Basic Info
Model No.: SGCD3, SGC340, SGC340
Product Description
Product Description
The prepainted steel plate in coil is a product obtained by subjecting a hot-dipped galvanized steel sheet, and galvalume steel sheet, or an aluminum sheet to a surface chemical treatment (coating), followed by baking and curing.
Unrolling → Stitching machine → Entrance loop → Pretreatment → Initial coating → Bake → Cool down → Fine coating → Bake → Embossed film → Export loop → Inspection station → Cut → Coiling
The total thickness of the pre-panted galvanized steel coil is composed of the base steel – coating -primer – top paint – protective layer thickness. The top paint thickness is 10-25μm, and the back paint thickness is 5-20μm. The thinner the base
steel thickness, the higher the price of the ppgi steel coil, because the processing cost becomes higher.
* Usually, the paint coating material is polyester (PE) and the color of the back paint is white grey. The color can be customized according to the RAL color card or customer samples. Special patterns can be made, such as wood grain, flower print,camouflage, brick.
PPGI Steel Coil Specification
Product Name PPGI, Prepainted Galvanized Steel Coil,Carbon Steel Coil,Galvalume Technical Standard AISI, ASTM, BS, DIN, GB, JIS3312 Material Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement Thickness 0.13-1.20 mm Width 600-1250mm Zinc Coating AZ30--AZ170, Z40--Z275 Color all RAL Colors, or According to Customers Require/Sample Coil ID 508/610mm Top Side Top paint: PVDF,HDP,SMP,PE,PU; Primer paint: Polyurethance, Epoxy, PE Back side Back paint:epoxy,modified polyester Surface Treatment Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) Coil Weight 3-8 tons per coil Package Standard export package or customized Hardness soft (normal), hard, full hard(G300-G550) T Bend >=3T Reverse Impact >=9J Pencil hardness >2H Salt Spray Resistance >=500 hours
Production Line
PPGI Production Process Flow Chart

PPGI & PPGL Sheet Coating Layer
PPGI paint coating
Coating primer | Top paint coating | Service life(years) |
1) Epoxy primer, good adhesion, water resistance, alkali resistance, chemical corrosion resistance, poor single toughness. | 1) Polyester resin, good adhesion, molding and outdoor durability. | 8-10 |
| 2) Silicon Modified Polyester (SMP) | 10-15 |
| 3) High weather resistant polyester (HDP) | 12-15 |
| 4) Polyvinyl fluoride (PVC) | 12-15 |
| 5) Polyvinylidene fluoride/fluorocarbon (PVDF) It has good formability and color retention, good outdoor durability and powder resistance, solvent resistance, limited color and high price. | 12-20 |
Quality Control
We have our own Physical & Chemical Testing Center Lab. to guarantee our product quality. Our test items & instrument fully meet international standards.

Packing Details
Standard Export Packing:
- 4 eye bands and 4 circumferential bands in steel
- Galvanized metal fluted rings on inner and outer edges
- Galvanized metal and waterproof paper wall protection disk
- Galvanized metal and waterproof paper around circumference and bore protection
- About the sea worthy packaging: extra reinforcement before shipment to ensure that the goods are safer and less damaged to customers.

Shandong Guanzhou Iron and Steel Group Co., Ltd
The whole set of machinery and equipment are imported from Japan and Germany, which ensures the stable quality of our products. Our main products include Marine Steel Plate; Alloy Steel Plate Weather ; Resistant Steel Plate; Pressure Vessel Plate etc. The company's products are of high quality, low price, and fast delivery, and are well received by domestic and foreign users. Products are widely used in lighting, solar reflectors, architectural appearance, interior decoration, ceilings, walls, furniture, cabinets, elevators, signs, luggage, automotive interior and exterior decoration, interior decoration, aerospace and military, mechanical parts processing, Mold manufacturing, chemical/insulation pipeline coating, high-quality ships, and other industries.
The company has cutting, opening, laser processing, and other mechanical processing equipment, and can produce various widths and lengths of coil and sheet, These materials can be cut, sold, and processed for customers. To provide customers with satisfactory quality, and perfect service, and reduce procurement costs is the company's purpose.
Since its establishment, the company has always regarded product quality as the foundation of enterprise survival and service quality as the bridge to success. We sincerely hope to establish business contacts with our customers and provide high-quality services. The business philosophy of "seeking truth, development, and innovation" and entrepreneurial integrity is our company's business purpose. We warmly welcome customers and colleagues to visit our company and create brilliance for the steel industry.
In its years of operation, the company has won the recognition of the majority of users with its fast, efficient and perfect after-sales service. In today's increasingly fierce market competition, while giving full play to its own advantages, it will learn from the experience of successful enterprises, constantly improve itself, reasonably adjust its business strategy, and strive to adapt to the market. We will adhere to the tenet of quality first and reputation first, and serve society with high level, high quality, and high standard. We will rely on complete modern enterprise management and quality system and advanced quality testing methods, strive to build an "excellent" brand, and provide the best quality products and services for new and old customers at home and abroad!
We firmly believe that "quality is the core of the company's sustainable strength". We will form a stable, long-term, and win-win relationship with customers, and keep in mind the corporate motto of "survive by quality, develop by technology, and go global by integrity". Quality Requirements Committed to providing high-quality products and personalized services; adhere to the strategy of high-quality products, and carefully build a technologically competitive enterprise with professional characteristics in the field of Pressure Vessel Plate, Marine Steel Plate, Alloy Steel Plate, Weather Resistant Steel Plate.
Company Info
- Company Name: Shandong Guanzhou Iron and Steel Group Co., Ltd
- Representative: Qujingsong
- Product/Service: Carbon Steel Plate , Pressure Vessel Steel Plate , Alloy Steel Plate , Wear Resistant Steel Plate , Galvanization Steel Coil , Color Coated Steel Coil
- Capital (Million US $): 1000000RMB
- Year Established: 2022
- Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
- Export Percentage: 51% - 60%
- Total Annual Purchase Volume (Million US $): US$10 Million - US$50 Million
- No. of Production Lines: 10
- No. of R&D Staff: 21 -30 People
- No. of QC Staff: 5 -10 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): 1,000-3,000 square meters
- Factory Location: Liaocheng, Shandong, China
- Contact Person: Mr. Guanzhou
- Tel: 86-635-4650736
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