SGCC Hot-Dip Galvanized Steel – JIS G3302 Standard | DAITIN STEEL Vietnam Export Supplier

1. Introduction: Reliable SGCC Supplier for Global Markets

In today’s industrial world, corrosion resistance and dimensional precision are vital factors that determine product quality. DAITIN STEEL Vietnam proudly supplies SGCC hot-dip galvanized steel coils and sheets that meet JIS G3302 standards, designed for long-term performance in harsh environments.

With more than 10 years of experience serving industrial manufacturers (FDI factories) and export clients across Asia, DAITIN STEEL positions itself as a trusted supplier of coated steel products to international buyers — providing fast quotation, competitive prices, and stable logistics from Vietnam to Europe and beyond.

2. What Is SGCC Hot-Dip Galvanized Steel?

SGCC (Steel, Galvanized, Cold Rolled, Commercial Quality) is a hot-dip galvanized steel grade under the JIS G3302 standard.
It is produced by immersing cold-rolled steel in molten zinc, creating a protective zinc coating that enhances corrosion resistance while maintaining the mechanical strength of the base steel.

Key Benefits of SGCC:

Excellent corrosion protection and long-term durability
Smooth surface with uniform zinc coating (Z08–Z27)
Suitable for bending, forming, and stamping applications
Compatibility with paint and surface treatment processes
Widely used in construction, home appliances, automotive, and HVAC systems

3. Technical Specifications (JIS G3302 – SGCC)

Parameter	Specification
Grade	SGCC (JIS G3302)
Standard	Japanese Industrial Standard (JIS)
Base metal	Cold rolled low-carbon steel
Zinc coating	Z08–Z27 (80–270 g/m² total both sides)
Thickness	0.25 mm – 3.0 mm
Width	914 / 1000 / 1219 / 1250 mm
Coil weight	3 – 10 tons
Surface finish	Regular spangle / zero spangle / chromated / oiled
Form	Coil / Sheet / Slit coil
Tensile strength	≥ 270 MPa
Elongation	≥ 20%
Coating adhesion	180° bending test – no peeling or flaking

All materials are supplied with Mill Test Certificates (MTC) and conform to RoHS and REACH requirements for safe export to the EU market.

4. Equivalent International Grades

To help international buyers compare specifications, SGCC is equivalent to several international galvanized steel standards:

Standard	Grade	Country/Region
ASTM A653	CS Type A/B	United States
EN 10346	DX51D	Europe
GB/T 2518	SGCC / SGCH	China
KS D 3506	SGCC	Korea
ISO 3575	Fe P01G Z	International

Conclusion:
SGCC corresponds closely with DX51D and ASTM A653 CS Type A, making it fully acceptable for European and global applications where corrosion-resistant galvanized steel is required.

5. Applications Across Industries

SGCC galvanized steel offers excellent versatility across many sectors:

Construction: roofing sheets, wall panels, rainwater gutters, purlins, framing structures
Automotive: inner body panels, reinforcement components, underbody protection
Home appliances: refrigerator panels, washing machine covers, microwave housings
HVAC systems: air ducts, ventilation covers, and exhaust components
Electrical equipment: enclosures, switch boxes, transformer casings

DAITIN STEEL can provide customized coil slitting and sheet cutting services to meet specific production needs, ensuring precision tolerance and minimal material waste (loss <1%).

6. Quality Assurance: Sourcing from POSCO, CSVC, and Formosa

At DAITIN STEEL, product quality is guaranteed through direct sourcing from world-class mills such as:

🇰🇷 POSCO (Korea) – Renowned for consistent zinc adhesion and superior mechanical performance
🇯🇵 CSVC (Vietnam – Japan joint venture) – Advanced galvanizing lines and precise coating control
🇻🇳 Formosa Ha Tinh (Vietnam) – Competitive pricing and reliable domestic logistics

Each supplier’s SGCC material undergoes three layers of QC inspection before dispatch:

Incoming inspection (surface, thickness, coating uniformity)
Mid-process verification (slitting, shearing, packaging)
Final QC + Mill Test Certificate prior to shipment or export documentation.

7. Export Capabilities and Documentation

DAITIN STEEL provides complete export documentation for customers in the EU and global markets:

Commercial invoice & packing list
Certificate of Origin (Form B / EUR.1 / REX code upon request)
Mill Test Certificate (MTC)
Quality assurance report (QC photos & batch records)
Customized marking and pallet packaging (anti-rust paper + steel strap + wooden base)

Our logistics team coordinates sea freight from Hai Phong Port, delivering to Europe within 20–35 days, depending on destination. Flexible Incoterms (FOB, CIF, DDP) and multiple payment methods (T/T, L/C) are supported.

8. Competitive Advantages of DAITIN STEEL

Why International Buyers Choose Us

Fast Quotation – within 5 minutes after receiving your inquiry
Stable delivery time – 2 to 5 working days for local supply, and export-ready within 25 –30 days
Consistent quality control, certified by ISO and internal DAITIN QC protocol
Flexible coil processing – slit, cut-to-length, recoiling according to customer specs
Competitive pricing, thanks to strong partnerships with POSCO, CSVC, and Formosa
Dedicated export team, fluent in English and experienced with EU import procedures

Our mission is simple:

“To deliver high-quality galvanized steel with precision, speed, and integrity to every customer worldwide.”

9. Sustainability and Compliance

DAITIN STEEL is committed to environmentally responsible production and compliance with global standards:

All SGCC materials are RoHS- and REACH-compliant
No use of hexavalent chromium in surface treatment
Packaging and shipping meet EU environmental directives
Continuous improvement of our supply chain to reduce carbon footprint

We believe that sustainability and quality go hand in hand — ensuring that every coil shipped from Vietnam carries both performance and responsibility.