Views: 0 Author: Site Editor Publish Time: 2026-09-23 Origin: Site
When a steel grating project requires a combination of structural strength and a specified protective surface treatment, material grade and coating should be considered together.
S355JR Bitumen Coated Grating combines S355JR structural steel with a bitumen-based surface coating specified for the project. This type of customized grating can be considered for industrial platforms, walkways, trench covers, infrastructure projects and other applications where the project specification calls for both a structural steel grade and bituminous protection.
Fenghua Wiremesh manufactures welded and press-locked steel grating and supports customized production based on overseas project requirements. Its steel grating range includes open grating, framed grating, serrated grating, press-locked grating, special-shaped grating and other configurations.
For buyers looking for S355JR Steel Grating Manufacturer or Bitumen Coated Steel Grating Supplier, the important factors are not only material grade and coating, but also bearing bar dimensions, load requirements, panel size, surface configuration and installation conditions.
S355JR Bitumen Coated Grating is a steel bar grating manufactured using S355JR steel and finished with a bitumen-based coating according to the project requirements.
The product can be configured as welded or press-locked grating depending on the required structure.
Its basic construction can include:
S355JR load-bearing flat bars
Cross bars
Welded or press-locked connections
Plain or serrated bearing bars
Edge banding or end plates
Bitumen-based surface coating
S355JR is a structural steel grade commonly used in steel fabrication. The JR designation relates to impact testing at a specified temperature, while the S355 designation identifies the steel's minimum yield strength class under the relevant European structural steel standard.
For a grating project, however, the complete specification should be confirmed through the purchaser's drawings and applicable standards rather than relying on the steel grade alone.
Material selection has a direct influence on the structural design of a grating panel.
For industrial applications, the buyer may specify S355JR when the project requires a particular European structural steel grade.
Compared with a basic mild-steel specification, the higher strength class can provide designers with another material option when designing load-bearing grating.
The final load capacity still depends on the complete grating structure, including:
Bearing bar height
Bearing bar thickness
Bearing bar spacing
Cross bar spacing
Panel span
Support arrangement
Load type
Installation method
Therefore, S355JR Grating should not be selected solely because the material has a higher nominal strength.
The grating dimensions and support structure need to be designed around the actual load requirements.
Bitumen coating provides a dark protective surface layer that can be specified for certain steel components and grating applications.
Industry grating suppliers list bitumen coating among available finish options for steel grating.
Depending on the project, bitumen coating may be considered where the specification requires:
A protective coating system
Reduced direct exposure of steel to certain environments
A specified black surface finish
Additional separation between steel and adjacent materials
Protection for particular installation conditions
However, coating performance depends on the actual environment.
Exposure to weather, abrasion, mechanical impact, chemicals and moisture can affect coating service life. One industry grating source specifically notes that bitumen coating should not automatically be treated as a permanent protective coating for exposed environments.
For this reason, the buyer should provide the intended environment and coating specification when ordering Bitumen Coated Grating.
Material grade is one of the differences between standard mild-steel grating and an S355JR specification.
Factor | Standard Mild Steel Grating | S355JR Grating |
|---|---|---|
Material specification | Project dependent | S355JR |
Structural application | General grating applications | Load-bearing structural applications |
Design approach | Based on specified load | Based on specified load and S355JR material |
Surface treatment | Galvanized, painted or other | Can be combined with specified coating |
Custom dimensions | Available | Available |
Suitable for industrial projects | Yes | Yes, when specified by design |
Engineering requirement | Load and span calculation | Load, span and material specification |
The important point is that S355JR does not replace structural design.
A properly designed grating panel must still match the expected load, span and support conditions.
Industrial platforms often require an open flooring system that can support personnel, equipment access and maintenance activities while allowing drainage and ventilation.
Fenghua identifies platform grating as an application for industrial and marine environments, including ships, refineries, power plants and offshore platforms.
For a project specifying S355JR Bitumen Coated Grating, the engineering team may define:
S355JR bearing bars
Serrated or plain surface
Bearing bar spacing
Cross bar spacing
Panel dimensions
Load requirements
Edge treatment
Coating specification
The final design should be based on the actual platform structure.
Walkways can be exposed to water, dust, industrial residues and regular foot traffic.
