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07/07 17:01
< Welded Steel Pipe, size: DN50(2"*3.5mm), grade: Q215(ASTM A283 Gr.C), brand: YOUFA. Tianjin - Gangrui reduction by --30.02 tons
07/07 17:01
< Welded Steel Pipe, size: DN150(6"*4.5mm), grade: Q235(ASTM A36 Gr.D), brand: YOUFA. Tianjin - Gangrui reduction by --46.34 tons
07/07 17:00
< Cold Rolled Stainless Steel Sheet, size: 0.8*1219*2438, grade: 201 J1/2B(201 J1/2B), brand: HONGWANG. Shanghai - Caoan reduction by --15.55 tons
07/07 17:00
< Stainless Steel Channel, size: 10#(100*48*5.3), grade: 304(304), brand: QINGSHAN. Guangzhou - Yuefa reduction by --4.00 tons
07/07 16:59
< Cold-Rolled Ribbed Steel Rebar, size: Φ10, grade: CRB600H(ASTM A615 Grade 80), brand: QINGYAN. Shanghai - Caoan increased by 62.39 tons
07/07 16:59
< Bridge Steel Plate, size: 12-30, grade: Q345qC(ASTM A709 Grade 50), brand: ANGANG. Tianjin - Gangrui reduction by --15.09 tons

Answers

  • What are the main categories of steel sheet piling?
  • What customs clearance documents are generally required for steel exports to Southeast Asia?

    Standard required documents include:
    Commercial Invoice;
    Packing List;
    Bill of Lading;
    Mill Test Certificate;
    Certificate of Origin (CO or FORM E) – FORM E can enjoy tariff preferences between ASEAN and China; be sure to confirm this in advance.
    Sales Contract
    In addition, some countries may require an import license or Port of Destination Inspection (PSI). It is recommended to confirm the latest requirements with the customs clearance agent before shipment.
  • What is passing off Q235 as Q355? How to prevent material counterfeiting?

    It involves using low-strength Q235 steel to impersonate high-strength, high-value Q355 steel.

    The core properties differ: Q235 is carbon structural steel with a yield strength of approximately 235 MPa; while Q355 is low-alloy high-strength steel with a yield strength of at least 355 MPa and significantly higher tensile strength. Q355 has superior overall performance due to the addition of more alloying elements (such as manganese).

    Because of its superior performance, Q355 is more expensive. Unscrupulous merchants use Q235 to impersonate Q355 for illegal profit.

    Using Q235 instead of Q355 would significantly reduce the load-bearing capacity of the building's main structure, seriously jeopardizing the inherent safety of the project.

    Because they look almost identical, and are even more difficult to distinguish after painting, professional methods are needed to prevent counterfeiting.
    First, check the material certificate, verifying each item's grade, performance indicators, official seal, and batch number, and checking for any alterations.
    Seek third-party testing. Testing personnel will use a handheld spectrometer to test the content of key elements such as carbon and manganese on-site to ensure they meet standards.
    Entrust a qualified institution to conduct comprehensive testing on the steel's chemical composition and mechanical properties (yield strength, tensile strength), etc.
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