Shandong Kungang Metal Technology
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Product reference photographs. Confirm grade, finish and supply specification with your enquiry.

Galvanized sheet & coil

Z275 galvanized steel coil

Galvanized coil enquiries with a Z275 coating designation. Z275 identifies a coating requirement; the base steel grade must also be specified.

Product form
Coil
Surface / finish
Zinc coated
Grade / standard
DX51D+Z, DX52D+Z or SGCC; specify the required grade
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Product details

Galvanized coil enquiries with a Z275 coating designation. Z275 identifies a coating requirement; the base steel grade must also be specified.

This specification is available for enquiry. Supply scope, dimensions and lead time must be confirmed with our team before ordering.

Coating designation

Specify the coating designation and applicable purchasing standard.

Surface treatment

Confirm the finish and treatment for forming or further coating.

End-use conditions

Share the service environment and intended fabrication process.

Typical application

Roofing & building components

Roofing profiles, building components and general forming.

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Product specifications

Product specifications for Z275 galvanized steel coil
Product formCoil
Grade / standardDX51D+Z, DX52D+Z or SGCC; specify the required grade
Thickness0.12–3.5 mm
Width600–1,500 mm
Coating processHot-dip galvanizing
Zinc coatingZ275 — 275 g/m² total, both sides
Spangle optionsZero, minimized, normal or large spangle
Surface treatmentSpecify required treatment and oiling with the enquiry
Coil configurationCoil weight and inner diameter to order
Dimensional tolerancesTo the agreed grade, standard and order specification
Order quantity & availabilityConfirmed for the selected specification in the quotation
Edge conditionMill edge or trimmed edge, confirmed with the order
Inspection documentRequest heat / coil identification and material test results
PackagingMoisture protection, steel strapping and agreed edge protection
Dispatch documentsPacking list and product identification matched to the order

Ranges vary with grade, finish and order specification. Confirm the required dimensions, coating and availability in your quotation.

DX51D+Z — chemical composition

ElementMaximum / range (% by mass)
C≤0.180
Mn≤1.20
P≤0.120
S≤0.045
Si≤0.50
Ti≤0.300

Heat analysis limits; the ordered standard edition and grade take precedence.

DX52D+Z — chemical composition

ElementMaximum / range (% by mass)
C≤0.120
Mn≤0.60
P≤0.100
S≤0.045
Si≤0.50
Ti≤0.300

Heat analysis limits; the ordered standard edition and grade take precedence.

DX51D+Z — mechanical properties

Thickness (mm)Tensile strength Rm (MPa)Elongation A80 min. (%)
0.20–0.35270–50015
>0.35–0.50270–50018
>0.50–0.70270–50020
>0.70–6.00270–50022

Transverse specimens. No minimum yield strength is specified for DX51D in this table. Confirm the test timing and ordered standard.

DX52D+Z — mechanical properties

Thickness (mm)Yield strength Re (MPa)Tensile strength Rm (MPa)Elongation A80 min. (%)
0.30–0.50140–300270–42022
>0.50–0.70140–300270–42024
>0.70–6.00140–300270–42026

Transverse specimens. Yield range applies to skin-passed surface qualities B/C. Mechanical-property time limits must be agreed.

Zinc coating designations

DesignationMinimum total mass, both sides (g/m²)Basis
Z100100Three-spot test
Z120120Three-spot test
Z140140Three-spot test
Z180180Three-spot test
Z200200Three-spot test
Z225225Three-spot test
Z275275Three-spot test

Coating mass is separate from base-steel grade; Z275 is not a strength grade. Do not treat ASTM G90 and EN Z275 as identical acceptance specifications.

Zinc spangle and surface treatment

PropertyAvailable specification
SpangleZero, minimized, normal or large spangle; specify appearance
FinishSkin-passed or as-coated surface
PassivationChromated or specified chromium-free treatment
OilingOiled or dry; confirm compatibility with subsequent processing
Further processingSlitting, cut-to-length, bending or punching to the agreed drawing

Treatment and appearance are order options; not every combination is available for every grade and coating mass.

