• Square Steel Billet Q235 Grade Prime Quality 3# System 1
  • Square Steel Billet Q235 Grade Prime Quality 3# System 2
  • Square Steel Billet Q235 Grade Prime Quality 3# System 3
  • Square Steel Billet Q235 Grade Prime Quality 3# System 4
  • Square Steel Billet Q235 Grade Prime Quality 3# System 5
  • Square Steel Billet Q235 Grade Prime Quality 3# System 6
Square Steel Billet Q235 Grade Prime Quality 3#

Square Steel Billet Q235 Grade Prime Quality 3#

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
2000 m.t
Supply Capability:
50000 m.t/month

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Description of Square Steel Billet Q235 Grade Prime Quality 3#

M. S. Billets are used for rolling of TMT Re-Bars of Fe415 and Fe500 Grade and various other structural steel products. 
CRS Billets are used for rolling of CRS TMT Re-Bars. 
Special Alloy Billets are used for rolling of any special grade TMT Re-Bars like Earthquake resistant TMT Re-Bars and for special grade structural steel products.

Square Steel Billet Q235 Grade Prime Quality 3#

Main Feature Square Steel Billet Q235 Grade Prime Quality 3#

Raw elements(C,Fe,Ni,Mn,Cr,Cu.)---Smelted ingots by AOD finery---hot rolled into black suface---pickling in acid liquid---cold drawn----polished by automatically machine---  cutting into pieces---checking quanlity


Applications of Square Steel Billet Q235 Grade Prime Quality 3#

Widely Used in the areas such as Stainless Steel Fasteners, Chains, Kitchen and Sanitary wares, Furniture handles, Handrails, Electroplating and Electrolyzing pendants, Foods, Electron, Petroleum, Construction and Decoration, etc. Products have a high strength after cold-working. Electronic products parts, Medical appliance, Springs, Bus Inside and Outside packaging and building, Street Lamp Posts, etc. Decoration materials and Outdoor Publicity Billboard. Used for the products which have the Anti-Stress Corrosion requirement. Electron Products, Table-wares, Bolts, Nuts, Screen Meshes, Cumbustors and so on.

Square Steel Billet Q235 Grade Prime Quality 3#


Specifications of Square Steel Billet Q235 Grade Prime Quality 3#

StandardC(%)Mn(%)S(%)P(%)Si(%)
Q195≤0.12≤0.50≤0.040≤0.035≤0.30
Q235≤0.20≤1.40≤0.045 ≤0.045≤0.35 
Q275≤0.22≤1.50≤0.045≤0.045≤0.35
20MnSi0.17-0.251.2-1.6≤ 0.050≤ 0.0500.40-0.80
3SP0.14-0.220.40-0.85≤ 0.050≤ 0.0400.05-0.15
5SP0.28-0.370.50-1.00≤ 0.050≤ 0.0400.15-0.30
 

Square Steel Billet Q235 Grade Prime Quality 3#

FAQ of Square Steel Billet Q235 Grade Prime Quality 3#

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?
  Our delivery time about 15-20days for standard sizes, if you have other requirements like hardness, quanity and width ,it is about 20-40days. But don't worry we also try our best for the delivery time ,because time longer and our cost is higher.


