QR Code Marking on Metal

QR code marking on metal creates machine-readable identification directly on a metal surface or on a separate metal tag. It is used for industrial assets that require durable identification, serialization and connection to digital records.

Why Mark QR Codes on Metal?

Industrial identification may need to remain associated with an asset for years. Metal provides a durable physical substrate where conventional labels may not provide the required service life.

A machine-readable code can connect the physical item to information stored elsewhere without placing the complete record on the tag itself.

Laser QR Code Marking on Metal

Laser marking is one method used to create identification on metal surfaces. The resulting mark can contain both machine-readable and human-readable data.

The appropriate marking approach depends on the metal, surface condition, identification requirement and operating environment.

Posttech uses laser marking for custom metal QR code tags. Detailed production parameters are selected according to the specific material and application.

What Information Can Be Marked?

• QR codes
• Data Matrix codes
• 1D barcodes
• Serial numbers
• Asset IDs
• URLs
• Human-readable text
• Logos

Fixed data can be repeated across a batch, while variable-data production can give every tag a different identifier.

QR Code Marking on Stainless Steel

Stainless steel is widely used for durable industrial identification. QR codes, barcodes, Data Matrix codes and serial numbers can be laser marked on suitable stainless steel tag surfaces.

For material-specific options, see Stainless Steel QR Code Tags.

QR Code Marking on Aluminium

Aluminium — also commonly spelled aluminum — provides a lightweight substrate for machine-readable identification. Anodized aluminium tags are used in equipment, panels, cabinets, meters, inventory and other applications.

See Aluminium QR Code Tags for material-specific information.

QR Code Marking on Titanium

Titanium can carry QR codes and other identification data and may be selected where its specific material properties are useful. Suitability depends on the actual application and operating conditions.

See Titanium QR Code Tags.

QR Code vs Data Matrix on Metal

Both QR codes and Data Matrix codes are two-dimensional machine-readable symbols. The appropriate choice depends on the identification system, available marking area, data requirements and reader environment.

Posttech can manufacture metal tags carrying either format according to the customer's identification requirement.

Direct Marking vs Separate Metal QR Tags

A code can sometimes be marked directly on an asset. A separate metal tag may be preferable when the asset surface is unsuitable, the asset may be repainted, a standardized identification plate is required, or the tag needs a controlled mounting location.

Where Is QR Code Marking on Metal Used?

• Industrial machinery
• Equipment identification
• Cylinders and containers
• Tools and returnable assets
• Utility equipment
• Outdoor infrastructure
• OEM identification
• Asset tracking and maintenance systems

What Should Be Specified?

When requesting metal QR tags, useful information includes the metal type, tag dimensions, quantity, data format, serialization requirement, mounting method and operating environment.

The final design should be evaluated for its intended scanning and operating conditions.

Can Metal QR Codes Have Unique Serial Numbers?

Yes. Each tag can carry a unique QR code together with a human-readable serial number or asset ID. This allows the physical tag and digital asset record to share a common identifier.

Learn more about metal QR code tags for asset tracking .