Hot Rolled Mild Steel Round Bar Q235 Q345 Q355
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
Hot Rolled Mild Steel Round Bar Q235 Q345 Q355
Name | SAE1045 Carbon Steel Round Bar |
Shape | Round Bar/Square Bar/Flat Bar/Plate/Wire |
Standard | GB/ASTM/SAE/AISI/DIN/JIS/EN/BS |
Surface Treatment: | Black/Peeling/Polished/Machined |
Delivery Condition: | Hot Rolled or Forged/Peeled or Black Surface |
Test | SGS/UT 100% Elements Testing |
Certificate: | ISO/Mill Certificate |
Service: | 24 hours online service / |
more than 20 years trading and manufacture | |
Quality Assurance: | the third party inspection, such as SGS, BV, TUV…etc. is acceptable |
Packaging Details: | seaworthy packaging or as per customer's packing instruction |
Products Overview
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) |
Packaging & Delivery
Packaging Detail | Sea worthy packing /as per customer's packing instruction |
Delivery Detail | 15 ~ 40 days after receiving the deposit |
Product Show
Workshop
FAQ
Are you a trading company or manufacturer? | Manufacturer |
What’s the MOQ? | 3 metric ton |
What’s your delivery time? | 15-35 days after downpayment received |
Do you Accept OEM service? | Yes |
what’s your delivery terms? | FOB/CFR/CIF |
What's the Payment Terms? | 30% as deposit,70% before shipment by T/T |
Western Union acceptable for small amount. | |
L/C acceptable for large amount. | |
Scrow ,Paybal,Alipay are also ok | |
Why choose us? | Chose happens because of quality, then price, We can give you both. |
Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals. | |
What's your available port of Shipment? | Main Port, China |
What’s your featured services? | Our service formula: good quality+ good price+ good service=customer's trust |
Where are your Market? | Covering more than 160 countries in the world |
- Q: What are the different methods of surface lapping for special steel?
- There are several different methods of surface lapping for special steel. These methods are used to achieve a high level of flatness and smoothness on the surface of the steel. One common method is called free abrasive lapping. In this method, a slurry containing abrasive particles is used to polish the surface of the steel. The slurry is typically applied to a rotating lap plate, which is then pressed against the steel surface. The abrasive particles remove material from the surface, resulting in a smoother and flatter surface. Another method is called fixed abrasive lapping. In this method, a rigid lap plate with abrasive particles embedded in it is used to polish the steel surface. The lap plate is typically made of a harder material than the steel being lapped. As the lap plate rotates and is pressed against the steel surface, the embedded abrasive particles remove material, resulting in a smoother surface. Chemical lapping is another method that can be used for special steel. In this method, a chemical solution is applied to the steel surface. The chemical solution reacts with the surface of the steel, dissolving and removing a thin layer of material. This method is often used when a high level of flatness is required. Ultrasonic lapping is a method that uses ultrasonic vibrations to enhance the lapping process. In this method, the steel surface is placed in contact with a bath of abrasive particles and a liquid medium. Ultrasonic vibrations are then applied to the liquid medium, causing the abrasive particles to vibrate and remove material from the surface of the steel. This method can be particularly effective for lapping hard and brittle materials. Overall, the different methods of surface lapping for special steel offer various approaches to achieve the desired level of flatness and smoothness. The selection of the method depends on factors such as the type of steel, the desired surface finish, and the specific requirements of the application.
- Q: What are the requirements for special steel used in robotic applications?
