Good Quality Round Steel

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Specifications

1.EF+EAF+LF+VD+ESR
2.Competitive price
3.ISO&IQNet certificate
4.Excellent hardenability
5.P/S lessthan 0.020

Cold Work Tool Steel 1.2379, Alloy Steel Round Bars 1.2379, Din 1.2379 Steel Rod

Chemical composition 1.2379 round bar

Equivalent grades
GB	DIN	AISI	JIS	BS
Cr12Mo1V1	1.2379	D2	SKD11	BD2

Chemical composition
C	Si	Mn	Cr	P	S	V	Mo
1.50-1.60	0.10-0.40	0.15-0.45	11.50-12.50	0.03MAX	0.03MAX	0.90-1.10	0.60-0.80

Specification

Round bar	Diameter (mm)	Length (mm)
Round bar	50~500	2000~5800
plate/sheet	Thickness (mm)	Width (mm)	Length (mm)
plate/sheet	20~400	80~1000	2000~5800

Steel Surface

Steel Sharp	Surface treatment
Round bar	Black/Grinding/Polished/Peeled/Turned
steel plate	Black/Milling/Machined

Characteristic 1.2379

1.High hot strength and hardness.

2.Good toughness and abrasion resistance.

3.Heat treatment deformation small

Finished goods condition: 1.2379 hot forging/hot rolling + annealing/normalizing +

tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions: rough machining/fine machining/based on the customer's requirement

Ultrasonic inspection: 100% UT acco to En1921D/d or based on the customer's requirement

Q: Can steel round bars be coated with protective finishes?: Yes, steel round bars can be coated with protective finishes. These finishes help to prevent corrosion, enhance durability, and provide additional resistance to wear and tear. Common protective finishes for steel round bars include coatings such as galvanization, powder coating, and epoxy coatings.

Q: 20 round bars are of several grades: At different levels of chemical composition, because of the reinforcing of different chemical composition of the steel, the mechanical indicator will be different. One, two, according to the social needs of Sansteel production power and the development of the material standard, the yield strength, ultimate strength, elongation, low temperature, and weldability are very different, different levels of steel position also have great cooperation. First grade steel yield strength 235MPa, ultimate strength 310MPa, grade two steel yield strength 335MPa, ultimate strength 510MPa, grade three steel yield strength 400MPa, ultimate strength 600MPa.

Q: What are the advantages of using silicon-alloy steel round bars?: There are several advantages of using silicon-alloy steel round bars. Firstly, silicon-alloy steel has enhanced strength and durability, making it suitable for demanding applications and heavy-duty industries. Secondly, the addition of silicon improves the steel's resistance to corrosion and oxidation, increasing its lifespan and reducing maintenance costs. Additionally, silicon-alloy steel round bars offer excellent heat resistance, making them ideal for high-temperature environments. Furthermore, these round bars have good machinability and weldability, allowing for easy fabrication and customization. Overall, the advantages of silicon-alloy steel round bars include increased strength, improved corrosion resistance, enhanced heat resistance, and ease of fabrication.

Q: Can steel round bars be used in the automotive industry?: Yes, steel round bars can be used in the automotive industry. Steel round bars are commonly used to make various automotive components such as axles, crankshafts, and suspension parts due to their high strength, durability, and ability to withstand heavy loads.

Q: What are the different surface conditions for steel round bars?: Steel round bars can come in a variety of surface conditions depending on their intended use and manufacturing process. Some common surface conditions for steel round bars include: 1. Hot Rolled: This is the most common surface condition for steel round bars. It is achieved by heating the steel above its recrystallization temperature and then rolling it through a series of hot rolling mills. This process gives the steel a rough surface with a scale layer that needs to be removed. 2. Cold Drawn: In this surface condition, the steel round bars are pulled through a die at room temperature, which results in a smoother and more precise surface finish. Cold drawn bars have improved dimensional accuracy and surface quality compared to hot rolled bars. 3. Peeled: Steel round bars can also be peeled to remove the scale layer and achieve a smooth surface finish. This process involves rotating the bar against a cutting tool, which results in a clean and bright surface. 4. Ground: Grinding is another method used to achieve a smooth surface finish on steel round bars. It involves removing material from the surface using abrasive belts or wheels, resulting in a precise and consistent surface. 5. Polished: Polishing is a surface treatment that further enhances the appearance and smoothness of steel round bars. It involves using abrasive compounds and buffing wheels to create a reflective and mirror-like finish. 6. Coated: Steel round bars can be coated with various materials to improve their corrosion resistance or enhance their appearance. Common coatings include zinc, chrome, nickel, and various types of paint. The choice of surface condition for steel round bars depends on the specific application and the desired properties. Each surface condition offers different advantages in terms of appearance, corrosion resistance, and mechanical properties.

