Carbon Alloy Steel Round Bars AISI 4140 System 1

Carbon Alloy Steel Round Bars AISI 4140 System 2

Carbon Alloy Steel Round Bars AISI 4140 System 3

Carbon Alloy Steel Round Bars AISI 4140 System 4

Carbon Alloy Steel Round Bars AISI 4140

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Chemical Composition	Mechanical Properties (In Quenched & Tempered State)
C	0.38-0.43 %	Tensile strength(MPA)	≥1080(110)
Si	0.15-0.35%	Yield strength (MPA)	≥930(95)
Mn	0.75-1.00 %	Elongation (δ5/%)	≥12
Cr	0.80-1.10 %	Reduction in Area (ψ/%)	≥45
Ni	≤0.030 %	Impact (J)	≥ 63
P	≤0.030 %	Impact toughness value αkv (J/cm2)	≥78(8)
S	≤0.040 %	Hardness	≤217HB
Cu	≤0.030 %
Mo	0.15-0.25 %

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: Can steel round bars be used for making renewable energy systems?: Yes, steel round bars can be used for making renewable energy systems. Steel is a versatile and durable material that can be used in various components of renewable energy systems such as wind turbines, solar panel frames, and hydroelectric power plants. Its strength and resistance to corrosion make it suitable for withstanding the harsh conditions often encountered in renewable energy applications.

Q: What are the advantages of using nickel-chromium-cobalt alloy steel round bars?: There are several advantages of using nickel-chromium-cobalt alloy steel round bars. Firstly, this type of alloy steel has excellent corrosion resistance properties. It can withstand extreme environments, such as high temperatures, humidity, and exposure to chemicals, without succumbing to rust or corrosion. This makes it ideal for applications in industries like aerospace, marine, and chemical processing, where durability and longevity are crucial. Secondly, nickel-chromium-cobalt alloy steel round bars possess exceptional strength and toughness. They have a high tensile strength and can withstand heavy loads and impacts without deforming or breaking. This makes them suitable for applications that require structural integrity and resistance to deformation, such as in the construction industry or in manufacturing heavy machinery. Moreover, this alloy steel exhibits excellent heat resistance. It can withstand elevated temperatures without losing its mechanical properties, making it ideal for applications that involve high-temperature environments, such as in power generation, oil and gas exploration, or furnace components. Additionally, nickel-chromium-cobalt alloy steel round bars offer good wear resistance. They can withstand abrasive conditions, such as friction and wear, without experiencing significant deterioration. This makes them suitable for applications like tooling, machining, and wear components, where durability and resistance to wear are critical. Lastly, nickel-chromium-cobalt alloy steel round bars are highly versatile. They can be easily machined, welded, and formed into various shapes, making them adaptable to a wide range of applications. Their versatility allows for customization and flexibility in design and manufacturing processes. In conclusion, the advantages of using nickel-chromium-cobalt alloy steel round bars include excellent corrosion resistance, high strength and toughness, heat resistance, good wear resistance, and versatility. These qualities make them a preferred choice for various industries, where reliability, durability, and performance are essential.

Q: How are steel round bars classified based on their shape?: Steel round bars are classified based on their shape as either hot-rolled or cold-drawn round bars.

Q: Can steel round bars be threaded or machined?: Yes, steel round bars can be threaded or machined.

Q: Can steel round bars be used in the manufacturing of agricultural equipment?: Yes, steel round bars can be used in the manufacturing of agricultural equipment. Steel round bars are commonly used in the construction of various types of agricultural machinery and equipment due to their strength, durability, and versatility. They can be used to make components such as axles, shafts, and pins, which are essential for the proper functioning of agricultural equipment. Steel round bars offer high tensile strength, which makes them capable of withstanding heavy loads and harsh working conditions typically encountered in agricultural operations. Additionally, steel round bars can be easily machined, welded, and formed into different shapes and sizes, providing flexibility in manufacturing agricultural equipment to meet specific requirements. Overall, the use of steel round bars in the manufacturing of agricultural equipment ensures reliable and long-lasting performance, making them a preferred choice for the industry.

