flat-expanded-metal-sizes

Flat expanded metal is a customizable product with a complete range of specifications. Available materials include high-quality carbon steel, galvanized steel, stainless steel (304/316) and aluminum alloy . Product dimensions and materials can be flexibly selected according to requirements, making it suitable for various applications from light-duty decoration to heavy-duty industrial protection.

The product is first formed through an expansion process and then processed by cold rolling and flattening to form a mesh panel with a smooth surface. Its performance is mainly determined by standard and customizable dimensional parameters.

This product is widely used in ventilation grilles for electronic equipment, precision filters, architectural decorative panels, walkway treads, machine guards, construction reinforcement parts, truck bed linings and municipal guardrails.

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Hole Patterns


Diamond	Fan-shaped	Square	Round

Product Specification

Table 1: Specifications of Carbon Steel Flattened Expanded Metal
Style	Minimum Thickness (inches)^A	Nominal Weight in lbs./100 Sq. Ft.^B	Design Size (inches)^C		Opening Size (inches)^C			Strand Size (inches)			Overall Thickness (inches)	Open Area
Style	Minimum Thickness (inches)^A	Nominal Weight in lbs./100 Sq. Ft.^B	SWD	LWD	SWO	LWO		Width		Thickness	Overall Thickness (inches)	Open Area
¼"-#20	0.026	74	0.250	1.05	0.092		0.715	0.079	0.029		0.029	37%
¼"-#18	0.034	100	0.250	1.05	0.090		0.715	0.080	0.038		0.038	36%
½"-#20	0.026	37	0.500	1.26	0.342		1.000	0.079	0.029		0.029	68%
½"-#18	0.034	61	0.500	1.26	0.306		1.000	0.097	0.038		0.038	61%
½"-#16	0.043	77	0.500	1.26	0.304		1.000	0.098	0.048		0.048	61%
½"-#13	0.066	126	0.500	1.26	0.286		1.000	0.107	0.072		0.072	57%
¾"-#16	0.043	47	0.923	2.10	0.701		1.750	0.111	0.048		0.048	76%
¾"-#14	0.054	56	0.923	2.10	0.713		1.760	0.105	0.060		0.060	77%
¾"-#13	0.066	67	0.923	2.10	0.711		1.781	0.106	0.072		0.072	67%
¾"-#10	0.066	102	0.923	2.10	0.603		1.755	0.160	0.072		0.072	65%
¾"-#9	0.101	157	0.923	2.10	0.593		1.688	0.165	0.108		0.108	64%
1"-#16	0.043	38	1.000	2.52	0.804		2.250	0.098	0.048		0.048	80%
1½"-#16	0.043	35	1.330	3.15	1.092		2.750	0.119	0.048		0.048	82%
1½"-#14	0.054	43	1.330	3.15	1.098		2.750	0.116	0.060		0.060	83%
1½"-#13	0.066	51	1.330	3.15	1.098		2.750	0.116	0.072		0.072	83%
1½"-#9	0.101	105	1.330	3.15	1.014		2.563	0.158	0.108		0.108	76%
^A The minimum thickness is absolute, not subject to minus variation. ^B A variation in weight per square ft. of ±10 % is permissible, based on the weight of any sheet or bundle. ^C A tolerance of ±10 % 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.