GI COIL & SHEET：
CLASSIFICATION
1.Hot- Dipped Galvanized Sheet The thin steel plate is immersed in the molten zinc tank, so that a layer of zinc thin steel plate adheres to the surface. At present, the continuous galvanizing process is mainly used for production, that is, the rolled steel sheet is continuously immersed in the molten zinc plating tank to make the galvanized steel sheet
2. Alloyed Galvanized Sheet This kind of steel plate is also manufactured by hot dipping method, but after exiting the tank, it is heated to about 500 ℃ immediately to form an alloy film of zinc and iron. This galvanized sheet has good coating adhesion and weldability.
3. Electro-galvanized steel sheet. The galvanized steel sheet produced by the electroplating method has good workability. But the coating is thinner, and the corrosion resistance is not as good as the hot-dip galvanized sheet; 4. Single-sided and double-sided poorly galvanized steel sheet. Single-sided galvanized steel sheet is a product that is galvanized on one side only. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of uncoated zinc on one side, there is another galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet; 5. Alloy, composite galvanized steel sheet It is a steel plate made of zinc and other metals such as lead and zinc alloys and even composite plating. This kind of steel plate not only has superior anti-rust performance, but also has good coating performance.
FINISH
1. SURFACE QUALITY:
• FB/B - RELATIVELY HIGH-GRADE
• FC/C- HIGH-GRADE SURFACE
•FD – ULTRA HIGH-GRADE SURFACE
2. COATING FINISH
• N/R – NORMAL SPANGLE
• F/D – ZERO SPANGLE
• S – SKIN PASS
3. SURFACE TREATMENT
• O – OILED
• X – UNOILED
• C – MILL PASSIVATION
• C5/ NC – CHROMATE-FREE TREATMENT
• CR5 - PURE CHROMIUM PASSIVATION FREE
• A/S – SEALED
• AF5 – CHROMATE-FREE SEALED
• U/M - UNTREATED
4. EDGE
• EC – TRIMMING
• EM – NOT TRIMMING
STEEL PACKAGE
WITH STEEL STRAPS AND SIDE GUARD PLATE
MOISTURE-PROOF PAPER PACKAGE
WORKSHOP
PROCESSING AS CLIENT'S REQUEST
DELIVERY
CONTAINER LOADING