D6 Cold Work Mould Steel Round Bars DIN1.2436

D6 Cold Work Mould Steel Round Bars DIN1.2436 System 1

D6 Cold Work Mould Steel Round Bars DIN1.2436 System 2

D6 Cold Work Mould Steel Round Bars DIN1.2436 System 3

D6 Cold Work Mould Steel Round Bars DIN1.2436 System 4

D6 Cold Work Mould Steel Round Bars DIN1.2436

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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Element	Content (%)
Iron, Fe	83.05
Chromium, Cr	12.5
Carbon, C	2.05
Tungsten, W	1.3
Manganese, Mn	0.8
Silicon, Si	0.3

Forging

D6 tool steel is heated slowly and uniformly to 700°C (1292°F) and then more rapidly to 900-1050°C (1652-1922°F).

Annealing

D6 tool steel is then annealed at 800-840°C (1472-1544°F) and cooled. Hardness of the steel after annealing will be approximately 225 Brinell.

Stress Relieving

Stresses from D6 tool steel can be eliminated before hardening by heating up to 650-700°C (1202-1292°F), if machining operations have been heavy. The steel is then allowed to cool slowly.

Hardening

D6 steel is pre-heated slowly to 750-800°C (1382-1472°F) and thoroughly soaked. Heating is then continued till the final hardening of 950-980°C (1742-1796°F), followed by air or oil quenching.

Tempering

The steel is heated uniformly and thoroughly at the selected tempering temperature. Double tempering can also be carried out with intermediate cooling to room temperature.

Main applications of D6 tool steels:

Forming tools
Molds for abrasive plastics and ceramics
Long-run press tools
Blanking and shearing tools for hard materials.

D6 Cold Work Mould Steel Round Bars DIN1.2436

Q: Are steel round bars corrosion resistant?: Yes, steel round bars can be corrosion resistant depending on the specific type of steel used and the conditions they are exposed to. Some types of steel, such as stainless steel, contain alloying elements like chromium which create a protective layer that helps prevent corrosion. However, not all steel round bars are inherently corrosion resistant and may require additional coatings or treatments to enhance their resistance to corrosion.

Q: How do steel round bars compare to brass round bars?: Steel round bars and brass round bars possess distinct characteristics that make them suitable for different purposes. To begin with, steel round bars exhibit superior strength and durability in comparison to brass round bars. Steel boasts a higher tensile strength, rendering it ideal for applications demanding resistance against heavy loads. Consequently, it finds extensive usage in the construction, manufacturing, and automotive sectors, where strength and durability play pivotal roles. On the other hand, brass round bars are renowned for their exceptional corrosion resistance and electrical conductivity. As an alloy of copper and zinc, brass acquires a unique amalgamation of properties. It frequently finds application in scenarios necessitating good electrical conductivity, such as electrical connectors, plumbing fittings, and musical instruments. Moreover, brass possesses an appealing golden appearance, making it a favored choice for decorative purposes. In terms of cost, steel round bars generally prove more economical than their brass counterparts. Steel enjoys widespread availability and substantial production, resulting in lower unit costs. Conversely, brass, as a copper alloy, being a relatively expensive metal, typically carries a higher price tag. Another crucial aspect to consider is machinability. Steel round bars typically prove more manageable and workable than brass round bars. Steel exhibits favorable cutting and drilling properties, thereby facilitating the fabrication of diverse shapes and sizes. Conversely, brass tends to boast a higher machinability rating, indicating its ease of cutting and shaping compared to other metals. In conclusion, steel round bars surpass brass round bars in terms of strength, durability, and cost-effectiveness. They serve as suitable components for applications necessitating robustness and resistance against heavy loads. Conversely, brass round bars excel in offering exceptional corrosion resistance, electrical conductivity, and an aesthetically pleasing appearance. They commonly find use in applications demanding high electrical conductivity and for decorative purposes. Ultimately, the choice between steel and brass round bars hinges upon the specific requirements of the given application.

Q: What are the advantages of using nickel-chromium-molybdenum alloy steel round bars?: There are several advantages of using nickel-chromium-molybdenum alloy steel round bars: 1. High strength and durability: Nickel-chromium-molybdenum alloy steel round bars have excellent mechanical properties, including high tensile strength and hardness. This makes them ideal for applications that require a strong and durable material. 2. Corrosion resistance: The addition of nickel and chromium in the alloy steel composition enhances its resistance to corrosion, making it suitable for use in environments where exposure to harsh chemicals or moisture is a concern. This corrosion resistance extends the lifespan of the round bars and reduces the need for frequent replacements. 3. Heat resistance: Nickel-chromium-molybdenum alloy steel round bars can withstand high temperatures without losing their structural integrity. This makes them suitable for applications that involve exposure to extreme heat, such as in the manufacturing of boilers, heat exchangers, and other heat-resistant equipment. 4. Versatility: The nickel-chromium-molybdenum alloy steel round bars can be easily machined and fabricated, allowing for various shapes and sizes to be produced. This versatility makes them suitable for a wide range of applications in industries such as aerospace, automotive, oil and gas, and construction. 5. Fatigue resistance: The alloy composition of nickel-chromium-molybdenum steel enhances its fatigue resistance, making it suitable for applications subjected to cyclic loading or repeated stress. This property ensures that the round bars can withstand prolonged use without experiencing fatigue failure. 6. Weldability: Nickel-chromium-molybdenum alloy steel round bars have good weldability, allowing for easy joining or fabrication processes. This makes them suitable for applications that require welding or other forms of joining, providing flexibility in design and construction. Overall, the advantages of using nickel-chromium-molybdenum alloy steel round bars make them a preferred choice in various industries where strength, durability, corrosion resistance, heat resistance, versatility, fatigue resistance, and weldability are crucial factors for success.