Grade-specific technical data

Select a grade to view its composition, mechanical properties and applicable test conditions.

DX53D+Z

DX53D+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %Ti max. %
0.1200.600.1000.0450.500.300

DX53D+Z — mechanical properties

Thickness (mm)Yield Re (MPa)Tensile Rm (MPa)A80 min. (%)
0.30–0.50140–260270–38026
>0.50–0.70140–260270–38028
>0.70–6.00140–260270–38030

Transverse test direction. Reference limits apply to the indicated thickness range; agree test timing and the ordered standard edition.

DX54D+Z

DX54D+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %Ti max. %
0.1200.600.1000.0450.500.300

DX54D+Z — mechanical properties

Thickness (mm)Yield Re (MPa)Tensile Rm (MPa)A80 min. (%)
0.30–0.50120–220260–35032
>0.50–0.70120–220260–35034
>0.70–3.00120–220260–35036

Transverse test direction. Reference limits apply to the indicated thickness range; agree test timing and the ordered standard edition.

DX54D+Z — deep-drawing values

Thickness t (mm)r90 min.n90 min.
0.50–1.501.60.18
>1.50–<2.001.40.18
≥2.001.20.18

GI substrate, transverse test. The formability coefficients apply to the stated gauge range and coating, not all galvanized grades.

S220GD+Z

S220GD+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %
0.2001.700.1000.0450.60

Additional alloying elements, when agreed, must be declared in the inspection document.

S220GD+Z — mechanical properties

Thickness (mm)Yield Re min. (MPa)Tensile Rm min. (MPa)A80 min. (%)
0.25–0.3522030013
>0.35–0.5022030016
>0.50–0.7022030018
>0.70–6.0022030020

Longitudinal test direction. Confirm applicable test timing and ordered standard; coating mass is specified separately.

S250GD+Z

S250GD+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %
0.2001.700.1000.0450.60

Additional alloying elements, when agreed, must be declared in the inspection document.

S250GD+Z — mechanical properties

Thickness (mm)Yield Re min. (MPa)Tensile Rm min. (MPa)A80 min. (%)
0.25–0.3525033012
>0.35–0.5025033015
>0.50–0.7025033017
>0.70–6.0025033019

Longitudinal test direction. Confirm applicable test timing and ordered standard; coating mass is specified separately.

S280GD+Z

S280GD+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %
0.2001.700.1000.0450.60

Additional alloying elements, when agreed, must be declared in the inspection document.

S280GD+Z — mechanical properties

Thickness (mm)Yield Re min. (MPa)Tensile Rm min. (MPa)A80 min. (%)
0.25–0.3528036011
>0.35–0.5028036014
>0.50–0.7028036016
>0.70–6.0028036018

Longitudinal test direction. Confirm applicable test timing and ordered standard; coating mass is specified separately.

S320GD+Z

S320GD+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %
0.2001.700.1000.0450.60

Additional alloying elements, when agreed, must be declared in the inspection document.

S320GD+Z — mechanical properties

Thickness (mm)Yield Re min. (MPa)Tensile Rm min. (MPa)A80 min. (%)
0.25–0.3532039010
>0.35–0.5032039013
>0.50–0.7032039015
>0.70–6.0032039017

Longitudinal test direction. Confirm applicable test timing and ordered standard; coating mass is specified separately.

S350GD+Z

S350GD+Z — heat analysis

C max. %Mn max. %P max. %S max. %Si max. %
0.2001.700.1000.0450.60

Additional alloying elements, when agreed, must be declared in the inspection document.

S350GD+Z — mechanical properties

Thickness (mm)Yield Re min. (MPa)Tensile Rm min. (MPa)A80 min. (%)
0.30–0.5035042012
>0.50–0.7035042014
>0.70–6.0035042016

Longitudinal test direction. Confirm applicable test timing and ordered standard; coating mass is specified separately.

