What zinc coating mass (Z40 to Z275 / G30 to G90) and spangle finishes do you produce?

We produce hot-dip galvanized steel coils across all international zinc coating classes: commercial Z40-Z80 (40-80 g/m2), standard building grade Z120-Z180 (120-180 g/m2), and heavy-duty coastal/marine grade Z275 (275 g/m2) and ASTM A653 G90 (0.90 oz/ft2). Surface finishes include zero spangle (skin-passed for automotive and appliance painting), minimized spangle, and regular spangle with trivalent chromate passivation or anti-fingerprint resin.

What steel grades, thickness ranges, and slit coil capabilities are available?

We supply commercial quality CQ (DX51D+Z, SGCC, CS Type B), structural quality SQ (S250GD to S350GD, SS Grade 33 to 50), and deep drawing quality DQ (DX52D, DX53D). Thickness ranges from 0.12mm to 4.0mm with slit width from 20mm to 1500mm (width tolerance +/- 0.15mm) and custom coil weights from 3.0 MT to 8.0 MT.

Do you support third-party pre-shipment inspections (SGS/BV) and Letter of Credit (L/C) payments?

Yes. Sino East regularly accommodates independent pre-shipment inspections by SGS, Bureau Veritas (BV), Cotecna, or Intertek at the port or mill-covering zinc coating thickness, tensile testing, surface defect inspection, and container loading supervision. For international trade finance, we accept Irrevocable Letters of Credit (L/C at sight or confirmed usance L/C) issued by Tier-1 commercial banks, fully supported with EN 10204 3.1 MTC documentation.

How are galvanized coils packaged to prevent white rust during ocean transit?

Every coil is fully wrapped in VCI anti-rust waterproof paper, inner and outer galvanized steel protective rings, plastic side discs, and secured with at least 3 radial and 3 circumferential high-tensile steel straps onto treated wooden pallets with desiccant packs in container loading.

Galvanized Steel Coils

Name: Galvanized Steel Coils — Sino East Steel
Brand: Sino East Steel
SKU: SES-BFB2C066
Availability: InStock

Hot-dip galvanized steel coils to ASTM A653, EN 10346 with zinc coating from Z80 to Z275.

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