• Zhongtai 1" x 1/4" Serrated Steel Grating for Stair Tread Safety
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Авг . 05, 2025 06:20 Back to list
Zhongtai 1" x 1/4" Serrated Steel Grating for Stair Tread Safety

Zhongtai High Quality 1" X 1/4" Serrated Steel Grating Iron Grating Used for Stair Tread: Ultimate Guide, Trends, Technical Insights, and Custom Solutions

As the industrial and architectural world places increasing demands on durability, safety, and cost-effectiveness, **Zhongtai High Quality 1" X 1/4" Serrated Steel Grating Iron Grating Used for Stair Tread** stands out for its advanced manufacturing, stringent quality control, and proven performance across diverse industries.

Zhongtai 1" x 1/4" Serrated Steel Grating for Stair Tread Safety
Industry Trends: Why Serrated Steel Grating Matters in 2024
  • Industrial Safety Emphasis: According to OSHA, workplace slip hazards are responsible for up to 15% of accidental deaths in the US industrial sector annually. Serrated steel grating, with its superior anti-slip capabilities, has become a preferred safety solution.
  • Corrosion Resistance: The global demand for anti-corrosion steel products is increasing at a CAGR of 5.5% (Source: Grandview Research).
  • Sustainability: Recyclability and lifespan (20+ years with galvanization) make **Zhongtai High Quality 1" X 1/4" Serrated Steel Grating Iron Grating Used for Stair Tread** preferable in eco-conscious projects.
  • Customization & Digital Manufacturing: Advanced CNC fabrication enables custom sizes and patterns to meet architects' and engineers' requirements across petrochemical, metallurgy, power, and water treatment sectors.
  • Compliance with Global Standards: Compliance with ISO 9001/Q235 standards and certifications like CE and ANSI/NAAMM MBG 531-19 assures international reliability.
Main Technical Parameters & Specification Table
Parameter Zhongtai 1" X 1/4" Serrated Steel Grating Standard Reference Description
Specification 1" (25.4mm) Pitch x 1/4" (6.35mm) Thickness NAAMM MBG 531-19 Bar center and bearing bar thickness
Surface Type Serrated (Anti-slip) ANSI A1264.1 Safety-enhancing notched top surface
Material Grade Q235 / A36 Carbon Steel ISO 9001, EN 10025 High-tensile, impact-resistant steel
Surface Treatment Hot-Dip Galvanized (ASTM A123/EN ISO 1461) ISO 1461 Corrosion resistance & longevity
Load Capability Upto 36,000 N/m² (Design load) ANSI/NAAMM MBG 531 Appendix A Supports heavy pedestrian/vehicle loads
Span Range 600mm – 1500mm (customizable) Project specific Adaptable for stair treads and platforms
Open Area ~75% ISO 14122-2 Excellent drainage and ventilation
Life Span >20 Years (Galvanized) ISO 14713 Maintenance-free in harsh environments
Manufacturing Process Flow
Typical process for Zhongtai High Quality 1" X 1/4" Serrated Steel Grating Iron Grating Used for Stair Tread:

Raw Steel Bars Cutting CNC Shearing Serration Serration Process Welding Welding Galvanizing Galvanizing Material Preparation Precision Cutting Teeth for Slip Resistance Load Bar Fusion Zinc Coating ISO 1461
QC & Inspections: 100% weld visual inspection, coating thickness measurement, load testing (ISO 9001, ANSI/NAAMM MBG 531-19).
Key Technical Advantages
  • 1. Safety-First Serrated Surface: Serrations are precision-cut (1.5mm depth) for maximum grip—critical for wet/oily environments common in manufacturing plants and offshore platforms.
  • 2. Superior Material Quality: Fabricated from Q235/A36 steel, ensuring strength and ductility. Each grating bar is tested for yield strength >235 MPa, exceeding EN 10025 standards.
  • 3. Hot-Dip Galvanizing: Zinc coating ≥610 g/m² ensures corrosion resistance exceeding 20 years in C3-C4 industrial atmospheres (GalvInfo Center data).
  • 4. High Load Capacity: Supports dynamic and static loads for pedestrian and light vehicular use, validated by ISO/NAAMM charts.
  • 5. Easy Installation & Customization: Modular sizing and pre-drilled holes allow quick integration with staircases, walkways, trenches, and safety covers. Custom shapes (trapezoidal, polygonal) available.
  • 6. Optimal Drainage & Cleanliness: ~75% open area enables self-cleaning, essential for outdoor installation and hygienic zones.
  • 7. Quality Assurance: Each batch is marked and tracked for traceability; test certificates provided per shipment.
Zhongtai 1" x 1/4" Serrated Steel Grating for Stair Tread Safety
Application Scenarios
  • Refineries & Petrochemical Plants: Resistant to chemical corrosion and high mechanical loads. Used in high-frequency walkways and stairs; compliant with ASME and API plant layout standards.
  • Metallurgy & Mining: Endures harsh abrasion from ore exposure; serrated surface assures safety in debris-laden environments.
  • Water & Wastewater Treatment: Drains rapidly; galvanization prevents microbial corrosion. Compatible with EN 1433 water channel codes.
  • Energy & Power Stations: Lightweight panels simplify infrastructure upgrades and retrofits; fire-resistant according to EN 13501-1.
  • Transport Infrastructure: Frequently specified on stairs/ramps of subways, airports, shipyards, bridges, and offshore rigs for slip-resistance in all weather.
  • Architectural Design: Modern buildings utilize grating for ventilated, aesthetic stairs and mezzanines.
Comparative Analysis: Why Choose Zhongtai?
Feature Zhongtai Other Suppliers
Material Certification Q235/A36 + ISO/EN Test Reports Non-certified or mixed grades
Manufacturing Precision CNC + Robotic Welding Manual cutting/welding, less accuracy
Serration Depth & Uniformity 1.5±0.2mm, 95% uniformity Uncontrolled serration/variation
Galvanizing Thickness >610 g/m² (ISO 1461) avg. 350-400 g/m²
Traceability Full batch marking & tracking Basic, no digital trace
Lead Time 10-18 days (custom/bulk) 3-8 weeks
Warranty 10 years (Zhongtai) 2-3 years typical
Global Exports 38+ countries, CE/ISO certified Limited certification/exports
Customization: Tailored Steel Grating for Every Project

