• A36 Steel Round Bars from China with High Quality System 1
  • A36 Steel Round Bars from China with High Quality System 2
  • A36 Steel Round Bars from China with High Quality System 3
  • A36 Steel Round Bars from China with High Quality System 4
A36 Steel Round Bars from China with High Quality

A36 Steel Round Bars from China with High Quality

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
500 m.t.
Supply Capability:
2000000 m.t./month

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Description of steel round bar:

1.Diameter 80 to 800 mm 
2.Black or Bright surface 
3.Annealed or Quenched and tempered provided 
4.Cutting service provide. Carbon steel rod applies to chemical industry, shipping industry,

manufacturing industry,construction,decorate Industry,electric power,

pump shafts, sanitary wares,furniture handles,boiler,high temperature 

resistant,low temperature resistant, corrosion resistant.


Festures of steel round bar:

4340 Forged Round Steel Bar 
1.Dia 80-800mm Length:2000-13000mm or as required 
2.Technique:Forged 
3.Delivery Time:45 days 

 

Specifications of steel round bar:

1. Standards:  AISI 4340 8620 8640 4320 , JIS SNCM8  GB:40CrNiMoA 

2. Specification: Dia: 80~450mm  Length:2000-13000mm or as required


Images of steel round bar:

A36 Steel Round Bars from China with High Quality

FAQ:                                               

1. What is your package?

Packing situation: standard seaworthy packing or as customer required.

2. How long is the lead time?

Delivery time: 45 days after order confirmed.

3. What  payment term do you accept?

Payment: T/T or L/C at sight.

