Bs4449 Deformed Steel Bar with All Sizes

Bs4449 Deformed Steel Bar with All Sizes System 1

Bs4449 Deformed Steel Bar with All Sizes System 2

Bs4449 Deformed Steel Bar with All Sizes System 3

Bs4449 Deformed Steel Bar with All Sizes

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 50000 m.t./month

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Bs4449 Deformed Steel Bar with All Sizes

Description of Bs4449 Deformed Steel Bar:

1, Diameter: 5.5mm-10mm rounds reinforcing steel bar

10m- 40 rods reinforcing Bs4449 Deformed Steel Bar

2, Length: 6m, 9m, 12m or customized

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

OEM technology - send detailed technical parameters for accurate quotation.

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

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.

Chemical Composition of Bs4449 Deformed Steel Bar:

Grade	Technical data of the original chemical composition(%)
Reinforcing steel bar HRB335	C	Mn	Si	S	P	B
	≤0.25	≤1.60	≤0.80	≤0.045	≤0.045	>0.0008
	Physics Capability
	Yield Strength(N/cm2)	Tensile Strength(N/cm2)	Elongation(%)
	≥ 335	≥490	≥16
Reinforcing steel bar HRB400	C	Mn	Si	S	P	B
	≤0.25	≤0.16	≤0.80	≤0.045	≤0.045	0.04-0.12
	Physics Capability
	Yield Strength(N/cm2)	Tensile Strength(N/cm2)	Elongation(%)
	≥ 400	≥ 570	≥ 14

Product Show of Bs4449 Deformed Steel Bar:

Company Information:

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

Verified Suppliers Bs4449 Deformed Steel Bar Manufacturer

FAQ:

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

5, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Q:How does special steel contribute to the magnetic properties of products?: Special steel contributes to the magnetic properties of products through its unique composition and structure. Special steel, also known as alloy steel, contains specific elements such as nickel, chromium, manganese, and molybdenum, which alter its magnetic behavior. These elements can enhance or suppress the magnetism of the steel, depending on the desired application. For example, when nickel is added to steel, it increases its magnetic permeability, making it more receptive to magnetic fields. This property is particularly useful in applications like transformers, where the steel core needs to efficiently conduct magnetic flux. Similarly, the addition of other magnetic elements like cobalt or iron can also enhance the magnetic properties of special steel. On the other hand, certain elements can reduce or eliminate the magnetic properties of steel. Chromium, for instance, is known for its anti-magnetic characteristics. By adding chromium to steel, it can decrease its magnetic permeability, making it suitable for applications that require non-magnetic qualities, such as medical equipment or electronics. Furthermore, the structure of special steel also plays a crucial role in its magnetic properties. Through various heat treatment processes, the steel's crystalline structure can be manipulated, affecting its magnetization. For instance, by annealing the steel, the crystal grains can be made larger, reducing its magnetization. Conversely, cold working or quenching the steel can lead to a finer grain structure, enhancing its magnetic properties. In summary, special steel contributes to the magnetic properties of products by incorporating specific elements that either enhance or suppress magnetism, depending on the application requirements. Additionally, the steel's structure can be modified through heat treatments, further influencing its magnetization. The ability to tailor the magnetic properties of special steel makes it a valuable material for various industries, including telecommunications, energy, and electronics.

Q:What are the different heat treatment processes for special steel?: There are several different heat treatment processes for special steel, including annealing, quenching, tempering, case hardening, and precipitation hardening.

Q:How does special steel perform in dynamic loading conditions?: Thanks to its high strength, toughness, and fatigue resistance, special steel excels in dynamic loading scenarios. When exposed to repeated and fluctuating stresses, special steel can endure the impact and maintain its mechanical properties without any setbacks or distortions. The distinct composition and processing techniques employed in the production of special steel, including the addition of alloying elements and heat treatment, significantly bolster its ability to withstand dynamic loading. Consequently, special steel proves to be an optimal material for applications that involve dynamic forces, such as automotive components, machinery parts, and structural elements utilized in construction. The exceptional performance of special steel under dynamic loading conditions guarantees durability, reliability, and safety across various industries.

Q:How does special steel perform under high-temperature oxidation?: Special steel is engineered to exhibit outstanding performance when exposed to high temperatures, particularly in terms of oxidation. It is fabricated utilizing alloys that possess a significant quantity of chromium, which generates a shielding chromium oxide layer on the steel's surface once confronted with elevated temperatures. This chromium oxide layer acts as a barrier, thwarting further oxidation and safeguarding the steel against corrosion. The generous amount of chromium present in special steel also heightens its resistance to scaling, which refers to the development of thick layers of oxide on the steel's surface. Scaling can compromise the steel's integrity and result in failure when subjected to high temperatures. Nonetheless, special steel retains its structural soundness even at elevated temperatures due to its capacity to resist scaling. Apart from chromium, special steel may contain additional alloying elements like nickel, molybdenum, and vanadium. These elements contribute to the steel's resistance to high-temperature oxidation by further augmenting the formation and stability of the protective oxide layer. Overall, special steel exhibits exceptional performance under high-temperature oxidation circumstances. Its distinctive composition and alloying elements enable it to establish a protective oxide layer, resist scaling, and retain its strength and integrity even at elevated temperatures. As a result, it is extensively utilized in various industries that involve high-temperature applications, including power generation, aerospace, and petrochemical industries.

