, automotive |
| EN 10346 | Europe | DX51D, DX52D | Building materials, appliances |
| JIS G3302 | Japan | SGCC, SGCD | Electrical equipment, furniture |
| GB/T 2518 | China | Q235, Q345 | Structural engineering, machinery |
We can also produce according to customer-specific standards with prior agreement.
Quality Testing Reports Provided by GNEE Steel
Every shipment from GNEE Steel includes detailed quality testing reports, including:
Chemical composition analysis report
Mechanical properties test report (yield strength, tensile strength, elongation)
Zinc coating thickness test report
Surface quality inspection report
Dimensional accuracy test report
Salt spray test report (upon request)
These reports are issued by our in-house laboratory, which is accredited by CNAS (China National Accreditation Service for Conformity Assessment).
Galvanized steel sheet testing
Global Delivery Network of GNEE Steel
We understand that timely delivery is crucial for your project schedule. That's why we've established a comprehensive global delivery network:
Major ports: Shanghai, Tianjin, Qingdao, Guangzhou (China)
Delivery time: 7-14 days to Asian countries, 20-30 days to European countries, 25-35 days to North American countries
Shipping methods: Container shipping (20'GP, 40'GP, 40'HQ), bulk shipping for large orders
Logistics partners: Maersk, COSCO, MSC, Hapag-Lloyd
Customs clearance: We provide all necessary documents (commercial invoice, packing list, certificate of origin, quality report)
After-Sales Service
At GNEE Steel, we value long-term customer relationships. Our after-sales service includes:
24/7 technical support
Product replacement for quality issues (within 30 days of receipt)
Regular follow-up to ensure product performance
Feedback collection for continuous improvement
For ISO-certified galvanized steel plates with reliable quality and global delivery, choose GNEE Steel as your long-term supplier. We provide complete certification documents, professional logistics services, and excellent after-sales support. Contact us now to get a competitive quote and start your order!
- Available Steel Grade
|
Grade |
Yield Strength MPa≥ |
Tensile Strength MPa≥ |
Elongation A%≥ |
|
DX51D Z/ZM/AZ/AM |
240-380 |
270-500 |
22 |
|
DX52D Z/ZM/AZ/AM |
140-300 |
270-420 |
26 |
|
DX53D Z/ZM/AZ/AM |
140-260 |
270-380 |
30 |
|
DX54D Z/ZM/AZ/AM |
120-220 |
260-350 |
36 |
|
S220GD Z/ZM/AM |
220 |
300 |
20 |
|
S250GD Z/ZM/AZ/AM |
250 |
330 |
19 |
|
S280GD Z/ZM/AM |
280 |
360 |
18 |
|
S300GD A/AM |
300 |
380 |
18 |
|
S320GD Z/ZM/AM |
320 |
390 |
17 |
|
S350GD Z/ZM/AZ/AM |
350 |
420 |
16 |
|
S450GD A/AM |
450 |
480 |
15 |
|
S550GD Z/ZM/AZ/AM |
550 |
550 |
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