Q: What are the advantages of using chromium-molybdenum alloy steel round bars?: Chromium-molybdenum alloy steel round bars offer numerous benefits: 1. Exceptional Strength: These bars possess outstanding strength characteristics, rendering them suitable for applications requiring durability and high levels of strength. Consequently, they excel in heavy machinery, construction equipment, and other demanding applications. 2. Resistance to Corrosion: The inclusion of chromium in the alloy steel composition enhances its resistance to corrosion. This quality makes chromium-molybdenum alloy steel round bars highly impervious to rust and other forms of corrosion. Consequently, they are ideal for use in harsh environments and outdoor applications. 3. Impressive Heat Resistance: Chromium-molybdenum alloy steel round bars exhibit excellent resistance to high temperatures without compromising their structural integrity. This trait makes them suitable for applications subjected to extreme heat, such as boilers, pressure vessels, and heat exchangers. 4. Superior Wear Resistance: The presence of molybdenum in the alloy steel composition provides exceptional wear resistance properties. As a result, chromium-molybdenum alloy steel round bars can withstand the effects of wear and abrasion, making them ideal for applications involving high levels of friction and wear, such as mining equipment, drilling tools, and automotive components. 5. Excellent Machinability: Chromium-molybdenum alloy steel round bars possess excellent machinability, allowing them to be easily shaped and formed into various configurations. This characteristic makes them suitable for applications that require complex shapes and designs, including automotive parts, machine components, and tooling. Overall, the benefits offered by chromium-molybdenum alloy steel round bars have made them a popular choice across various industries. Their high strength, corrosion resistance, heat resistance, wear resistance, and good machinability make them a reliable and versatile material for numerous demanding applications.

Q: What is the difference between a ground and a polished steel round bar?: A ground steel round bar and a polished steel round bar differ in their surface finish and appearance. A ground steel round bar is subjected to a grinding process, where a grinding wheel or belt is used to remove any surface imperfections, such as roughness or irregularities. This process results in a smooth and even surface finish. Ground steel round bars are often used in applications where precision and tight tolerances are required, such as in machinery or automotive components. On the other hand, a polished steel round bar undergoes a polishing process, where abrasive materials such as polishing compounds or buffing wheels are used to create a high shine and reflective surface. This process enhances the aesthetics of the steel bar, making it more visually appealing. Polished steel round bars are commonly used in decorative applications, architectural projects, or in industries where a visually pleasing appearance is desired, such as jewelry or interior design. In summary, while both ground and polished steel round bars serve different purposes, the main difference lies in their surface finish. Ground steel round bars prioritize precision and smoothness, while polished steel round bars prioritize a shiny and reflective appearance.

Q: Can steel round bars be used in the production of sporting goods?: Yes, steel round bars can be used in the production of sporting goods. Steel is a versatile material known for its strength and durability, making it suitable for various applications in the sporting goods industry. Steel round bars can be used to create components such as shafts, handles, frames, and supports in sporting equipment like golf clubs, hockey sticks, weightlifting bars, and exercise equipment. The high tensile strength of steel ensures that these components can withstand the forces and pressures exerted during sports activities, providing stability and longevity to the products. Moreover, steel round bars can be easily machined, welded, and molded into different shapes and sizes according to the specific requirements of each sporting good. Steel's corrosion resistance properties also make it ideal for outdoor sporting equipment that is exposed to various weather conditions. Overall, steel round bars are a popular choice in the production of sporting goods due to their strength, durability, versatility, and ability to withstand the demands of different sports.

Q: Can steel round bars be used for making valves or fittings?: Yes, steel round bars can be used for making valves or fittings. Steel round bars offer excellent strength, durability, and corrosion resistance, making them suitable for various applications in the manufacturing of valves and fittings. They can be easily machined, welded, and fabricated to meet specific design requirements, ensuring reliable and long-lasting performance in valve and fitting systems.

Q: Can steel round bars be used for making wheel hubs?: Yes, steel round bars can be used for making wheel hubs. Steel round bars are a common choice for manufacturing wheel hubs due to their strength and durability. The round shape of the bars allows for easy machining and shaping into the required design for the wheel hub. Steel is known for its high tensile strength and resistance to wear and tear, making it an ideal material for wheel hubs that need to withstand the heavy loads and constant rotation of the wheels. Additionally, steel is readily available and relatively cost-effective compared to other materials, making it a popular choice in the automotive industry for wheel hub production.

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