Q：What quality inspection items are included for Q355 plate?
A：Our standard inspection includes: chemical composition analysis (spectrometer), mechanical property test (tensile test, impact test, bending test), dimensional tolerance inspection (thickness, width, length), surface quality inspection, and ultrasonic flaw detection (according to customer requirements).
Q：What is the ultrasonic inspection standard for Q355 plate?
A：We can provide ultrasonic inspection according to GB/T 6402-2018, with grades of I, II, III. For important structural parts, we recommend grade I or II to ensure no internal defects.
Q：How is Q355 plate packaged for sea transportation?
A：Packaging standard for sea transportation: (1) Each bundle is 3-5 tons, fixed with steel straps; (2) The bottom of the bundle is padded with wooden pallets to prevent moisture and deformation; (3) The surface is coated with anti-rust oil and wrapped with waterproof plastic film; (4) Marked with product information (grade, thickness, size, heat number, standard) and shipping marks.
Q：What are the storage requirements for Q355 plate?
A：Storage requirements: (1) Store in a dry, ventilated warehouse to avoid rain and snow; (2) Place on wooden pallets, 10-20cm above the ground, to prevent ground moisture; (3) Separate different grades and specifications to avoid confusion; (4) The storage period of anti-rust oil coating is 3-6 months, and it should be used as soon as possible.
Q：What are the common specifications of Q355 plate for export?
A：Common export specifications: (1) Thickness: 3mm-150mm; (2) Width: 1000mm, 1250mm, 1500mm, 2000mm; (3) Length: 2000mm, 3000mm, 6000mm, 12000mm; (4) Customized specifications can be provided according to customer requirements, and cut to the required size before delivery.