Hot-Dip Galvanized Steel Coil / Sheet (GI) Z40–Z275

Hot-dip GI coil and sheet for roofing, cladding, and fabrication — confirm grade, Z coating, thickness, width, and packing before RFQ.

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PRODUCT ORDER SPECIFICATION CONFIRM FOR QUOTATION

KEY SPECIFICATIONS

Substrate: Carbon Steel
Standard: Governing product standard and edition; confirm on quotation/PO.
Metallic coating: Coating type, designation or mass, units, and side distribution; confirm on PO.
Thickness: Nominal thickness and tolerance; confirm on quotation/PO.
Width: Nominal width and tolerance; confirm on quotation/PO.
Surface finish: Required finish, treatment, and acceptance criteria; confirm on quotation/PO.

Classification technique

Matériau / substrat: Carbon Steel
Forme: Coil Sheet
Surface: Hot-dip Galvanized
Application: Oil & Gas

Product specifications

Send grade, standard, dimensions, and delivery requirements for a matched product quotation.

Product specifications
Property	Value
Product identity
Product	Hot-Dip Galvanized Steel Coil / Sheet (GI) Z40–Z275
Material	Carbon Steel
Product form	Coil
Standards and classification
Standard	Governing product standard and edition; confirm on quotation/PO.
Dimensions
Thickness	Nominal thickness and tolerance; confirm on quotation/PO.
Width	Nominal width and tolerance; confirm on quotation/PO.
Surface and coating
Substrate	Carbon Steel
Metallic coating	Coating type, designation or mass, units, and side distribution; confirm on PO.
Surface finish	Required finish, treatment, and acceptance criteria; confirm on quotation/PO.

Overview

Hot-dip galvanized (GI) coil and sheet for roofing, cladding, ducting, and fabrication. Specify coating mass, grade, and surface on the RFQ. For narrow widths, use the strip family and state slit width, tolerance, edge condition, and coil limits. For color-coated demand, use the PPGI / PPGL family and include the paint system and RAL color. Compare the GL family and GI vs GL buyer guide before finalizing the purchase order. Les acheteurs évaluent Hot-Dip Galvanized Steel Coil / Sheet (GI) Z40–Z275 selon SGCC, DX51D+Z, DX52D+Z, S250GD+Z et ASTM A653, EN 10346, JIS G3302, GB/T 2518, puis confirment les dimensions de Coil / Sheet, tolérances, surface ou état de livraison et transformations. Les applications enregistrées comprennent Roofing and wall-cladding roll forming, HVAC ducting and cable-tray fabrication, General sheet-metal fabrication and formed components.

Product scope

La nuance et la norme suivent le projet; aucune équivalence entre normes n’est présumée.
Dimensions de Coil / Sheet, surface, transformation, inspection et documents sont confirmés par la RFQ.

Applications

Roofing and wall-cladding roll forming
HVAC ducting and cable-tray fabrication
General sheet-metal fabrication and formed components

Surface options

Regular / minimized / zero spangle
Skin-pass optional
Chromate or Cr-free passivation
Oiled or dry

Processing & form

Cut-to-length sheet
Slit strip (see strip family)
Mother coil for roll forming
Export seaworthy packing

Product selection tools

Compare color, surface, profile, and dimensions before requesting a quote.

RFQ documents & delivery

Packing, MTC, and inspection path — include them in your RFQ for an actionable quote.

Packing & delivery

Export packing options

Inner wrap: waterproof paper + plastic film against white rust
Outer protection: steel sheet or hardboard; edge protectors on both sides
Strapping: radial + circumferential steel straps; wooden or steel pallet as ordered
Orientation: eye-to-sky or eye-to-wall only after coil weight and handling method are agreed
Marking: heat/batch, size, coating, and destination marks for container loading
Documents: EN 10204 3.1 MTC, packing list; SGS/BV when the PO requires it
Ports: confirm load port and destination port on RFQ (common China export corridors)

Quality assurance

Quality documents

Agree the PO or ITP checkpoints before production. Applicable GI checks cover base thickness, width, zinc coating mass, surface and spangle condition, plus adhesion or bend performance when the forming route requires it. Document type, sampling and acceptance limits remain order-specific until approved records are on file.

Export packing & loading evidence

Representative export packing and loading evidence. Final packing follows the approved order.

Supply confidence

Stock, inspection, and product uses

Review warehousing, inspection, and product uses, then add quantity, port, and inspection needs to your RFQ.

Steel bundles staged by lot in the warehouse

Warehouse & staged stock

Strapped coils and plates staged by lot so grade, thickness, and destination port can be matched quickly for shipment.

Factory capability Ask stock & lead time

Buyer verifying thickness and specs on site

Buyer visits & inspection

Overseas buyers and third-party inspectors are welcome to verify specs, heat numbers, and packing. SGS/BV support available.

Quality & standards Arrange inspection

Typical applications for this product

Typical uses for this product: Roofing and wall-cladding roll forming; HVAC ducting and cable-tray fabrication; General sheet-metal fabrication and formed components. Share your end use, environment, and packing needs in the RFQ.

Quote for this use case

FAQ

What does Z275 mean on a GI order?

Z275 is a coating-mass designation used with the governing product standard. State the standard and designation together because reporting basis and tolerances must follow that document and the accepted order.

When should I buy GI strip instead of full-width coil?

Use the strip family when the finished slit width, width tolerance, edge condition or narrow-coil packing is a purchasing requirement. Use this page for full-width coil or cut sheet.

How should I choose spangle and surface treatment?

Match regular, minimized or zero spangle and passivated, Cr-free, oiled or dry treatment to appearance, forming and storage needs. Put the selected combination on the RFQ and PO.

How is white-rust risk controlled?

Agree dry handling, passivation or oil where applicable, moisture-barrier wrapping, edge protection, storage conditions and destination climate before packing release. No packing duration is guaranteed without an approved order basis.

What are the MOQ and lead time for GI coil?

Confirm with sales against grade, coating mass, dimensions, coil weight, quantity and the current production schedule. This page does not publish an unconditional MOQ or lead-time promise.

Quelles informations faut-il fournir pour chiffrer Hot-Dip Galvanized Steel Coil / Sheet (GI) Z40–Z275 ?

Indiquez nuance ou norme, dimensions, quantité, port de destination et application. Ajoutez les exigences de surface, transformation, emballage ou inspection si elles influencent la commande.

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Talk with our team about Hot-Dip Galvanized Steel Coil / Sheet (GI) Z40–Z275 availability, dimensions, and shipment timing.

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RFQ form: itemized quote, MTC and packing requirements
WhatsApp: quick check of specifications, quantity and port