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: What are the different grades of tool steel round bars?: Tool steel round bars are available in various grades, each offering unique properties and characteristics to suit specific applications. Some of the different grades of tool steel round bars include: 1. W1: This is a water-hardening tool steel with relatively low carbon content. It is known for its excellent toughness and good wear resistance. W1 tool steel round bars are commonly used for cutting tools and woodworking tools. 2. O1: O1 tool steel round bars are oil-hardening tool steel with high carbon content. They have good wear resistance, high toughness, and excellent dimensional stability. O1 tool steel is often used for punches, dies, and cutting tools. 3. A2: A2 tool steel round bars are air-hardening tool steel with medium carbon and chromium content. They offer good wear resistance, excellent toughness, and high dimensional stability. A2 tool steel is commonly used for blanking and forming dies, as well as shear blades. 4. D2: D2 tool steel round bars are high-carbon, high-chromium tool steel with excellent wear resistance and good toughness. They offer high resistance to abrasive wear and are often used for making cutting tools, punches, and forming dies. 5. M2: M2 tool steel round bars are high-speed steel with a significant amount of tungsten, molybdenum, and vanadium. They have exceptional wear resistance, high red hardness, and good toughness. M2 tool steel is typically used for high-speed cutting tools, drill bits, and machining tools. 6. S7: S7 tool steel round bars are air-hardening shock-resistant tool steel. They have high impact toughness, good wear resistance, and excellent heat resistance. S7 tool steel is commonly used for applications that require high shock resistance, such as chisels and hammers. These are just a few examples of the different grades of tool steel round bars available in the market. The choice of grade depends on factors such as the specific application, desired hardness, wear resistance, toughness, and heat resistance required. It is important to consult with a knowledgeable supplier or metallurgist to determine the most suitable grade for a particular application.

Q: What are the advantages of using carbon steel round bars?: There are several advantages to using carbon steel round bars in various applications. Firstly, carbon steel round bars are known for their high strength and durability. They have a high tensile strength, making them suitable for heavy-duty applications that require withstanding significant loads and pressures. This makes carbon steel round bars ideal for use in construction, manufacturing, and engineering industries. Another advantage of carbon steel round bars is their excellent machinability. They can be easily cut, drilled, and shaped into various forms, making them versatile for different projects. This also allows for precise and accurate fabrication, ensuring that the desired specifications and dimensions are achieved. Carbon steel round bars also offer good weldability, which means they can be easily joined together using various welding techniques. This makes them a preferred choice in the construction of structures and machinery that require strong and secure connections. Additionally, carbon steel round bars are relatively cost-effective compared to other materials with similar properties. They offer an excellent balance between performance and affordability, making them a popular choice for many applications. Moreover, they have a long lifespan and require minimal maintenance, resulting in cost savings over time. Carbon steel round bars are also highly resistant to corrosion and wear. This is due to the presence of carbon and other alloying elements, which enhance their resistance to external factors such as moisture, chemicals, and abrasion. As a result, carbon steel round bars can withstand harsh environments and prolonged exposure to various elements, making them suitable for outdoor applications. Lastly, carbon steel round bars are readily available in the market due to their widespread use and popularity. They are available in various sizes, grades, and specifications, allowing users to select the most suitable option for their specific needs. This availability ensures ease of sourcing and reduces lead times for projects. In conclusion, the advantages of using carbon steel round bars include their high strength, excellent machinability, good weldability, affordability, corrosion resistance, and availability. These qualities make carbon steel round bars a reliable and versatile choice for a wide range of applications in different industries.

Q: What is the difference between a turned and a polished steel round bar?: A turned steel round bar is machined to achieve a specific diameter and surface finish, while a polished steel round bar undergoes additional processing to enhance its surface smoothness and appearance.

Q: How are steel round bars used in the construction of dams and reservoirs?: Due to their strength, durability, and versatility, steel round bars are essential components in the construction of dams and reservoirs. These bars, typically made of reinforced steel, play a vital role in reinforcing the concrete structures that make up dams and reservoirs. In dam construction, steel round bars are primarily used as reinforcement in concrete walls and foundations. Strategically placed within the concrete, these bars provide additional tensile strength, preventing cracking and ensuring the structural integrity of the dam. By withstanding the enormous pressure exerted by the water, the reinforcement helps prevent leaks or potential failures. Furthermore, steel round bars are utilized to strengthen the spillway gates and control structures of dams and reservoirs. These gates regulate the flow of water and prevent overflow during heavy rains or floods. By reinforcing these critical areas with steel round bars, engineers guarantee that the gates can endure the forces exerted by the flowing water, maintaining their functionality and preventing potential damage. In addition, steel round bars are used in the construction of penstocks, which are large pipes or conduits that transport water from reservoirs to turbines in hydroelectric power plants. These bars reinforce the penstocks, ensuring they can withstand the high pressure of the water as it flows through and powers the turbines. In conclusion, steel round bars are extensively applied in dam and reservoir construction to enhance the strength and durability of various structural components. Their ability to reinforce concrete walls, foundations, spillway gates, control structures, and penstocks makes them indispensable in ensuring the longevity and stability of these crucial water infrastructures.