- Optimal performance and reliability of robotic applications necessitates special steel that meets specific key requirements. These requirements encompass: 1. Exceptional strength: The steel utilized in robotic applications must possess outstanding strength properties to endure the stresses and loads encountered during robotic operations. It should exhibit superior tensile and yield strength to ensure structural integrity and prevent failure when subjected to heavy loads. 2. Resistance to wear: The steel employed in robotic applications should demonstrate high resistance to wear, enabling it to withstand repetitive motions, sliding, and abrasive contact with different surfaces. This characteristic minimizes wear and tear, thereby extending the lifespan of robotic components. 3. Protection against corrosion: Robotic applications often involve exposure to diverse environments, including moisture, chemicals, and other corrosive agents. Consequently, the special steel employed must possess excellent corrosion resistance to prevent degradation and maintain optimal performance over time. 4. Toughness: Good toughness is essential for special steel, allowing it to absorb energy and resist fracture or cracking. This attribute is crucial to ensure that the steel can withstand sudden shocks or impacts without catastrophic failure, thereby enhancing the safety and reliability of the robotic system. 5. Machinability: Robotic components often necessitate intricate shapes and precise dimensions. Therefore, the special steel used must exhibit good machinability, enabling easy cutting, shaping, and forming without excessive tool wear or manufacturing difficulties. 6. Heat resistance: Some robotic applications involve exposure to high temperatures, such as in welding or metalworking processes. Hence, it is imperative for the special steel to possess good heat resistance, maintaining its mechanical properties and structural integrity even under elevated temperatures. 7. Magnetic properties: Certain robotic applications may require non-magnetic steel to prevent interference with electromagnetic sensors or systems. Consequently, special steel with low magnetic permeability is often preferred for such applications. By fulfilling these requirements, special steel employed in robotic applications can deliver the necessary strength, durability, and performance essential for efficient and reliable robotic operations across various industries, including manufacturing, healthcare, and exploration.
- Q: Can special steel be used in the production of cutting tools?
- Yes, special steel can be used in the production of cutting tools.
- Q: What are the properties of corrosion-resistant steel?
- Corrosion-resistant steel, also known as stainless steel, possesses several key properties. Firstly, it has a high resistance to corrosion, making it suitable for use in environments with exposure to moisture or corrosive substances. Secondly, it contains a minimum of 10.5% chromium, which forms a protective layer called chromium oxide on the surface, preventing further corrosion. Additionally, it has a strong resistance to staining, which makes it easy to clean and maintain. Moreover, corrosion-resistant steel exhibits excellent strength and durability, making it suitable for a wide range of applications in various industries.
- Q: Can special steel be used in the electronics manufacturing industry?
- Yes, special steel can be used in the electronics manufacturing industry. Special steel alloys, such as stainless steel or high-strength low-alloy (HSLA) steel, offer excellent properties like corrosion resistance, electrical conductivity, and magnetic shielding, making them suitable for various electronic components like connectors, sensors, circuit boards, and casings. These specialized steel materials ensure durability, protection, and reliable performance in demanding electronic applications.
- Q: What are the different methods for improving the electrical conductivity of special steel?
- Special steel can have improved electrical conductivity through various methods. One common approach involves adding alloying elements like copper or silver, which increase the number of free electrons in the steel, thereby enhancing its electrical conductivity. Another option is subjecting the steel to heat treatment processes like annealing or normalizing. These heat treatments refine the steel's microstructure, reducing impurities and promoting electron movement. Surface treatments, such as electroplating or coating the steel with conductive materials like copper or nickel, also enhance its electrical conductivity. These treatments create a conductive layer on the steel's surface, facilitating better electron flow. Furthermore, refining the steel's grain size through techniques like grain boundary engineering or severe plastic deformation can improve its electrical conductivity. Smaller grain sizes enable more efficient electron movement and minimize scattering, resulting in improved conductivity. Lastly, proper cleaning and removal of surface contaminants or oxides significantly enhance the electrical conductivity of special steel. By eliminating impurities and ensuring a clean surface, the steel can establish better contact and conductivity. It is important to consider that the specific method chosen to improve the electrical conductivity of special steel depends on the intended application and the desired level of conductivity. Different industries and applications may require tailored approaches to achieve the desired outcomes.
- Q: How is special steel recycled or disposed of?
