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: What kind of nuts do you need for round 20 rounds?: The nut is connected to mechanical equipment parts, through the inside of the thread, the same specifications of nuts and bolts to connect together, such as M4-P0.7 and M4-P0.7 only bolt nut series connection (nut, M4 nut diameter is about 4mm, 0.7 fingers between the two thread distance of 0.7mm); US made products as well, such as screw nut only with the 1/4-20 1/4-20's collocation (1/4 refers to the nut inner diameter is about 0.25 inches, 20 inches each, 20 teeth).Self locking nut, lock nut, locking nut, four claw nut, the nut is screwed into the nut, screw rod nut insurance connecting nut cap nut six self-locking angle of anchor bolt with nut, six special angle crown thin nut eyenut.

Q: Are steel round bars suitable for use in the automotive industry?: Indeed, the automotive industry finds steel round bars to be a fitting option. Steel round bars possess numerous advantages that render them an ideal choice for automotive applications. Primarily, steel round bars exhibit exceptional strength and durability, which are vital characteristics for automotive components that must endure significant levels of stress and impact. The high tensile strength of steel guarantees that these components can handle the demanding conditions of the automotive industry, including heavy loads and harsh environments. Additionally, steel round bars offer favorable machinability, enabling them to be easily shaped and fabricated into a variety of automotive parts. This versatility is crucial for producing components with intricate geometries, such as crankshafts, axles, and suspension parts. Furthermore, steel round bars present superior dimensional stability, ensuring that automotive parts retain their shape and performance over time. This is particularly crucial for critical components that must meet precise specifications and tolerances. Moreover, steel round bars boast excellent heat resistance, allowing them to be used in applications that involve high temperatures, such as engine components and exhaust systems. The thermal stability of steel ensures that these parts can operate efficiently and reliably under extreme heat conditions. Furthermore, steel is readily available and cost-effective when compared to other materials, making it an appealing option for the automotive industry. The abundance of steel resources and the well-established manufacturing processes contribute to its affordability, making it a practical choice for mass production. In conclusion, steel round bars are highly suitable for use in the automotive industry due to their strength, durability, machinability, dimensional stability, heat resistance, and cost-effectiveness. These qualities make steel round bars an excellent choice for various automotive components, thereby enhancing the overall performance, safety, and longevity of vehicles.

Q: What are the common sizes of steel round bars?: The common sizes of steel round bars vary, but some frequently used diameters range from 1/4 inch to 12 inches.

Q: Can steel round bars be used in the production of gears?: Yes, steel round bars can be used in the production of gears. Steel round bars are commonly used as raw material for manufacturing gears due to their high strength, durability, and excellent mechanical properties. They can be machined, heat treated, and shaped into the desired gear profiles, making them suitable for various applications in industries such as automotive, machinery, and manufacturing.

Q: What is the corrosion resistance of steel round bars?: The corrosion resistance of steel round bars depends on the specific type of steel used and any additional coatings or treatments that have been applied. Generally, stainless steel round bars have excellent corrosion resistance due to their high levels of chromium and nickel, which form a protective oxide layer on the surface. However, carbon steel round bars are more susceptible to corrosion and may require additional protection such as galvanization or painting to enhance their resistance.

Q: How do you prevent rust on steel round bars?: To prevent rust on steel round bars, there are several effective methods you can employ: 1. Apply a protective coating: One of the most common ways to prevent rust is by applying a protective coating such as paint, varnish, or enamel. These coatings act as a barrier, preventing moisture and oxygen from reaching the steel surface and causing rust. 2. Galvanization: Galvanizing steel round bars involves coating them with a layer of zinc. This process creates a protective barrier, as the zinc acts as a sacrificial anode, corroding instead of the steel. Galvanized steel is highly resistant to rust and is commonly used in outdoor applications. 3. Powder coating: Powder coating is another effective method of preventing rust on steel round bars. In this process, a dry powder is electrostatically applied to the steel surface, which is then cured under heat. The resulting coating provides excellent protection against rust and corrosion. 4. Regular cleaning and maintenance: Regularly cleaning your steel round bars and removing any dirt, moisture, or other corrosive substances can help prevent rust. Additionally, applying a rust inhibitor or lubricant can further protect the steel from corrosion. 5. Proper storage: Storing steel round bars in a dry and well-ventilated area can significantly reduce the risk of rust. Avoid storing them directly on the ground or in areas prone to moisture. Using pallets or racks to keep the steel elevated and properly spaced can also help prevent rust formation. 6. Avoid exposure to harsh environments: Exposing steel round bars to harsh environments, such as saltwater or acidic chemicals, significantly increases the risk of rust. If possible, try to protect the steel from prolonged exposure to these substances or consider using a more corrosion-resistant material in such conditions. By implementing these preventive measures, you can effectively reduce the likelihood of rust formation on steel round bars, ensuring their longevity and maintaining their structural integrity.

