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Help CenterSteel Sheet & Plate & Checkered Plate，Q235B、Q215、Q355B/Q345B、A36、A572Gr50、S235J、S355J
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1. Product Definition
Checkered Plate, also known as patterned steel plate or anti-slip steel plate, is a special anti-slip profile rolled by hot rolling process with regular raised patterns on the surface. The mainstream pattern is lentil shape, followed by diamond and round bean shapes. Featuring flat surface, full and regular patterns, high strength, anti-slip wear resistance and stable structure, the plate can be directly used for anti-slip load-bearing structures without complicated surface treatment. Our factory mainly supplies Carbon Steel Checkered Plate and Low Alloy Checkered Plate with flat surface, no cracks, uniform patterns and excellent load-bearing performance. Widely applied in anti-slip and load-bearing scenarios such as industrial workshops, equipment platforms, municipal engineering, transportation vehicles and steel structure projects, it is the most versatile anti-slip steel material in the industrial field.
2. Core Product Advantages
Excellent Anti-slip Performance and High Safety: The three-dimensional raised surface patterns provide high friction, delivering outstanding anti-slip effect under dry, humid and slightly waterlogged conditions. It effectively prevents slipping during personnel walking and equipment operation, greatly improving the safety factor of platforms, walkways and stairs.
High Strength and Anti-deformation Load-bearing Capacity: Rolled from high-quality hot-rolled carbon steel and low alloy materials, the steel features dense internal structure, good toughness, strong impact and compression resistance, stable overall load-bearing capacity. It is not easy to bend, dent or fracture under long-term pressure with high structural safety.
Regular Appearance, Aesthetic and Durable: With evenly arranged three-dimensional patterns and neat surface, the plate presents a regular and premium appearance. It can be exposed for direct use without secondary decoration, combining practicality and industrial aesthetics. It is wear-resistant, tread-resistant and long-lasting in service.
Flexible Processing and Wide Adaptability: Carbon Steel Checkered Plate and Low Alloy Checkered Plate support free cutting, bending, punching, welding and splicing, adapting to fixed-size blanking, special-shaped processing and on-site installation. The flat back ensures perfect fitting with stable bolt and welding fixation.
High Cost Performance and Low Maintenance: With sufficient raw materials, mature technology and mass production capacity, the product is economical and affordable. The surface is wear-resistant and not prone to peeling under conventional working conditions, requiring minimal later maintenance and no frequent renovation, which reduces the overall project cost.
3. Common Material Grades and Applicable Working Conditions
Ordinary Carbon Steel Checkered Plate (Q235B, Q215): As the mainstream universal material in the market, it features pure texture, good plasticity and excellent weldability with extremely high cost performance. It is widely used for workshop stair treads, operating platforms, factory walkways, municipal anti-slip ramps, truck carriage floors, temporary construction platforms and ordinary steel structure anti-slip load-bearing scenarios, serving as the most widely used Carbon Steel Checkered Plate in engineering projects.
High-strength Low Alloy Checkered Plate (Q355B/Q345B): The high-strength low alloy material surpasses ordinary carbon steel in strength, toughness and impact resistance, with superior load-bearing capacity, fatigue resistance and deformation resistance. Designed specifically for heavy-load working conditions, it is applicable to heavy-duty scenarios such as load-bearing platforms of large industrial workshops, port walkways, equipment base bearing plates, construction machinery pedals and heavy equipment operating platforms as a professional Low Alloy Checkered Plate.
International Standard Materials (A36, A572Gr50, S235J, S355J): American and European standard universal structural steel checkered plates feature precise dimensional tolerance and stable mechanical properties, suitable for foreign trade export, international projects and supporting foreign-funded equipment standardized projects.
4. Specification Parameters
Thickness Range: 2.0mm–12.0mm. Regular best-selling thicknesses include 2.5mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm and 8.0mm with uniform and full pattern height complying with national standard tolerance requirements.
Width Range: Conventional standard widths of 1000mm, 1250mm and 1500mm, with customized maximum 2000mm wide plates. The plate surface is flat without waves, warpage, delamination or inclusions.
Length Range: 2000mm–12000mm with regular fixed length of 6000mm. Custom flattening, free cutting, special-shaped cutting and punching are supported to meet various engineering blanking requirements.
Pattern Type: Mainstream lentil pattern (universal engineering type), customizable diamond and round bean patterns with uniform arrangement and consistent anti-slip performance.
Delivery Status: Hot rolled delivery with surface impurity removal and customizable anti-rust oil coating. The plates feature straight shape and precise dimensions with full-specification stock of Carbon Steel Checkered Plate and Low Alloy Checkered Plate.