Q: What are the different surface defects that can be found in steel round bars?
There are several surface defects that can be found in steel round bars. These defects can vary in severity and can have an impact on the overall quality and performance of the steel. Some common surface defects include: 1. Scale: Scale refers to the thin, flaky layer of iron oxide that forms on the surface of steel during the manufacturing process. It can appear as a rough, scaly texture and may cause issues with adhesion or coating application. 2. Pitting: Pitting is the formation of small holes or depressions on the surface of the steel. It can be caused by corrosion, contamination, or uneven heating during the manufacturing process. Pitting can weaken the structural integrity of the steel and increase the likelihood of failure. 3. Scratches: Scratches are superficial marks or cuts on the surface of the steel. They can occur during handling, transportation, or processing. While small scratches may not significantly affect the performance of the steel, deep or extensive scratches can create stress concentrations and reduce the strength of the material. 4. Cracks: Cracks are linear fractures that can occur on the surface of the steel. They can be caused by excessive cooling, improper heat treatment, or mechanical stress. Cracks can propagate and lead to catastrophic failure if not detected and addressed. 5. Decarburization: Decarburization is the loss of carbon content on the surface of the steel due to exposure to high temperatures or improper heat treatment. It can result in a softer and weaker surface layer, reducing the material's strength and hardness. 6. Laminations: Laminations are layers or separations within the steel round bar that can occur due to improper rolling or manufacturing processes. These can weaken the material and reduce its load-bearing capacity. 7. Inclusions: Inclusions are non-metallic impurities or foreign substances that are trapped within the steel during the manufacturing process. They can include oxides, sulfides, or other debris. Inclusions can act as stress concentrators and reduce the material's resistance to cracking and deformation. Detecting and addressing these surface defects is crucial to ensure the quality and reliability of steel round bars. Various inspection techniques such as visual examination, ultrasonic testing, magnetic particle testing, or dye penetrant testing can be employed to identify and assess the severity of these defects.
Q: What are the advantages of using maraging steel round bars?
Maraging steel round bars offer several advantages. Firstly, they possess exceptional strength and hardness, making them ideal for applications requiring high-performance materials. Additionally, maraging steel round bars have excellent toughness and resistance to fatigue, ensuring durability under demanding conditions. They also exhibit good corrosion resistance, reducing the risk of degradation over time. Furthermore, maraging steel is known for its machinability and ease of welding, facilitating efficient processing and fabrication. Overall, these advantages make maraging steel round bars a preferred choice in industries such as aerospace, defense, and tooling.
Q: Can steel round bars be used in the manufacturing of hydraulic components?
Indeed, the utilization of steel round bars is feasible for the production of hydraulic components. Owing to its robustness, endurance, and corrosion resistance, steel is widely employed in the fabrication of hydraulic components. By molding and machining steel round bars, an assortment of hydraulic components, including pistons, cylinders, valves, and fittings, can be manufactured. The adoption of steel round bars guarantees the capability of withstanding elevated pressures and maintaining optimal performance across diverse hydraulic systems.
Q: How do steel round bars compare to cast iron bars?
Steel round bars and cast iron bars have several key differences. Firstly, steel round bars are typically stronger and more durable than cast iron bars. Steel has a higher tensile strength and can withstand greater loads and impacts. On the other hand, cast iron bars are more brittle and can break under excessive pressure. Secondly, steel round bars have better corrosion resistance, making them suitable for outdoor or marine applications. Cast iron bars, however, are prone to rusting and require regular maintenance. Lastly, steel round bars offer greater versatility as they can be easily machined, welded, and formed into various shapes. Cast iron bars are more difficult to manipulate and have limited customization options. Overall, steel round bars are generally preferred in industries where strength, durability, and versatility are crucial factors.
Q: How are steel round bars used in the manufacturing of conveyor systems?
Steel round bars are commonly used in the manufacturing of conveyor systems as they provide the necessary strength and durability for supporting heavy loads, guiding conveyor belts, and maintaining stability. These bars are often used as support beams, rollers, and shafts within the conveyor system, ensuring efficient movement of materials along the production line.
Q: What are the different types of steel round bar alloys for improved toughness and wear resistance?
There are several different types of steel round bar alloys that are specifically designed to offer improved toughness and wear resistance. These alloys are often used in applications where strength and durability are essential. Some of the commonly used alloys include: 1. Alloy Steel: Alloy steel round bars are made by adding different alloying elements such as chromium, nickel, molybdenum, or vanadium to enhance their mechanical properties. These alloys offer increased strength, toughness, and wear resistance. 2. Stainless Steel: Stainless steel round bars are corrosion-resistant alloys that contain a minimum of 10.5% chromium. They have excellent toughness, high strength, and superior wear resistance. Stainless steel round bars are widely used in industries such as aerospace, automotive, and construction. 3. Tool Steel: Tool steel round bars are specifically designed for applications where high wear resistance and toughness are crucial. These alloys are commonly used in the manufacturing of cutting tools, dies, and molds. Tool steel alloys often contain elements such as tungsten, vanadium, or molybdenum to improve their hardness and wear resistance. 4. Carbon Steel: Carbon steel round bars are widely used due to their high strength and toughness. These alloys contain varying amounts of carbon and are known for their excellent wear resistance. Carbon steel round bars find applications in industries such as manufacturing, construction, and automotive. 5. Bearing Steel: Bearing steel round bars are designed to withstand high stress and provide excellent wear resistance. These alloys are commonly used in the production of ball bearings, roller bearings, and other high-performance bearing components. Bearing steel alloys typically contain elements such as chromium, silicon, and manganese to enhance their mechanical properties. In conclusion, there are various types of steel round bar alloys available that offer improved toughness and wear resistance. The selection of the most suitable alloy depends on the specific application requirements and desired mechanical properties.
Q: How can steel round bars be protected against corrosion?
Steel round bars can be protected against corrosion through various methods such as applying a protective coating, galvanizing, using corrosion inhibitors, or implementing cathodic protection. These techniques form a barrier between the steel surface and corrosive elements, preventing or slowing down the process of corrosion.
Q: Can steel round bars be used in the chemical industry?
Indeed, steel round bars find utility in the chemical industry. Owing to its remarkable robustness and endurance, steel is frequently favored for employment in this sector. The construction of storage tanks, pipelines, and equipment within chemical plants often involves the utilization of steel round bars. The material's resistance to corrosion renders it suitable for the handling of diverse chemicals, acids, and alkalis. Furthermore, steel round bars offer exceptional structural reinforcement, a pivotal factor in upholding the integrity and safety of chemical processes. On the whole, steel round bars are an esteemed and extensively employed substance within the realms of the chemical industry.
Q: Can steel round bars be used for making cutlery or kitchen utensils?
Certainly, cutlery or kitchen utensils can indeed be crafted using steel round bars. Steel is a favored option for kitchen utensils due to its robustness, endurance, and ability to resist corrosion. Nevertheless, the specific steel variant and the manufacturing process employed will determine its suitability for culinary purposes. Stainless steel, for instance, is highly recommended for cutlery and kitchen utensils due to its resistance to rust and stains, effortless cleaning, and non-reactivity with food. Moreover, steel round bars can be effortlessly molded and shaped into a myriad of utensil designs, rendering them an adaptable material for the production of cutlery and kitchenware.
Q: Can steel round bars be used in the transportation industry?
Yes, steel round bars can be used in the transportation industry. They are commonly used in the construction of various vehicle components such as axles, suspension systems, and chassis frames due to their high strength and durability.

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