G550 Galvanized Sheet

The G550 Galvanized Sheet is a high‑strength steel sheet coated with zinc, designed for structural applications that demand a minimum yield strength of 560 MPa and a minimum tensile strength of 650 MPa. The sheet carries a zinc layer of 275 g/m², giving it strong corrosion resistance, and is supplied in thicknesses from 0.12 mm to 4.0 mm with widths ranging between 20 mm and 1500 mm; standard widths include 914 mm, 1000 mm, 1219 mm, 1250 mm and 1500 mm. It conforms to a range of international standards such as ASTM, DIN, JIS, BS, GB/T and EN, and can be finished with regular, minimum, zero or big spangle surface structures.

In the broader market, galvanized sheets of this class are produced from mild steel that receives a zinc coating to provide cathodic protection; if the coating is breached, the zinc corrodes preferentially to the steel. Typical industry practice for G550‑type sheets uses a zinc thickness around 300 g/m², which is considered standard for long‑term outdoor exposure. Other common attributes include skin‑pass treatment for improved flatness and optional chromated or non‑chromated surface treatments to suit different environmental requirements.

The sheets are widely used in building structures such as Z‑shaped and C‑shaped members, floor bearing plates, and roof conversion projects in villas, townhouses and tourist‑destination buildings. Buyers such as construction firms, steel fabricators and project developers usually request waterproof paper, plastic film or iron‑packed bundles for safe transport. Shandong Jintuo Metal Materials can customise dimensions, surface finish and packaging on demand, so importers should confirm the exact specifications and trade terms before placing an order.

Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, a recognised hub for steel tube production in China. The company describes itself as a large enterprise that trades carbon steel, stainless steel, galvanized colour‑coated products, as well as copper and aluminium, offering a flexible business approach to meet customer needs.

The supplier’s profile indicates an imported‑goods tier and a harbour‑level trust rating, with a response rate currently recorded as 0.00. While the listing does not disclose specific certifications or production capacity, it states that professional designers are available to create customised sheet styles and that the firm aims to balance owner interests with project quality.