black checkered steel plate

Detailed Introduction

Tianjin Shunchen Industrial is a leading steel product manufacturer with 12 years of export experience, specializing in hot-rolled structural and floor steel products. Our Tianjin production base is equipped with 2 hot-rolled checkered plate lines, 3 cut-to-length shearing lines and a full set of pattern height and flatness testing equipment, supported by a national-level material testing laboratory. We focus on R&D and production of black checkered steel plates, optimized for anti-slip safety and cost reduction in construction, warehousing and manufacturing scenarios.

Unlike ordinary plain steel sheets that require customers to weld or bolt separate anti-slip bars onto the surface, our products are embossed directly on the hot rolling line, so the pattern and the base plate form one solid body with no joints, no loosening and no extra labor cost. Our quality control engineer Sun Tao, with 10 years of experience in steel plate inspection, personally supervises full-process inspection of each batch, ensuring pattern height deviation ≤±0.15mm and a uniform black surface with no scratches, roll marks or exposed substrate. All products comply with GB, ASTM, EN and JIS standards, and can provide complete mill test certificates (MTC EN 10204 3.1) and third-party SGS inspection reports.

Real-world Performance Testing

1. Anti-slip Performance Verification Test

Test Standard: GB/T 3277-2015, ASTM A786/A786M

Test Samples: Plain carbon steel plate with welded anti-slip bars, Tianjin Shunchen hot-rolled black checkered plate

Key Findings:

Welded anti-slip plate: Friction coefficient 0.42 on dry surface and 0.28 on wet surface, 3 of 50 test points showed bar loosening after 6 months in service

Our black checkered plate: Friction coefficient 0.68 dry and 0.51 wet, 60% higher anti-slip safety, 100% pattern integrity after 12 months in service

2. Pattern Height & Surface Uniformity Test

Test Items: Pattern height measurement, black surface color difference and adhesion check

Test Results:

Pattern height: 0.6-1.2mm uniform across the whole plate, deviation ≤±0.15mm, no missing or flattened pattern

Surface: Consistent black mill finish, color difference ΔE ≤1.5 between batches, no rust spots after 90 days of indoor storage

3. Load Bearing & Installation Efficiency Test

Test Scenario: Simulated workshop platform flooring, 200 pieces of 1250×2500mm plates with 4.0mm base thickness

Test Results:

Welded anti-slip plate: 26 working hours for surface preparation, welding and inspection

Using our black checkered plate for direct laying and fastening: 7 working hours in total, installation efficiency increased by 73%

Real-world User Scenarios & Verified Cases

Case 1: Guangdong Logistics Warehouse Platform Project

Industry: Warehousing and logistics

Problem: The platform floor of a 12,000 m² warehouse used plain steel plates. Forklift traffic made the surface slippery in humid weather, and welded anti-slip bars cracked at the weld seams and blocked pallet movement.

Solution: Adopt our Q235B black checkered steel plate (4.0mm base thickness), diamond pattern, 1250×2500mm standard size, cut to project drawings, with oiled black surface for indoor humidity.

Result: Surface friction coefficient increased from 0.35 to 0.65, slip incidents during forklift operation dropped to zero, installation time shortened by 70%, and overall flooring cost reduced by 32%. Cumulative purchase volume reaches 860 tons, with 4 years of ongoing cooperation.

Case 2: Shandong Trailer Body Floor Project

Industry: Special vehicle manufacturing

Problem: Trailer floors used plain steel plates with manually welded anti-slip strips. The strips deformed under 8-ton axle loads, causing floor fatigue cracks and a 7% after-sales rework rate.

Solution: Adopt our Q355B black checkered steel plate (5.0mm base thickness), lentil pattern, 1500×6000mm, cut strictly according to trailer floor drawings, with straightness tolerance ≤2mm/m.

Result: Floor deformation rate dropped from 7% to 0.6%, body weight reduced by 4%, production efficiency increased by 38%, and processing cost per trailer reduced by 25%. Annual purchase volume reaches 520 tons.

Authentic Customer Reviews

"We have supplied Guangdong warehouse projects with Tianjin Shunchen's black checkered plates for 4 years. The pattern is even, the black surface stays clean and there is no rust even after long storage in humid weather. Installation is much faster than welding anti-slip bars, and delivery is always on time." —— Chen Weidong, Purchasing Manager, Guangdong Zhonglian Logistics Equipment Co., Ltd.

"For trailer floors, pattern height and flatness directly determine the service life of the body. Their black checkered plates have stable pattern height and good straightness, which has significantly reduced our after-sales rework and shortened the production cycle." —— Liu Jianguo, Production Director, Shandong Hengyuan Special Vehicle Manufacturing Co., Ltd.

