Zinc-Coated Galvanized Steel Strip Roll for Build | RFQ Sourcing Details

This zinc-coated galvanized steel strip is offered for building, construction, and industrial procurement. The stated grade options are SGCC, S350GD+Z, S550GD+Z, DX51D, DX52D, and DX53D. Available dimensions are listed as 0.16–1.2 mm thickness and 600–1,250 mm width, with a stated tolerance of ±0.02 mm.

Zinc coating options range from 60 to 275 g/m². Both hot-rolled and cold-rolled techniques are listed. Surface-treatment choices include oiling, passivation, chromium-free passivation, combined passivation and oiling, and fingerprint-resistant treatments.

Spangle selections include regular, minimal, zero, and big spangle. Coils are specified with a 508–610 mm inside diameter and a weight of 3–8 tons.

The source identifies potential uses in building materials, roofing steel sheet, automotive manufacturing, ship interior decoration, household appliances, packaging and steel fixation, color-coated steel production, wood, and stone-related work.

Suitability for any specific fabrication process or end use should be established against the selected grade, mechanical properties, coating mass, surface finish, and applicable project standard. Listed mechanical properties vary by grade. DX51D+Z has a stated tensile-strength range of 270–500 MPa.

DX52D+Z is listed at 140–300 MPa yield strength and 270–420 MPa tensile strength;DX53D+Z at 140–260 MPa yield strength and 270–380 MPa tensile strength.

Structural grades are listed as S280GD+Z at ≥280 MPa yield and ≥360 MPa tensile strength, S350GD+Z at ≥350 MPa yield and ≥420 MPa tensile strength, and S550GD+Z at ≥550 MPa yield and ≥560 MPa tensile strength.

Seaworthy packaging is stated, including kraft paper, a water-resistant plastic film, an outer galvanized-steel sheet secured with steel strips, and an inner coil sleeve. Customized packaging is also listed.

The stated minimum order is 25 tons in one 20-foot full container load, with a listed delivery period of 15–20 days.

Before ordering, buyers should confirm the exact grade designation, governing standard, dimensional tolerance, zinc-coating measurement basis, surface treatment, spangle, edge condition, coil ID, coil weight, and required mechanical properties.

Buyers should also request the applicable certification and inspection documents for the specific production lot, clarify whether third-party testing is required, and approve packaging and loading requirements.

The listing mentions several certifications and an 8–15-year warranty, but their precise scope, validity, and applicability to the ordered grade should be verified in the purchase documentation.