G550 Galvanized Coil

The G550 galvanized coil supplied by Shandong Jintuo Metal Materials Co., Ltd is a hot‑rolled steel sheet that has been hot‑dip coated with zinc to achieve a yield strength of 235 MPa. Thickness is offered from 0.1 mm up to 5.0 mm and the coil tolerance is specified as +1 % of the nominal dimension. The material conforms to the SPCC, SPCD and SPCE grades as well as the DC01‑DC03 and ST12/Q195 classifications listed in the AISI, ASTM, BS, DIN, GB and JIS standards. The supplier indicates an ISO 9001 quality management certificate for the production line.

Galvanisation is performed by continuously passing the steel strip through a molten zinc bath, creating a uniform zinc‑iron alloy layer that improves paint adhesion and weldability. A variant of the process includes a post‑dip heating step at approximately 500 °C to form an alloyed coating with enhanced corrosion resistance. Typical industry practice for G550 coils includes a zinc coating mass of 55 - 150 g/m², which provides a nominal corrosion protection of around 30 years in moderate environments. The coil can be supplied with surface finishes such as anti‑fingerprint, skin‑pass, oiled, dry or chromated, depending on downstream processing requirements.

Common applications are automotive body panels, roofing, wall cladding and general fabrication where good paintability and weldability are required. Buyers often request additional services such as cutting, punching, decoiling or bending, all of which the supplier lists as available. Delivery is made from the ports of Tianjin or Qingdao within 7 - 15 days, and the product is packed in bundles or bulk according to the customer’s specification.

Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, recognised as a steel‑tube hub in China. The supplier is listed as an imported tier with a harbour trust level, and the platform records a zero‑percent response rate, indicating no automatic replies have been logged. Their catalogue focuses on carbon steel, stainless steel, galvanised colour‑coated products, as well as copper and aluminium alloys.

The company adopts a flexible business approach and a management mechanism designed to serve customers while protecting project interests. It offers a range of value‑added services such as bending, welding and cutting, and it can tailor packaging to bulk or bundle formats based on buyer requirements. No additional historical or financial claims are provided in the listing.