Galvanized Steel Expanded Metal Grating

Galvanized Steel Expanded Metal Grating features stable structure and excellent corrosion resistance. Made from high-quality Q195/Q235 low-carbon steel sheets, it boasts outstanding tensile strength, impact resistance and structural rigidity, making it ideal for heavy-duty applications requiring durability and long-term anti-corrosion performance.

This product is formed by an expansion process: sheets are simultaneously slit and stretched into an integrated diamond-patterned mesh without welded joints or weak points. It maintains a favorable strength-to-weight ratio, delivers exceptional load-bearing capacity, and offers reliable anti-slip performance even in wet and oily conditions. The grating is treated with hot-dip galvanizing to form a metallurgically bonded zinc coating, which provides all-round rust protection.

This product is widely used in various demanding fields: outdoor industrial platforms, walkways, maintenance platforms and trench covers; anti-slip flooring in mines; pedestrian bridges, drainage covers and public passages; agricultural and marine applications such as livestock farms, docks and marinas.

Various thicknesses and mesh specifications are available to meet different load-bearing requirements.

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Hole Patterns


Diamond	Hexagonal

Product Specification

Table 1: Specifications of Gavanized Steel Expanded Metal Grating
Style	Nominal Weight in lbs.Per Sq.Ft.^A	Design Size (inches)^B		Opening Size (inches)^C			Strand Size (inches)			Overall Thickness (inches)	Open Area
Style	Nominal Weight in lbs.Per Sq.Ft.^A	SWD	LWD	SWO	LWO		Width		Thickness	Overall Thickness (inches)	Open Area
2.0 Ib.	2.00	1.33	5.33	1.000		3.60	0.235	0.135		0.460	77%
3.0 Ib.	3.00	1.33	5.33	0.940		3.44	0.264	0.183		0.540	60%
3.14 Ib	3.14	2.00	6.00	1.625		4.88	0.312	0.250		0.656	69%
4.0 Ib	4.00	1.33	5.33	0.940		3.44	0.300	0.215		0.618	55%
4.27 Ib	4.27	1.41	4.00	1.000		2.88	0.300	0.250		0.625	58%
5.0 Ib	5.00	1.33	5.33	0.813		3.38	0.331	0.250		0.655	50%
6.25 Ib	6.25	1.41	5.33	0.813		3.38	0.350	0.312		0.715	50%
7.0 Ib	7.00	1.41	5.33	0.813		3.38	0.391	0.318		0.740	45%
^A A variation in weight per square ft. of ± 5% is permissible, based on the weight of any sheet or bundle. ^B A tolerance of ±5 % is permitted in dimensions, center to center.

Production Workflow

Raw material

Our raw material steel plates are supplied by recognized companies such as Baosteel and Shougang Group. When the materials arrive, our quality control team performs detailed testing on chemical composition, dimensions, and related specifications to guarantee they meet or surpass quality requirements.

Stamping

Our company is equipped with advanced 4000 mm ultra-wide expanded metal manufacturing machines, as well as flattening and leveling equipment. We have developed and accumulated more than 1,000 types of precision molds for expanded metal, allowing us to satisfy customer demands for larger-sized materials. We can also select or customize new mesh patterns to meet requirements related to strength, appearance, ventilation, and shading.

Flattening

Our workshop is equipped with comprehensive deep-processing machinery such as cutting, flattening, bending, and welding equipment. With these capabilities, we can deliver customized processing solutions for expanded metal products to meet diverse application needs.

Leveling

Using high-precision leveling machinery, we ensure that the mesh surface remains flat, with evenly distributed openings and superior flatness tolerance. With many years of expertise and multiple CNC leveling machines, our skilled team optimizes operational parameters to maintain high productivity and consistent product quality.

Surface treatment

Our company offers a comprehensive range of surface treatment solutions, such as galvanizing, powder coating, anodizing, and PVDF coating. These finishes provide excellent durability and an appealing appearance for both functional and decorative uses.

Quality inspection

During manufacturing, our technical staff closely monitor processes such as punching, flattening, shearing, and leveling. This ensures that product quality can be evaluated continuously while also allowing us to detect and improve any weaknesses in the production process.

Packaging

Our packaging solutions are designed according to the chemical and physical properties of the products. Waterproof, moisture-resistant, and protective materials are used to minimize the risk of damage during shipping. We also offer customized packaging to meet individual customer specifications.

TAGS: expanded metal expanded metal grating