PPGL Steel Strip is a narrow-gauge pre-painted galvanized galvalume steel coil. It uses a 55% aluzinc steel as the substrate, combined with high-performance color coating and precision slitting technology. It offers superior weather resistance, corrosion resistance, and decorative properties, along with the advantages of precise narrow width, easy processing, and low material waste. It is widely popular in fields such as automotive parts, precision hardware, photovoltaics, electronic appliances, and architectural decoration.

PPGL Steel Strip – Raw Material
The PPGL Steel Strip produced by the Wanzhi PPGL factory meets the requirements for bending and stamping deep drawing processes. The substrate, width, thickness, color, coating type, paint, film thickness, etc., can be flexibly customized based on the customer’s specific application scenario.
Steel Grade
We offer various substrate grades. You can choose according to the forming and strength requirements of your application field.
- DX51D+AZ, SGCC/SGCD+AZ, Q195+AZ: Standard forming grade, suitable for most bending and stamping processes.
- DX52D/DX53D+AZ: Excellent ductility, suitable for complex stamping or deep drawing forming.
- S350GD/S550GD+AZ: High-strength structural grade, used for components with load-bearing requirements.
Standard
Wanzhi PPGL Strip strictly complies with major global standards. The precision of the strip, coating quality, and pre-painted performance can be verified through third-party authoritative inspections.
- Substrate Standards: EN 10346, EN 10142, ASTM A792, ASTM A755/A755M, JIS G3321, GB/T 14978, ISO 3575, ISO 1461
- Coating Performance: Referencing Qualicoat, GSB specifications, weather resistance is verifiable.
Coating Type
Based on the application environment and lifespan requirements, Wanzhi Group offers multiple coating options such as PE, SMP, HDP, and PVDF.
- Polyester (PE): Economical and versatile, rich in color.
- Silicon Modified Polyester (SMP): Significantly improved weather resistance and color retention.
- High Durability Polyester (HDP): Excellent UV resistance, the preferred choice for outdoor use.
- Polyvinylidene Fluoride (PVDF): Top-tier weather resistance (20-30 years), good self-cleaning properties.
Aluzinc Coating Weight
Wanzhi Group offers Aluzinc steel substrate options ranging from AZ30 to AZ150, suitable for different anti-corrosion scenarios.
- Popular Coatings: AZ30, AZ50, AZ70, AZ100, AZ150 (Total for both sides).
Thickness and Width
- Thickness: 0.12mm – 2.0mm
- Master Coil Width: 600mm – 1250mm
- Tolerance Control: Thickness tolerance ±0.02mm (high-precision grade), ensuring material consistency.
Paint Film Performance
- Top Side Coating Thickness: ≥10μm (can be thickened up to 40μm)
- Back Side Coating Thickness: ≥5μm
- T-bend Performance: Up to 1T – 3T, adaptable to various bending forming processes
- Salt Spray Resistance: Depending on the coating and paint combination, can reach 500-1000 hours.
PPGL Steel Strip – Slitted
Slitting is a core processing step for PPGL Steel Strip. Our factory relies on dedicated strip steel slitting equipment and coating protection processes to achieve “high precision, zero damage, and high efficiency” slitting, differentiating us from ordinary slitting service providers.
Advantages
- Equipment: High-precision CNC PPGL strip slitter and slitting machine ensure smooth, burr-free cuts, no edge wave, and no coating peeling.
- Coating: The Aluzinc coating and color coating maintain the original coil’s anti-corrosion performance during strip tension and deformation; salt spray test results are consistent with the original coil.
- Coiling: The inner diameter of the slit strip coil can be customized to standard specifications of 508mm/610mm, and the coil weight can be adjusted from 0.5 to 10 tons as needed.
- Efficiency: A single machine can simultaneously slit one wide PPGL master coil into multiple coils of different widths, meeting the customer’s demand for multiple specifications in one go.
- Finished Product Inspection: After slitting, each coil of strip undergoes three inspections: dimensional tolerance, surface quality, and edge treatment. Non-conforming products are directly reworked to ensure delivered PPGL strip is flawless and ready for immediate deep processing.
Specifications
| Slitting Capability | Technical Parameters |
| Slitting Width | 5mm – 600mm (depending on master coil width) |
| Width Tolerance | ±0.1mm, ±0.05mm |
| Edge Quality | No burrs, no wavy edges, neat cut |
| Coil Inner Diameter (ID) | 508mm / 610mm (customizable) |
| Single Coil Weight | 200kg – 2000kg (slit to order) |
| Protection Method | PE protective film can be applied |
PPGL Steel Strip – Factory
The Wanzhi Group production base is located in Boxing County, Binzhou City, Shandong Province, China. It possesses advanced Aluzinc coating lines, color coating lines, and is equipped with a precision slitting processing center and metal sheet forming processing center. It supplies PPGL steel, PPGL sheet and coil, PPGL corrugated sheets, etc., to end-users in various fields.
Factory Strength
- System Certification: ISO9001, ISO14001, ISO45001.
- Testing Capability: Equipped with coating thickness gauges, color difference meters, gloss meters, universal testing machines, salt spray test chambers, etc.
- Monthly Average Capacity: 20,000 tons of Aluzinc substrate, 10,000 tons of color coating processing, 10,000 tons of slitting processing.
- Delivery Cycle: 5-45 working days.

Factory Advantages
Substrate Source Advantage: From hot-dip Aluzinc to color coating and slitting, the entire process is autonomously controlled, ensuring quality.

- High-Precision Slitting Capability: ±0.1mm width tolerance meets the requirements of automated production lines.
- Flexible Customization Service: Width, thickness, coating, color, and packaging can all be customized as needed.
- Small Batch Support: Minimum Order Quantity (MOQ) is 5 tons.
- Global Supply Experience: PPGL Steel Strip is exported to over 100 countries and regions including Southeast Asia, the Middle East, South America, and Europe, accumulating rich experience.
- Excellent Cost Performance: Standard specification price range is 800-1000 USD/ton. Wholesale discounts are available for bulk purchases.
- One-Stop Service: From sample provision, order production, slitting processing to packaging, logistics, and after-sales service, we provide a complete one-stop solution.
PPGL Steel Strip – Application
Leveraging its core advantages of high corrosion resistance, high precision, high aesthetics, and easy processing, PPGL Steel Strip is widely used in various industries such as hardware manufacturing, home appliance production, photovoltaic new energy, building accessories, and transportation facilities.


- Automotive Manufacturing: Auto parts, guardrail clips
- Electronic Appliances: Power supply casings, back panels, internal shielding components
- Precision Hardware: Stamped parts, fasteners, metal clips, connectors, spring leaves
- Architectural Decoration: Door and window frames, curtain wall decorative lines, light-gauge steel studs
- Home Appliance Manufacturing: Microwave oven cavities, oven back panels, air conditioner brackets, heat sink parts
- Agriculture & Livestock: Agricultural greenhouse accessories, ventilation louvers, livestock equipment parts
Wanzhi Group has been deeply involved in the PPGL (Pre-Painted Galvalume Steel) field for many years. We possess hot-dip Aluzinc production lines, high-end color coating lines, and high-precision slitting equipment. Our PPGL coil and PPGL steel strip have been exported to over 100 countries and regions worldwide. Welcome to leave a message for inquiries.











