Hot Rolled Alloy Carbon Structural Steel Bars

Hot Rolled Alloy Carbon Structural Steel Bars System 1

Hot Rolled Alloy Carbon Structural Steel Bars System 2

Hot Rolled Alloy Carbon Structural Steel Bars System 3

Hot Rolled Alloy Carbon Structural Steel Bars System 4

Hot Rolled Alloy Carbon Structural Steel Bars

Ref Price:

Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Name	Alloy Steel 1.2379
Standard	ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc.
Spring steel	65Mn, 1566, 60Si2Mn, 9260, etc.
Bearing steel	GCr15, SAE52100, GCr15SiMn, 100CrMnSi6-4, SJU2, etc.
Cold heading steel	ML25, ML35, etc.
Alloy structural steel	40CrNiMo, SAE4330, 42CrMo, 15Cr2Ni2, 40CrNi2Mo, 35CrMoV, 12Cr1MoV, ASTM4130, SCM420, 40CrV, etc.
Military steel	20Cr2Ni4A, 18Cr2Ni4WA, 23CrNiMo7-4-7, etc.
Heat resistant steel	5CrNiMoV, 4Cr10Si2Mo, etc.
Mold and tool steel	SKD62, Cr12, 31CrMoV9, H11, 4Cr5MoSiV1, SKD61, DIN1.2344, H13, 35CrMoV, Cr12Mo1V1, SKD11, X153CrMoV12, D2, O1, DIN1.2510, P20, DIN1.2311, 3Cr2Mo, 9CrWMn, 4Cr13, AISI420, DIN1.2083, Cr12MoV, DIN1.2601, P20+Ni, Cr8Mo2SiV, DC53, DIN1.2738, etc.
Gear steel	ASTM8620, SAE4340, SNCM430, 40CrNiMo, etc.
Size	Round bar: 15-1200mm Square bar: 80-800mm
Length	2-12m, as customers' requirement.
Melting process	EAF+LF+VD
Ultrasonic testing	SEP1921-84 C/C, D/D, E/E
Surface treatment	Black, grinded, peeled, polished are available
Delivery condition	Annealing, tempering, quenching + tempering
Technique	hot rolled, cold drawn, forged are available
Package	Standard seaworthy packing, as customers’ requirement
Delivery Time	30 days after receipt of the deposit, negotiable.

Grade	Size (mm)
Round rolled steel (Dia.)	Flat rolled steel	Round forged steel (Dia.)	Square forged steel	Bright bar (Dia.)
High-quality carbon structural steel	16-320	5-38 44-150	120-900	100-750	12-150
Alloy structural steel	16-320	5-38 44-150	120-900	100-750	12-150
Carbon tool steel	16-320	5-38 44-150	120-350	100-310	12-150
Alloy tool steel	30-90		100-900	100-750	12-150
High speed tool steel			80-120	80-110	12-150
Bearing steel	16-320	5-38 44-150	120-300	100-600	12-150
Spring steel	14-180	5-38 44-150	120-300	100-260	12-150
Stainless steel	16-250		120-750	120-600	12-150
High temperature alloy steel			55-200	80-200	12-150
Free-cutting steel	14-250		120-400		12-150
Gear steel	16-320	5-38 44-150	120-900		15-150

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

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 advantages of using manganese-alloy steel round bars?: Using manganese-alloy steel round bars in various applications has several advantages. Firstly, these round bars offer exceptional strength and toughness. The inclusion of manganese in the alloy enhances the steel's hardness and durability, making it suitable for high-stress situations. As a result, industries such as construction, mining, and manufacturing find it to be an ideal choice. Secondly, manganese-alloy steel round bars possess excellent wear resistance properties. The presence of manganese significantly improves the steel's ability to withstand wear, abrasion, and impact. Consequently, components subjected to heavy usage and constant friction, like gears, shafts, and axles, prefer this type of steel. Furthermore, manganese-alloy steel round bars exhibit good machinability. They can be easily shaped, cut, and formed into different sizes and shapes, making them versatile for a range of applications. This characteristic streamlines manufacturing processes, reducing both production time and costs. In addition, manganese-alloy steel round bars provide excellent corrosion resistance. The presence of manganese creates a protective layer that prevents rust and corrosion, even in harsh environments. This makes them well-suited for applications where exposure to moisture, chemicals, or extreme temperatures is a concern. Lastly, manganese-alloy steel round bars offer cost-effectiveness. In comparison to other high-performance alloys, manganese-alloy steel is relatively more affordable while still providing many of the same benefits. Consequently, it is a cost-effective choice for industries seeking a durable and reliable material without incurring excessive costs. Overall, the advantages of using manganese-alloy steel round bars include superior strength, excellent wear resistance, good machinability, corrosion resistance, and cost-effectiveness. These qualities make them a popular choice in various industries where durability, reliability, and cost-efficiency are crucial.