SGCC / JIS G 3302:2022

SGCC — chemical composition, JIS G 3302:2022

C max. %Mn max. %P max. %S max. %
0.150.800.050.05

Cast-analysis limits. SGCC is a JIS grade and must not be substituted automatically for DX51D.

SGCC — mechanical and bend-test reference

PropertyValueTest basis
Yield / proof stress205 MPa minimum referenceNot a default guaranteed tensile requirement
Tensile strength270 MPa minimum referenceAgree with purchaser when required
ElongationNot specified for ordinary SGCCDo not apply drawing-grade elongation
Bend angle180°For t <3.0 mm, JIS coating symbols Z06–Z27
Internal bend spacing1 × nominal thicknessSpecified bend test
Tensile specimenJIS No. 5Parallel to rolling direction

JIS G 3302:2022 summary in CSC 2025 catalogue, pp. 14–15. Parenthesized tensile values in the source are references to be agreed, not mandatory guarantees.

Surface & processing requirements

Include the downstream process in your enquiry so that the material, dimensions and surface can be reviewed together.

Slitting requirementsTarget strip width, edge condition and winding arrangement.
Forming / fabricationDescribe the downstream forming, pressing, profiling or fabrication operation.
Coating & treatmentConfirm the metallic coating and any post-treatment alongside the forming requirements.
Coil handlingConfirm lifting, uncoiling and storage constraints.

Production & processing

Define the material and the downstream process together. Cutting, slitting or finishing requirements should form part of the order specification.

Material review

Grade, dimensions and surface requirements are checked against the enquiry.

Processing scope

Agree cutting, slitting or forming requirements and the finished product tolerances.

Order inspection

Define acceptance criteria, identification and the requested documentation.

Rolling, processing and production facilities
Rolling, processing and production facilities
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Stock & warehouse

Hot rolled, galvanized and color coated material in warehouse settings. Ask our team to confirm current availability for your grade, dimensions and quantity.

Plate and sheet stock in covered storage
Plate and sheet stock in covered storage

Quality inspection & documentation

Agree the acceptance criteria and required documents before confirming your order.

  • Material identificationGrade, standard and requested test documentation.
  • Dimensions & surfaceThickness, width, finish and agreed tolerances.
  • Order documentsProduct identification, packing list and inspection scope.
Quality requirements
Coordinate measuring equipment
Coordinate measuring equipment
Ultrasonic thickness measurement
Ultrasonic thickness measurement
Hardness testing
Hardness testing
Tensile testing equipment
Tensile testing equipment
Chemical analysis laboratory
Chemical analysis laboratory
Metallographic examination
Metallographic examination

Packaging & shipment

Tell us how the material will be transported, unloaded and stored. Specify moisture protection, edge protection, package weight and destination with your enquiry.

Protective packing, loading and export shipment
Protective packing, loading and export shipment
ProtectionMoisture barrier, edge protection and surface protection as agreed.
Unit weightSpecify the coil or bundle weight for your unloading equipment.
IdentificationProduct, grade, dimensions and order reference on the agreed packing list.
DeliveryConfirm destination, transport method and delivery terms in the quotation.

Certificates & verification documents

Request the original document issued for the supplying company, product scope and order. Material test reports and conformity documents are checked against the named holder, issuing body and validity period.

Material test reportHeat or coil number, ordered grade, chemical composition and mechanical test results.
Inspection documentSpecify the required EN 10204 document type and inspection scope in the enquiry.
Conformity documentsRequest an original copy showing the issuing body, holder, number, applicable scope and validity.
Request applicable documents

Frequently asked questions

What should I include in my enquiry?

Send the product, grade or standard, dimensions, quantity, required finish and destination. Describe the end use if the specification is still being developed.

Can I request a particular size or finish?

Yes, include your required size and finish in the enquiry. Availability and any processing requirements must be confirmed in the quotation.

How are minimum order and lead time confirmed?

They depend on grade, dimensions, processing and quantity. We confirm them for the particular order rather than publish one figure for every product.

What documents should I request?

State the material test document, inspection scope and other purchasing documents required for your project. Agree these with the order.

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