DX51D+Z Hot Dip Galvanized Steel Coil

Excerpt:

For ventilation components, general bent parts and equipment housings where guaranteed structural yield strength is not specified. State the grade and coating designation together, for example DX51D+Z275.

QIDA METAL · PRODUCT PROCUREMENT GUIDE

Procurement Item	Details
Applicable Standard	EN 10346，DX51D+Z
Product Category	Steel Plates & Coils / Coil
Dimensions & Quantity	The sizes below are enquiry references. Available combinations, quantities and delivery times are subject to written quotation.
Documentation	Specify heat/batch inspection documents, standard edition, traceability and project certification in your enquiry. Documents are subject to confirmation of actual availability.

01 / Product Features & Selection

Base-steel grade and zinc coating are specified separately to suit the environment and forming process.
Review master-coil, slitting and cut-to-length requirements together for consistent processing and edge protection.
Spangle appearance does not establish coating mass or corrosion service life.

02 / Specifications, Dimensions & Ordering Options

These dimensions help define your purchase requirement; they do not imply that every combination is in stock. Specify tolerances, quantity, delivery condition and destination port. Submit drawings for special sizes.

Parameter	Specification / Enquiry Range	Points to Confirm
Thickness / mm	0.30, 0.40, 0.50, 0.60, 0.80, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0	Specify the nominal thickness basis and coating allowance; confirm available combinations by quotation.
Width / mm	600, 900, 1000, 1219, 1250, 1500, 1800, 2000 or slit widths	Confirm thickness-width combinations and minimum slit width.
Coil Inside Diameter / mm	508 or 610, subject to production and the buyer's uncoiler.	Specify eye orientation as well as outside diameter.
Individual Coil Weight	Agree according to uncoiler capacity, transport and handling conditions.	State maximum permitted coil weight and outside diameter.
Edges	Mill, trimmed or slit edges	Confirm burr direction, height and camber.
Supply Form	Master coil, recoiled, slit or cut-to-length requirements may be submitted.	Distinguish parent-coil testing from post-processing dimensional acceptance.
Dimensional Tolerances	EN 10143	Request tighter thickness / camber tolerances at order placement.
Surface & Treatment	Spangle, skin passing, passivation / oiling as ordered	Confirm compatibility with painting, bonding and forming.

Coating Designation (+Z)	Minimum Total Coating Mass, Both Sides, Triple-Spot Test / g/m²	Procurement Notes
Z140	140	Total for both sides, not 140 per side.
Z275	275	Total for both sides; 275 does not mean a one-side thickness of 275 µm.
Z350	350	Assess forming and welding separately for heavier coatings.

03 / Standard Chemical Composition

EN 10346，DX51D+Z. Values are mass percentages (%). Maximum limits are shown by ≤, minimum limits by ≥; ranges are specification limits and Fe is the balance. These are not measured results for a current delivery heat.

Element / Indicator	Requirement or Range
C	≤0.18
Si	≤0.50
Mn	≤1.20
P	≤0.12
S	≤0.045
Ti	≤0.30
Fe	Balance (base steel)

Heat analysis, mass %, for the steel substrate, not the zinc coating.

04 / Mechanical Properties & Application Limits

Thickness / Material Condition	Yield Strength Re / Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Elongation After Fracture A (%)
t>0.7 mm, specified specimen	Not specified by the standard	270–500	A80 ≥22

Units: MPa / %. For 0.5

05 / Inspection, Processing & Quality Checks

Check DX51D+Z grade, coating designation, treatment and dimensional tolerances.
Verify coating mass and adhesion by the specified test methods. One magnetic thickness reading cannot replace full acceptance testing.
Inspect bare spots, zinc dross, edge damage, white rust and coil-end dents; avoid sealed wet storage.
Include corrosion protection of exposed edges after welding / cutting in the processing plan.

06 / Export Packaging for This Product

Stage	Recommended Arrangement	Key Considerations
Coil Protection	Moisture barrier, inner / outer edge rings, end protection and steel straps as appropriate to the finish.	Prevent edge damage, telescoping and coil-end impact.
Securing Method	Horizontal cradles or vertical pallets to suit the customer's handling arrangement.	Prevent rolling; specify eye orientation and individual coil weight.
Moisture Control & Unpacking	Pack dry material; inspect for condensation on arrival before unpacking.	Sealed, damp storage can cause white rust on galvanized steel.

