• Hot Rolled Square Steel Billet 3SP Standard 125mm System 1
  • Hot Rolled Square Steel Billet 3SP Standard 125mm System 2
  • Hot Rolled Square Steel Billet 3SP Standard 125mm System 3
  • Hot Rolled Square Steel Billet 3SP Standard 125mm System 4
  • Hot Rolled Square Steel Billet 3SP Standard 125mm System 5
  • Hot Rolled Square Steel Billet 3SP Standard 125mm System 6
Hot Rolled Square Steel Billet 3SP Standard 125mm

Hot Rolled Square Steel Billet 3SP Standard 125mm

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
2000 m.t.
Supply Capability:
10000 m.t./month

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Structure of Hot Rolled Square Steel Billet 3SP Standard 125mm  

 Hot Rolled Square Steel Billet 3SP Standard 125mm

Description of Hot Rolled Square Steel Billet 3SP Standard 125mm  

PPGI is made by cold rolled steel sheet and galvanized steel sheets as baseplate,  through the surface pretreatment (degreasing, cleaning, chemical conversion processing), coated by the method of continuous coatings (roller coating method), 

and after roasting and cooling. Zinc coating: Z60, Z80, Z100, Z120, Z180, Z275, G30, G60, G90
Alu-zinc coating: AZ60, AZ80, AZ100, AZ120, AZ180, G30, G60, G90 

 

Hot Rolled Square Steel Billet 3SP Standard 125mm

Main Feature of Hot Rolled Square Steel Billet 3SP Standard 125mm  

1) Excellent corrosion resistance: The zinc layer provides a good protection of Pre-painted Galvanizeed Steel Sheet.
2) High heat resistance: The reflective surface of the material aids in efficiently reflecting the sunlight away and in turn reducing the amount of heat transmitted. The thermal reflectivity converts into energy savings.
3) Aesthetics: Pre-Painted Galvanized steel sheet is available in plethora of patterns and multiple sizes as per the requirements that given by our customers.
4) Versatility: can be used in the various areas.
Standard seaworthy export packing: 3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.

 

Applications of Hot Rolled Square Steel Billet 3SP Standard 125mm 

1) Automotive bodies: filters, fuel tanks, etc.

2) Construction materials: roofings, welding pipes,

3) Electric and electronic appliances: computer cans, etc.

4) Steel cans: containers, etc.

5) Steel furniture: washing machines, refrigerators, microwaves, etc.

6) Drums

7) Office equipment: printer, recorders, etc.

8) Motors and transformers

 Hot Rolled Square Steel Billet 3SP Standard 125mm

Specifications of Hot Rolled Square Steel Billet 3SP Standard 125mm  

Classified symbolYield Point Minimum N/mm2Tensile Strength MinimumElongation Minimum %Application
N/mm2Nominal Thickness mm (t)
JISYogic
0.25-0.40.4-0.60.6-1.01.0-1.6
G3312specification
CGCCCGCC-205-270-20-21-24-24Commercial
CGCDCGCD---270---273132Drawing
---CG34024534020202020Structural
CGC400CG40029540016171818Structural
CGC440CG44033544014151618Structural
CGC490CG49036549012131416Structural
CGC570CG570560570------------Structural









ASTM DesignationYield Point MinimumTensile Strength MinimumElongation Minimum %Application
Q/BQB 445-2004(China standard)ASM A653/A653MJISG 3312
ksi(MPa)ksi(MPa)
TDC51D+Z(CS TYPE A+Z)CGCC
A653(M)-99 CS TYPE A,B,C---------Commercial
TDC52D+Z
CGCD
A653(M)-99 FS---------Lock Forming
TS250GD+Z(G250+Z)-
A653(M)-99 DS---------Drawing
TS300GS+Z(G300+Z)CGC 400
A653(M)-99 SS Grade33(230)33(230)45(310)20Structural
TS350GD+Z(G350+Z)CGC490
A653(M)-99 SS Grade37(255)37(255)52(360)18Structural
TS550GD+Z(G550+Z)CGC570
A653(M)-99 SS Grade40(275)40(275)55(380)16Structural



A653(M)-99 SS Grade50(345)50(345)65(450)12Structural



A653(M)-99 SS Grade80(550)80(550)82(570)---Structural



FAQ of Hot Rolled Square Steel Billet 3SP Standard 125mm  

We have organized several common questions for our clients,may help you sincerely: 

1. How Can I Visit There?
  Our company is located in Tianjin City, China, near Beijing. You can fly to Tianjin Airport Directly. All our clients, from home or aboard, are warmly   welcome to visit us!  
2. How Can I Get Some Sample?
  We are honored to offer you sample.  
3. Why choose CNBM?
  1, ISO, BV, CE, SGS approved.
  2, Competitive price and quality. 
  3, Efficient service team online for 24 hours. 
  4, Smooth production ability(50000tons/month) .
  5, quick delivery and standard exporting package. 
  6, Flexible payment with T/T, L/C, Paypal, Kunlun bank, etc.

