Alloy Steel Round Bars 42CrMo4

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 120000 m.t./month

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GB	DIN	AISI	JIS
42CrMo	1.7225	4140	SCM440

C	Si	Mn	Cr	Mo	P	S
0.38-0.43	0.40max	0.60-0.90	0.90-1.20	0.15-0.30	≤0.035	≤0.035

Carbon Steel	Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction
Bearing Steel	Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section
Gear Steel	All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts

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.

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.

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

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 for making furniture?: Certainly! Furniture can indeed be made using steel round bars. These bars possess qualities of strength, durability, and a sleek, contemporary appearance. With these features in mind, a wide variety of furniture items can be crafted, including tables, chairs, stools, and shelving units. By welding, bending, and shaping steel round bars, bespoke and distinctive designs can be achieved. Furthermore, combining steel round bars with other materials, such as wood or glass, allows for a captivating blend of textures and styles. An added advantage of steel round bars is their resistance to corrosion, rendering them suitable for both indoor and outdoor furniture. In summary, steel round bars bestow versatility and robustness, making them an exceptional choice for furniture-making endeavors.

Q: What is the difference between a bright and a black steel round bar?: The main difference between a bright and a black steel round bar is the surface finish. A bright steel round bar has a smooth and shiny surface due to the additional processing steps it undergoes, such as pickling or cold drawing. On the other hand, a black steel round bar has a rough and dark surface due to the absence of these additional processing steps. Additionally, the black steel round bar may also have a coating of oil or rust inhibitor to protect it from corrosion.

Q: What are the advantages of using chromium-molybdenum alloy steel round bars?: There are several advantages of using chromium-molybdenum alloy steel round bars: 1. High Strength: Chromium-molybdenum alloy steel round bars have excellent strength properties, making them suitable for applications that require a high level of strength and durability. This makes them ideal for use in heavy machinery, construction equipment, and other demanding applications. 2. Corrosion Resistance: The addition of chromium in the alloy steel composition enhances its corrosion resistance properties. This makes chromium-molybdenum alloy steel round bars highly resistant to rust and other forms of corrosion, making them suitable for use in harsh environments and outdoor applications. 3. Heat Resistance: Chromium-molybdenum alloy steel round bars have excellent heat resistance properties, allowing them to withstand high temperatures without losing their structural integrity. This makes them suitable for use in applications that involve high temperature conditions, such as in boilers, pressure vessels, and heat exchangers. 4. Wear Resistance: The presence of molybdenum in the alloy steel composition provides excellent wear resistance properties. This means that chromium-molybdenum alloy steel round bars can withstand the effects of wear and abrasion, making them suitable for use in applications that involve high levels of friction and wear, such as in mining equipment, drilling tools, and automotive components. 5. Machinability: Chromium-molybdenum alloy steel round bars have good machinability, allowing them to be easily shaped and formed into various configurations. This makes them suitable for use in applications that require complex shapes and designs, such as in automotive parts, machine components, and tooling. Overall, the advantages of using chromium-molybdenum alloy steel round bars make them a popular choice for a wide range of applications in various industries. They offer high strength, corrosion resistance, heat resistance, wear resistance, and good machinability, making them a reliable and versatile material for many demanding applications.

Q: What are the different types of steel round bars used in the agricultural sector?: In the agricultural sector, there are several types of steel round bars that are commonly used due to their strength, durability, and versatility. These bars play a crucial role in various agricultural applications. 1. Mild Steel Round Bars: Mild steel is one of the most widely used types of steel in the agricultural sector. It offers excellent strength and is relatively low in cost. Mild steel round bars are commonly used in the construction of agricultural equipment, such as plows, cultivators, and harrows. 2. Carbon Steel Round Bars: Carbon steel round bars are known for their high strength and toughness. They can withstand heavy loads and are ideal for applications that require superior durability. Carbon steel round bars are commonly used in the manufacturing of tractor parts, tillage tools, and other heavy-duty agricultural machinery. 3. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements to steel, such as chromium, nickel, or molybdenum. These elements enhance the strength, hardness, and corrosion resistance of the steel. In the agricultural sector, alloy steel round bars are often used in the manufacturing of high-performance components, such as gears, axles, and shafts. 4. Stainless Steel Round Bars: Stainless steel round bars are highly resistant to corrosion and have excellent mechanical properties. They are commonly used in agricultural applications that require resistance to moisture, chemicals, and harsh environments. Stainless steel round bars are often utilized in the manufacturing of dairy equipment, storage tanks, and irrigation systems. 5. Tool Steel Round Bars: Tool steel round bars are specifically designed to withstand high temperatures, abrasion, and impact. They are used in agricultural applications that involve cutting, shaping, or drilling. Tool steel round bars are commonly used in the production of blades, cutting tools, and machinery parts for crop harvesting and processing. It is important to consider the specific requirements and conditions of each agricultural application when selecting the appropriate type of steel round bar. By choosing the right steel round bar, farmers and agricultural professionals can ensure the reliability and longevity of their equipment and machinery.