Q: Can steel round bars be heat treated to improve their mechanical properties?: Yes, steel round bars can be heat treated to improve their mechanical properties. Heat treatment is a process that involves heating the steel to a specific temperature, holding it at that temperature for a certain period of time, and then cooling it rapidly or slowly. This process can alter the microstructure of the steel, resulting in changes to its hardness, strength, toughness, and other mechanical properties. There are several types of heat treatment processes that can be used on steel round bars, depending on the desired outcome. For example, annealing is a heat treatment process that involves heating the steel to a specific temperature and then slowly cooling it. This process helps to relieve internal stresses in the steel, improve its ductility, and make it easier to machine. Another common heat treatment process is quenching and tempering. This involves heating the steel to a specific temperature and then rapidly cooling it, usually by immersing it in a quenching medium such as oil or water. This rapid cooling process helps to harden the steel, making it stronger and more resistant to wear and abrasion. After quenching, the steel is often tempered by reheating it to a lower temperature, which helps to reduce its brittleness and improve its toughness. In addition to annealing and quenching and tempering, other heat treatment processes such as normalizing, case hardening, and precipitation hardening can also be used to improve the mechanical properties of steel round bars. These processes involve different heating and cooling techniques, and are used to achieve specific outcomes based on the desired properties of the steel. Overall, heat treatment is a versatile and effective method for improving the mechanical properties of steel round bars. By carefully controlling the heating and cooling process, it is possible to achieve significant improvements in hardness, strength, toughness, and other properties, making the steel suitable for a wide range of applications.

Q: What are the advantages of using creep-resistant steel round bars?: Using creep-resistant steel round bars in various applications has several advantages. Firstly, these bars offer exceptional resistance to high temperatures and prolonged stress exposure, making them ideal for high temperature environments such as power plants, boilers, and engines. Their ability to maintain their mechanical properties at elevated temperatures is a key advantage. Secondly, these round bars possess superior creep strength, allowing them to endure constant stress over extended periods without deformation or failure. This is particularly crucial in applications where components are subjected to continuous stress, such as pressure vessels or structural machinery. The high creep strength ensures the longevity and reliability of these components. Additionally, creep-resistant steel round bars exhibit excellent corrosion resistance. They are often alloyed with elements like chromium, molybdenum, or nickel, enhancing their ability to resist corrosion in harsh environments. This makes them suitable for industries like oil and gas, chemical processing, and marine applications where corrosion is a significant concern. Furthermore, these round bars possess favorable weldability, facilitating easy fabrication and assembly. They can be welded to other components without compromising their mechanical properties, making them versatile and cost-effective for construction projects. Moreover, these round bars offer dimensional stability and high hardness, guaranteeing that components maintain their shape and mechanical properties even under extreme conditions. This characteristic makes them suitable for applications requiring precision and accuracy, such as aerospace and automotive industries. In conclusion, the advantages of using creep-resistant steel round bars include their ability to withstand high temperatures, superior creep strength, corrosion resistance, weldability, dimensional stability, and high hardness. These advantages make them the preferred choice for various industries where reliability, longevity, and performance under harsh conditions are essential considerations.

Q: Can steel round bars be heat treated?: Yes, steel round bars can be heat treated. Heat treatment involves subjecting the steel to a specific heating and cooling process to alter its physical and mechanical properties, such as hardness, strength, and ductility. This process can be applied to steel round bars to enhance their performance for various applications.

Q: How do steel round bars compare to glass round bars?: Steel round bars are significantly stronger and more durable compared to glass round bars. Steel is a metallic material that offers high tensile strength and can withstand heavy loads, making it suitable for structural applications. On the other hand, glass round bars are more fragile and prone to breakage under stress. However, glass round bars have a more aesthetic appeal and are commonly used in decorative applications. The choice between steel and glass round bars depends on the specific requirements of the project, with steel being preferred for strength and glass for its visual qualities.

Q: Can steel round bars be used in the fabrication of machinery?: Certainly, machinery fabrication can indeed utilize steel round bars. In the manufacturing industry, steel round bars are widely employed for a multitude of purposes, including the creation of machinery and equipment components. They possess numerous favorable qualities that render them suitable for this application. To begin with, steel round bars offer exceptional strength and durability. They are renowned for their high tensile strength, enabling them to withstand heavy loads and resist deformation. This strength is crucial in machinery fabrication, as the components must endure the stresses and forces encountered during operation. Moreover, steel round bars possess excellent machinability, allowing them to be easily shaped and formed into desired machinery components. This versatility permits the creation of intricate and complex machine parts. Furthermore, steel round bars exhibit remarkable resistance to corrosion and wear, which is vital in machinery fabrication. Machinery often operates in harsh environments or comes into contact with substances such as chemicals, oils, or abrasive materials. The corrosion and wear resistance of steel round bars ensure that the fabricated machinery can endure these conditions and maintain optimal performance over time. Lastly, steel round bars are readily available and cost-effective. They can be easily obtained from suppliers and manufacturers, making them a practical and economical choice for machinery fabrication. Overall, steel round bars are a favored and dependable material for machinery fabrication. Their strength, machinability, resistance to corrosion and wear, as well as their availability, make them an ideal option for creating durable and high-performing machine components.

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