Illustration of steel export packaging, not a record of an actual shipment. Packaging, loading method and package weight are agreed per order.

Before shipment, cross-check product, grade, heat number, size, piece count, net weight and gross weight against the packing list. Match labels to inspection documents. For solid-wood pallets, dunnage or crates, check destination-country rules; wood subject to ISPM 15 must be treated and marked by an approved provider. Load dry cargo and arrange supports, blocking and securing according to weight and centre of gravity.

07 / How Qida Supports Your Procurement

Procurement Stage	Qida Coordination	Information for the Buyer
Requirement Review	Review application, standards, material condition, drawings and acceptance items.	A checkable specification list helps reduce language and unit-conversion errors.
Order Confirmation	Confirm material, processing, inspection, packaging, delivery milestones and cost responsibilities item by item.	A clear written quotation and mutually agreed purchase requirements.
Delivery Coordination	Coordinate production / sourcing progress, labels, packing lists and shipping documents.	Check dimensions, quantities and heat/batch correspondence at agreed milestones.
After-Sales Follow-Up	Review issues using order number, heat number, arrival photographs and test records.	A defined issue description and documented resolution communications.

Qida focuses on clear specifications, material requirement checks and delivery coordination. Include cutting, cut-to-length, surface treatment, third-party inspection and certificate requirements in your enquiry so that the achievable scope can be agreed before order placement.

08 / Request for Quotation

For an accurate quotation, please provide:
DX51D+Z and coating designation + thickness / width + finish / spangle / passivation or oiling + coil ID / weight + slit width + tonnage + destination port. Include samples, drawings and inspection plans where available.

Define Specifications, Quality and Delivery in One Enquiry

Send your purchasing list to Shandong Qida Metal Technology Co., Ltd. We will review standards, dimensions and destination requirements with you.

Send an Enquiry · qidamt@163.com

139-6951-8618

Technical Sources & Ordering Notes

This selection and enquiry guide is compiled from the primary public sources below. Values are not an inspection certificate for a delivery batch and do not imply a supply or authorization relationship with the source publishers. The agreed order governs standard edition, product form, thickness range, specimen and delivery condition. Similar grades are not automatically equivalent. Confirm project certification and inspection documents before ordering.

Support Based on Clear Records

For a product or delivery concern, please send your order number, heat or batch number, packing label, arrival photographs and relevant inspection records to qidamt@163.com.

Technical review: We compare the reported issue with the agreed specification, drawings and acceptance requirements.
Delivery follow-up: We review packing lists, shipment documents, packaging condition and quantity records with you.
Coordinated resolution: We discuss practical next steps and maintain a written record of the agreed response.
Installation and maintenance: For railing projects, share site details and drawings so that applicable fabrication and maintenance questions can be reviewed. On-site service, warranty scope and response arrangements are subject to the agreed contract.

Steel Products for Your Project

Qida coordinates enquiries for steel plates and coils, pipes and tubes, structural sections, bars and fabricated railings. Each product is specified by its applicable standard, grade, dimensions and delivery condition.

Material clarity: Confirm chemistry, thickness-dependent mechanical properties, heat identification and inspection documents before ordering.
Processing coordination: Submit requirements for cutting, cut-to-length, drilling, forming, welding or surface treatment. The manufacturing route and achievable tolerances are reviewed against your drawings.
Railing fabrication: Our established railing business covers cutting, forming, welding and surface treatment, with drawing-based customization for different project layouts.
Corrosion protection: Specify galvanizing, powder coating, stainless finish and post-weld cleaning according to the environment and agreed acceptance criteria.
Export preparation: Coordinate bundle identification, finish protection, packing lists, package weights and loading arrangements for the destination.
Project-specific quality: Additional tests, third-party inspection and certification must be defined and confirmed before order placement. Structural loads and installation compliance follow the project design and destination requirements.

Send your material schedule and drawings to qidamt@163.com for a specification review and quotation.

DX51D+Z Hot Dip Galvanized Steel Coil

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