Q:What are the main factors affecting the surface finish of steel billets?
Several key factors can be attributed to the surface finish of steel billets. Firstly, the quality and cleanliness of the raw materials used in the steelmaking process play a significant role. Surface defects and imperfections can occur if there are impurities or contaminants in the raw materials. Secondly, the manufacturing process's processing parameters directly impact the surface finish. Factors like temperature, speed, and pressure can affect the formation of scale, oxidation, and other surface abnormalities. Excessive scaling can result from high temperatures, while inadequate scale removal can occur due to insufficient temperature control. Furthermore, the surface finish of steel billets is influenced by the type and condition of the equipment used for production. Abrasions, scratches, or other defects in the machinery can transfer onto the billets, affecting their surface quality. Regular maintenance and proper upkeep of the machinery are crucial to ensure a smooth and defect-free surface finish. Moreover, the choice and application of lubricants and coatings during the production process also impact the surface finish. These substances protect the billets from oxidation and reduce friction. However, incorrect application or the use of the wrong lubricant can lead to uneven coating, streaking, or other surface irregularities. Lastly, the handling and storage of steel billets after production can affect their surface finish. Mishandling, improper storage conditions, or exposure to moisture, chemicals, or contaminants can all contribute to surface defects and deterioration. In conclusion, the surface finish of steel billets is influenced by the quality of raw materials, processing parameters, equipment condition, lubricant and coating application, and proper handling and storage. By closely monitoring and optimizing these factors, manufacturers can achieve a high-quality surface finish that meets the desired specifications and requirements.
Q:What are the advantages of using steel billets in construction?
There are several advantages of using steel billets in construction: 1. Strength and Durability: Steel billets are known for their high strength and durability, making them ideal for construction purposes. They can withstand heavy loads and extreme weather conditions, ensuring the longevity and stability of the structure. 2. Versatility: Steel billets can be molded and shaped into various forms, allowing for flexibility in design and construction. This versatility makes them suitable for a wide range of applications, from beams and columns to framing and foundations. 3. Cost-effectiveness: Despite the initial cost of steel billets being higher than other construction materials, their long-term benefits outweigh the investment. Steel is low maintenance, doesn't require frequent repairs or replacements, and offers excellent fire resistance, reducing insurance costs. 4. Sustainability: Steel is a highly sustainable material due to its recyclability. Steel billets can be recycled and reused without losing their properties, reducing the demand for virgin materials and minimizing environmental impact. 5. Speed of construction: Steel billets are pre-fabricated, meaning they are manufactured off-site and then transported to the construction site. This significantly reduces construction time and allows for faster completion of projects. 6. Resistance to pests and rot: Unlike wood, steel billets are not susceptible to termites, pests, or rot. This eliminates the need for chemical treatments or regular inspections, saving both time and money. 7. Design flexibility: Steel billets offer a wide range of design possibilities, enabling architects and engineers to create unique and aesthetically pleasing structures. The ability to span large distances without the need for additional support columns allows for open floor plans and creative architectural designs. In summary, the advantages of using steel billets in construction include their strength, durability, versatility, cost-effectiveness, sustainability, speed of construction, resistance to pests and rot, and design flexibility. These factors make steel billets an excellent choice for various construction projects, ensuring sturdy and long-lasting structures.
Q:How do steel billets contribute to the overall vibration resistance of a structure?
Steel billets contribute to the overall vibration resistance of a structure by providing a strong and rigid framework. The high strength and stiffness of steel billets help to absorb and distribute dynamic loads, reducing the amplitude and impact of vibrations. This structural stability minimizes the risk of fatigue and damage caused by vibrations, ensuring the long-term integrity and durability of the structure.
Q:What are the different types of surface treatment methods used for steel billets?
Steel billets can undergo various surface treatment methods to serve specific purposes. Here are some commonly employed techniques: 1. Pickling: By immersing steel billets in an acidic solution, typically hydrochloric or sulfuric acid, any scale or oxide layers on the surface can be eliminated. Pickling enhances the surface finish and readies the steel for further processing. 2. Shot Blasting: This method involves propelling high-velocity small metal or ceramic particles onto the steel billet surface. The process effectively removes rust, scale, and contaminants, resulting in a clean and smooth finish. 3. Grinding: To eradicate imperfections from the steel billet surface, mechanical abrasive wheels are utilized. Grinding can achieve a specific surface roughness, making it ideal for precision and accuracy requirements. 4. Acid Etching: By applying an acid solution to the steel billet surface, a controlled roughness or texture can be created. This enhances subsequent coating or paint adhesion. 5. Galvanizing: A layer of zinc is applied to the steel billets in this popular method. Zinc acts as a sacrificial barrier, providing excellent corrosion resistance and protecting the underlying steel from oxidation. 6. Powder Coating: Electrostatically applying a dry powder to the steel billet surface characterizes this technique. Upon heating, the powder melts and forms a protective layer known for its durability, corrosion resistance, and ability to offer diverse decorative finishes. 7. Passivation: This chemical process aims to enhance the corrosion resistance of stainless steel billets. It involves eliminating iron contaminants and forming a passive oxide layer that safeguards the steel from oxidation. These examples represent only a fraction of the surface treatment methods available for steel billets. The selection of a method depends on factors like desired surface finish, intended steel application, and required level of corrosion resistance.
Q:How are steel billets inspected for hardness?
