Cold Drawn Steel Bars Round Square Rods System 1

Cold Drawn Steel Bars Round Square Rods

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Cold Drawn Steel Bars Round Square Rods

Product Information:

1, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN

2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet - hot rolled or forged to get the steel round bar and plate

3, Heat Treatment: annealing, normalizing, tempering, quenching

4, Surface Treatment: Black, Polished, Galvanized the picture of the products

5, Quality Assurance: We accept third party inspection for all orders.

You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.

Product Overviews:

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
	40 (1040/S40C/C40)
	45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
	GCr15 (52100/SUJ2/100Gr6)
	GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
	40Cr (5140/SCr440/41Cr4)
	42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
	20CrMn(5115/SMnC420/20MnCr5)
	20CrNiMo(8620/SNCM220/20CrMiMo2)

Product Show:

Cold Drawn Steel Bars Round Square Rods

Our Advantages:

· Industry experience over 20 years.

· Shipment of goods -More than 70 countries worldwide.

· The most convenient transport and prompt delivery.

· Competitive price with best service.

· High technical production line with top quality products.

· High reputation based on best quality products.

With our experienced, enthusiastic and dynamic staffs, we assure to bring you the products with best quality, reasonable prices and good after-sales services under the motto: Friends First, Business After.

Communication, Experience, Expertise and Best efforts are our Promises to you.

Q:Can special steel be used in the chemical processing equipment manufacturing industry?: Yes, special steel can be used in the chemical processing equipment manufacturing industry. Special steel is often used in this industry due to its superior corrosion resistance, high temperature resistance, and excellent mechanical properties. It can withstand the harsh chemical environments and extreme operating conditions typically found in chemical processing equipment.

Q:Is special steel suitable for manufacturing precision components?: Yes, special steel is indeed suitable for manufacturing precision components. Special steel possesses unique properties such as high strength, wear resistance, and excellent dimensional stability, making it ideal for producing components with precise and intricate designs. Additionally, its superior machinability and ability to withstand extreme conditions further enhance its suitability for manufacturing precision components.

Q:Can special steel be used in the renewable energy industry?: Yes, special steel can be used in the renewable energy industry. Special steel, such as corrosion-resistant or high-strength steel, can be employed in various applications within the renewable energy sector. For instance, it can be used in the manufacturing of wind turbine components, solar panel frames, and hydroelectric infrastructure. The unique properties of special steel make it suitable for withstanding harsh environmental conditions and ensuring long-term durability and performance in renewable energy systems.

Q:How does special steel contribute to the defense industry?: Special steel contributes to the defense industry in various ways. Its exceptional strength, durability, and resistance to extreme conditions make it a crucial material for manufacturing components used in military vehicles, aircraft, and naval vessels. Special steel is also used in the production of armor plates and ballistic protection systems, providing enhanced protection to soldiers and military equipment. Additionally, its corrosion resistance properties make it ideal for constructing submarines, missiles, and other critical defense infrastructure. In summary, special steel plays a vital role in ensuring the reliability, performance, and safety of defense equipment, making it an indispensable asset for the defense industry.

Q:What are the common heat treatment methods used for special steel?: Special steel can undergo various heat treatment methods to enhance its mechanical properties and performance. Some commonly used techniques include: 1. Annealing: By heating the steel to a specific temperature and gradually cooling it, internal stresses are relieved and a refined microstructure is formed. This process improves the steel's machinability and ductility. 2. Normalizing: The steel is heated above its critical point and then cooled in still air. This method refines the grain structure, enhances toughness, and improves strength. 3. Quenching: Rapid cooling is achieved by immersing the steel in a quenching medium like water, oil, or polymer. It increases hardness and strength by forming a hard martensitic structure. However, quenching may introduce internal stresses and decrease toughness, so tempering is often performed afterwards. 4. Tempering: Quenched steel is reheated to a specific temperature and gradually cooled. This relieves internal stresses, reduces hardness, and improves toughness and ductility. Tempering also enhances resistance to brittle fracture. 5. Austempering: Steel is quenched to a temperature slightly above its martensitic transformation range, followed by holding it at this temperature until austenite transforms into bainite. This unique microstructure offers a combination of high strength and good toughness. 6. Martempering: Similar to austempering, but the steel is quenched just below its martensitic transformation range and held at that temperature until transformation is complete. Martempering produces a microstructure with improved strength and toughness compared to conventional quenching. These heat treatment methods are widely used to tailor special steel properties according to specific applications and requirements. The choice of method depends on factors such as desired mechanical properties, steel composition, and the intended use of the final product.

Q:Can special steel be used in the defense equipment manufacturing industry?: Yes, special steel can be used in the defense equipment manufacturing industry. Special steel is often chosen for its exceptional strength, durability, and resistance to wear and corrosion. These properties are crucial for manufacturing defense equipment that can withstand harsh environments and extreme conditions. Additionally, special steel can be tailored to specific requirements, allowing for the production of specialized defense equipment with enhanced performance and reliability.

Q:What are the factors that affect the corrosion resistance of special steel?: The factors that affect the corrosion resistance of special steel include the composition of the steel, the presence of alloying elements such as chromium and nickel, the surface finish and cleanliness, the presence of protective coatings or films, the pH and temperature of the environment, and the exposure time to corrosive agents. Additionally, the presence of impurities, such as sulfur and oxygen, can also impact the corrosion resistance of special steel.

Q:How is corrosion-resistant stainless tool steel used in the production of food processing equipment?: Corrosion-resistant stainless tool steel is used in the production of food processing equipment due to its ability to resist rust and corrosion caused by exposure to moisture, chemicals, and food acids. This steel is specifically designed to withstand the harsh conditions present in food processing environments, ensuring the equipment remains durable and hygienic. It is commonly used to manufacture blades, cutting tools, and various components of machines that come into direct contact with food. Its corrosion-resistant properties make it a reliable and safe choice for maintaining the quality and integrity of food during processing.

Q:What are the factors that determine the cost of special steel?: The cost of special steel is determined by several factors, including the type and grade of steel, the manufacturing process involved, the quantity and availability of raw materials, market demand and competition, transportation and logistics costs, and any additional customization or special specifications required by the customer.

Q:What is the role of special steel in the construction industry?: Special steel plays a crucial role in the construction industry as it provides strength, durability, and resistance to various environmental factors. It is commonly used in the construction of high-rise buildings, bridges, and infrastructure projects. Special steel's unique properties, such as high tensile strength, corrosion resistance, and heat resistance, make it suitable for critical applications where standard steel may not suffice. It ensures the structural integrity and safety of construction projects, making it an essential material in the industry.

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