Q:What are the different material selection factors for special steel?: To ensure the desired performance, durability, and cost-effectiveness of the final product, engineers and designers must consider various factors when selecting materials for special steel. Key factors include mechanical properties, corrosion resistance, heat resistance, machinability, weldability, cost, availability, and environmental impact. 1. Mechanical Properties: Special steel must possess the necessary mechanical properties to meet the demands of the specific application. This includes strength, hardness, toughness, fatigue resistance, and wear resistance. 2. Corrosion Resistance: Depending on the intended use, special steel may need to have high corrosion resistance to withstand harsh environments, chemicals, or moisture. This ensures the longevity and reliability of the steel in its intended application. 3. Heat Resistance: Special steel may need to exhibit excellent heat resistance, especially for applications involving high temperatures like aerospace or power generation industries. The material should retain its strength and structural integrity even at elevated temperatures. 4. Machinability: The ease of machining special steel is crucial, especially for applications involving complex shapes or precision components. High machinability allows for efficient manufacturing processes and reduces production costs. 5. Weldability: Special steel selected for applications requiring welding should have good weldability. This ensures that the material can be easily welded without compromising strength or introducing defects. 6. Cost: The cost of the material plays a significant role in material selection. Engineers and designers must balance desired properties with the available budget to achieve optimal cost-effectiveness. 7. Availability: Ensuring a reliable and consistent supply of the chosen special steel is vital to avoid production delays or interruptions. 8. Environmental Impact: The environmental impact of the material should be evaluated, considering factors such as energy consumption during production, recyclability, and the use of sustainable raw materials. Opting for eco-friendly materials aligns with sustainable practices and regulations. By carefully considering these material selection factors, engineers and designers can choose the most suitable special steel for their specific application, ensuring optimal performance, durability, and cost-efficiency.

Q:What are the different surface hardening methods used for special steel?: There are several different surface hardening methods that are commonly used for special steel. These methods are employed to improve the hardness and wear resistance of the steel, making it suitable for specific applications. Some of the most commonly used surface hardening methods for special steel include: 1. Carburizing: Carburizing is a heat treatment process that involves introducing carbon into the surface of the steel. This is typically done by heating the steel in a carbon-rich environment, such as a gas or liquid containing carbon. The carbon diffuses into the steel, forming a high-carbon layer on the surface. This process increases the hardness and wear resistance of the steel, making it suitable for applications that require high strength and durability. 2. Nitriding: Nitriding is a surface hardening process that involves introducing nitrogen into the surface of the steel. This is typically done by heating the steel in an atmosphere of ammonia gas. The nitrogen diffuses into the steel, forming a nitride layer on the surface. Nitrided steel exhibits high hardness, improved wear resistance, and increased fatigue strength. This method is commonly used for applications that require high surface hardness, such as gears, bearings, and tools. 3. Induction hardening: Induction hardening is a localized surface hardening method that involves heating only specific areas of the steel using electromagnetic induction. The heated areas are then rapidly quenched, resulting in a hardened surface layer. Induction hardening is often used for components that require high surface hardness, such as shafts, gears, and camshafts. It offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. 4. Flame hardening: Flame hardening is a surface hardening method that involves heating the steel surface using a high-temperature flame and then rapidly quenching it. The localized heating and quenching process produces a hard surface layer, while the core of the steel remains relatively unchanged. This method is commonly used for large and complex-shaped components, such as axles, crankshafts, and machine tool slides. 5. Laser hardening: Laser hardening is a precise and localized surface hardening method that involves using a high-energy laser beam to heat and melt the surface of the steel. The laser beam is moved across the surface to create a hardened layer. Laser hardening offers precise control over the hardened area, resulting in improved wear resistance and fatigue strength. It is commonly used for small and intricate components, such as cutting tools, molds, and dies. These are just a few of the surface hardening methods commonly used for special steel. Each method offers unique advantages and is chosen based on the specific requirements of the application. By employing these surface hardening methods, special steel can be tailored to meet the demands of various industries, including automotive, aerospace, and manufacturing.

Q:What is the role of special steel in the oil and gas industry?: Special steel plays a crucial role in the oil and gas industry as it is used in various critical applications. It provides high strength, corrosion resistance, and durability, making it suitable for manufacturing drilling equipment, pipelines, valves, and offshore structures. Special steel's ability to withstand extreme conditions, such as high pressure and temperature, ensures the safety and reliability of oil and gas operations, ultimately supporting the efficient exploration, extraction, and transportation of these resources.

Q:How is wear-resistant steel used in mining equipment?: Wear-resistant steel is commonly used in mining equipment to enhance their durability and longevity. It is specifically designed to withstand the harsh conditions and abrasive environments typically found in mining operations. Components such as buckets, blades, chutes, crushers, and screens are often made from wear-resistant steel to prevent excessive wear and damage caused by rocks, minerals, and other abrasive materials. This steel's high hardness and toughness properties ensure that the equipment can withstand the constant impact and abrasion, reducing maintenance needs and extending the equipment's lifespan.

Q:Classification of special steel products: Carbon steel, also called carbon steel, is an iron carbon alloy with a carbon content of less than 2% wc. Carbon steel, in addition to carbon, usually contains a small amount of silicon, manganese, sulfur and phosphorus.Carbon steels can be divided into three categories: carbon structural steel, carbon tool steel and free cutting structural steel by use. Carbon structural steel can be divided into two kinds of structural steel and machine building steel.

Q:What are the different production methods for special steel?: There are several production methods for special steel, including electric arc furnace (EAF), basic oxygen furnace (BOF), and vacuum arc remelting (VAR). Each method has its own advantages and is used depending on the specific requirements of the steel being produced. EAF is commonly used for recycling scrap steel and allows for flexibility in alloy composition. BOF is more suitable for large-scale production and is known for its efficiency in removing impurities. VAR is a specialized method used to refine and purify steel, resulting in high-quality, homogeneous products.

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