Various methods and techniques are used to inspect the hardness of steel billets. Among these methods, the Rockwell hardness test is commonly employed. This test measures the depth of penetration of an indenter into the steel surface under a specific load to determine the hardness value. It is a quick and reliable way to assess the hardness of steel billets. Another method used for hardness inspection is the Brinell hardness test. This test involves applying a specific load on a hardened steel ball and measuring the diameter of the resulting indentation on the steel surface. The hardness value is calculated based on the applied load and the diameter of the indentation. The Brinell hardness test is useful for large steel billets or when a larger area needs to be tested. Additionally, the Vickers hardness test can be employed to inspect the hardness of steel billets. This method uses a diamond pyramid-shaped indenter to create an impression on the steel surface. The diagonals of the impression are measured, and the hardness value is determined based on the applied load and the surface area of the impression. The Vickers hardness test is commonly used for materials with high hardness or small components. In addition to these traditional hardness testing methods, advanced techniques such as ultrasonic testing and magnetic induction are also available. Ultrasonic testing involves sending high-frequency sound waves through the steel billet and measuring the time it takes for the waves to be reflected back. Any variations in the hardness of the billet can be detected through changes in the ultrasonic waves. On the other hand, magnetic induction utilizes magnetic fields to assess the hardness of steel. By measuring the electrical conductivity and permeability of the steel billet, the hardness can be estimated. Overall, there are several techniques available for inspecting the hardness of steel billets, including Rockwell, Brinell, and Vickers hardness tests, as well as ultrasonic testing and magnetic induction. These methods provide valuable information about the hardness properties of the billets, enabling manufacturers to ensure the quality and suitability of the steel for various applications.
Q:How do steel billets contribute to the energy industry?
Steel billets contribute to the energy industry by being used in the construction of various infrastructure components, such as pipelines, power plants, and wind turbines. These billets are a crucial raw material for manufacturing these structures, ensuring their strength, durability, and longevity. Additionally, steel billets are used in the production of equipment and machinery for the extraction, transportation, and refinement of fossil fuels, as well as in the manufacturing of renewable energy technologies.
Q:What is the role of steel billets in the manufacturing of fasteners?
Steel billets play a crucial role in the manufacturing of fasteners as they serve as the raw material from which fasteners are produced. These billets are heated, molded, and shaped into various forms such as bolts, screws, and nails. The high strength and durability of steel make it an ideal material for fasteners, ensuring that they can withstand the loads and stresses they are subjected to in various applications.
Q:How do steel billets contribute to the manufacturing of HVAC systems?
The role of steel billets in the manufacturing of HVAC systems is crucial. These systems rely on strong and durable components to ensure efficient operation and longevity, and steel billets serve as the foundation for such components. To begin with, steel billets are utilized to construct the primary structural framework of HVAC systems. This framework, also known as the casing or housing, offers support and protection for the internal components including heat exchangers, fans, and coils. Steel billets possess high strength and rigidity, making them an ideal choice for creating a sturdy and dependable framework that can withstand the various stresses and strains encountered during system operation. Furthermore, steel billets are employed in the production of various internal components of HVAC systems. For instance, steel billets are commonly used to manufacture heat exchangers, which play a crucial role in transferring heat between the air and the refrigerant. Steel's high thermal conductivity and corrosion resistance make it an excellent material for these critical components, ensuring efficient heat transfer and long-term performance. Moreover, steel billets are utilized in the manufacturing of ductwork. Ductwork consists of a network of pipes or channels that distribute conditioned air throughout a building. Steel billets are often rolled and formed into the necessary shapes to create the ducts. The strength and durability of steel guarantee that the ductwork can withstand the pressure differentials and mechanical stresses associated with air movement, thereby maintaining the integrity of the system and preventing leaks. Additionally, steel billets are essential for the production of HVAC system supports and brackets. These components are responsible for securely mounting various equipment, such as air handling units or condensing units. Steel's strength and load-bearing capacity make it an ideal material for ensuring the stability and proper installation of these crucial elements. In conclusion, steel billets are vital in the manufacturing of HVAC systems as they provide the necessary strength, durability, and thermal properties for the structural framework, internal components, ductwork, and supports. Without steel billets, it would be extremely challenging to produce HVAC systems that deliver efficient heating, ventilation, and air conditioning to buildings.
Q:What shape is the billet?
Material standardThickness range: 150-240mm +/-5mm, width range: 880-1530mm +/-20mmLength range: 3700-10000mm +/-500mmCross section size: 64*64; 82*82; 98*98; 124*124; 152*170mm; 120*150; 152*164;Length: 9000mmSection tolerance: square billet: +1.0/-2.0----+3.0/-1.0mm slab: width: +/-2.0MM thickness: +/-3.0MMLength tolerance: +/-200MMDiagonal tolerance of section: 3.5-8.0MMBillet cross section dimension requirements: <1242MM, not allowed; =1242MM, <=2MM, >1242MM, <=3MMBreaking (shear) expansion deformation: <1242MM square billet: no control; slab: <=15MMSurface inclination: no more than 0.1 of the bloomBending length: not more than 10MM per 1MTwist: length <=5M, <=11. Length <=7.5M, <=5.Material 3SP/PS, chemical composition,%:C, Mn, Si, S, P
Q:What are the different surface treatments for improved corrosion resistance in steel billets?
There are several surface treatments commonly used to improve corrosion resistance in steel billets. These include hot-dip galvanizing, electroplating, powder coating, and chromate conversion coating. Hot-dip galvanizing involves immersing the steel billets in a bath of molten zinc, forming a protective zinc coating on the surface. Electroplating uses an electric current to deposit a thin layer of a corrosion-resistant metal, such as zinc or nickel, onto the billet's surface. Powder coating involves applying a dry powder coating to the billet's surface, which is then cured to form a protective layer. Chromate conversion coating is a chemical treatment that forms a thin layer of chromate on the surface, providing corrosion resistance. Each of these treatments offers varying levels of protection and is selected based on the specific requirements and conditions of the steel billets.

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