- The material known as special steel, or alloy steel, is highly valuable and in great demand because of its unique properties and uses. When it comes to disposing of or recycling special steel, there are several methods available depending on the condition and quality of the material. Recycling is the most preferred and commonly used method for managing special steel. The recycling process involves gathering, organizing, and melting down the steel scrap so that it can be reused in the production of new steel products. This process helps to preserve natural resources, reduce energy consumption, and minimize waste. The initial step in recycling special steel involves collecting scrap or end-of-life products that contain this material. These sources can include discarded machinery, automotive parts, construction materials, and even old appliances. Once collected, the steel is sorted and separated from other materials, such as plastic, rubber, or non-ferrous metals, using various techniques like magnetic separation, eddy current separation, or manual sorting. After the sorting process, the steel scrap is sent to a specialized recycling facility, commonly referred to as a steel mill or foundry. Here, the scrap is melted down in large furnaces at extremely high temperatures. During this process, impurities and contaminants are removed, and alloying elements can be added to achieve the desired composition and properties of the steel. Once the steel has been melted and purified, it is cast into various forms such as ingots, billets, or slabs, which can then be used to manufacture new steel products. These products may include pipes, bars, plates, or even new machine parts, depending on the specific needs of the industry. When it comes to disposal, special steel should be seen as a valuable resource and not simply discarded as waste. However, in cases where the steel is irreparably damaged or contains hazardous materials, proper disposal methods must be followed. This typically involves seeking advice from specialized waste management companies that can handle the safe and environmentally friendly disposal of such materials. In conclusion, special steel is primarily recycled due to its high value and the various benefits associated with recycling. Through the processes of collection, sorting, and melting, special steel can be transformed into new products while conserving resources and minimizing waste. Proper disposal methods are only necessary in exceptional cases where recycling is not feasible or when dealing with damaged or hazardous materials.
- Q: How does special steel perform in high-temperature creep?
- Special steel has been specifically engineered to excel in conditions of high-temperature creep. Creep refers to the material's inclination to deform over time under consistent stress at elevated temperatures. Due to its unique composition and heat treatment procedures, special steel demonstrates exceptional resistance to creep. The alloying elements, including chromium, nickel, and molybdenum, significantly enhance its strength at high temperatures and its ability to resist creep. These elements create stable carbides and enhance the material's capacity to maintain its structural integrity even when exposed to elevated temperatures. Additionally, special steel often undergoes specific heat treatment methods, such as annealing or quenching and tempering, to further improve its resistance to creep. These processes refine the steel's microstructure, reduce internal stresses, and enhance its overall mechanical properties. The combination of alloying elements and heat treatment processes endows special steel with exceptional resistance to creep. It can endure prolonged exposure to high temperatures without significant deformation or failure. This makes special steel an ideal choice for applications involving high-temperature and high-stress conditions, such as gas turbines, petrochemical plants, and power generation facilities. In conclusion, the performance of special steel in situations of high-temperature creep is exceptional, and it is widely acknowledged as a dependable and durable material for applications requiring resistance to thermal deformation and long-term stability under constant stress.
- Q: How does special steel perform in welding applications?
- Special steel, also known as alloy steel, performs exceptionally well in welding applications. Its unique composition, which includes various alloying elements such as manganese, chromium, and nickel, enhances its weldability and overall performance. The addition of these alloying elements significantly improves the strength, hardness, and corrosion resistance of the steel, making it highly suitable for welding applications. Special steel possesses excellent weldability, allowing for easy fusion and formation of strong and durable weld joints. Furthermore, the alloying elements in special steel also contribute to its heat resistance, making it capable of withstanding high temperatures during the welding process without losing its structural integrity. This property is particularly crucial in applications where welding involves high heat levels or prolonged exposure to extreme temperatures. Moreover, special steel exhibits good ductility and toughness, enabling it to withstand the stresses and strains associated with welding. It can effectively absorb and disperse heat during the welding process, minimizing the risk of distortion or cracking in the welded joints. In addition to its mechanical properties, special steel also offers excellent resistance to corrosion and oxidation. This makes it highly suitable for welding applications in environments where exposure to moisture, chemicals, or harsh weather conditions is a concern. The corrosion resistance of special steel ensures that the welded joints maintain their strength and integrity over time, even in challenging environmental conditions. Overall, the performance of special steel in welding applications is outstanding, owing to its excellent weldability, strength, heat resistance, and corrosion resistance. Its unique composition and properties make it a preferred choice for a wide range of welding projects, including structural fabrication, pipeline construction, automotive manufacturing, and many more.
- Q: How does special steel perform in cryogenic gas environments?
- Special steel performs well in cryogenic gas environments due to its low temperature resistance and high strength. It has excellent toughness and can withstand extreme cold temperatures without becoming brittle or undergoing significant deformation. This makes it ideal for applications such as cryogenic storage tanks, pipelines, and equipment used in industries like aerospace, energy, and scientific research, where materials need to maintain their integrity and performance in extremely cold conditions.
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Hot Rolled Mild Steel Round Bar Q235 Q345 Q355
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3 m.t.
- Supply Capability:
- 10000 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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