Q:What are the different types of steel billet cutting defects?
During the cutting process of steel billets, various types of defects can occur, impacting the quality and integrity of the final product. These defects have different levels of severity. Some common defects include burr formation, cracks, surface imperfections, incorrect dimensions, and slag inclusion. Burr formation refers to the presence of unwanted metal pieces on the cut edges. Improper cutting blade alignment, excessive speed, or worn-out blades can cause burrs. They affect the billet's dimensional accuracy and may require additional processing for removal. Cracks can result from high stress and heat during cutting. Factors like improper speed, inadequate cooling, or material inconsistencies contribute to cracks. They compromise the billet's structural integrity and can lead to failure in the final product. Surface imperfections, such as scratches, dents, or gouges, can occur due to improper handling, inadequate lubrication, or worn-out blades. These imperfections affect the appearance and may require additional processing for rectification. Incorrect dimensions occur as deviations from the desired measurements. Improper blade alignment, inaccurate measurements, or machine malfunctions can cause these deviations. They can create compatibility issues during subsequent processing or in the final product. Slag inclusion refers to the presence of slag, a byproduct, in the billet. If the cutting blade encounters slag, it can embed in the cut edge, resulting in structural weakness and reduced mechanical properties in the final product. To ensure high-quality steel billets, it is crucial to identify and rectify these cutting defects. Regular maintenance and inspection of cutting equipment, proper training of operators, and adherence to quality control measures can minimize these defects and ensure the production of defect-free steel billets.
Q:How are steel billets marked for identification?
Steel billets are marked for identification using various techniques and methods. One common method is through the use of marking stamps or dies. These stamps or dies contain specific alphanumeric characters or symbols that are pressed onto the surface of the billet. This creates a permanent and visible mark that can be easily read and identified. Another method is the use of paint or ink marking. This involves applying a specific color or pattern onto the surface of the billet using paint or ink. This mark can then be visually inspected and matched with the corresponding identification code. In addition to these manual methods, some steel billets are marked using laser engraving or etching. This involves using a laser beam to remove a thin layer of material from the surface of the billet, creating a permanent and precise identification mark. Laser marking is highly accurate and can produce detailed marks, including barcodes or QR codes, which can be easily scanned for identification purposes. Furthermore, some steel billets may also have identification marks applied during the manufacturing process. These marks can include information such as the steel grade, batch number, manufacturer's logo, or any other relevant information. Such marks are typically made using hot stamping, embossing, or engraving techniques, ensuring durability and visibility. Overall, steel billets are marked for identification using a combination of manual techniques, such as marking stamps or paint marking, as well as advanced methods like laser engraving or etching. These identification marks are crucial for traceability, quality control, and ensuring the proper handling and usage of steel billets in various industrial applications.
Q:What is the typical tensile strength of a steel billet?
The tensile strength of a steel billet can vary depending on its specific grade and composition. Typically, steel billets have a tensile strength ranging from 370 to 550 megapascals (MPa). This range is commonly observed in low to medium carbon steels, which are utilized in various industries like construction, automotive, and manufacturing. It should be noted that higher-grade steels, including alloy steels, can exhibit considerably higher tensile strengths, surpassing 1000 MPa. Ultimately, the intended application and project requirements dictate the tensile strength of a steel billet.
Q:What are the main alloying elements used in steel billet production?
The main alloying elements used in steel billet production are carbon, manganese, silicon, and chromium. Carbon is the most important alloying element, as it enhances the strength and hardness of the steel. Manganese is added to improve the toughness and hardenability of the steel. Silicon is added to enhance the steel's resistance to corrosion and oxidation. Chromium is used to increase the steel's hardness, corrosion resistance, and wear resistance. These alloying elements are carefully controlled and added to steel during the production process to achieve the desired properties and characteristics in the final steel billets.
Q:What are the different methods of steel billet surface etching?
