S280GD PPGI Steel Coil
S280GD high-strength structural PPGI steel coil with 280 MPa min. yield strength. Prepainted on a galvanized base. Ideal for structural roofing, purlins, and pre-engineered buildings (PEBs). Mill certified to EN 10346.
| Material | Prepainted High-Strength Galvanized Steel Coil |
|---|---|
| Grade / Standard | S280GD+Z |
| Thickness | 0.30mm - 1.5mm |
| Width | 600mm - 1250mm |
| Inner Diameter (ID) | 508mm / 610mm |
| Coil Weight | 3-8 Tons |
| Delivery Condition | hot_rolled / cold_rolled |
| Surface Treatment | galvanized |
| MOQ | 10 Tons per color/size |
| Delivery Time | 15-30 Days |
| Loading Port | Tianjin / Shanghai / Qingdao |
Overview of S280GD PPGI Steel Coil
S280GD PPGI Steel Coil is a high-performance building material that combines structural integrity with a durable, aesthetic finish. The ‘S280GD’ designation, specified under EN 10346, indicates a structural steel grade with a minimum yield strength of 280 MPa, making it suitable for load-bearing applications. This high-strength galvanized (GI) steel substrate is then pre-treated and coated with organic paint on a continuous coil-coating line, a process known as PPGI (Prepainted Galvanized Iron).
The resulting product, S280GD PPGI, offers the best of both worlds: the strength to create long-span roofing, purlins, and structural panels, combined with the vibrant color and weather protection of a high-quality paint system. This eliminates the need for post-fabrication painting and provides a consistent, long-lasting finish, making it an ideal choice for modern pre-engineered buildings (PEBs) and structural roofing projects.
Key Features of S280GD Grade and PPGI Coating
The unique advantages of S280GD PPGI coil stem from its dual-component nature:
– **High Structural Strength:** The S280GD substrate guarantees a minimum yield strength of 280 MPa. This high strength allows for the design of longer purlin spans or the use of thinner, lighter-gauge material for a given load, leading to significant weight and cost savings in building structures.
– **PPGI Paint System:** The prepainted surface provides excellent aesthetic appeal and environmental protection. It is available with various paint systems, including Polyester (PE), HDP, and PVDF, to meet different durability and warranty requirements. The underlying hot-dip galvanized (GI) layer provides robust corrosion resistance.
– **Excellent for Roll-Forming:** While a structural grade, S280GD is designed for roll-forming into profiles like roofing sheets, structural decks, and C/Z purlins. The paint and zinc coatings are engineered to adhere perfectly during the profiling process.
Main Applications of S280GD PPGI Coil
S280GD PPGI is specifically intended for applications where both color and structural strength are required. It is not suitable for deep drawing but is perfect for:
– **Structural Roofing & Cladding:** Used to produce long-span trapezoidal and standing seam roofing panels that must withstand significant wind and snow loads.
– **Purlins and Girts:** Cold-formed into C-shaped and Z-shaped purlins and girts, which form the secondary framing of pre-engineered metal buildings (PEBs).
– **Structural Sandwich Panels:** Used as the outer skin for insulated sandwich panels that require load-bearing capabilities.
– **Structural Decking:** Roll-formed into steel decking profiles used in composite floor systems.
– **Pre-Engineered Buildings (PEBs):** It is a fundamental material in the PEB industry for creating the building’s complete colored and structural envelope.
Why Choose Us for S280GD PPGI Coil
Shandong Tanglu Metal Material Co., Ltd. is a specialist supplier of structural grade PPGI coils like S280GD. We understand that for structural applications, material certification is non-negotiable. Every coil of S280GD PPGI we supply comes with an original Mill Test Certificate (MTC) conforming to EN 10204 3.1, which explicitly verifies the critical mechanical properties, including a yield strength ≥ 280 MPa, tensile strength ≥ 360 MPa, and elongation. We combine this certified high-strength substrate with premium paint systems from world-class brands, ensuring your project has both the structural integrity and the long-lasting aesthetic appeal it demands. Our expertise in logistics ensures that these high-value coils are delivered to your site safely and on time.
📐 Dimension & Size Table
| Thickness (mm) | Width (mm) | Paint System | Base Metal |
|---|---|---|---|
| 0.30-0.50 | 600-1250 | PE, SMP | S280GD+Z |
| 0.50-0.80 | 600-1250 | PE, SMP, HDP | S280GD+Z |
| 0.80-1.20 | 900-1250 | HDP, PVDF | S280GD+Z |
| 1.20-1.50 | 900-1250 | HDP, PVDF | S280GD+Z |
* Custom sizes available upon request. Tolerances per relevant international standards.
🔬 Chemical Composition
| Element | Min | Max | Display Value | Note |
|---|---|---|---|---|
| C | - | 0.20 | ≤0.20 | Substrate per EN 10346 |
| Si | - | 0.60 | ≤0.60 | Substrate per EN 10346 |
| Mn | - | 1.70 | ≤1.70 | Substrate per EN 10346 |
| P | - | 0.12 | ≤0.12 | Substrate per EN 10346 |
| S | - | 0.045 | ≤0.045 | Substrate per EN 10346 |
* Chemical composition may vary by heat, thickness and specification. Please refer to the actual mill test certificate.
