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Help CenterSteel Sheet & Plate & Checkered Steel Plate,2.5、3.0、3.5、4.0、4.5、5.0、6.0、7.0、8.0、10、12
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Detailed Description of Checkered Steel Plate
1. Product Overview
Checkered steel plate (also known as chequered plate) is a hot-rolled or cold-rolled metal plate with regular raised patterns on the surface. It integrates four core characteristics: anti-slip, wear resistance, structural reinforcement and decorativeness. The material is suitable for various scenario needs, with convenient processing and high cost performance. It is widely used in industrial platforms, stair treads, ship decks, workshop floors, vehicle bottom plates, architectural decoration and other fields, which can not only meet functional needs but also take into account basic decorative effects.
2. Implementation Standards
This product is produced in strict accordance with relevant national and industry standards to ensure qualified quality and stable performance. The core implementation standards are as follows:
National Standard: GB/T 3277-2015 "Checkered Steel Plates" (core standard, specifying key requirements such as dimensions, materials and mechanical properties of checkered steel plates)
General Supporting Standards: GB 700 (General Standard for Carbon Structural Steel), GB 709 (Dimensions, Shape, Weight and Allowable Deviations of Hot-Rolled Steel Plates and Strips), GB 712 (Structural Steel for Ship Hulls), GB 4171 (Weathering Structural Steel)
3. Material Classification (Common Grades and Core Characteristics)
Checkered steel plate materials are classified according to the corrosion, strength, wear resistance and other needs of the use scenario. The mainstream materials and their characteristics are as follows, and special materials can be customized on demand:
Material Type |
Typical Grade |
Core Characteristics |
Application Scenarios |
Carbon Structural Steel |
Q235B (Mainstream), Q355B |
High strength, low cost, easy cutting and welding, suitable for conventional working conditions, optimal cost performance |
Industrial platforms, stair treads, workshop floors, ordinary outdoor facilities (most commonly used) |
Weathering Steel |
Q355NH, Q235NH |
Strong resistance to atmospheric corrosion, stable rust layer not easy to fall off, no additional anti-corrosion treatment required |
Open-air platforms, port facilities, bridge auxiliary structures, outdoor landscape components |
Galvanized Steel |
Q235B + Hot-dip Galvanized (Z) |
Excellent anti-corrosion performance, lower cost than stainless steel, outstanding cost performance, uniform galvanized layer |
Humid environment, outdoor fences, light-duty platforms, vehicle accessories (galvanized layer ≥85μm) |
Wear-Resistant Steel |
NM360, Mn13 |
High wear resistance, impact resistance, good toughness, able to withstand friction and impact of heavy objects |
Mining machinery, heavy equipment bottom plates, hoppers, conveyor equipment liners |
4. Pattern Types (Four Main National Standard Styles)
Pattern styles are classified according to national standards. Different styles are suitable for different anti-slip needs and scenarios. The core styles are as follows:
Pattern Style |
Code |
Core Features |
Application Scenarios |
Diamond Pattern |
LX |
Optimal anti-slip performance, uniform protrusions, balanced force, not easy to accumulate dirt and slip |
Industrial platforms, ship decks, stair treads, heavy-duty vehicle bottom plates |
Lentil Pattern |
BD |
Round and smooth protrusions, comfortable walking, balanced wear resistance, combining anti-slip and practicality |
Building walkways, vehicle pedals, indoor floors, pedestrian overpasses |
Round Bean Pattern |
YD |
Small and round protrusions, easy to clean, mild anti-slip effect, no scratch on clothes |
Mall passages, toilet floors, light-duty platforms, decorative countertops |
Willow Leaf Pattern |
LY |
Smooth and beautiful lines, strong decorativeness, general anti-slip performance, focusing on appearance effect |
Exterior wall decoration, landscape components, facade modeling, indoor ceiling |
5. Specification and Dimensions (Core Parameters, Base Plate Thickness Excludes Pattern Protrusion)
Conventional specifications are available in stock, and special dimensions can be customized on demand. All dimensions comply with GB/T 3277-2015 standard. The specific parameters are as follows:
1. Thickness (Unit: mm)
Hot-rolled checkered plate (mainstream, suitable for heavy-duty/conventional scenarios): 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 6.0, 7.0, 8.0, 10.0, 12.0; Heavy-duty customized thickness: 16.0–20.0
Cold-rolled checkered plate (thin gauge, suitable for decoration/light-duty scenarios): 1.0, 1.2, 1.5, 2.0, 2.5, 3.0
Pattern protrusion height: 0.5–2.0mm (not included in the base plate thickness, does not affect the installation dimension)
Thickness tolerance (in line with national standard): 4.0mm±0.3mm; 6.0mm±0.4mm; 8.0mm±0.6mm (the larger the thickness, the slightly larger the tolerance range)
2. Width (Unit: mm)
Mainstream conventional width (in stock): 1000, 1220, 1250, 1500 (most commonly used, suitable for most scenarios)
Customized width: 600–1800 (in 50mm increments); Extra-wide customization: 2000mm (pre-order required)
3. Length (Unit: mm)
Mainstream fixed length (in stock): 2000, 2440, 6000 (can be directly cut for use)
Customized length: 2000–12000 (in 100mm increments); Support for cutting to size (cut to any length on demand, minimum cutting length ≥500mm)
4. Theoretical Weight (Reference Value, Q235B Material, Diamond Pattern, Unit: kg/㎡)
Base Plate Thickness (mm) |
2.5 |
3.0 |
4.0 |
5.0 |
6.0 |
8.0 |
Theoretical Weight (kg/㎡) |
21.6 |
25.6 |
33.4 |
42.3 |
50.1 |
67.8 |
Note: The theoretical weight varies slightly with different materials and pattern styles, and the actual weight shall be subject to the actual weight of the product.
