Products Description
SGC570 hot-dip galvanized steel coil is a high-strength hot-dip galvanized steel sheet that complies with the Japanese JIS G 3302 standard. It has excellent formability and corrosion resistance and is suitable for building structures, automotive structural parts, engineering machinery and other fields.
Product Parameters
SGC570 Galvanized Steel coil：
|
Item |
Parameter details |
|
Material standard |
JIS G 3302 (Japanese standard) |
|
Tensile strength (Rm) |
570-700 MPa |
|
Yield strength (Rp0.2) |
≥500 MPa (typical 520-600) |
|
Elongation (A50mm) |
≥12% |
|
Coating type |
Hot-dip galvanizing (single-sided marking: Z18-Z27) |
|
General specifications |
Thickness 1.0-4.0mm · Width 900-1800mm |
Product Advantages
SGC570 Steel coil
✅ Ultra-high strength - tensile strength 570-700MPa, 60% higher than ordinary galvanized steel
✅ Lightweight design - thickness can be reduced by 25%, reducing structural weight
✅ Long-term corrosion protection - Z22 coating salt spray test ≥1500 hours without red rust (JIS Z 2371)
✅ Precision molding - elongation ≥12%, suitable for rolling, stamping and other processing processes
✅ Japanese quality - zinc layer purity ≥99.8%, zinc flower uniformity (3-8mm)
Applications
With its high strength (tensile strength 570-700MPa) and excellent weather resistance, SGC570 is mainly used in the construction field where load-bearing and durability requirements are stringent:
|
Features |
Advantages for architectural applications |
Compared with ordinary steel (such as SGCC) |
|
Ultra-high strength |
Reduced material usage (can be reduced by 20-30%) |
A thicker plate is required to achieve the same strength |
|
Thick zinc coating |
Outdoor service life of 25 years+ |
Ordinary galvanizing (Z18) takes about 10-15 years |
|
Micro-alloyed substrate |
Anti-fatigue cracking at seismic nodes |
Ordinary low-carbon steel is prone to stress corrosion |
Also used in:
Automobile manufacturing: frame longitudinal beams, battery pack protection plates (Z22 coating)
Engineering machinery: excavator booms, crane rails (Z27 coating)
Processing suggestions
Stamping: Die gap 12-15% plate thickness, recommended lubricant viscosity 60-80SSU
Welding: Spot welding 10-12kA (1.5mm plate thickness); Laser welding: 4kW/5m/min (nitrogen protection)
Cutting: Plasma cutting is better (laser cutting needs to increase power by 20%)
Packaging and Service
Standard packaging: steel belt + anti-rust film
Special requirements: anti-rust/wooden pallet reinforcement (export standard)
Quality certification: JIS Japanese Industrial Standard Certification, ISO 9001 Quality Management System, SGS third-party test report
about us
GNEE Group strictly follows domestic and international trade practices, regards reputation as life, and provides the best quality products and the most complete services to all customers.
Our products are mainly exported to South America (35%), Africa (25%), the Middle East (20%), Southeast Asia (20%) and other regions. Good corporate reputation has won the trust of customers. In these fields, we have established stable and lasting cooperative relations with many customers by virtue of integrity, high-quality products, reasonable prices and sincere services.
Mainly engaged in the export trade of the following steel products: CRC/CRS, GI, GL, PPGI, PPGL, ROOFING SHEETS, steel pipes, galvanized parts, silicon steel, etc. Products are widely used in hardware, machinery, electrical appliances, vehicle accessories, construction and other industries
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