Verified Product Parameters

(1) General Execution StandardsStandard TypeStandard NumberApplicable Regions & IndustriesChinese StandardGB/T 3277-2015, GB/T 700-2006China, Southeast AsiaAmerican StandardASTM A786/A786M, ASTM A36North America, Middle EastEuropean StandardEN 10025-2, EN 10051Europe, AfricaJapanese StandardJIS G 3101 SS400, JIS G 3193Asia, Japan

(2) Core Technical ParametersParameter CategorySpecific IndicatorsMaterialsQ235B, Q355B; A36, A572 Gr.50; S235JR, S355JR; SS400Base Plate Thickness2.0mm - 8.0mmPlate SizeWidth 1000-2000mm, Length 2000-12000mm (customizable)Pattern TypeDiamond (checker), lentil (teardrop), round bean (customizable)Pattern Height0.6mm - 1.2mm, deviation ≤±0.15mmSurface FinishBlack mill finish, oiled black, black anti-rust primer, black powder coating (customizable)Thickness Tolerance±0.15mm - ±0.40mm (varies by thickness range)Cutting ServiceShear cutting, laser cutting, cut-to-length (customizable)

(3) Chemical Composition (wt%)MaterialCSiMnPSQ235B / A36≤0.20≤0.350.30-0.65≤0.045≤0.045Q355B / S355JR≤0.24≤0.551.00-1.60≤0.035≤0.035

(4) Mechanical PropertiesMaterialTensile Strength (MPa)Yield Strength (MPa)Elongation (%)Q235B375-500≥235≥26Q355B470-630≥355≥21A36400-550≥250≥20

Core Advantages

·Hot-rolled One-piece Pattern, No Welding, No Loosening: The pattern is embossed on the rolling line and forms one solid body with the base plate, eliminating welded anti-slip bars, weld seam cracks and bar loosening.

Uniform Black Surface, Ready for Use: Stable black mill finish with optional oiling or black primer, no scratches, roll marks or exposed substrate, suitable for indoor and sheltered outdoor use.

Reliable Anti-slip Safety: Pattern height 0.6-1.2mm with a stable friction coefficient, 60% higher than plain plate with welded strips, reducing slip risk on platforms, stairs and vehicle floors.

Full Thickness Range and Custom Cutting: Base thickness 2.0-8.0mm, diamond, lentil and round bean patterns, cut-to-length and laser cutting according to drawings, reducing on-site waste and labor.

Mill Direct Supply, Fast Batch Delivery: 3,000 tons of standard stock, bulk orders shipped within 3-7 days, stable quality between batches for long-term projects.

Suitable For

·  Industrial workshop platforms, mezzanine floors and walking passages

·  Truck, trailer and container body floors and loading ramps

·  Stair treads, step plates and escalator inspection covers

·  Port, ship deck and offshore platform anti-slip flooring

·  Municipal maintenance covers, drainage trench covers and manhole covers

·  Agricultural machinery, gym flooring and temporary site access roads

Why Choose Tianjin Shunchen?

Looking for a reliable black checkered steel plate supplier that can improve anti-slip safety and reduce installation cost? Choose Tianjin Shunchen Industrial — products verified by real warehouse and vehicle manufacturing projects, produced by a professional Chinese steel mill with 12 years of export experience.

We maintain 3,000 tons of standard black checkered plate stock, supporting fast cut-to-length processing and delivery within 3-7 days. Our technical team can recommend material grade, base thickness, pattern type and surface treatment according to your application and drawings. We adhere to the factory direct sales model, ensuring competitive prices and stable batch quality. Contact us now to get a free quote and sample!

Real Product & Shipment Gallery

Production & Quality Inspection

·  2 hot-rolled checkered plate production lines

·  Pattern height gauge and flatness testing platform (100% dimensional sampling inspection)

·  Salt spray testing chamber (surface and coating verification)

·  Universal material mechanical property testing machine

Product Display

·  Q235B black checkered plate (3.0mm base thickness, diamond pattern)

·  Q355B heavy-duty black checkered plate (5.0mm base thickness, lentil pattern)

·  Oiled black checkered plate for humid warehouse flooring

·  Custom cut-to-size black checkered sheet (laser cutting, 1250×2500mm)

Shipment & Packaging

·  Standard export packaging (wooden pallets, waterproof wrapping, steel strapping fixation)

·  Custom packaging with customer logo available

·  Container loading standard: 20ft container ≈25 tons; 40ft container ≈50 tons

·  Complete shipment documents (bill of lading, commercial invoice, MTC, dimension inspection report)

Customer Application

·  Guangdong logistics warehouse platform flooring project

·  Shandong trailer body floor project

·  Zhejiang municipal maintenance cover project

·  Tianjin workshop mezzanine flooring project

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Related Categories

Steel Angle, Steel Channel, I-Beam, H-Beam, Steel Pipe, Galvanized Square Pipe, Flat Bar, Round Bar, Steel Grating, Hot Rolled Steel Plate, Galvanized Checkered Plate