Quality Assurance for Reliable Steel Supply
At KENEN STEEL, quality assurance is not just a promise-it is a systematic, non-negotiable process. We ensure that every steel product delivered strictly complies with customer specifications, international standards, and your specific project requirements.
We supply a comprehensive, fully-certified range of steel products for construction, infrastructure, manufacturing, and heavy industrial applications:
Flat Products: Hot Rolled, Cold Rolled, Coated Steel (GI, GL), and Prepainted/Color Coated Steel (PPGI, PPGL).
Long & Structural Products: Structural Steel Sections (H-Beams, I-Beams, Channels, Angles), and Reinforcing Steel (Rebar).
Tubular Products: Welded and Seamless Steel Pipes & Tubes (ERW, LSAW, SSAW).
Scaffolding Accessories: High-durability components and systems for critical construction safety.
Quality Control in Our Export Process
Requirement & Specification Confirmation
Before order confirmation, our engineering team cross-checks all key parameters to eliminate any technical ambiguity:
Steel Grade & Standards: Matching exact equivalents across different global standards (e.g., ASTM, EN, JIS, GB).
Dimensions & Tolerances: Precise verification of thickness, width, length, and outer/inner diameters (OD/ID) based on standard tolerance limits.
Application-Specific Requirements: Validating surface finish, coating mass (g/m2), and specific mechanical properties needed for your application.
Technical & Product Review
We perform a meticulous pre-production review of feasibility and mill credentials:
Mill Audit: Sourcing only from Tier-1 partner mills with certified, active quality management systems (ISO 9001:2015, CE, or API where applicable).
Raw Material Traceability: Ensuring all raw materials are traceable back to the ladle/heat number. We never mix materials.
Inspection & Testing Coordination
Depending on the product type and contract terms, we coordinate standard or customized inspection items:
Dimensional Verification: High-precision measurement of tolerances using calibrated micrometers, calipers, and ultrasonic thickness gauges.
Mechanical & Chemical Testing: Verification of yield strength, tensile strength, elongation, and chemical ladle analysis.
Surface & Coating Check: Non-destructive testing (NDT/UT) for pipes, and coating thickness gauge testing for galvanized/color-coated products.
Shipment Preparation & Sea-worthy Packaging
Steel is highly prone to rust and physical damage during long-term maritime transit. We enforce strict packaging and loading protocols:
Standard Sea-worthy Packaging: Utilizing anti-rust vapor corrosion inhibitor paper (VCI), heavy-duty plastic wrapping, steel strapping, and metal protective rings for coils.
Moisture & Rust Prevention: Placing silica desiccants inside containers and using professional wooden dunnage/chocking to prevent transit movement.
Container Loading Supervision (CLS): Supervising, photographing, and recording the entire loading process to guarantee secure lashing.
Product Inspection and Quality Verification
We adhere to standard testing protocols to guarantee that what we ship matches what you ordered.
|
Inspection Category |
Detailed Parameters & Test Methods |
|
Dimension Inspection |
Thickness, Width, Length, Outer Diameter (OD), Wall Thickness (WT), Weight (Theoretical vs. Actual), and Diagonal Tolerance. |
|
Chemical Composition |
Quantitative analysis of key alloying elements: Carbon (C), Silicon (Si), Manganese (Mn), Phosphorus (P), Sulfur (S), and micro-alloys (Nb, V, Ti). |
|
Mechanical Properties |
Tensile Strength ($R_m$), Yield Strength ($R_{eH}$ or $R_{p0.2}$), Elongation ($A_{50mm}$), and Charpy V-Notch Impact Testing (for structural low-temperature applications). |
|
Surface & Coating Quality |
Surface defect inspection (scratches, pits, scale), Zinc/Al-Zinc coating mass ($g/m^2$), paint film thickness ($\mu m$), and T-bend / MEK rub resistance (for PPGI). |
Documentation & Third-Party Inspection
Quality Documentation Support
We provide a complete, transparent documentation package to facilitate smooth customs clearance and local compliance:
Mill Test Certificate (MTC):
Issued in accordance with EN 10204 3.1 (or 3.2 if required), detailing chemical heat analysis and mechanical test results.
Third-Party Test Reports:
Fully compliant with SGS, BV, or TUV testing.
Commercial Documents:
Commercial Invoice, Packing List (with detailed weight and bundle info), Bill of Lading (B/L), and Certificate of Origin (Form A, Form E, CO, etc., to minimize import tariffs).
Independent Third-Party Inspection (TPI)
For customers requiring independent verification, we fully support and coordinate with international inspection agencies such as SGS, Bureau Veritas (BV), Intertek, or Cotecna:
Random sampling and quantity verification.
Visual and dimensional checking.
Witnessing of laboratory testing.
Container sealing and loading supervision.
FAQ