AISI4140 Forged Round Bar with Turned Surface
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
16-300mm
Length:
6-12mm
Net Weight:
2mt
AISI4140 Forged Round Bar with Turned Surface
Product Description of AISI4140 Forged Round Bar with Turned Surface
1. Steel grade: ASTM4140, SCM440, 42CrMo, DIN1.7225
2. Length: 6M-12M
3. Diameter: 16mm-300mm
4. Product range: round bar, flat bar, square bar
5. Technique: Hot rolled, forged, cold drawn
Specification of AISI4140 Forged Round Bar with Turned Surface
Material | AISI4140 | Round bar | Dia(mm) | 16-300mm |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12m | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500mm |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200mm | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12m |
Chemical Composition of AISI4140 Forged Round Bar with Turned Surface
C | Si | Mn | Cr | Mo | P | S |
0.38~0.43 | 0.15~0.35 | 0.75~1.00 | 0.8~1.1 | 0.15~0.25 | ≤0.035 | <0.04< td=""> |
Photo Show of AISI4140 Forged Round Bar with Turned Surface
Packing and Delivery:
Packing in bundle package, or as customer's requirements.
Delivery Detail: 45 days after receiving the deposit.
Usage and Applications of AISI4140 Forged Round Bar with Turned Surface
1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some special material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
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.
F A Q
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.
- Q:What are the common applications of steel round bars?
- Steel round bars are highly valued in various industries because of their strength, versatility, and durability. They find widespread use in different sectors, including construction, manufacturing, automotive, aerospace, energy and power, and the oil and gas industry. In construction, steel round bars are commonly employed for building frames, bridges, and infrastructure, providing structural support and withstanding heavy loads. They are also frequently used to reinforce concrete structures, enhancing their strength and resilience. The manufacturing industry relies on steel round bars for the production of various components and machinery. Gears, shafts, couplings, and axles are commonly fabricated using these bars due to their excellent machinability and ability to withstand high levels of stress and pressure. Within the automotive sector, steel round bars are extensively used to manufacture critical components such as crankshafts, steering systems, suspension parts, and axles. Their high tensile strength and resistance to wear and tear play a crucial role in ensuring the safety and reliability of vehicles. The aerospace industry heavily depends on steel round bars for the production of aircraft components, including landing gear, propeller shafts, and structural elements. Steel's high strength-to-weight ratio and exceptional fatigue resistance make it an ideal choice for withstanding the extreme conditions experienced in aerospace applications. In the energy and power sector, steel round bars are employed in the manufacturing of equipment like turbines, generators, and power transmission systems. Steel's ability to handle high temperatures and its resistance to corrosion make it a suitable material for these applications. The oil and gas industry extensively utilizes steel round bars for the production of drilling equipment, pipelines, and valves. Steel's resistance to corrosion and high-pressure environments makes it an indispensable material in this sector. In conclusion, steel round bars find a multitude of applications across industries due to their strength, versatility, and resistance to wear and tear. They play a crucial role in construction, manufacturing, automotive, aerospace, energy and power, as well as the oil and gas industry.
- 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:What is the maximum aluminum content allowed for steel round bars?
- The maximum aluminum content allowed for steel round bars varies depending on the specific steel grade and industry standards. In general, the aluminum content in steel round bars is typically limited to a maximum of 0.03-0.06% for most commercial and structural steel grades. However, there are certain specialized steel grades, such as those used in the aerospace industry, where higher levels of aluminum content may be allowed. It is important to consult the specific steel grade's technical specifications or industry standards to determine the maximum allowable aluminum content for steel round bars.
- Q:What are the advantages of using aluminum-magnesium alloy steel round bars?
- There are several advantages of using aluminum-magnesium alloy steel round bars. Firstly, these bars have a high strength-to-weight ratio, making them lightweight yet sturdy, ideal for applications where weight reduction is crucial. Secondly, the alloy's corrosion resistance properties make it suitable for various environments, including marine and industrial settings. Additionally, aluminum-magnesium alloy steel round bars offer excellent thermal conductivity, allowing for efficient heat dissipation. Lastly, these bars can be easily machined, welded, and formed, providing flexibility during fabrication and reducing manufacturing costs.
- Q:What is the tensile strength of Q235 round steel?
- Nominal diameter 8-20 mm, yield point is greater than or equal to 235MPa, tensile strength greater than or equal to 370MPa, elongation is greater than or equal to 25%.
- Q:What are the different surface finishes for stainless steel round bars?
- There are several different surface finishes available for stainless steel round bars, including bright annealed, mill finish, brushed, polished, and satin. Each finish offers a distinct appearance and level of smoothness, allowing for various aesthetic and functional preferences.
- Q:How are steel round bars used in the construction of pipelines?
- Due to their high strength and durability, steel round bars are commonly employed in pipeline construction. Carbon or alloy steel is typically used to produce these bars, which can be obtained in various sizes and grades tailored to meet specific pipeline requirements. A primary application of steel round bars in pipeline construction is reinforcement. They are frequently utilized to reinforce concrete foundations and supports along the pipeline route. By providing additional strength and stability, these bars ensure the pipeline remains secure and capable of withstanding external forces like soil movement or seismic activity. Furthermore, steel round bars serve as the primary material for fabricating pipeline joints. These bars are commonly bent or welded into different shapes and sizes to connect distinct sections of the pipeline. The superior tensile strength of steel ensures the joints can endure the pressure and stress exerted by the transported fluids. Additionally, steel round bars find utility in the construction of pipeline hangers and supports. These bars are often shaped and welded to create brackets or clamps that hold the pipeline in place. By furnishing a robust and dependable support system, the bars prevent sagging or movement of the pipeline, guaranteeing a smooth and uninterrupted flow. In conclusion, steel round bars play a vital role in pipeline construction. They are employed for reinforcement, fabrication of pipeline joints, and the construction of hangers and supports. Their exceptional strength, durability, and versatility make them an ideal choice for ensuring the structural integrity and dependability of pipelines.
- Q:The difference between 304 stainless steel round bar and bright round bar
- The difference between the stainless steel round bar and the bright round steel of the same material is that the bright circle is cold rolled (or cold drawn), and the black circle is hot rolledThe processing method is different
- 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 different types of finishes available for steel round bars?
- Steel round bars offer a variety of finishes, each with its own unique properties and appearance. 1. Mill Finish: The most commonly used finish is the mill finish, where the steel is left in its natural state after rolling and cooling. This results in a rough texture and the possibility of surface imperfections. 2. Hot Rolled Finish: Achieved by heating the steel to high temperatures and shaping it through rolling. This finish provides a smooth surface and is typically used in applications where aesthetics are not a priority. 3. Cold Drawn Finish: Involves pulling the steel through a die to reduce its diameter and increase its length. This finish offers a smooth surface, improved dimensional accuracy, and tighter tolerances. 4. Polished Finish: Steel round bars can be polished to achieve a smooth and reflective surface. This is done using abrasive materials or compounds to remove imperfections and enhance appearance. 5. Ground Finish: A process that involves removing a thin layer of material from the steel surface using abrasive grinding wheels. This creates a smooth and even finish suitable for applications that require precise dimensions and tight tolerances. 6. Coated Finish: Steel round bars can be coated with different materials for added protection against corrosion or to enhance appearance. Common coatings include galvanization, which applies a layer of zinc, and powder coating, which provides durability and a decorative finish. When choosing a finish for a steel round bar, it is important to consider the specific application and desired properties. Factors such as corrosion resistance, aesthetics, dimensional accuracy, and surface quality should be taken into account.
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AISI4140 Forged Round Bar with Turned Surface
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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