Q: Can steel round bars be used in the aerospace manufacturing industry?: Yes, steel round bars can be used in the aerospace manufacturing industry. Steel is a commonly used material in aerospace applications due to its strength, durability, and resistance to high temperatures. Steel round bars are often used in the construction of aircraft frames, landing gears, and engine components.

Q: What is the elongation of a steel round bar?: When a tensile force is applied to a steel round bar, its elongation occurs, which is the extent to which it stretches or deforms. This elongation indicates the bar's capacity to endure tension and is commonly stated as a percentage of its original length. The elongation is influenced by various properties of the steel, including its composition, grain structure, and heat treatment. Additionally, factors such as the applied force, temperature, and loading speed impact the elongation. Steel round bars typically demonstrate considerable elongation before reaching their breaking point, which renders them suitable for structural applications demanding both strength and ductility.

Q: What are the different finishes available for steel round bars?: Steel round bars are available in several finishes, each serving a specific purpose and offering distinct benefits. Some commonly used finishes include: 1. Hot Rolled: By heating the steel above its recrystallization temperature and rapidly cooling it, a rough and scaly surface texture is achieved. This finish provides excellent corrosion resistance and durability. 2. Cold Rolled: The steel is rolled at room temperature, resulting in a smooth and polished finish. Cold rolled steel round bars are known for their precise dimensions, tight tolerances, and improved surface finish. 3. Bright Drawn: This finish involves subjecting the steel round bars to a drawing process, where they are pulled through a die to achieve the desired shape and size. It leaves the surface smooth, bright, and free from imperfections. 4. Polished: Polishing is typically done after cold rolling or drawing the steel round bars. Abrasive materials or chemical treatments are used to remove surface imperfections and create a highly reflective finish. Polished steel round bars are commonly used for decorative purposes. 5. Ground: Grinding is a process where abrasive wheels are used to remove surface imperfections or irregularities from the steel round bars. This results in a smooth and even finish, making the bars suitable for applications requiring tight tolerances and uniformity. 6. Galvanized: Galvanizing involves dipping the steel round bars in a bath of molten zinc, creating a protective layer that prevents corrosion and increases their lifespan. This finish is ideal for outdoor applications or environments with high humidity or moisture. These various finishes offer different properties and appearances, allowing steel round bars to be used in industries such as construction, automotive, manufacturing, and engineering. It is important to consider the specific requirements and conditions of the intended use when selecting the appropriate finish for steel round bars.

Q: Can steel round bars be used in high-temperature applications?: Yes, steel round bars can be used in high-temperature applications as they have excellent thermal resistance and can withstand elevated temperatures without losing their structural integrity.

Q: Can steel round bars be used for making railway tracks?: Making railway tracks is possible using steel round bars. They are commonly chosen as the main material for railway tracks due to their strength, durability, and capacity to handle heavy loads. These bars offer a stable and solid base for train travel and can endure the continuous wear and tear caused by train wheels. The circular shape of the bars also aids in reducing friction and enabling smooth train movement. Moreover, steel is resistant to rust, which makes it appropriate for long-lasting outdoor applications like railway tracks. In conclusion, steel round bars are a favored option for creating railway tracks because of their strength, durability, and dependability.

Q: Can steel round bars be used for making staircases?: Yes, steel round bars can be used for making staircases. Steel round bars are commonly used in the construction industry for various applications, including staircase fabrication. They are strong, durable, and provide excellent structural support, making them an ideal choice for staircases. Steel round bars can be used to create the framework and structure of the staircase, providing stability and safety. Additionally, steel round bars can be easily shaped and welded to create different designs and styles for the staircase, allowing for customization and flexibility in the construction process. Overall, steel round bars are a reliable and popular choice for making staircases due to their strength, durability, and versatility.

Q: What is the difference between a seamless and a welded steel round bar?: The main difference between a seamless and a welded steel round bar lies in their manufacturing process and the resulting structural integrity. A seamless steel round bar is produced by piercing a solid billet of steel and then rolling it into a round shape. This process ensures that there are no seams or welds in the bar, resulting in a smooth and continuous surface throughout its length. The absence of a weld eliminates the potential weaknesses and vulnerabilities associated with welded joints. Seamless steel bars are typically more uniform in composition and have a higher strength-to-weight ratio due to the absence of welds. On the other hand, a welded steel round bar is created by joining multiple pieces of steel together using various welding techniques. The steel pieces are heated and fused together at the edges to form a continuous bar. While the welding process provides flexibility in terms of length and diameter options, the presence of a weld can introduce certain structural concerns. Welded joints may be prone to defects, such as porosity or inclusions, which can compromise the overall strength and integrity of the bar. However, advancements in welding technology and quality control have significantly improved the reliability of welded steel round bars. In terms of applications, seamless steel round bars are often preferred in critical industries where high strength, reliability, and resistance to corrosion are essential. These industries may include oil and gas, aerospace, and automotive sectors. Welded steel round bars, on the other hand, are commonly used in less demanding applications where cost-effectiveness and availability are primary factors, such as construction, manufacturing, and general engineering. In summary, the key differences between seamless and welded steel round bars lie in their manufacturing process and resulting structural characteristics. Seamless bars are produced without any welds, offering a smoother surface, higher strength-to-weight ratio, and greater resistance to defects. Welded bars, while more cost-effective and readily available, may have weld-related vulnerabilities that need to be considered depending on the application. Ultimately, the choice between the two depends on the specific requirements and priorities of the intended use.

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