I. Over 10,000 Tons in Inventory to Meet All Procurement Needs
To date, Zhongtang Company’s total inventory of galvanized steel coils has exceeded 10,000 tons. Our product range includes cold-rolled steel substrates with hot-dip galvanizing, as well as various types such as zinc-free, fine zinc bloom, zero zinc bloom, fingerprint-resistant, and deep-drawing grades, capable of meeting the diverse needs of industries including construction, home appliances, automotive, and machinery manufacturing.
Galvanized Steel Coil Product Specifications
| 产品类型 Product Type | 厚度范围 Thickness Range | 宽度范围 Width Range | 镀层重量 Coating Weight |
|---|---|---|---|
| 普通热镀锌卷 Regular Hot-Dip Galvanized Coil | 0.3mm – 3.0mm | 900mm – 1250mm | Z60-Z275 |
| 无锌花镀锌卷 Zero Spangle Galvanized Coil | 0.4mm – 2.5mm | 1000mm – 1250mm | Z80-Z200 |
| 耐指纹镀锌卷 Anti-Fingerprint Galvanized Coil | 0.5mm – 2.0mm | 1000mm – 1219mm | Z100-Z180 |
| 深冲级镀锌卷 Deep Drawing Galvanized Coil | 0.5mm – 2.0mm | 1000mm – 1250mm | Z100-Z180 |
| 结构级镀锌卷 Structural Grade Galvanized Coil | 1.0mm – 4.0mm | 900mm – 1500mm | Z140-Z275 |
We adhere to the business philosophy of “Spot Inventory is King, Customer First.” Through large-scale centralized procurement and intelligent warehouse management, we ensure high inventory levels of mainstream market specifications year-round, minimizing customer wait times to the greatest extent possible.
II. Comprehensive Grade Selection for Diverse Applications
To meet the varied performance requirements of galvanized steel sheets across different industries, this inventory upgrade focuses on expanding our grade portfolio. Currently, our standard inventory includes:
1. Commercial Grade / Stamping Grade
DX51D+Z / SGCC: Suitable for general bending and forming, building envelopes, ventilation ducts, and light-gauge steel studs
DX52D+Z / SGCD1: Suitable for moderate forming requirements, such as home appliance casings and control cabinet bodies
DX53D+Z / SGCD2: Suitable for deep drawing, such as refrigerator side panels and washing machine inner drums
DX54D+Z / SGCD3: Suitable for extra-deep drawing, such as automotive interior components and complex drawn parts
2. Structural Grade
S250GD+Z / SGC340: Yield strength ≥250 MPa, suitable for light steel structures and purlins
S350GD+Z / SGC440: Yield strength ≥350 MPa, suitable for load-bearing structures, photovoltaic mounting brackets
S450GD+Z / SGC490: Yield strength ≥450 MPa, suitable for high-strength structural components
S550GD+Z / SGC570: Yield strength ≥550 MPa, suitable for high-strength construction and automotive structures
3. Deep-drawing high-strength steel
HX260LAD+Z / HX340LAD+Z: Combines high strength with good formability; suitable for automotive structural components





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