Various industries commonly use several different methods for steel billet surface etching. These methods encompass chemical etching, electrolytic etching, and laser etching. 1. Chemical etching involves the immersion of the steel billet in a chemical solution, typically an acid, that selectively eliminates a thin layer of material from the surface. The specific chemical solution utilized depends on the etching process requirements, such as desired depth and pattern. Hydrochloric acid, nitric acid, and ferric chloride are commonly employed chemicals for steel etching. 2. Electrolytic etching entails passing an electric current through the steel billet while it is submerged in an electrolyte solution. The current facilitates a controlled dissolution of the surface metal, resulting in the desired etched pattern. Electrolytic etching provides precise control over the process and can generate intricate and detailed designs. It is often employed for marking or labeling steel billets with logos, serial numbers, or other identification marks. 3. Laser etching is a highly precise and non-contact method of surface etching. It involves the use of a laser beam to selectively remove material from the steel billet surface. Computer software directs and controls the laser beam, enabling intricate and customizable designs. Laser etching is suitable for creating permanent markings, logos, or patterns on steel billets. It finds wide application in industries such as automotive, aerospace, and electronics. Each method has its own advantages and limitations, and the choice of etching method depends on factors like the desired design, the material properties of the steel billet, and the production requirements.
Q:What are the different methods of hardness testing for steel billets?
There are several methods of hardness testing for steel billets, each offering different advantages and levels of accuracy. Some of the most common methods include: 1. Rockwell hardness testing: This is one of the most widely used methods and measures the depth of indentation caused by a specific load on a steel billet's surface. It provides a hardness value based on the depth of penetration, making it convenient and relatively quick to perform. 2. Brinell hardness testing: This method involves indenting a steel billet's surface with a spherical indenter under a specific load. The diameter of the resulting impression is measured to determine the hardness value. Brinell testing is especially useful for large billets or materials with a coarse microstructure. 3. Vickers hardness testing: Vickers testing uses a pyramidal diamond indenter to create an impression on the surface of a steel billet. The diagonal length of the impression is measured, and the hardness value is calculated based on the applied load. Vickers testing is suitable for a wide range of materials, including steel billets. 4. Knoop hardness testing: Similar to Vickers testing, Knoop hardness testing also uses a pyramidal diamond indenter. However, the indentation shape is elongated and narrower, allowing for measurements on smaller or thinner samples. This method is often used for precise and microhardness testing. 5. Leeb hardness testing: Leeb testing is a portable and non-destructive method that uses an impact device to measure the rebound hardness of a steel billet. The device strikes the surface with a small ball and measures the velocity of the rebound, which is then converted into a hardness value. This method is commonly used for on-site or in-field measurements. 6. Ultrasonic hardness testing: This method uses ultrasonic waves to measure the hardness of a steel billet. The waves are transmitted through the material, and the time taken for the waves to travel through the billet is measured. This data is then converted into a hardness value. Ultrasonic testing is non-destructive and suitable for large or thick billets. It is important to note that each hardness testing method has its own limitations and considerations. The choice of method will depend on factors such as the size, shape, and surface condition of the steel billet, as well as the desired accuracy and convenience of the testing process.
Q:How are steel billets used in the manufacturing of springs?
Steel billets are essential in the manufacturing of springs as they provide the raw material needed for the production process. Springs are typically made from high-quality steel, which is forged into billets. The first step in using steel billets for springs involves heating the billets to a specific temperature to make them malleable. Once the billets are heated, they are then shaped into the desired form. This can be done through various methods, including hot rolling or extrusion. After shaping, the billets are further processed to enhance their mechanical properties. This may involve heat treatment processes such as quenching and tempering, which improve the hardness, strength, and durability of the steel. The specific heat treatment process used depends on the desired characteristics of the spring. Once the billets have been shaped and heat-treated, they are ready to be transformed into springs. The billets are typically cut into smaller lengths, and then further machined or formed into the specific shape and size required for the spring. This can be done through various methods, such as coiling, bending, or stamping. The final step in the manufacturing process involves finishing the springs. This may include grinding or polishing to ensure a smooth surface and remove any imperfections. Additionally, coatings or platings may be applied to enhance the corrosion resistance or aesthetic appearance of the springs. In summary, steel billets are integral to the manufacturing of springs. They serve as the raw material, undergo various shaping and heat treatment processes, and are ultimately transformed into the desired form of the spring. The use of high-quality steel billets ensures that the resulting springs possess the necessary strength, durability, and performance characteristics required for their intended applications.
Q:What are the key properties and characteristics of steel billets?
