Dimensional inspection
Thickness, width, length, outside diameter and wall thickness measured with calipers, micrometers and tape, and checked against the tolerance of the ordered standard.
1
Mill laboratory tests
Chemical composition and mechanical properties tested by the producing mill and reported on the Mill Test Certificate.
2
Our own inspection
Dimensions, thickness, coating, surface, weight and quantity checked by our inspectors at intake and before shipment.
3
Third-party inspection
SGS, BV, TUV or your appointed agency can inspect and test the goods on site before loading.
Our Inspection
Carried out by our own team in our warehouses and processing centres.
Thickness & coating gauge
Plate and coil thickness measured with thickness gauges; zinc, Galvalume and ZAM coating thickness checked with a coating gauge.
Surface & flatness check
Visual inspection for scale, scratches, pits, rust and edge damage, plus flatness and straightness checks after processing.
Weight & quantity check
Pieces counted, bundles and coils weighed, and labels checked against the packing list before loading.
Mill-Tested Properties
Tested in the producing mill's laboratory and reported, heat by heat, on the Mill Test Certificate that ships with your order.
Chemical composition
Carbon, silicon, manganese, phosphorus, sulphur and alloying elements are analysed by the mill for each heat and reported on the certificate.
Tensile & yield strength
Yield strength, tensile strength and elongation are tested on samples from each heat or batch to confirm the steel meets its grade.
Impact test
Charpy impact tests at the temperature the grade requires (for example 0 °C, −20 °C or −40 °C) show how tough the steel is.
Ultrasonic & non-destructive testing
Plates, pipes and welds can be checked ultrasonically for internal defects, by the mill or by a third-party inspector when the order requires it.
Third-Party Inspection
Independent Inspection Welcome
We work with SGS, BV, TUV and any inspection agency you appoint. Inspectors can witness sampling, check dimensions and surface, review certificates and supervise loading before the goods leave Shanghai.
Documents With Every Batch
- Mill Test Certificate (MTC, EN 10204 type as agreed)
- Factory inspection sheet
- Dimensional tolerance sheet
- Surface quality report
- Packing list and commercial invoice
- Certificate of origin and bill of lading
Photos: digital caliper — “2020 Suwmiarka cyfrowa”, Wikimedia Commons, CC BY-SA 4.0 · universal testing machine — Oregon Department of Transportation, CC BY 2.0.