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Help CenterSteel Sheet & Plate & Checkered Steel Plate，Q235B、Q355B、Q235NH、Q355NH
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Steel Sheet & Plate & Checkered Steel Plate，Q235B、Q355B、Q235NH、Q355NHNegotiableMOQ: 5 Metric Tons -
Steel Sheet & Plate & Checkered Steel Plate，Q235B、Q355B、Q235NH、Q355NHNegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Color Coated Coil，PE、SMP、HDP、PVDFNegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Color Coated Coil，PE、SMP、HDP、PVDFNegotiableMOQ: 5 Metric Tons
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Steel Coil & Strip & Color Coated Coil，PE、SMP、HDP、PVDFNegotiableMOQ: 5 Metric Tons
I. Product Overview
Checkered steel plate (also known as anti-slip plate or embossed plate) is a metal plate with regular raised patterns rolled on the surface of carbon structural steel or low-alloy high-strength steel base plate through hot rolling or stamping process. Its core functions are anti-slip, load-bearing, wear-resistant, decorative and drainage, which is widely used in industrial platforms, stair steps, ship decks, workshop floors, trench covers, decorative curtain walls and other scenarios. The product adopts an integrated forming process, where the patterns are closely combined with the base plate without the risk of falling off. Compared with ordinary flat plates, it not only improves the use safety, but also optimizes the material dosage under the premise of ensuring structural strength, adapting to various complex working conditions. It can customize the material, specification and pattern type according to actual needs, meeting the personalized use needs of industrial production, building construction, municipal construction and other fields.
II. Executive Standards
National Standard: GB/T 33974-2017 (replacing the old version GB/T 3277-1991)
Material Standard: GB/T 700 (carbon steel), GB/T 712 (hull steel), GB/T 4171 (weathering steel)
III. Material Classification and Chemical Composition
Commonly used materials are as follows (customizable on demand):
Material |
Type |
Main Chemical Composition (%) |
Characteristics and Applications |
Q235B |
Carbon Structural Steel |
C≤0.20, Si≤0.35, Mn≤1.40, S≤0.045, P≤0.045 |
Low cost, good plasticity, general scenarios |
Q355B |
Low-Alloy High-Strength Steel |
C≤0.20, Si≤0.55, Mn≤1.70, S≤0.045, P≤0.045 |
High strength, strong load-bearing capacity, heavy-duty industrial platforms |
Q235NH/Q355NH |
Weathering Steel |
Contains weather-resistant elements such as Cu, Cr, Ni |
Corrosion resistance, outdoor/humid environments |
IV. Pattern Types and Characteristics (3 Main National Standard Types)
Pattern Type |
Code |
Shape |
Core Advantages |
Applicable Scenarios |
Diamond Pattern |
L |
Continuous Diamond Protrusions |
Good drainage, beautiful appearance, general purpose |
Stairs, platforms, walkways |
Lentil Pattern |
B |
Oval Protrusions |
Strongest anti-slip performance, wear-resistant |
Humid/oily/heavy-duty (shipyards, workshops) |
Round Bean Pattern |
Y |
Round Protrusions |
Soft touch, not easy to get shoes stuck |
Shopping malls, public passages, ship decks |
V. Specification and Size (Base Plate Thickness, Pattern Height Not Included)
Thickness: 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0, 8.0mm (customizable 1.4–16mm)
Width: 600–1800mm (commonly used 1250/1500mm, in 50mm increments)
Length: 2000–12000mm (in 100mm increments, customizable length)
Theoretical Weight (kg/㎡, Lentil Pattern Reference)
Thickness (mm) |
2.5 |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
6.0 |
8.0 |
Weight (kg/㎡) |
22.6 |
26.6 |
30.5 |
34.4 |
38.3 |
42.2 |
50.1 |
66.8 |
VI. Mechanical Properties (Room Temperature, Q235B/Q355B)
Material |
Yield Strength ReH (MPa) |
Tensile Strength Rm (MPa) |
Elongation After Fracture A (%) |
Hardness HB |
Q235B |
≥235 |
370–500 |
≥26 |
137 |
Q355B |
≥355 |
470–630 |
≥21 |
180 |
VII. Surface Treatment
Hot-Rolled Original Color: Factory state, anti-rust requires painting/galvanizing
Hot-Dip Galvanizing: Zinc layer ≥80μm, strong anti-rust, outdoor/humid environments
Electro-Galvanizing: Thin plate (2–3mm), good decorativeness, indoor use
Spray Painting/Anti-Corrosion Coating: Customizable color and anti-corrosion grade
VIII. Product Features
Anti-Slip and Safe: The raised patterns increase friction, with a dry anti-slip coefficient ≥0.6 and a wet anti-slip coefficient ≥0.4, preventing personnel from slipping and equipment from shifting.
High Strength and Load-Bearing: The base plate has stable mechanical properties, and Q355B can bear 2–5MPa pressure, suitable for heavy-duty industrial platforms.
Wear-Resistant and Durable: The patterns are integrally hot-rolled, not easy to fall off, resistant to stepping and rolling, and have a long service life.
Drainage and Easy Cleaning: The gaps between the patterns form drainage channels, reducing water and dust accumulation, and making cleaning and maintenance simple.
Strong Decorativeness: The patterns are regular and beautiful, which can replace ordinary flat plates for decorative scenarios such as exterior walls, storefronts, and cabinet panels.
Economical and Material-Saving: Compared with flat plates of the same strength, it saves about 10%–15% of materials, reducing the comprehensive cost.
IX. Application Scope
Industry: Workshop floors, equipment platforms, stair steps, trench covers, forklift channels
Construction: Steel structure stairs, roof anti-slip, curtain wall decoration, walkway pedals
Transportation: Ship decks, vehicle pedals, bridge walkways, port machinery platforms
Municipal/Commercial: Shopping mall floors, public passages, landscape components, sewer covers
X. Packaging, Marking and Delivery
Packaging: Bundled packaging, 2–5 tons per bundle, with wooden squares padded at the bottom and film coated on the surface to prevent scratches
Marking: Marked with material, specification, pattern type, standard number, batch number and factory mark
Delivery Time: 5–7 days (spot for conventional specifications, 7–15 days for special materials/customized sizes)
Quality Certificate: Provide factory certificate of conformity, material list and mechanical performance report.
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