• Steel Grating

  • Steel Grating

  • Steel Grating

  • Steel Grating

Steel Grating

Steel grating, also known as grid grid, is cross-arranged with flat steel according to a certain spacing and horizontal bars (twisted square steel, square steel, round steel, flat steel, etc.), and welded into a square lattice in the middle, which is mainly used for gutter covers, steel platform plates, steel ladder treads, etc.

Standard: YB/T4001.1-2019

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Product details

The steel grating is generally made of carbon steel, and the surface is hot-dip galvanized, which can prevent oxidation. Can also be made of stainless steel. Steel grating has ventilation, lighting, heat dissipation, anti-skid, explosion-proof and other properties.

Standard: YB/T4001.1-2019

There are four main types of materials used in steel grating, namely carbon steel, galvanized steel, stainless steel and aluminum alloy. Specifically, carbon steel grating is one of the most common types, the material used to make steel grating is mainly composed of carbon and iron, the cost is relatively low, it is a common type in the market. Galvanized steel grating will be carbon steel surface coated with zinc iron alloy, can effectively prevent corrosion, oxidation resistance is very high. Stainless steel grating, on the other hand, uses high-temperature and pressure-resistant stainless steel, which is suitable for some special environments, such as marine engineering construction in the Gulf. Aluminum alloy steel grating is a lightweight material, lightweight and corrosion resistant, with good high temperature resistance and strength, suitable for air purifiers, air ducts and ventilation systems.

The material of steel grating is mainly divided into four kinds

The first is made of raw flat steel and twisted steel cross-welded without surface treatment of steel grating called "carbon steel grating" also known as "black iron grating".

Steel Grating

The second is the surface of the hot-dip galvanized appearance of silver-white steel grating, the practice is to "carbon steel grating" into the galvanized pool for soaking so that the galvanized layer attached to the surface of the product has a certain anti-corrosion and anti-rust effect.

Steel Grating

The third is stainless steel, stainless steel material is divided into 201 stainless steel material / 304 stainless steel material, the difference is that 201 stainless steel touch water and easy to rust, 304 stainless steel is more durable, is commonly used food grade 304 stainless steel.

Steel Grating

The fourth type of painted steel grating is also known as "spray steel grating" is to use "carbon steel grating" surface with a color of the spray or paint surface treatment, presenting a different color role, anti-corrosion and rust resistance in general.

Steel Grating

Galvanized steel grating, stainless steel grating, plug-in steel grating, non-slip steel grating, heavy duty steel grating, composite steel grating, profiled steel grating, step plate, trench cover plate.


1. According to the welding method, can be divided into: pressure welding type, phase embedded type, through the lock type and through the welding type.

2. According to the shape of the side surface of the load flat steel, it can be divided into: flat type, tooth type and "I" type, etc.

3. According to its use, it can be divided into general purpose grating and special purpose grating such as gutter cover, step plate, etc.

4. According to the material, the steel grating is divided into: stainless steel grating and carbon steel grating.

Steel Grating

Steel Grating

Steel Grating


1. High strength, light weight;

2. Strong anti-corrosion ability, durable;

3. Beautiful appearance, bright surface;

4. No accumulation of dirt, rain, snow, water, self-cleaning, easy maintenance;

5. Ventilation, lighting, heat dissipation, anti-slip, good explosion-proof;

6. Easy to install and disassemble.

Steel grating is a grid-like plate made of steel with the following advantages:

1. High strength: steel grating has high strength and stiffness, able to withstand large loads and impacts.

2. Corrosion resistance: the surface of steel grating is galvanized or sprayed, etc., which has good corrosion resistance and is suitable for wet, corrosive and other environments.

3. Good air permeability: the grid-like structure of steel grating makes it have good air permeability, which can effectively prevent water accumulation and slipping.

4. Easy to install: steel grating is lightweight, easy to install, and can be cut and processed according to the needs of various shapes and sizes.

5. Economical: Steel grating has relatively low price, long service life and low maintenance cost, which makes it an economical and practical construction material.


Steel grating is suitable for alloy, building materials, power station, boiler, shipbuilding, petrochemical, chemical and general industrial plant, municipal construction and other industries, with the advantages of ventilation and light, anti-slip, strong bearing capacity, beautiful and durable, easy to clean, easy to install, etc. Steel grating is mainly used for industrial platforms, ladder treads, handrails, access floors, railroad bridge sidewalks, aerial pylon platforms, drainage ditch covers, manhole covers, road dividers, three-dimensional parking lots, fences of institutions, schools, factories, sports fields, garden villas, and also as exterior windows of residential buildings, balcony guardrails, highway and railroad guardrails, etc.

Steel Grating

Steel Grating

Different sizes can meet the needs of different scenarios:

1, Formed by the flat steel width 65mm-200mm thickness 5mm-20mm welded hot-dip galvanized steel grating for the rear heavy-duty hot-dip galvanized steel grating: suitable for large parking lots, dock sites, roads, bridges, warehouses, construction, etc., strong load-bearing capacity.

2, Flat steel spacing of 40mm hot-dip galvanized steel grating: this grating can be said to be the most cost-effective grating, the most lightweight varieties. For occasions with small span, it is one of the more ideal choices.

3, Flat steel spacing of 60mm, 50mm crossbar hot-dip galvanized steel grating: commonly used in the mining industry processing sites, can effectively prevent the splash of ore residue.

4, Flat steel spacing of 30mm hot-dip galvanized steel grating: this grating is the most widely used varieties of industrial areas.

The service life of steel grating is mainly determined by the environment in which it is used and whether the surface zinc layer is damaged.

Specifically the air humidity and acidity. If the environment is relatively dry outdoor, the service life can be as high as 100 years, if it is in the humid marine environment can be up to 60 years, and if the application in the industry, generally can be up to 30 ~ 40 years. Of course, the above data reference premise is that the zinc layer on the surface of the steel grating is not damaged by external forces.

Detailed production parameters:

ItemSpecifications of Bearing Bar(mm)Diameter of CrossBar(mm)Pitch of Bearing Bar(mm)Pitch of CrossBar(mm