Standards of steel grating

International Standards for Steel Grating:

ISO Standards:

• ISO 12944: This is a series of standards concerning the corrosion protection of steel structures by protective coatings. It includes guidelines that may be relevant to steel grating exposed to harsh environmental conditions.
• ISO 1461: While primarily for hot-dip galvanizing, this standard also applies to steel grating if it is galvanized as part of the corrosion protection process.

ASTM Standards (USA):

• ASTM A123 / A123M: Specifies the requirements for hot-dip galvanizing of steel products, which is commonly used in steel grating applications for corrosion protection.
• ASTM A36 / A36M: Standard specification for carbon structural steel. This is often used as a base material for the fabrication of steel grating.
• ASTM A1011 / A1011M: Standard specification for steel, sheet and strip, hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improved formability, and microalloyed steel for general use. This standard might apply to the material used for manufacturing steel grating.
• ASTM F1085: This standard specifically covers bar grating(steel grating) for general industrial use. It specifies requirements for welded and riveted steel gratings, including dimensions, material properties, and finish.

EN Standards (Europe):

• EN 10255: This standard specifies the requirements for welded and un-welded steel gratings used in construction, with attention to strength, durability, and load-bearing capacity.
• EN 1433: Standard for drainage systems, where steel grating is often used as the grating material for trench covers.
• EN ISO 1461: This standard, as mentioned earlier, governs the hot-dip galvanizing of steel, including steel grating, to ensure proper corrosion protection.

Steel Grating Types and Specifications:

There are several common types of steel grating, and different standards or specifications may apply depending on the type:

Welded Steel Grating:

• Design: Composed of cross bars welded to bearing bars.
• Standard: ASTM F1085 provides specific requirements for this type of grating.
• Applications: Widely used in industrial flooring, walkways, and platforms.

Riveted Steel Grating:

• Design: Made by riveting cross bars to bearing bars.
• Standard: Often governed by ASTM F1085 or similar standards for strength and safety.
• Applications: Typically used in areas requiring high strength.

Swage-Locked Grating:

• Design: Features cross bars that are locked into the bearing bars using hydraulic pressure.
• Standard: May fall under ASTM F1085 for the requirements of welded or riveted gratings, depending on the manufacturing process.
• Applications: Common in heavy-duty applications like platforms and bridges.

Key Considerations for Steel Grating Specifications:

When manufacturing or sourcing steel grating, some of the key factors that should be considered based on the standards include:

• Material Strength: Steel grating is typically made from carbon steel, stainless steel, or alloy steel, depending on the required strength and environmental resistance.
• Grating Load-Bearing Capacity: Standards will specify the maximum load that the grating can bear. It must be designed to handle the expected foot traffic or equipment loads.
• Grating Spacing and Dimensions: The bearing bar spacing, thickness, and overall dimensions of the grating should comply with the relevant standards to ensure safety and stability.
• Corrosion Protection: Hot-dip galvanizing or other coating processes are often required for corrosion resistance, particularly in outdoor or industrial applications.
• Anti-Slip Properties: Some standards may also include requirements for anti-slip surfaces to ensure safety in wet or slippery conditions.