A steel grating walkway provides an open structure that can support drainage and air circulation.
For applications where slip resistance is required, a serrated bearing bar can be specified.
Fenghua's current product information describes serrated grating as a solution for areas exposed to oil, water, grease and other conditions where additional surface traction is required.
A customized specification may therefore combine:
S355JR material + serrated bearing bars + selected mesh size + specified coating
This configuration should be evaluated according to the project's load and environmental requirements.
Trench covers are another potential application for steel grating.
A trench cover must be designed according to:
Clear span
Vehicle or pedestrian loading
Support frame
Panel dimensions
Bearing bar size
Opening requirements
Installation method
Fenghua lists trench covers among its steel grating applications and provides framed grating options that can be used for trench and equipment-cover applications.
For a S355JR Trench Cover, the material grade can be specified together with the structural dimensions.
If a bitumen coating is required, the coating specification should also be included in the engineering documentation.
One of the most important decisions is the bearing bar surface.
Plain bearing bars provide a flat surface.
They can be considered for applications where additional serration is not required.
Typical applications may include:
General industrial platforms
Equipment access areas
Walkways
Drainage covers
Maintenance platforms
Serrated bearing bars contain a patterned surface designed to increase traction.
They may be considered for areas where the surface can become wet, oily or slippery.
Potential applications include:
Industrial walkways
Oil and gas facilities
Chemical plants
Power plants
Mining facilities
Outdoor platforms
Fenghua currently offers serrated steel grating for industrial environments and supports customization of bearing bar dimensions, panel size, load class and surface finish.
The manufacturing structure is another consideration.
Welded grating uses resistance welding or another specified welding process to connect bearing bars and cross bars.
Advantages can include:
Rigid panel structure
High structural integrity
Common industrial application
Flexible bearing bar configurations
Suitable for customized dimensions
Fenghua describes its open steel grating as a load-bearing grid produced by high-pressure resistance welding.
Press-locked grating uses interlocking bars rather than the same welded cross-bar construction.
Fenghua describes press-locked grating as a structure formed by slotting and interlocking flat bars vertically and horizontally.
The choice depends on the engineering requirements, appearance, load conditions and installation method.
A product name alone is not enough for an accurate quotation.
A professional S355JR Grating Supplier will normally need additional technical information.
Specify:
S355JR
If another material standard or equivalent grade is acceptable, this should be clearly stated in the project specification.
Provide:
Height
Thickness
Spacing
Plain or serrated surface
Specify:
Type
Diameter or dimensions
Spacing
Connection method
Provide:
Length
Width
Quantity
Orientation
State whether the grating is intended for:
Pedestrian traffic
Maintenance equipment
Industrial machinery
Forklift traffic
Vehicle loading
Other specified loads
Specify:
Bitumen coating
If a specific coating standard, thickness, application method or color requirement applies, include it in the technical documentation.
The panel may require:
Flat bar edging
Angle frame
Toe plate
Cut-outs
Notches
Mounting holes
This information helps the manufacturer prepare a more accurate quotation.
Surface treatment should be selected according to the working environment.
Factor | Bitumen Coated Grating | Hot-Dip Galvanized Grating |
|---|---|---|
Surface appearance | Usually dark/black | Metallic zinc finish |
Coating type | Bitumen-based | Zinc coating |
Typical purpose | Project-specific protective finish | Corrosion protection |
Outdoor exposure | Requires environmental evaluation | Commonly used |
Abrasion resistance | Depends on coating system | Depends on zinc layer and environment |
Project specification | Often specified by project | Widely standardized |
Custom application | Available subject to specification | Widely available |
Fenghua's current open grating information identifies hot-dip galvanizing, electro-galvanizing and paint coating among available anti-corrosion treatments.
The correct finish should therefore be selected based on the project specification rather than assuming that one coating is suitable for every environment.
Consider an industrial project that requires steel walkway panels for maintenance access.
The preliminary specification could be:
Project Item | Example Requirement |
|---|---|
Product | Steel bar grating |
Material | S355JR |
Surface | Serrated |
Coating | Bitumen |
Application | Industrial walkway |
Load | Project-specific pedestrian/maintenance load |
Panel size | According to site drawings |
Edge treatment | Flat bar banding |
Installation | Grating clips or specified fixing system |
Quantity | According to project schedule |
This is a project planning example, not a documented Fenghua customer case.