Q: What are the factors affecting the price of steel round bars?: There are several factors that can affect the price of steel round bars. Firstly, the cost of raw materials plays a significant role. The price of iron ore, scrap metal, and other essential components used in the production of steel can fluctuate based on supply and demand dynamics in the global market. Another factor is the overall demand for steel round bars. As with any product, when demand is high, prices tend to increase. This can be influenced by various factors, including economic growth, construction and infrastructure projects, manufacturing activities, and international trade. The production and manufacturing costs also impact the price of steel round bars. Expenses such as labor, energy, transportation, and technology advancements can all contribute to the final price. Additionally, market competition can affect steel bar prices. When there is a higher number of suppliers or alternatives available in the market, it can drive prices down due to increased competition and the need to attract customers. Government regulations and policies can also play a role in pricing. Taxes, tariffs, duties, and trade regulations imposed by governments can impact the cost of steel round bars, especially in international trade scenarios. Lastly, currency exchange rates can influence the price of steel round bars. Fluctuations in currency values can affect the cost of imported or exported steel products, making them more expensive or cheaper depending on the exchange rate. Considering these factors, it is important for buyers and sellers of steel round bars to closely monitor market conditions and stay informed about any changes that may impact prices.

Q: Can steel round bars be used in the oil and gas industry?: Yes, steel round bars can be used in the oil and gas industry. They are commonly used in various applications such as drilling, production, and transportation of oil and gas. The high strength and durability of steel make it suitable for withstanding the harsh conditions and pressures encountered in this industry. Additionally, steel round bars can be easily machined and welded, making them a versatile choice for various oil and gas equipment and infrastructure.

Q: What is the difference between a circle and round steel continuous casting: Round steel drawn from a continuous casting is called a round billet; the rolled round steel is called a bar.

Q: What are the different types of steel alloy compositions used for round bars?: There are several different types of steel alloy compositions used for round bars, each with its own unique properties and applications. Some of the most common steel alloy compositions used for round bars include: 1. Carbon Steel: This is the most basic and widely used type of steel alloy composition for round bars. It primarily consists of iron and carbon, with small amounts of other elements. Carbon steel round bars are known for their strength, durability, and affordability. 2. Alloy Steel: This type of steel alloy composition contains additional alloying elements such as manganese, chromium, nickel, or molybdenum. Alloy steel round bars offer enhanced strength, hardness, and resistance to wear, making them suitable for applications that require high performance and durability. 3. Stainless Steel: Stainless steel round bars are composed primarily of iron, chromium, and nickel. This composition gives them excellent corrosion resistance and makes them suitable for applications in environments with high moisture or chemical exposure. Stainless steel round bars are also known for their aesthetic appeal and are commonly used in architectural and decorative applications. 4. Tool Steel: Tool steel round bars are specifically designed to have exceptional hardness, toughness, and wear resistance. They are often used in the production of cutting tools, dies, and molds. Tool steel compositions typically include elements such as tungsten, vanadium, or cobalt to enhance their performance in specific applications. 5. Duplex Steel: Duplex steel round bars are a type of stainless steel that contains a balanced combination of austenitic and ferritic microstructures. This composition gives them excellent strength and corrosion resistance, making them suitable for applications in demanding environments, such as offshore oil and gas industry. 6. High-Speed Steel: High-speed steel round bars are designed to withstand high temperatures and maintain their hardness and toughness at elevated speeds. They are commonly used in the production of cutting tools, drills, and milling cutters. High-speed steel compositions typically contain elements such as tungsten, molybdenum, or cobalt. These are just a few examples of the different types of steel alloy compositions used for round bars. The choice of composition depends on the specific application, desired properties, and performance requirements.