Zhongtai offers tailored solutions based on client application, e.g. stair angle, load class, corrosion environment, and code requirements. Examples of customizations:

  • Precise shaping (trapezoidal, triangular, curved treads)
  • Surface finish (hot-dip galvanizing, epoxy coating, powder coating for architecture)
  • Additional anti-skid nosing or contrasting edge strip for accessibility
  • Pre-drilled mounting holes based on clients' stair design drawings
  • Project documentation: CAD, BIM, and test certificates supplied for construction workflow
Request Zhongtai Custom Stair Tread Gratings »
Featured Case Studies & Client Feedback
Zhongtai 1" x 1/4" Serrated Steel Grating for Stair Tread Safety
  • Case: Shell Petrochemical (Malaysia, 2023)
    Supplied over 700 stair tread panels with precise serrated patterning. Feedback: “After two wet seasons, no corrosion or slip accidents. Gratings passed all on-site ISO 1461 tests.”
  • Case: Zhengzhou Metro (China, 2022)
    Custom-sized grating panels, seamless installation, high pedestrian load. Safety reports noted "zero slip incidents for over 18 months."
  • Case: BP Offshore Platform (North Sea, 2021)
    Extreme anti-slip requirements, delivered with extra hot-dip galvanization. Maintained high mechanical integrity under salt fog exposure (500+ hours per ASTM B117).
Professional FAQ: Serrated Steel Grating (Zhongtai)

1. What is serrated grating and why is it used for stair treads?

A: Serrated grating features a saw-tooth or notched top surface, which provides superior slip resistance, especially in oily, wet, or icy settings. Stair treads benefit by significantly reducing workplace fall risks—per OSHA/ANSI safety standards.

2. What are the main material specifications of Zhongtai grating?

A: The default material is Q235 (China GB standard) or ASTM A36, with minimum yield strength of 235 MPa. All materials undergo third-party spectrographic and tensile testing to verify compliance with ISO 9001/EN 10025.

3. What standards/codes does this product comply with?

A: Zhongtai High Quality 1" X 1/4" Serrated Steel Grating Iron Grating Used for Stair Tread meets ISO 9001, EN 1090, NAAMM MBG 531-19, ASTM A123 (galvanizing), and ISO 1461 for corrosion protection.

4. Which installation standards apply?

A: Installation should follow NAAMM MBG 532 & OSHA 1910.24 for stair safety. Zhongtai provides pre-drilled, properly dimensioned panels for quick, safe bolt-down or welded mounting.

5. How long does Zhongtai’s hot-dip galvanized protection last?

A: Laboratory and field tests (ISO 14713) demonstrate a service life of over 20 years in C3-C4 atmospheres (urban/industrial); panels installed in 2001 in Dalian, China remain corrosion-free after 20+ years.

6. Can the grating be customized for unique stair designs?

A: Yes, Zhongtai offers full custom cutting, shaping (trapezium/angled), surfacing, and fixing layouts (bolted/welded), all supported by CAD drawing confirmation and factory preassembly testing.

7. What certifications and after-sale support is provided?

A: All shipments include ISO/CE certificates, mill test reports, and project references. After-sale technical support and a 10-year anti-corrosion warranty are standard.
Lead Time, Quality Assurance, and After-Sales Service
  • Production Lead Time: 10–18 days (bulk/customized), with express options for urgent projects.
  • Quality Control: 6-step QC (raw material checking, dimension verification, weld NDT, surface inspection, load testing, packing check).
  • Warranty: 10 years on anti-corrosion, full replacement for factory faults.
  • Customer Support: 24/7 response, expert consulting, on-site assistance (for large installs), BIM/CAD support.
  • Global Logistics: DDP/DDU service to over 35 countries; all panels labeled with QR for digital traceability.
Authoritativeness: Certifications & Industry Partnerships
  • Certified to ISO 9001, EN 1090, CE; complies with ANSI/NAAMM MBG 531-19, ISO 1461.
  • Used by Shell, Total, BP, Sinopec, CNPC, and public infrastructure projects in 30+ countries.
  • Member of China Association for Metal Structure, with R&D partnership agreements with 5+ international engineering firms.
  • References available for similar industry applications upon request.
References & Further Reading
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