JIS G3312 HDG Galvanized Steel Coil SGCC SGCH 0.25-2.0mm Anti-Fingerprint Polish Surface
Product Spotlights
Welcome to Hemaokang Steel (Shandong) Co., Ltd., a professional steel supplier located in Liaocheng, Shandong, China. Our JIS G3312 HDG galvanized steel coil is offered in SGCC and SGCH grades with an anti-fingerprint polished surface and a thickness range of 0.25 mm to 2.0 mm. This product combines the strength of cold-rolled steel with the corrosion resistance of a hot-dip zinc coating, making it a reliable choice for manufacturers and distributors. As a factory-direct source, we focus on consistent quality, competitive pricing, and practical solutions for challenging projects.
Product overview
The JIS G3312 hot-dip galvanized steel coil is produced through a continuous galvanizing process. During this process, a prepared steel strip is coated with a zinc layer that provides long-term protection through barrier protection and sacrificial action. SGCC commercial quality offers balanced strength and ductility for general fabrication, while SGCH hard quality provides a higher hardness option for parts that must resist denting and maintain shape. The anti-fingerprint polished finish helps maintain a clean, bright surface during handling, storage, and installation.
Key product features
- Compliant with JIS G3312 for consistent shape, dimension, and coating characteristics.
- Available in SGCC and SGCH grades to match your fabrication method and end-use mechanical property.
- Thickness range from 0.25 mm to 2.0 mm to support light- and medium-gauge processing.
- Smooth anti-fingerprint polished surface that reduces fingerprints, smudges, and contamination marks.
- Hot-dip galvanized coating with good adhesion, allowing bending and forming without severe coating flaking.
- Clean surface appearance suitable for visible architectural and appliance components.
- Flat, even coil shape with properly controlled width, thickness, and surface quality.
- Customizable coil width, inner diameter, coil weight, and packaging based on project requirements.
- Suitable for shearing, stamping, roll forming, bending, and drawing operations.
- Manufactured under an ISO9001-managed production quality system.
Technical specifications
| Parameter | Value |
|---|---|
| Standard | JIS G3312 |
| Available grades | SGCC, SGCH |
| Thickness | 0.25 mm – 2.0 mm |
| Surface treatment | Anti-fingerprint polished surface |
| Coil width | Customizable upon request |
| Inner diameter | Available upon request |
| Coil weight | Customizable based on order |
| Application | Roofing, appliances, automotive parts, cabinets |
| Loading port | Qingdao, China |
| Quality management | ISO9001 |
Typical applications include roofing and wall panels, garage doors, door frames, air conditioner casings, electrical cabinets, auto components, roll-formed profiles, storage and display racks, and other light steel structures. The final suitability of a specific grade depends on the forming requirement and the environmental conditions of the end product. For projects requiring deeper stamping or complex bending, SGCC is often preferred. For panels that must hold a shape under load or impact, SGCH may be more appropriate.
Performance benefits for your production
The combination of steel strength and zinc protection makes this galvanized coil useful in many moderate corrosive environments. The zinc coating can sacrifice itself to protect exposed edges and small scratches, which extends the service life of the finished component. For roofing and cladding, the polished surface gives a clean appearance while the anti-fingerprint film minimizes visible marks during installation. For appliance enclosures and electrical cabinets, the coil offers a smooth base for further processing and a professional finish for visible surfaces.
Formability is another important advantage. This JIS G3312 product is designed for processing operations such as cutting, bending, stamping, and roll forming. SGCC is a common choice for components that require drawing or complex bends. SGCH is often selected when the final component needs higher strength and good resistance to mechanical deformation. By selecting the appropriate grade, fabricators can balance production efficiency with the mechanical performance required by the final application.
Because the coil is supplied in thicknesses from 0.25 mm to 2.0 mm, it provides flexibility for both thin decorative parts and medium-duty structural parts. Manufacturers can produce corrugated sheets, cable trays, doors, racks, chassis components, and enclosures with conventional steel-working equipment. The consistent gauge helps maintain product uniformity and makes production planning more predictable.
Supply and customization
Hemaokang Steel (Shandong) Co., Ltd. offers production flexibility. We understand that buyers often need specific widths, coil weights, inner diameters, and packaging methods. Inquiries with a target material grade, thickness, width, and coating requirement are welcome. We will confirm the appropriate specification and provide a delivery plan according to your project schedule and destination country. Customization options can be discussed directly with our sales team before ordering.
All export orders are loaded at Qingdao port, one of the major shipping hubs in China, which supports convenient ocean transportation to global destinations. Our internal team manages order documentation, protective packaging, loading, and delivery coordination, helping overseas buyers reduce communication barriers and receive clear order updates.
Why work with us
At Hemaokang Steel (Shandong) Co., Ltd., we combine a professional production background with a strong export service mindset. Our annual export value is in the range of US$50 million to US$100 million, and our experienced team of 51 to 100 employees supports customers across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. We operate with ISO9001 quality management practices, and we are ready to supply supporting documents, technical information, and samples upon request. For your next procurement, choose this JIS G3312 HDG galvanized steel coil for dependable protection, clean surface quality, and responsive factory support. Contact us now to discuss your order specifications.
Frequently asked questions
1. What is the difference between SGCC and SGCH?
SGCC is commercial quality steel with good formability for general-purpose processing. It is often used for bending, stamping, and roll forming when ductility is important. SGCH is hard quality steel with higher hardness and strength, suitable for applications that need better resistance to denting and deformation. Your choice should be based on the forming requirements and the mechanical demands of the final component.
2. What does anti-fingerprint polished surface mean?
The anti-fingerprint surface is a clear protective film applied to the galvanized layer. It creates a smooth and polished appearance that reduces visible finger marks, smudges, and handling stains. This finish is useful for products that will be visible to end users, such as appliances, door panels, and building components.
3. Can thickness and width be customized?
The standard thickness range is 0.25 mm to 2.0 mm. Coil width, inner diameter, and coil weight can be customized to fit your processing equipment and logistics requirements. Because these settings may affect production planning, please provide your exact specifications during the inquiry stage.
4. Is this coil suitable for outdoor roofing?
Hot-dip galvanized steel coil is commonly used for roofing and wall panels. The actual service life depends on the zinc coating mass, local environment, installation method, and maintenance. If you need extended outdoor durability, please discuss coating weight and surface protection options with our sales team.
5. What certifications and quality documents are available?
Our production quality system is managed under ISO9001. Mill test certificates, material test reports, and other shipping documents can be provided according to your requirements. Please confirm the exact documentation needed for your destination customs clearance and end-user contract.
6. Can I place a small trial order?
Yes, trial orders are welcome. The minimum quantity depends on the coil width, gauge, surface treatment, and production schedule. We encourage first-time buyers to contact us with their target specification so we can suggest a practical trial order size.
7. How is the coil packed for export?
Coils are protected with moisture-proof paper, plastic film, edge protectors, and steel or wooden pallets where appropriate. Packaging can be adjusted to meet ocean freight, break-bulk, or container shipment requirements. Our export packing is designed to reduce damage during long-distance transportation.
8. What is the lead time for this product?
Lead time depends on order quantity, specification, and production load. After receiving your detailed inquiry, we will confirm a delivery schedule that matches your shipping date and destination requirements. For an accurate lead time, please contact us at the beginning of your procurement cycle.
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