Q: How do you prevent steel round bars from rusting during storage?: In order to prevent rusting of steel round bars during storage, various measures can be taken: 1. Ensure the round bars are stored in a dry environment: Moisture is a major factor in causing rust. It is important to have a dry storage area that is free from leaks or humidity. Consider using dehumidifiers or moisture-absorbing products to maintain dryness. 2. Apply a rust inhibitor: Coating the steel round bars with a rust inhibitor creates a protective layer that prevents rust formation by blocking moisture and oxygen. Rust inhibitors are available in different forms, such as sprays, oils, or waxes. Follow the manufacturer's instructions when applying the inhibitor. 3. Store the round bars in a climate-controlled area: Fluctuations in temperature can result in condensation, which can lead to rust formation. Storing the round bars in a climate-controlled area with a consistent temperature helps minimize the risk of rusting. 4. Package the round bars properly: Use suitable packaging materials to prevent direct contact between the steel round bars and moisture or other contaminants. Consider wrapping them in plastic or using packaging materials that are resistant to moisture. 5. Regularly inspect and maintain: Periodically check the stored round bars for any signs of rust or damage. If any rust spots are found, clean them promptly and reapply a rust inhibitor to prevent further corrosion. Remember, prevention is crucial in avoiding rust on steel round bars during storage. By implementing these measures, you can greatly reduce the risk of rust formation and maintain the quality of the round bars.

Q: Can steel round bars be used for valve stem applications?: Yes, steel round bars can be used for valve stem applications. Steel round bars are commonly used in various industrial applications due to their high strength and durability. In valve stem applications, steel round bars are often used to provide stability and structural support to the valve stem, ensuring smooth operation and long-term performance. Additionally, steel round bars can be easily machined and fabricated to meet specific requirements, making them a versatile choice for valve stem applications.

Q: Are steel round bars suitable for use in the aerospace industry?: Steel round bars are indeed appropriate for utilization in the aerospace sector. These bars possess exceptional robustness and resilience, rendering them an optimal selection for diverse applications in aerospace engineering. With their elevated tensile strength, they can endure the extreme temperatures and pressures commonly encountered during aerospace operations. Additionally, steel round bars exhibit commendable resistance against corrosion, a vital attribute for preserving the structural integrity of aircraft that face varying environmental conditions. Furthermore, their ability to be easily machined and welded makes them highly adaptable for producing components and structures within the aerospace industry. Ultimately, steel round bars represent a dependable and economically viable material option for aerospace applications.

Q: What are the options for joining steel round bars?: There are several options for joining steel round bars, including welding, using mechanical fasteners such as bolts or screws, and adhesive bonding. The choice of method depends on factors such as the specific application, desired strength and durability, and available resources.

Q: How do you store steel round bars to prevent damage?: In order to store steel round bars and prevent damage, it is important to follow several crucial steps. Firstly, it is essential to keep the bars in a dry and well-ventilated area to avoid the buildup of moisture, which can lead to rusting. Additionally, moisture can cause the bars to become brittle and weaken over time. Next, it is recommended to store the round bars horizontally instead of vertically. This will prevent warping or bending caused by the weight of the bars pressing down on each other. If vertical storage is necessary, it is vital to use appropriate racks or supports that evenly distribute the weight. Furthermore, it is important to avoid stacking the bars too high, as excessive weight can cause deformation or collapse. If stacking cannot be avoided, sturdy supports should be used and the weight should be evenly distributed across the stack. Moreover, it is advisable to separate different sizes or types of steel round bars to prevent scratching or damage. This can be achieved by using separators or dividers to create distinct compartments for each type of bar. Lastly, regular inspection of the stored round bars for any signs of rust, corrosion, or damage is necessary. If any issues are detected, prompt measures should be taken to address them. This may involve applying rust inhibitors, cleaning the bars, or seeking assistance from professionals. By adhering to these storage guidelines, the steel round bars can be effectively protected from damage, ensuring their longevity and quality.

Send your message to us

*Email

*TEL

*Quantity

*Unit