Cold Rolled Carbon Steel Coil
Cold rolled carbon steel coil is a product made by cold rolling after hot rolled coil is pickled to remove oxide scale. The finished product is hard rolled coil. If it is further treated by annealing and other processes, its performance can be further improved.
cold rolled carbon steel coil Definition
Cold rolled carbon steel coil is a product made by cold rolling after hot rolled coil is pickled to remove oxide scale. The finished product is hard rolled coil. If it is further treated by annealing and other processes, its performance can be further improved.
The surface quality of cold-rolled products can be divided into two categories: coated and bare.In production, the general practice is to follow the regulations of Germany DIN1623 in part, and classify surface quality into O3 and O5 surface quality.
Signs and characteristics of surface types and structures
|
Product surface |
Name |
Logo |
Features |
|
Surface type |
Ordinary cold rolled surface |
O3 |
Fine pores, small grooves, small pits, light scratches and slight discoloration are allowed |
|
Better surface |
O5 |
The better side must be free of defects and have a uniform appearance that will not affect the grease, paint or plated surface. |
|
|
Surface structure |
smooth |
g |
The surface must be uniformly smooth. |
|
Matt |
m |
The surface must be uniformly smooth |
|
|
Rough |
r |
The surface has a large roughness |
The cold-rolled coil plates on the O5 surface are mainly used for the outer door panels and side panels of cars. In terms of the standards for household appliances, they are even more stringent. The surface of the freezer door panels is almost all highly polished and bright. The surface quality requirements for the base plates are very high. Therefore, the smooth surface of the cold-rolled coil is a major selling point of our factory.
Common Materials
Low carbon steel
Such as SPCC, DC01, etc. have good machinability and weldability.
Medium carbon steel
Such as SPCD, DC03, etc. have high strength and are suitable for structural parts.
Alloy steel
Such as SPCE, DC04, have high strength and wear resistance.
Stainless steel
Such as 304, 430, etc. have strong corrosion resistance and are suitable for special environments.
Product Features
Cold rolled carbon steel coil has the following features
1. Strong and durable, longer service life
2. Heat resistant, not easy to change color at high temperature and heat reflectivity
3. Better appearance, silver-white surface
4. Excellent spraying performance
5. Better welding performance
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