S20C-B/S45C-B Steel Round Bar

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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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Specifications

1. 2080
1. cold work mould/die steel
2. High carbon high chromium type ledeburite
3. High hardness wear resistance

Product description

1. Cr12 steel is a widely used cold work die steel, a type of high carbon high chromium ledeburite . The steel has good hardenability and good abrasion resistance

2. Mainly used to with stand the impact load is smaller, and require high abrasion resistance Die and punch, cold-cut scissors, drill sets, gauges, drawing die, pressure die thread rolling board, drawing die thread rolling die.

Chemical composition(for reference only)

1.2080 Cold work die steel round bar

Delivery of hardness and quenching hardness

Steel name	Delivery status		Quenched specimens
Steel name	Hardness HBW	Impressiondiameter (mm)	Quenching temperature/°C	Cooling medium	hardness ≥HRC
Cr12	269~217	3.7~4.1	950~1000	oil	60

Physical properties

Cr12 critical temperature

Critical point	Ac1	Acm	Ar1	Arcm	Ms
temperature(approximation)/°C	810	835	755	770	180

Cr12 Hot Working Technology

Item	Heating temperature/°C	start forging temperature/°C	final forging temperature/°C	type of cooling
Steel ingot	1140~1160	1100~1120	900~920	Slow cooling
Steel billet	1120~1140	1080~1100	880~920	Slow cooling

Cr12 heat treatment

between the quenching temperature and the hardness of the relationship

quenching temperature/°C	875	900	925	950	975	1000	1050	1100
Hardness HRC	54.5	57	60	62.5	65	66	64	59.5

Delivery status: steel delivered in the annealed condition

We are professional manufacture of tool steel. We can provide various kinds of tool steel and mould steel. If you have any question regarding our products ,please feel free to let us know. We assure you will receive our best attention to your enquiry.

Products

S20C-B/S45C-B Steel Round Bar

Q: How do steel round bars differ from other types of steel bars?: Steel round bars possess different characteristics compared to other types of steel bars, primarily in their shape and versatility. Unlike square or flat bars, steel round bars have a cylindrical shape and a circular cross-section, which grants them greater adaptability and flexibility. One of the main benefits of steel round bars lies in their capability to endure high levels of stress and pressure. Their circular shape ensures a uniform distribution of weight and pressure, making them ideal for applications that demand durability and strength. Consequently, these bars find wide usage in construction, manufacturing, and engineering projects that prioritize structural integrity. Another noteworthy distinction is the ease of machining and manipulation that steel round bars provide. Their cylindrical shape facilitates effortless drilling, cutting, and shaping, rendering them highly versatile and suitable for a vast range of applications. They can be conveniently welded, bent, or formed into diverse shapes, granting them an edge over other steel bar variations in terms of customization. In terms of appearance, steel round bars possess a distinctive visual allure. The sleek and cylindrical surface of these bars grants them a polished and refined appearance, making them aesthetically pleasing in architectural and decorative applications. In conclusion, steel round bars stand apart from other steel bar types due to their shape, versatility, and strength. Their ability to endure high levels of stress, ease of machining, and appealing aesthetics make them a favored choice in numerous industries.

Q: Can steel round bars be used in the manufacturing of firearms?: Yes, steel round bars can be used in the manufacturing of firearms. Steel is a commonly used material in the construction of firearms due to its high strength and durability. Steel round bars can be machined and shaped into various components of a firearm, such as barrels, bolts, receivers, and triggers. The hardness and quality of the steel used in firearms manufacturing is crucial to ensure the reliability and safety of the firearm. Therefore, steel round bars that meet the necessary specifications and standards are commonly used in the production of firearms.

Q: What is the cost of steel round bars?: The cost of steel round bars can vary depending on several factors such as the grade of steel, size of the bar, and the quantity being purchased. Generally, the price is determined by market conditions and can fluctuate over time. It is recommended to contact local steel suppliers or check online platforms that offer steel products to get the most accurate and up-to-date pricing information. Additionally, factors such as transportation and handling costs may also influence the final cost.

Q: Can steel round bars be used for making fasteners?: Yes, steel round bars can be used for making fasteners. They are commonly used in the manufacturing of bolts, screws, and other types of fasteners due to their strength, durability, and ease of machining. Steel round bars provide the necessary mechanical properties and can be threaded or shaped to meet specific fastening requirements.

Q: What is the difference between a polished and a precision ground steel round bar?: A polished steel round bar is a bar that has been polished to achieve a smooth and shiny surface. This involves using abrasive materials to eliminate any flaws or roughness. As a result, the bar is visually appealing and has a high level of aesthetic appeal. On the other hand, a precision ground steel round bar is a bar that has been ground precisely to achieve accurate dimensions and a smooth surface. This grinding process involves removing material from the bar's surface using grinding wheels or other cutting tools. The aim of precision grinding is to ensure that the bar meets specific size and shape requirements, making it suitable for applications that require precise dimensions and tight tolerances. In conclusion, the main difference between a polished and a precision ground steel round bar lies in the purpose of the respective finishing processes. Polishing is primarily done for aesthetic reasons, enhancing the bar's appearance, while precision grinding focuses on achieving precise dimensions and tight tolerances to meet specific technical requirements.