6. Model Designation Method (In line with GB/T 3277-2015 Standard)
The model is clearly and standardized marked, which is convenient for procurement, acceptance and use. It is divided into complete format and simplified format:
Complete Format: Material + Pattern Code + Thickness×Width×Length + Implementation Standard No.
Example: Q235B-BD-5×1500×6000-GB/T 3277 (Meaning: Q235B material, lentil pattern, base plate thickness 5mm, width 1500mm, length 6000mm, in line with national standard GB/T 3277-2015)
Simplified Format: Pattern Code + Thickness×Width×Length (Default material is Q235B)
Example: BD-5×1500×6000 (Meaning: Default Q235B material, lentil pattern, 5×1500×6000mm specification)
7. Mechanical Properties (Reference Value, Taking Q235B Material as Example)
The mechanical properties meet the national standard requirements to ensure product strength and use safety. The specific parameters are as follows:
Yield Strength: ≥235MPa
Tensile Strength: 370–500MPa
Elongation: ≥26%
Hardness: About HB 137 (Brinell hardness, suitable for conventional working conditions)
For the mechanical properties of other materials (such as Q355B, stainless steel, etc.), refer to the national standard requirements of the corresponding materials or consult the manufacturer.
8. Surface Treatment
According to the anti-corrosion and decorative needs of the use environment, a variety of surface treatment methods are provided to adapt to different scenarios:
Hot-rolled original color: Anti-rust oil is applied on the surface, with low cost, suitable for ordinary industrial environment, and regular anti-rust maintenance is required
Hot-dip galvanizing: Divided into Z80, Z120, Z160 and other specifications, galvanized layer thickness ≥85μm, excellent anti-corrosion performance, suitable for outdoor and humid environments, long service life
Electro-galvanizing: SECC material, bright and beautiful surface, moderate anti-corrosion performance, suitable for indoor decoration and light-duty components
Stainless steel polishing: Divided into 2B (matte), BA (mirror), mirror polishing, etc., suitable for food, medical, high-end decoration scenarios, easy to clean and corrosion-resistant
9. Application Scenarios
With its anti-slip, wear-resistant, decorative and other characteristics, checkered steel plate is widely used in many industries. The specific scenarios are as follows:
Industrial field: Workshop floors, equipment operation platforms, stair treads, trench covers, mining equipment liners
Transportation field: Ship decks, truck/semi-trailer bottom plates, container floors, subway passage anti-slip plates
Construction field: Pedestrian walkways, stair pedals, exterior wall decoration, anti-slip ramps, balcony railings
Special field: Food processing countertops, chemical anti-corrosion platforms, hospital anti-slip floors, outdoor landscape components
10. Packaging and Delivery
1. Packaging Method
Standardized packaging is adopted to prevent scratches and rust during transportation and ensure the product is intact:
Conventional packaging: Bundled packaging (each bundle weighs 2–5 tons, adjusted according to thickness), wrapped with moisture-proof film + anti-rust paper on the outside
Marking requirements: Tags are hung at both ends of each bundle, indicating product material, specification, pattern type, batch number and production date
Special packaging: Custom waterproof and scratch-proof packaging on demand (suitable for high-end decoration and export products)
2. Delivery Cycle
Conventional specifications (in stock): Delivery cycle is 5–7 days.
Customized specifications (special materials, dimensions, patterns): Delivery cycle is 7–15 days, which is adjusted according to the difficulty of customization
Processing services: Custom cutting, punching, bending, welding and other processing services can be provided, and the processing cycle is included in the delivery cycle simultaneously.
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