⚙️ Mechanical Properties
| Property | Value | Unit | Test Condition |
|---|---|---|---|
| Yield Strength (Re) | ≥280 | MPa | Guaranteed minimum for S280GD grade |
| Tensile Strength (Rm) | ≥360 | MPa | Guaranteed minimum for S280GD grade |
| Elongation (A80) | ≥19 | % | Minimum value for S280GD grade |
| Top Coat Paint Thickness | 15-25 | μm | Standard PE/PVDF top coat |
| T-Bend Test | ≤6T | Typical for structural grades | |
| Pencil Hardness | ≥HB | ASTM D3363 |
* Values shown are minimum requirements unless otherwise stated.
📦 Commercial Information
| Packaging | Standard seaworthy export packing for PPGI coils. Each coil is wrapped with waterproof paper and PE film, with hardboard edge protectors. A full outer steel shell provides maximum protection. The coil is placed 'eye to sky' on a wooden pallet and securely strapped with steel bands. Each package is clearly labeled with product details including grade S280GD, color, paint type, and specifications. |
|---|---|
| Payment Terms | T/T (Telegraphic Transfer),L/C (Letter of Credit) |
| Price Term | FOB,CFR,CIF,EXW |
| Supply Capacity | 15,000 Tons/Month (Structural Grades) |
| Loading Port | Tianjin / Shanghai / Qingdao |
Why Choose Our S280GD PPGI Steel Coil?
High Structural Strength
Guaranteed minimum yield strength of 280 MPa, making it suitable for load-bearing roofing, purlins, and structural panels, allowing for optimized, cost-effective building design.
Certified Performance
Supplied with a Mill Test Certificate (MTC) verifying full compliance with EN 10346 for the S280GD substrate, ensuring your project meets all engineering specifications.
Durable Color Finish
Combines structural performance with the aesthetics and weather resistance of a PPGI finish, available in a wide range of RAL colors and durable paint systems like HDP and PVDF.
Ideal for PEB & Purlins
The perfect raw material for cold-forming into C & Z purlins, girts, and long-span cladding panels used in the construction of pre-engineered metal buildings (PEBs).
Design & Weight Efficiency
The high strength-to-weight ratio allows designers to use thinner gauge steel or specify longer spans between supports, reducing overall material consumption and building weight.
🏭 Applications of S280GD PPGI Steel Coil
S280GD PPGI steel coil is engineered for the demands of modern construction. It is the essential material for the pre-engineered building (PEB) industry, where it is roll-formed into high-strength, colored roofing panels, wall cladding, and the crucial C and Z purlins that form the building's secondary skeleton. Its use extends to any construction project requiring long-span, load-bearing roof or floor decking that also demands a permanent, aesthetically pleasing colored finish, thereby saving time and money on post-painting and maintenance.
📋 Quality & Certification
Our Certifications
- ✅ ISO 9001:2015
- ✅ CE Marking
- ✅ ABS
- ✅ DNV GL
- ✅ Lloyd's Register (LR)
- ✅ Bureau Veritas (BV)
- ✅ SGS Certified
- ✅ NK
- ✅ RINA
Mill Certificate Type
- 📋 EN 10204 3.1
- 📋 EN 10204 3.2
- 📋 Original Mill Certificate
- 📋 Third Party Inspection Available
- 📋 Certificate of Origin
❓ Frequently Asked Questions
What is S280GD PPGI?
S280GD PPGI is a prepainted galvanized steel coil where the base steel is a structural grade (S280GD) with a minimum yield strength of 280 MPa, as per European standard EN 10346. It combines the load-bearing capacity of structural steel with the color and corrosion protection of a PPGI finish.
What is the main difference between S280GD PPGI and DX51D PPGI?
The main difference is their purpose. DX51D is a soft, non-structural forming grade, designed for general bending and profiling where strength is not a primary concern. S280GD is a structural grade with a guaranteed minimum yield strength, designed for load-bearing applications like purlins and long-span roofing. Using DX51D in an application that requires S280GD would be unsafe.
What are the benefits of using a high-strength grade like S280GD?
Using a high-strength steel allows designers to achieve the required load capacity with a thinner, lighter steel sheet. This can reduce the overall weight of the building, which in turn can lead to cost savings in the foundation and primary structure. It also allows for longer, unsupported spans in roofing and decking.
Can S280GD steel be used for deep drawing or complex stamping?
No. As a structural grade, S280GD has lower elongation than forming grades like DX51D. It is designed for roll-forming into profiles and for simple bending. It is not suitable for deep drawing or complex stamped parts, which could cause the steel or the coating to crack.
Why is S280GD PPGI used for purlins?
Purlins are the secondary framing members in a roof that support the roof sheets and transfer the load to the primary rafters. They are a critical structural component. S280GD provides the necessary strength to handle these loads over long spans. The PPGI coating provides corrosion protection and a finished look without needing to be painted after installation.
Get a Quote for
S280GD PPGI Steel Coil
Submit your requirements and receive a competitive price quote within 24 hours.
- ✓ Fast response within 24 hours
- ✓ Competitive factory-direct pricing
- ✓ Free technical consultation
- ✓ Mill test certificate provided
- ✓ Flexible payment terms available
⏱ Response within 24 hours
Send Your Inquiry
All fields marked with * are required