Q: What are the advantages of using carbon steel round bars?: Using carbon steel round bars in various applications offers several advantages. To begin with, carbon steel round bars are renowned for their exceptional strength and durability. They possess a high tensile strength, making them ideal for heavy-duty tasks that involve carrying substantial loads and enduring intense pressures. As a result, carbon steel round bars find extensive use in the construction, manufacturing, and engineering sectors. Another benefit of carbon steel round bars lies in their remarkable machinability. They can be effortlessly cut, drilled, and shaped into diverse forms, rendering them highly versatile for different projects. This flexibility allows for precise and accurate fabrication, ensuring that the desired specifications and dimensions are achieved. Furthermore, carbon steel round bars exhibit excellent weldability, enabling easy joining using various welding techniques. This feature makes them highly preferred for constructing structures and machinery that demand strong and secure connections. Moreover, carbon steel round bars offer a cost-effective solution compared to other materials with similar properties. They strike an optimal balance between performance and affordability, making them a favored choice across many applications. Additionally, their long lifespan and minimal maintenance requirements contribute to cost savings over time. Carbon steel round bars also possess a high resistance to corrosion and wear, thanks to the presence of carbon and other alloying elements. This enhanced resistance shields them from external factors like moisture, chemicals, and abrasion. Consequently, carbon steel round bars can endure harsh environments and prolonged exposure to various elements, making them well-suited for outdoor applications. Lastly, the widespread use and popularity of carbon steel round bars ensure their ready availability in the market. They can be found in various sizes, grades, and specifications, allowing users to select the most suitable option for their specific needs. This availability streamlines the sourcing process and reduces lead times for projects. In conclusion, the utilization of carbon steel round bars provides numerous advantages, including exceptional strength, excellent machinability, good weldability, affordability, corrosion resistance, and availability. These qualities establish carbon steel round bars as a reliable and versatile choice for a wide range of applications across different industries.

Q: Can steel round bars be used for making punches and dies?: Yes, steel round bars can be used for making punches and dies. Steel round bars are commonly used in tool and die making due to their strength, durability, and versatility. They can be machined and formed into various shapes and sizes to create punches and dies that can withstand the high forces and pressures involved in metalworking and material forming processes.

Q: What are the advantages of using non-alloy steel round bars?: Non-alloy steel round bars offer numerous benefits. Firstly, they possess exceptional strength and durability, surpassing their alloy steel counterparts. As a result, they are well-suited for applications that require robustness. Industries such as construction, automotive, and manufacturing find them particularly advantageous. In addition, non-alloy steel round bars exhibit outstanding weldability and machinability. They can be effortlessly welded and shaped into various forms, allowing for flexibility in design and fabrication. This, in turn, streamlines the manufacturing process and saves valuable time and effort. Furthermore, non-alloy steel round bars possess commendable corrosion resistance. They are less susceptible to rust and deterioration, making them perfect for environments where exposure to moisture or corrosive substances is a concern. The longevity and reliability of these bars are thus ensured, resulting in reduced maintenance and replacement costs over time. Moreover, non-alloy steel round bars prove to be cost-effective when compared to their alloy steel counterparts. They are more affordable and readily available, making them a prudent choice for a wide range of applications. This affordability renders non-alloy steel round bars particularly popular for small-scale projects and businesses operating on a limited budget. In conclusion, the advantages of utilizing non-alloy steel round bars encompass high strength, exceptional weldability and machinability, commendable corrosion resistance, and cost-effectiveness. These characteristics make them a versatile and dependable option for various industries and applications.

Q: What is the difference between a centerless ground and a hot rolled steel round bar?: Two distinct types of steel bars are the centerless ground steel round bar and the hot rolled steel round bar. To begin with, the manufacturing process for each type varies. The centerless ground steel round bar is produced by passing it through a centerless grinder, which eliminates any surface imperfections and ensures a precise and smooth finish. This process guarantees tight tolerances and a consistent diameter throughout the bar's length. On the other hand, the hot rolled steel round bar is created by subjecting the steel billet to extremely high temperatures and then rolling it through a series of mills to achieve the desired shape and size. As a result, the surface finish of hot rolled steel bars is rougher compared to centerless ground steel bars. In terms of physical properties, centerless ground steel bars generally exhibit a higher level of dimensional accuracy and straightness due to the precision grinding process. This makes them suitable for applications requiring tight tolerances and precise measurements, such as the manufacturing of machinery parts or precision tools. Conversely, hot rolled steel round bars are renowned for their strength and durability. The heating and rolling process imparts desirable mechanical properties to the steel, such as increased hardness and toughness. These bars are commonly used in general construction, structural applications, and fabrication projects where strength and reliability are paramount. In conclusion, the key distinction between a centerless ground steel round bar and a hot rolled steel round bar lies in their manufacturing processes, surface finish, and intended applications. While centerless ground bars offer superior dimensional accuracy and smoothness, hot rolled bars are valued for their strength and resilience. The choice between the two depends on the specific requirements of the application at hand.

Q: How do you prevent warping of steel round bars during machining?: To prevent warping of steel round bars during machining, several precautions can be taken. First, it is important to use a proper cutting tool with sharp edges and the right cutting speed to minimize heat generation. Additionally, using lubricants and coolants during the machining process can help dissipate heat and reduce friction. It is also crucial to ensure that the workpiece is properly secured to minimize vibration and movement during machining. Finally, allowing sufficient time for the steel round bars to cool down gradually after machining can help prevent warping.

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