Before production, the manufacturer should receive the final drawings, load requirements, panel dimensions and coating specification.
Fenghua's current steel grating portfolio covers industrial applications including walkways, platforms, trench covers and equipment covers. The company also states that it supports customized production according to overseas customer requirements.
For a project specifying S355JR Bitumen Coated Grating, customization can be important because the buyer may need to combine several requirements within one product specification.
For example:
Material: S355JR
Structure: Welded steel grating
Surface: Serrated
Coating: Bitumen
Application: Industrial platform
Load: According to engineering calculation
Dimensions: According to project drawings
This type of specification gives the manufacturer a clearer basis for production and quotation than simply requesting “heavy-duty steel grating.”
When sourcing from a S355JR Grating Manufacturer, buyers should evaluate more than the material grade.
Ask for material certificates or inspection documentation where required by the project.
The supplier should be able to produce the required bearing bar dimensions, mesh spacing and panel sizes.
Confirm whether the requested bitumen coating can be applied according to the project's coating requirements.
Complex projects may require:
Cut-outs
Special shapes
Frames
Reinforcing bars
Toe plates
Mounting holes
Custom panel dimensions
Fenghua's special-shaped steel grating service includes cutting, bending, welding or interlocking according to installation space and structural requirements.
For overseas projects, packaging, documentation and transportation should also be considered when selecting a supplier.
Fenghua Wiremesh was established in 2008 and currently focuses on steel grating and stainless steel wire mesh products. The company describes itself as integrating R&D, production and foreign-trade export, with customized steel grating available for overseas customers.
Its current steel grating product range includes:
Open Steel Grating
Serrated Steel Grating
Framed Steel Grating
Press-Locked Steel Grating
Special-Shaped Steel Grating
Composite Steel Grating
I-Type Steel Grating
Stair Treads
The company also identifies applications including industrial walkways, trench covers, platforms and bridge decking.
For a project requiring S355JR Bitumen Coated Grating, the technical specification can be discussed with Fenghua before production to determine the appropriate grating structure and coating arrangement.
It is steel bar grating manufactured with S355JR structural steel and finished with a specified bitumen-based coating. The exact grating structure, dimensions and coating requirements should be defined according to the project.
S355JR can be specified for structural steel applications, including steel grating, when the material grade is appropriate for the engineering requirements. The complete grating design must still be checked according to load and span.
Bitumen coated grating can be specified for projects requiring a bituminous surface treatment, including certain industrial and infrastructure applications. Suitability depends on the environment and project coating specification.
No. They are different surface-treatment systems. Bitumen provides a bituminous surface layer, while hot-dip galvanizing applies a zinc coating to the steel.
Yes, a project can specify serrated bearing bars when additional traction is required. Fenghua currently offers serrated steel grating with customized bearing bar and panel specifications.
Yes. Grating dimensions, bearing bar configuration, mesh spacing, panel shape, edge treatment and surface finish can be specified according to project requirements. Fenghua states that it provides customized steel grating production.
Provide the material grade, grating type, bearing bar size, spacing, panel dimensions, load requirement, application, coating requirement and quantity. Project drawings are also useful for customized orders.
S355JR Bitumen Coated Grating can be considered when an industrial or infrastructure project requires a specified structural steel grade together with a bitumen-based surface treatment.
The final product specification should include more than the words “S355JR” and “bitumen coated.” Bearing bar dimensions, mesh spacing, load requirements, panel size, grating structure, edge treatment and coating specifications all affect the final product.
Fenghua Wiremesh provides welded and press-locked steel grating and supports customized production for overseas projects, including industrial platforms, walkways, trench covers and other steel-grating applications.
For buyers searching for a S355JR Grating Manufacturer, S355JR Steel Grating Supplier or Bitumen Coated Steel Grating Manufacturer, providing the project drawings and technical requirements is the most practical way to obtain an accurate product configuration and quotation.
Contact Fenghua Wiremesh
Email: sales@fhgrating.com
WhatsApp: +86 133 1583 5959
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