Stainless Steel Expanded Metal Grating

Stainless Steel Expanded Metal Grating is a high-end industrial metal grating featuring outstanding corrosion resistance and long-term durability. It is made from premium austenitic stainless steel, mainly grades 304 and 316. Grade 304 is suitable for general corrosive environments, while grade 316 offers stronger resistance to salt water and chemicals, making it ideal for marine engineering and high-hygiene applications.

Produced by CNC precision expansion technology, solid steel sheets are slit and stretched to form seamless, weld-free diamond-opening grating. This one-piece structure provides high load capacity and stable performance, with a naturally serrated anti-slip surface. The material has a passive chromium oxide layer, requiring no additional protective coating.

It is widely used in food and pharmaceuticals, marine engineering, chemical plants, architectural decoration, dairy and brewing industries, fully meeting the demands of high-end applications for corrosion resistance, hygiene and low maintenance.

We offer customizable thickness, mesh sizes and coating specifications to meet specific load standards.

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Hole Patterns


Diamond	Hexagonal

Product Specification

Table 2: Specifications of Stainless 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
3.3 Ib.	3.32	2.00	6.0	1.625		4.88	0.312	0.250		0.656	69%
4.5 Ib.	4.25	1.41	4.0	1.000		2.88	0.300	0.250		0.625	58%
^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.