Hardness Soft Dx51d DC51D Alloy Cold Rolled Steel Plates Sheets

Oct 29, 2025 Leave a message

What is the bending performance of DC51D+Z plate?

It has excellent bending performance. When creating curved components in the construction industry, such as decorative strips, it can be easily bent to the desired angle. The zinc layer also bends with the steel plate to a certain extent without peeling.

What are the conditions for DC51D+Z plate to maintain zinc coating after bending?

When conducting the coating bending test, the bending center diameter must comply with relevant regulations. For example, after a DC51D+Z plate is bent 180°, coating peeling within 6mm of the edge of the specimen is permitted. During arbitration, the bending specimen width must be no less than 50mm.

What is the salt spray corrosion resistance of DC51D+Z plate?

The zinc coating provides a certain degree of salt spray corrosion resistance. Generally speaking, the thicker the zinc coating, the longer the salt spray corrosion resistance lasts. The salt spray test duration is usually required to be between 48 and 96 hours.

What is the service life of DC51D+Z plate in a humid environment?

Service life depends on many factors, such as the thickness of the galvanizing layer, ambient humidity, and the presence of other corrosive media. In a generally humid environment, if the galvanizing layer is of moderate thickness, it can last for over 10 years.

Can DC51D+Z panels be used in long-term outdoor exposure?

Yes, its hot-dip galvanizing layer effectively prevents rust and is widely used in outdoor applications such as building fences and roofing. As long as the zinc layer is not completely corroded, the steel substrate is well protected.