Q: How are steel round bars used in the construction of offshore structures?: Steel round bars are commonly used in the construction of offshore structures due to their high strength and durability. These bars are often used as reinforcement in concrete structures, providing added strength and stability to the overall framework. Additionally, they can be used as support beams and columns, ensuring the structural integrity of offshore platforms, oil rigs, and other marine infrastructure. The corrosion-resistant properties of steel further make it an ideal choice for withstanding harsh marine environments.

Q: What are the different types of steel round bar surface treatments used in the automotive industry?: In the automotive industry, the most common types of steel round bar surface treatments used are galvanization, electroplating, and powder coating. Galvanization involves coating the steel with a layer of zinc to protect it from corrosion. Electroplating is a process where a thin layer of another metal, such as chrome or nickel, is applied to the steel surface for enhanced aesthetics and protection. Powder coating, on the other hand, involves applying a dry powder to the steel surface and then curing it under high heat to create a durable and attractive finish. These surface treatments help improve the durability, appearance, and overall performance of steel round bars used in automotive applications.

Q: What is the difference between a solid and a hollow steel round bar?: A cylindrical bar made entirely of solid steel material is called a solid steel round bar. It is completely filled and does not have any empty spaces inside. On the other hand, a hollow steel round bar is also cylindrical but has a hollow center, meaning there is empty space or a void within the bar. The primary distinction between a solid and a hollow steel round bar is their structural composition and the roles they fulfill. A solid steel round bar is typically used in applications where strength and durability are of utmost importance. It is commonly employed in construction, manufacturing, and engineering projects that require load-bearing capacity. Conversely, a hollow steel round bar is designed to be lighter in weight while still maintaining structural integrity. The hollow center allows for weight reduction while still providing sufficient strength for various applications. Hollow steel round bars are often utilized in industries such as aerospace, automotive, and marine, where reducing weight is crucial for enhanced fuel efficiency and overall performance. Furthermore, the empty space inside a hollow steel round bar also presents an opportunity for customization. It can be utilized to house other components, such as wires or piping, enabling a more streamlined and efficient design. This versatility makes hollow steel round bars suitable for various applications that necessitate both strength and weight reduction. In conclusion, the main difference between a solid and a hollow steel round bar lies in their structural composition and the roles they fulfill. Solid steel round bars are employed in applications that demand maximum strength and durability, while hollow steel round bars offer weight reduction and customization options, making them suitable for applications that prioritize lightweight design without compromising structural integrity.

Q: Can steel round bars be used for making agricultural equipment?: Agricultural equipment can indeed be made using steel round bars. These bars are well-known for their exceptional strength and durability, which makes them ideal for heavy-duty applications in the agricultural industry. When it comes to manufacturing various types of agricultural equipment like plows, tillers, cultivators, harrows, and seeders, steel round bars are the go-to choice. Their strength enables these tools to endure the tough conditions found in the field, even when faced with rocks and hard soil. Moreover, steel round bars can be easily shaped and welded, providing flexibility in the design and customization of agricultural equipment to meet specific requirements. All in all, steel round bars are a dependable and cost-efficient material option for creating agricultural equipment due to their strength, durability, and versatility.

Q: Are steel round bars suitable for structural applications?: Indeed, steel round bars are well-suited for structural applications. Renowned for their robustness and resilience, steel round bars prove to be excellent for diverse structural purposes. They exhibit exceptional load-bearing capabilities, thus frequently employed in construction undertakings like bridges, buildings, and infrastructure projects. Moreover, steel round bars possess commendable resistance against corrosion, fire, and severe weather conditions, thereby ensuring the longevity and structural integrity of the application. Their adaptability allows for effortless shaping, welding, and customization to satisfy the project's specific requisites. All in all, steel round bars present themselves as a dependable and cost-efficient option for structural applications.

Q: What are the advantages of using steel round bars?: Using steel round bars in various applications has several benefits. First and foremost, steel round bars are renowned for their exceptional strength and durability, making them perfect for construction projects as they can withstand heavy loads and provide structural integrity. Moreover, steel round bars exhibit excellent resistance to corrosion, making them suitable for outdoor and marine applications. They can endure harsh weather conditions and remain unaffected by moisture and chemicals, resulting in a longer lifespan and reduced maintenance costs. In terms of versatility, steel round bars offer a wide range of customization options, allowing them to be tailored to specific requirements. This makes them suitable for construction, manufacturing, and engineering projects where precise dimensions and specifications are crucial. Additionally, steel round bars have excellent machinability, making them easy to cut, drill, and shape. This adaptability saves time and effort during the fabrication process, making them highly convenient to work with. Moreover, steel round bars possess a high tensile strength, enabling them to resist deformation under pressure. This makes them an ideal choice for applications that require exceptional strength, such as in the manufacturing of machinery, tools, and automotive components. Lastly, steel round bars are cost-effective compared to other materials. Their durability and long lifespan result in reduced maintenance and replacement costs over time. Furthermore, their availability and widespread use make them a cost-efficient option for various industries. Overall, the advantages of using steel round bars include their exceptional strength, resistance to corrosion, versatility, machinability, high tensile strength, and cost-effectiveness. These qualities contribute to their widespread usage in industries worldwide.

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