Q: What is the difference between a solid round bar and a hollow round bar?: A cylindrical shape, known as a solid round bar, consists of a single material, typically metal or plastic. It maintains a consistent diameter throughout its length, without any empty space inside. In contrast, a hollow round bar also has a cylindrical shape but contains a hollow space within its center. This hollow space creates a tube-like structure within the bar. The outer diameter remains constant, but the inner diameter varies depending on the design and purpose of the hollow round bar. The primary distinction between a solid round bar and a hollow round bar lies in their structural characteristics and potential uses. The solid round bar offers strength and rigidity due to its solid core, making it suitable for applications requiring robust support or load-bearing capabilities. It finds common usage in construction, manufacturing, and engineering projects where strength and durability are vital. Conversely, the hollow round bar combines strength with a lightweight design. The presence of the hollow space reduces the overall weight while maintaining structural integrity. This makes hollow round bars ideal for applications prioritizing weight reduction, such as in the aerospace, automotive, and marine industries. Furthermore, the hollow space can serve various purposes, such as facilitating the passage of fluids, wires, or other components through the bar. In conclusion, while both solid and hollow round bars possess a cylindrical shape, the presence or absence of a hollow space distinguishes them. Solid round bars offer strength and rigidity, while hollow round bars strike a balance between strength and reduced weight, with the potential for additional functionality. The choice between the two depends on the specific requirements and intended application of the bar.

Q: What is the tensile strength of a steel round bar?: The tensile strength of a steel round bar depends on various factors such as the specific grade of steel, the manufacturing process, and any additional treatments or coatings applied. Generally, steel round bars have high tensile strength due to their composition and structural design. The specific tensile strength can vary significantly depending on the grade of steel. For example, low carbon steel typically has a tensile strength of around 400-550 MPa (megapascals), while high carbon steel can have a tensile strength of 700-1000 MPa or even higher. It's worth noting that the tensile strength of a steel round bar can be further enhanced by heat treatment processes such as quenching and tempering, which can significantly increase its strength and hardness. Additionally, certain alloying elements like chromium, nickel, and molybdenum can be added to steel to improve its tensile strength and other mechanical properties. To determine the exact tensile strength of a specific steel round bar, it is crucial to refer to the manufacturer's specifications or consult relevant industry standards such as ASTM (American Society for Testing and Materials) or AISI (American Iron and Steel Institute) standards. These standards provide detailed information on the mechanical properties, including tensile strength, for various grades of steel.

Q: What are the advantages of using chromium-alloy steel round bars?: There are several advantages to using chromium-alloy steel round bars. Firstly, chromium-alloy steel round bars have excellent corrosion resistance properties. The addition of chromium to the steel increases its ability to withstand corrosion and oxidation, making it suitable for use in harsh environments or applications where exposure to moisture or chemicals is a concern. This corrosion resistance helps to prolong the lifespan of the round bars, reducing maintenance and replacement costs. Secondly, chromium-alloy steel round bars offer high strength and durability. The alloying of chromium with steel enhances its mechanical properties, such as tensile strength, hardness, and toughness. This makes chromium-alloy steel round bars ideal for applications that require high strength and resistance to wear and tear, such as construction, heavy machinery, and automotive industries. Another advantage of using chromium-alloy steel round bars is their heat resistance. The addition of chromium improves the heat resistance of the steel, allowing it to maintain its strength and structural integrity even at elevated temperatures. This makes it suitable for use in high-temperature applications, such as furnace components, boilers, and heat exchangers. Furthermore, chromium-alloy steel round bars are known for their excellent machinability. The alloying elements in the steel enhance its ability to be easily machined, allowing for precise shaping and finishing. This makes it easier and more cost-effective to manufacture complex components or parts using chromium-alloy steel round bars. Lastly, chromium-alloy steel round bars are readily available in the market. Due to their popularity and wide range of applications, chromium-alloy steel round bars can be easily sourced from various suppliers. This availability ensures a consistent supply of the material, reducing production downtime and lead times. Overall, the advantages of using chromium-alloy steel round bars include corrosion resistance, high strength and durability, heat resistance, excellent machinability, and availability. These properties make chromium-alloy steel round bars a versatile and reliable choice for a wide range of applications in various industries.

Q: Can steel round bars be recycled?: Yes, steel round bars can be recycled. Steel is a highly recyclable material, and the recycling process involves melting the steel bars down to be used in the production of new steel products.

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