Rolling plate


Rolling plate

EN 10025-2 is European standard, EN 10025-2 Carbon Steel is a steel alloy where carbon is the main alloying element.

Carbon steel can be grouped into 3 categories: Low Carbon Steel (also known as Mild Steel), Medium Carbon Steel and High Carbon Steel.

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Rolling plate It belongs to a kind of steel plate, which is actually a long and narrow steel sheet supplied in coils.

The roll and the tablet are almost a cut package.
Cold hardened coil is obtained by pickling and cold rolling hot rolled coil. It can be said to be a kind of cold-rolled coil.
Cold rolled coil (annealed): hot rolled coil is obtained by pickling, cold rolling, bell annealing, leveling and finishing.

  There are three main differences between the two:
1. Generally, the cold and hard coiled plate is slightly dark in appearance.
2. The surface quality, structure and dimensional accuracy of cold-rolled sheet are better than those of cold-rolled sheet.
3. In terms of performance, the cold-rolled coil directly obtained from the cold rolling process of the hot-rolled coil is work hardened during cold rolling, resulting in an increase in yield strength and some residual internal stress, and the external performance is relatively \"hard\", so it is called cold-rolled coil.

Cold rolled coil (annealed): the cold-rolled coil is obtained by Bell annealing before rolling. After annealing, the work hardening phenomenon and internal stress are eliminated (greatly reduced), that is, the yield strength is reduced close to that before cold rolling.
Therefore, the yield strength: the cold-rolled coil is greater than the cold-rolled coil (annealed), which makes the cold-rolled coil (annealed) more conducive to stamping.

Generally, the default delivery status of cold rolled coil is annealing status.

Most of the steel is sold in the form of coiled materials. After purchasing coiled materials, enterprises need to go through the uncoiling process before processing, which is generally used in the automotive industry. Of course, many automobile industries outsource the uncoiling process, and factories directly use uncoiled plates

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