Reliable Steel Quality Management for International Projects
From raw material verification and chemical analysis to strict compliance testing and international shipping documentation, we ensure every steel plate perfectly aligns with your project specifications, international standards, and budget.
Global Recognition
We engineer and supply steel that meets the world's most stringent maritime and industrial standards. GNEE fully supports inspections and certifications from all leading international classification societies:
Maritime & Offshore Seals:
ABS, DNV, LR, BV, CCS, RINA, KR, NK
Quality Management:
Production lines operated under strict ISO 9001:2015 standards.
Standard Compliance:
Fully available with EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC) to guarantee absolute supply chain transparency.
Our Standard 5-Step Quality Control Process
Pre-Production Specification Alignment
Before a single plate is processed, our engineering team double-checks every technical parameter against your Purchase Order (PO):
- Exact steel grade & cross-border standard equivalencies (ASTM, EN, JIS, ISO, AS/NZS).
- Dimensional tolerances (Thickness, width, length, and flatness parameters).
- Specific heat treatment requirements (As-Rolled, Normalizing, Normalizing Rolling, TMCP, or Quenched & Tempered).
Precise Chemical Composition Analysis
We verify both ladle analysis and product analysis using advanced spectrometry to guarantee optimal performance. Testing elements include:
- Carbon (C) content and Carbon Equivalent (CEV / Pcm) values for flawless field weldability.
- Silicon (Si) and Manganese (Mn) balancing for structural strength.
- Phosphorus (P) and Sulfur (S) minimization to prevent hot shortness and brittle fracture.
- Alloy elements (Cr, Ni, Mo, V, Nb) tailored to specialized atmospheric or low-temperature grades.
Rigorous Mechanical Property Testing
Ensuring the steel performs flawlessly under extreme stress. Our certified testing laboratories conduct:
Yield & Tensile Strength Testing: To verify exact load-bearing capacities under structural tension.
Elongation & Ductility Tests: Crucial for forming, bending, and fabrication processes.
Charpy V-Notch Impact Testing: Executed at designated low temperatures (e.g., 0°C, -20°C, -40°C, -60°C) for shipbuilding, arctic, and offshore applications.
Through-Thickness Testing (Z-Direction): Available in Z15, Z25, and Z35 classes to prevent lamellar tearing in highly restrained heavy structural joints.
Advanced Surface & Dimensional Inspection
Precision ultrasonic thickness measurements across multiple matrix points on the plate.
Laser-guided length, width, and flatness verification to ensure zero deviation during site assembly.
100% visual surface inspection to completely eliminate laminations, cracks, scale inclusions, or deep pitting.
Non-Destructive Testing (NDT): Ultrasonic Testing (UT) readily executed to meet ASTM A435, ASTM A578 (Level A/B/C), or EN 10160 standards.
Third-Party Inspection (TPI) Coordination
We regularly host and collaborate with globally recognized inspection organizations: SGS | Bureau Veritas (BV) | TÜV | Moody | ABS | DNV
Our team coordinates the entire process, including visual and dimensional check verification, laboratory test witnessing, stamping, and full document auditing.
Quality Documentation
GNEE Steel provides a comprehensive, fully digitized document package with every international shipment to simplify your import logistics and ensure compliance:
Mill Test Certificate (MTC) strictly complying with EN 10204 3.1 or EN 10204 3.2.
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Complete Chemical & Mechanical Lab Reports linked directly to the plate's stamped heat numbers.
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Ultrasonic Testing (UT) Reports and non-destructive testing logs.
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Commercial Invoice & Detailed Packing List featuring exact heat number-to-plate correlations.
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Certificate of Origin (Form E, Form F, CO, or FTA-specific documentation) to help minimize your import tariffs.
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