Steel billets, which have a rectangular shape and typically a square cross-section, are semi-finished steel products. They serve as the initial stage for manufacturing various steel products such as bars, rods, and wire. Steel billets possess several important properties and characteristics: 1. Composition: Steel billets primarily consist of iron and carbon, with additional alloying elements incorporated to enhance specific properties. The carbon content generally ranges from 0.2% to 0.5%, depending on the desired strength and hardness. 2. Strength and Hardness: Due to their composition and heat treatment processes, steel billets offer excellent strength and hardness. This makes them suitable for applications requiring high load-bearing capacity and resistance to wear and tear. 3. Ductility: Despite their strength, steel billets also exhibit good ductility, allowing them to be easily shaped and formed into various products through processes like rolling, extrusion, and forging. This versatility enables their use in different manufacturing methods. 4. Homogeneity: Steel billets possess a uniform internal structure, ensuring consistent mechanical properties throughout the entire material. This homogeneity is achieved through precise casting and cooling processes, which minimize the presence of defects and impurities. 5. Dimensional Precision: Steel billets are manufactured with specific dimensions and tolerances, ensuring the desired size and shape for downstream processing. This dimensional precision enables efficient and accurate production, minimizing waste and maximizing productivity. 6. Surface Quality: Steel billets have a smooth and clean surface finish, free from significant imperfections or irregularities. This is crucial for subsequent processing steps, as it ensures proper bonding during welding, machining, or coating operations. 7. Heat Conductivity: Steel billets exhibit excellent thermal conductivity, efficiently transferring heat during various manufacturing processes like hot rolling or continuous casting. This property ensures uniform heating and cooling, resulting in consistent material properties. 8. Corrosion Resistance: Steel billets are prone to corrosion if left unprotected. However, they can be coated or treated with anti-corrosive measures to enhance their resistance to rust and other forms of degradation. In summary, steel billets are characterized by their strength, ductility, dimensional precision, and homogeneity. These properties make them a critical raw material in the steel industry, facilitating the production of high-quality steel products used in diverse sectors such as construction, automotive, and infrastructure.
Q:What is the chemical composition of steel billets?
Steel billets typically contain iron as the primary element, along with varying amounts of carbon, manganese, silicon, sulfur, and phosphorus, which make up its chemical composition. The specific grade and intended use of the steel billets determine the exact composition, which may vary. Carbon, in small quantities ranging from 0.02% to 0.5%, is included to enhance the steel's strength and hardness. Manganese is commonly added to improve toughness and hardenability, while silicon aids in deoxidizing the metal and increasing its strength. Sulfur and phosphorus, impurities that can adversely affect the steel's mechanical properties, are typically kept at low levels. Furthermore, chromium, nickel, molybdenum, and other elements may be added in small amounts to enhance specific properties such as corrosion resistance or high-temperature strength.
Q:What are the different surface treatments for improved corrosion resistance in steel billets?
Steel billets can undergo different surface treatments to enhance their resistance to corrosion. These treatments aim to establish a protective barrier on the steel's surface, preventing corrosive agents from reaching the metal beneath. Some commonly used surface treatments for improved corrosion resistance in steel billets include: 1. Hot-dip galvanizing: Immersing the steel billets in molten zinc creates a galvanized coating, which is a zinc-iron alloy. This coating offers excellent corrosion resistance and prolongs the lifespan of the steel billets. 2. Electroplating: Through electroplating, a thin layer of metal such as zinc or nickel is applied to the steel billets using an electric current. This layer acts as a protective barrier against corrosion and provides an attractive finish. 3. Powder coating: By applying a dry powder mixture of resin and pigment to the steel billets and heating it, a durable and corrosion-resistant layer is formed. Powder coating is available in various colors and finishes. 4. Paint coatings: Applying corrosion-resistant paint to steel billets creates a protective barrier that hinders moisture and corrosive agents from reaching the steel. Multiple layers of paint can be added for enhanced durability and longevity. 5. Passivation: Passivation is a chemical process that eliminates free iron and contaminants from the steel billets' surface. This process prevents corrosion and encourages the formation of a protective oxide layer. Passivation is often combined with other surface treatments like electroplating or powder coating to enhance corrosion resistance. It is important to consider factors such as the billets' operating environment, desired lifespan, and cost considerations when choosing a surface treatment for improved corrosion resistance. A thorough evaluation of specific requirements and professional consultation are crucial in determining the most suitable treatment option.

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