Micro Expanded Metal

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Introduction

Micro expanded metal is a type of special expanded metal with small openings. It is produced through the same slitting and stretching process as standard expanded metal but with precision tooling that enables strand widths and pitches in the sub-millimeter range. Mesh sizes typically fall below 6.0 mm in length, with base metal thicknesses as low as 0.02 mm . The micro expanded metal mesh has a broad range of uses, such as light transmission, heat dissipation, high electrical conductivity, sound absorption, and filtration protection.

Material: stainless steel, aluminum,mild steel, copper, nickel, titanium or other alloys

Hole type: diamond, hexagon, etc.

SWD: 0.005" to 0.118".

LWD: 0.039" to 0.236".

Strand width: 0.005" to 0.079".

Surface type: raised and flattened

Surface treatment: powder coating, galvanized (mild steel) hot dip galvanized, PVC coating

Specifications

Style	Design Sizes		Opening Sizes			Strand sizes		Overall Thickness	OpeningArea
Style	SWD	LWD	SWO	LWO		Thick	Width
3/16 #22 S	.19’’	.50’’	.14’’		.345’’	.031’’	.034’’	.070’’	61%
1/4 #20 S	.25’’	1.0’’	.125’’		.718’’	.036’’	.072’’	.135’’	45%
1/4 #18 S	.25’’	1.0’’	.110’’		.718’’	.048’’	.072’’	.147’’	43%
1/2 #20 S	.50’’	1.2’’	.438’’		.938’’	.036’’	.072’’	.140’’	80%
1/2 #18 S	.50’’	1.2’’	.438’’		.938’’	.048’’	.088’’	.172’’	72%
1/2 #16 S	.50’’	1.2’’	.375’’		.938’’	.060’’	.087’’	.175’’	65%
1/2 #13 S	.50’’	1.2’’	.312’’		.938’’	.090’’	.096’’	.204’’	57%
3/4 #16 S	.923’’	2.0’’	.813’’		1.750’’	.060’’	.101’’	.210’’	78%
3/4 #13 S	.923’’	2.0’’	.750’’		1.688’’	.090’’	.096’’	.205’’	76%
3/4 #10 S 13ga.	.923’’	2.0’’	.750’’		1.625’’	.090’’	.144’’	.290’’	72%
3/4 #9 S 10ga.	.923’’	2.0’’	.688’’		1.562’’	.134’’	150’’	.312’’	68%
1 #16 S	1.00’’	2.4’’	.938’’		2.062’’	.060’’	.087’’	.192’’	82%
1-1/2 #18 S	1.33’’	3.0’’	1.313’’		2.625’’	.048’’	.068’’	.140’’	90%
1-1/2 #16 S	1.33’’	3.0’’	1.250’’		2.625’’	.060’’	.108’’	.230’’	85%
1-1/2 #13 S	1.33’’	3.0’’	1.188’’		2.500’’	.090’’	.105’’	.242’’	85%
1-1/2 #10S 13ga.	1.33’’	3.0’’	1.188’’		2.500’’	.090’’	.138’’	.284’’	80%
1-1/2 #9 S 10ga.	1.33’’	3.0’’	1.125’’		2.375’’	.134’’	.144’’	.312’’	76%

Micro Expanded Metal characteristics

Features of micro expanded metal

Excellent Electromagnetic Shielding Performance

Effectively blocks electromagnetic interference (EMI) and radio frequency interference (RFI), preventing equipment from external interference or causing interference to their surroundings, ideal for electronics, telecommunications and medical applications.

Customizable aperture size allows for targeted shielding performance at specific frequencies.

Lightweight and high strength: The mesh structure provides light weight, making it ideal for weight reduction needs in aerospace and automotive industries.

The expansion process enhances the metal's structural integrity, giving it high mechanical strength, as well as pressure and impact resistance.

Excellent permeability and thermal properties: Openings allow free passage of air and light, supporting ventilation, heat dissipation, and sound absorption .

Cost-effective material utilization: The slitting-and-stretching process generates minimal waste compared to perforation, making it economical even with high-value metals such as nickel, titanium, or platinum .

Formability: Can be annealed for improved workability, and some variants are designed for wrapping or forming without losing airflow capability .

Micro Expanded Metal application

Acoustics: Speaker grilles, earphone covers, microphone meshes, and sound-absorbing panels .

Filtration: Precision filter elements for chemical, food, pharmaceutical, and oil industries; filter screens with uniform surface filtration performance .

Battery and energy: Electrochemical conductors, current collectors in battery cells and fuel cells .

EMI/RFI shielding: Electromagnetic interference shielding in electronics and aerospace .

Automotive and aerospace: Specialized components requiring lightweight precision mesh .

Decorative and protective: Fine architectural screens, machine guards, and protective covers for delicate instruments .

other:

Water filtration

Air filtration

CO2 Electrolysis

Electrode support

Enhanced catalytic activity

Catalyst fixation