Strip steel is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width, and the length varies slightly according to the size of each roll.

A steel plate with a thin thickness, a narrow width, and a long length. Its width is generally 20mm—200 mm. Supplied in rolls, and its specifications are expressed as thickness x width. According to the quality of the steel, it is divided into high-quality and ordinary strip steel; according to the rolling method, it is divided into two types, hot-rolled and cold-rolled, which are called hot-rolled steel and cold-rolled steel. The thickness of hot-rolled ordinary steel strip is 2 mm-6 mm, and the thickness of cold-rolled steel strip is generally 0.05 mm-3.60 mm. Strip steel can be made of ordinary carbon steel, carbon structure steel, spring steel, tool steel, stainless steel and other steel grades. Widely used in the manufacture of welded pipes, clamps, washers, spring blades, saw blades, blades, etc.

Strip steel is generally supplied in coils and has the advantages of high dimensional accuracy, good surface quality, easy processing, and material saving.

Classification of strip steel:

Hot rolled ordinary strip steel:
1. Hot-rolled ordinary carbon structural steel strip;
2. Hot-rolled wide strip steel for bicycles;
3. Hot rolled strip steel for bicycles;
4. Hot-rolled strip steel for pressure vessels;

Cold rolled ordinary steel strip:
Hot rolled high quality strip steel
Cold rolled high-quality strip steel

1. Cold rolled high-quality strip steel
2. Cold rolled carbon structural steel strip:

The cold-rolled high-quality carbon strip is made of high-quality carbon structural steel and is cold-rolled. Because cold-rolled strip can be rolled thinner than hot-rolled strip, and has higher dimensional accuracy and higher strength, it is often used
Thinner cold-rolled strips are used instead of thicker hot-rolled strips for the same purpose, which can save about 30% of steel. According to the manufacturing precision, it can be divided into ordinary precision (P), high width precision (K), thickness
Four types of strip steel with higher precision (H) and width and thickness precision (KH). According to the material state, it can be divided into two types: cold-hardened and annealed steel. The former has higher strength and the latter has good plasticity and toughness.

3. Heat-treated spring strip steel

Main use: Mainly used in the manufacture of spring parts such as machine tools and instruments, but also in the manufacture of cutting tools, clock components, camera shutters, etc.

4. Cold rolled spring steel, tool steel strip

5. Cold-rolled strip steel for shaving blades: The strip steel for cold-rolled shaving blades is made of alloy tool steel and stainless steel and is cold-rolled.

6. Cold-rolled carbon tool steel strip for watches:

Main purpose: used to manufacture watch movement parts and other tools.

7. Cold rolled stainless steel strip:
The cold-rolled stainless steel strip is made by further cold rolling with hot-rolled stainless steel strip as the blank. Compared with hot rolled strip, it has higher dimensional accuracy, low surface roughness, good surface quality, smooth
Clean and high strength. Therefore, thinner cold-rolled strips can be used instead of thicker hot-rolled strips for the same purpose to save the amount of steel, which is of great economic significance.
Cold-rolled stainless steel strips are divided into five categories: austenite, austenite-ferrite, ferrite, martensite, and precipitation hardening according to their organizational characteristics. They can be selected when used.

8. Cold rolled stainless steel strip for spring:

Main purpose: used to make leaf springs and coil springs.

9. Cold rolled stainless steel strip for watches

Main purpose: used to manufacture watch parts.

10. Non-magnetic stainless steel strip

Main purpose: used to manufacture non-magnetic stainless steel structural parts in electric vacuum components and parts that are not easy to be magnetized under magnetic field conditions.

11. Cold-rolled high-resistance electric heating alloy strip steel

Main purpose: used to manufacture heating elements and general resistance elements in industrial furnaces.

12. Cold-rolled silicon steel strip (sheet) for electrical engineering:

Cold-rolled silicon steel sheet, also known as cold-rolled electrical strip steel, is made of electrical silicon steel with 0.8%-4.8% silicon as the material and cold-rolled.

Cold-rolled silicon steel sheets are divided into two types: non-oriented grain and grain oriented. Cold-rolled electrical strip steel has the characteristics of flat surface, uniform thickness, high stacking coefficient, good punching performance, etc., and is more than hot-rolled Electrical steel strip has high magnetic induction and low iron loss. Using cold strip instead of hot rolled strip to manufacture motors or transformers, its weight and volume can be reduced by 0%-25%. If cold-rolled oriented tape is used, the performance is better,Using it to replace hot-rolled strip or low-grade cold-rolled strip can reduce transformer power consumption by 45%-50%, and transformer performance is more reliable.

Main purpose: used in the manufacture of motors and transformers. Generally, the non-oriented grain cold-rolled strip is used in the state of motors or welding transformers; the grain-oriented cold-rolled strip is used as power transformers and pulse transformers.

13. Grain-oriented cold-rolled thin silicon strip steel (sheet)

Grain-oriented cold-rolled thin strip is also called cold-rolled silicon steel sheet for telecommunications. The thin steel sheet has high dimensional accuracy, smooth surface, uniform thickness, high stacking coefficient, high magnetic induction, low iron loss and other physical properties
. Using it to replace hot-rolled strip and low-grade cold-rolled thin strip can reduce transformer power consumption by 45%-50% and reduce structural size.

Main purpose: used to manufacture various power transformers, pulse transformers, magnetic amplifiers, switches and other iron cores with operating frequencies above 400HZ.

14. Explosion-proof strip steel for television picture tubes

(1) The main purpose is to manufacture picture tube parts.
(2) Material grade The material grade is 20G steel.
(3) Strip steel specifications and production units Strip steel specifications (0.6-0.85) * (16-19) (mm)

Main material of strip steel:

Galvanized color steel sheet (PPGI) Galvanized steel sheet (GI), aluminum-zinc color steel sheet (PPGL), galvanized steel sheet (GL), for raw pig iron, imported pig iron, wrought iron, also known as HR, CR. In addition to steel plates: hot rolled steel (HR), cold rolled steel (CR), and Q and J series.

Application range of strip steel: widely used in the production of welded steel pipes, cold-formed steel blanks, bicycle frames, rims, clamps, washers, spring blades, saw blades, hardware products, blades, etc.