Q: What are the advantages of using maraging steel round bars?: Using maraging steel round bars in various applications offers several benefits. Firstly, these bars possess an impressive strength-to-weight ratio, making them ideal for situations where strength is crucial. They can withstand high stress and load-bearing conditions without deforming or failing, ensuring structural integrity. Secondly, maraging steel round bars exhibit exceptional toughness, enabling them to absorb significant amounts of energy before fracturing. This toughness makes them highly resistant to cracking or breaking, even under extreme conditions, enhancing their durability and reliability. Additionally, maraging steel round bars are known for their outstanding corrosion resistance. Unlike other types of steel, they are less prone to rust and oxidation, making them suitable for use in harsh environments or where exposure to moisture or chemicals is a concern. This corrosion resistance helps extend the lifespan of the bars and reduces maintenance costs. Furthermore, maraging steel round bars are relatively easy to machine, despite their high strength and hardness. They can be easily shaped, drilled, and cut into different forms and sizes, allowing for versatile applications across various industries. This ease of machining saves time and effort during the manufacturing process. Moreover, maraging steel round bars have excellent heat treatability, meaning they can be hardened and tempered to further enhance their mechanical properties. This flexibility in heat treatment allows for customization to meet specific project requirements, such as achieving desired hardness levels or improving characteristics like wear resistance or toughness. Lastly, maraging steel round bars are widely used in the aerospace and defense industries due to their exceptional strength, toughness, and corrosion resistance. They are commonly utilized in the manufacturing of critical components such as landing gear, missile casings, and aircraft structures, where reliability and performance are paramount. In conclusion, the advantages of using maraging steel round bars include high strength, superior toughness, corrosion resistance, machinability, heat treatability, and suitability for aerospace and defense applications. These properties make them the preferred choice for demanding industries, ensuring optimal performance and longevity in critical applications.

Q: Can steel round bars be used in the manufacturing of power transmission components?: Yes, steel round bars can be used in the manufacturing of power transmission components. Steel round bars are commonly used in the production of various mechanical and structural components due to their high strength, durability, and versatility. In power transmission systems, components such as shafts, gears, couplings, and spindles are often manufactured using steel round bars. The hardness and toughness of steel make it suitable for withstanding high levels of stress and torque, which are common in power transmission applications. Additionally, steel round bars can be machined and forged into different shapes and sizes, allowing for customization and precise engineering of power transmission components. Overall, steel round bars offer the necessary mechanical properties required for efficient and reliable power transmission in various industries.

Q: What are the limitations of steel round bars?: When selecting the appropriate material for a specific application, it is important to consider the limitations associated with steel round bars. Firstly, weight is a significant factor to consider. Steel round bars can be quite heavy, especially in larger diameters. This can pose challenges during transportation and installation, especially in situations where weight restrictions are a concern. Secondly, corrosion is another limitation of steel round bars. Although steel is known for its strength and durability, it is susceptible to rust and deterioration when exposed to moisture or certain chemicals. To mitigate this, protective coatings can be used or stainless steel round bars can be chosen as they are more resistant to corrosion. Thirdly, machinability is a challenge with steel round bars due to their high hardness and strength. This can result in increased tool wear, reduced cutting speeds, and longer machining times, leading to higher production costs. Cost is also an important consideration. Steel round bars, especially those made from high-quality alloys, can be relatively expensive compared to other materials. This cost factor may limit their use in applications with budget constraints. In terms of design flexibility, steel round bars come in standard sizes and shapes, which may restrict design options in some cases. Additional processing steps such as cutting or forging may be necessary to achieve a specific shape or size, adding to the overall production cost. Lastly, fatigue strength is a limitation of steel round bars. Although they have excellent strength properties, they can be prone to fatigue failure under repeated or cyclic loading. This is particularly relevant in applications where the material is constantly subjected to stress or vibration. Despite these limitations, steel round bars are still widely used in various industries due to their exceptional strength, reliability, and versatility. However, it is crucial to carefully consider these factors to ensure that the chosen material meets the specific requirements of the intended application.

Q: Can steel round bars be used in the oilfield equipment industry?: Yes, steel round bars can be used in the oilfield equipment industry. Steel round bars are commonly used in the oilfield industry due to their high strength, durability, and resistance to corrosion. They are used to manufacture various components and equipment such as drill collars, drill bits, valves, and pump shafts. The use of steel round bars ensures that the equipment can withstand the harsh conditions and extreme pressures encountered in oilfield operations. Additionally, steel round bars can be easily welded and machined to meet specific requirements, making them a versatile choice for the oilfield industry.

Q: What are the advantages of using nickel-lead alloy steel round bars?: There are several advantages of using nickel-lead alloy steel round bars. Firstly, these bars have excellent corrosion resistance properties, making them suitable for applications in harsh environments or corrosive substances. Secondly, the addition of nickel and lead enhances the machinability of the bars, allowing for easier shaping and forming processes. Additionally, nickel-lead alloy steel round bars exhibit good strength and durability, making them suitable for high-stress applications. Lastly, these bars offer good thermal and electrical conductivity, making them ideal for applications that require heat transfer or electrical conduction.

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