5. Production Process
High-quality steel billet feeding → High-temperature uniform heating and austenitization → Rough rolling shaping → Finish rolling pattern forming → Precise temperature-controlled cooling → Mechanical leveling → Surface cleaning and impurity removal → Fixed-length shearing → Dimensional accuracy re-inspection → Surface appearance quality inspection → Anti-rust oil treatment → Inkjet marking → Packaging and warehousing. Adopting fully automatic mature rolling technology, we strictly control pattern height, density and plate flatness to ensure uniform performance, standard shape and zero quality defects of every Carbon Steel Checkered Plate and Low Alloy Checkered Plate.
6. Execution Standards
GB/T 3277-2017 Hot Rolled Checkered Steel Plates and Strips (Core National Standard)
YB/T 4159-2007 Dimension, Shape, Weight and Allowable Deviation of Checkered Steel Plates and Strips
ASTM A786 Standard Specification for Hot-Rolled Carbon Steel Floor Plates
EN 10025 European General Standard for Structural Steel
7. Main Applications
Steel Structure Workshop Engineering: Widely used for workshop stair treads, factory operating platforms, steel structure walkways, anti-slip floors and equipment maintenance platforms.Carbon Steel Checkered Plate features economical cost, durability and convenient construction.
Industrial Heavy-duty Equipment Field: Applied for large machinery operating pedals, equipment load-bearing bases, production line anti-slip platforms and hoisting equipment walkways. Low Alloy Checkered Plate is preferred for heavy-load scenarios due to its strong deformation resistance and high bearing capacity.
Transportation and Logistics Industry: Suitable for anti-slip floors of trucks and trailers, container anti-slip gaskets, logistics warehousing platforms and loading & unloading anti-slip ramps with excellent wear resistance and compression resistance for long service life.
Port and Municipal Engineering: Used for port walkways, trestle pedals, municipal anti-slip stairs, trench cover pedals and outdoor pedestrian walkways with stable anti-slip performance, adapting to outdoor open-air working conditions.
Shipbuilding and Heavy Industry Supporting: Applied for ship decks, cabin walkways and heavy equipment protection platforms. The plates are wear-resistant, anti-slip and structurally stable, suitable for humid and high-frequency treading environments.
8. Delivery Cycle
Conventional In-stock Checkered Plates: Q235B and Q355B regular-specification Carbon Steel Checkered Plate and Low Alloy Checkered Plate are sufficiently stocked and can be delivered within 3–5 working days after payment confirmation.
Conventional Cutting and Processing Orders: Orders requiring fixed-size flattening, free cutting, special-shaped cutting and precision punching will be processed within 5–7 working days.
Extra-thick/Wide Custom Orders: Custom products including plates above 10mm thickness, 2000mm ultra-wide plates and non-standard fixed-size plates require 7–10 working days for production and processing.
Foreign Trade Standard Orders: American and European standard checkered plates will be delivered within 7–15 working days according to production schedule and inventory.
Urgent Orders: In-stock products can be loaded and delivered on the same day, and processing orders can be prioritized for production to shorten the delivery cycle.
9. Quality Inspection
All factory Carbon Steel Checkered Plate and Low Alloy Checkered Plate undergo a complete set of strict factory inspections, including chemical composition analysis, tensile and bending mechanical tests, impact toughness tests, pattern height detection, plate flatness verification, surface defect screening and dimensional tolerance recheck. Products with cracks, peeling, uneven thickness, incomplete patterns and plate deformation are strictly prohibited from delivery. Complete quality inspection reports and material certificates are provided for each batch with full quality traceability, fully meeting the standards for project acceptance and third-party testing.
10. Packaging Method
Conventional Industrial Packaging: The plate surface is coated with anti-rust oil and covered with protective film with reinforced corner protection. The whole plate is wrapped with waterproof and moisture-proof layers and fixed with multiple steel belts to prevent collision, surface scratches and moisture rust during transportation, ensuring intact delivery of finished products.
High-end Export Packaging: Premium plates are packed with solid wooden pallets, shockproof and moisture-proof encapsulation and full corner protection. The firm and collision-resistant packaging adapts to long-distance ocean transportation without deformation or rust, complying with foreign trade export inspection standards.
11. Storage and Usage Precautions
Storage Environment Requirements: Checkered plates must be stored in dry, ventilated and rain-proof indoor warehouses. Long-term outdoor stacking, rainwater accumulation, sunlight exposure and humid environments are strictly prohibited to prevent surface oxidation, rusting and coating peeling.
Standard Stacking Rules: Stack plates separately by material, thickness and specification. Keep the plates elevated off the ground, store away from acid, alkali and other corrosive substances, and control the stacking height reasonably to avoid extrusion deformation and surface abrasion.
Processing Protection Requirements: Avoid scratching the patterned surface and steel plate body with sharp and hard tools during cutting, bending and welding processing. Reasonable temperature control is required during thermal processing such as welding to prevent plate deformation and structural performance changes.
Daily Maintenance for Outdoor Use: For checkered plates applied in outdoor environments, regular anti-rust maintenance is recommended. Scientific maintenance can effectively extend the service life and maintain stable anti-slip performance and load-bearing capacity for a long time.
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