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1. Project Overview
This project involved the supply of hot-dip galvanized steel grating panels for an industrial walkway system in a heavy-duty manufacturing facility. The client required a durable, anti-slip, and low-maintenance flooring solution for elevated maintenance platforms and equipment access walkways.
The installation environment includes continuous mechanical operation, oil exposure, and frequent personnel movement, requiring high safety and corrosion resistance performance.
2. Project Requirements
The customer’s main technical and functional requirements included:
1.High load-bearing capacity for industrial personnel and light equipment
2.Excellent anti-slip performance in wet and oily conditions
3.Long service life in corrosive industrial environments
4.Easy installation and modular replacement design
5.Compliance with industrial safety standards
3. Product Specification
The following steel grating specifications were provided:
| Item | Specification |
|---|---|
| Material | Q235 / Q345 Carbon Steel |
| Type | Welded Steel Grating |
| Bearing Bar Size | 25×3 mm / 30×3 mm |
| Bearing Bar Pitch | 30 mm |
| Cross Bar Pitch | 100 mm |
| Surface Treatment | Hot-Dip Galvanized (ISO 1461 standard) |
| Application | Industrial walkway / maintenance platform |
4. Application Scenario
The steel grating panels were installed in multiple areas of the facility:
1.Elevated maintenance walkways
2.Equipment inspection platforms
3.Access bridges between production units
4.Safety corridors in mechanical zones
After installation, the system improved both operational safety and maintenance efficiency.
5. Project Results
After project completion, the client reported the following improvements:
Improved worker safety due to anti-slip surface design
Reduced maintenance costs compared to painted steel flooring
Faster installation compared to concrete platforms
Excellent corrosion resistance in humid industrial conditions
The modular structure also allows future expansion without major structural changes.
6. Frequently Asked Questions (FAQ)
Q1: What is the lifespan of hot-dip galvanized steel grating?
A1: In industrial environments, it can typically last 15–30 years depending on corrosion conditions.
Q2: Can steel grating support heavy industrial equipment?
A2: Yes, heavy-duty grating can be designed with thicker bearing bars and closer spacing for higher load capacity.
Q3: Is serrated steel grating necessary for walkways?
A3: Serrated surfaces are recommended for wet, oily, or outdoor environments to improve slip resistance.
Q4: Can steel grating be customized?
A4: Yes, it can be customized in size, load capacity, bar spacing, and surface treatment.
Q5: What surface treatment is most commonly used?
A5: Hot-dip galvanizing is the most widely used due to its strong corrosion protection and long service life.
Galvanized grating, also called galvanized steel grating or galvanized steel bar grating, refers to steel bar grating made of mild carbon steel through hot dipped galvanized surface treatment.
Mild carbon steel provides an economical, high strength for use in most industrial and commercial applications. And hot dipped galvanized surface treatment supplies excellent corrosion resistance performance for durability.
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Load Bearing Flat Bar size |
Thickness≥3mm, depth ≥19mm |
|
|
19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6…. |
|
Pitch of Load bearding flat bars(mm) |
12.5,15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80... |
|
Pitch of cross bars(mm) |
38.1, 50, 50.8, 70, 75, 80, 99,100, 101.6, 102... |
Steel Grating Standard
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Country |
Steel grating standard |
Steel material standard |
Hot galvanizing standard |
|
China |
YB/T4001-1998 |
GB 700-88 |
GB/T13912-2002 |
|
USA |
ANSI/NAAMM(MBG531-88) |
ASTM (A36) |
ASTM(A123) |
|
England |
BS4592-1987 |
BS4360 ( 43A) |
BS729 |
|
Australia |
AS1657-1992 |
AS3679 |
AS1650 |
Steel Grating More detailed information
|
No. |
Item |
Description |
|
1 |
Bearing Bar |
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc |
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I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc |
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|
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US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'',etc |
|
2 |
Bearing Bar Pitch |
12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc |
|
|
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US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
|
3 |
Twisted Cross Bar Pitch |
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
|
4 |
Material Grade |
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, |
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|
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Mild steel & Low carbon steel, etc |
|
5 |
Surface Treatment |
Black, self colour, hot dip galvanized, painted, spray coating |
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6 |
Grating Style |
Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Steel grating packaging and transportation
GNEE STEEL Customer visit
We provide customized steel grating solutions for industrial walkways, platforms, and infrastructure projects.
If you require engineering support, load calculations, or customized specifications, please contact us for a tailored solution and quotation.