• steel carbon round bar System 1
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steel carbon round bar

steel carbon round bar

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Product Description:

OKorder is offering Round Bar at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

 

Product Applications:

 

1. Hot rolled round bar of 6-25mm, or small round is mostly used for straight bundles supply, and used for steel, bolts and various mechanical parts. While the bigger round bar, or more than 25mm hot rolled bar, is mainly for the manufacture of mechanical parts or for seamless steel billet.

2. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.

  

Product Advantages:

OKorder's Round Bar are durable, strong, and resist corrosion.

 

Main Product Features:

·         Premium quality

·         Prompt delivery & seaworthy packing (30 days after receiving deposit)

·         Corrosion resistance

·         Can be recycled and reused

·         Mill test certification

·         Professional Service

·         Competitive pricing

 

Product Specifications:

 

1. Grade: Q195, Q235, Q345

2. Diameter: 6mm-150mm

3. Length: 6m, 9m, 12m or as customer’s request

4. Tolerance: Within ±5% for weight; ±2mm for diameter

5. Note: The price can be better is the quantity is good

6. Chemical composition

Alloy No

Element (%)

C

Mn

S

P

Si

Q195

0.06-0.12

0.25

≤0.05

≤0.045

≤0.3

Q235

0.12—0.20

0.3—0.7

≤0.045

≤0.045

≤0.3

Q345

≤0.2

1.00-1.60

≤0.045

≤0.045

≤0.55

 

Packaging & Delivery of Round Bar

Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: 45 days

Trade terms: FOB, CFR, CIF

Quality Assurance of  Round Bar

1. We will strictly inspect our production that we sold according to the customer’s request.

2. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.

3. Should the packing found damaged, the buyer has the right to claim to the seller.

 

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase?

A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Q4: What makes stainless steel stainless?

A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

 

Images:

 

Q:How are steel round bars tested for quality?
To ensure that steel round bars meet the necessary standards and specifications, various methods are employed to test their quality. One commonly used test is visual inspection, which involves carefully examining the bars for any visible defects such as surface cracks, pits, or deformities. This task is carried out by highly skilled personnel who have been trained to identify irregularities that could potentially impact the quality of the steel bars. Another crucial test is dimensional inspection, which assesses the diameter, length, and straightness of the round bars. This ensures that the bars fall within the specified tolerances and meet the required dimensions for their intended use. Mechanical testing is also conducted to evaluate the strength and mechanical properties of the steel bars. This includes tests like tensile strength, yield strength, and elongation, which determine how the bars will perform under different loads and conditions. Specialized equipment is used to carry out these tests, providing important information about the structural integrity and quality of the steel bars. Moreover, chemical composition analysis is performed to verify that the steel bars have the correct proportions of various elements, such as carbon, manganese, and alloying elements. This analysis is crucial as it determines the suitability of the bars for specific applications and ensures that they possess the desired characteristics. Additionally, non-destructive testing methods, such as ultrasonic testing, magnetic particle inspection, or dye penetrant testing, may also be employed. These techniques can detect internal or surface defects that may not be visible to the naked eye, providing further confidence in the quality and integrity of the steel bars. In summary, a combination of visual inspection, dimensional inspection, mechanical testing, chemical composition analysis, and non-destructive testing methods is used to thoroughly assess the quality of steel round bars. These rigorous testing processes are essential in ensuring that the bars meet the required standards and specifications, guaranteeing customers high-quality and reliable steel products.
Q:Can steel round bars be used for making suspension springs?
Yes, steel round bars can be used for making suspension springs. Steel is a common material choice for suspension springs due to its strength, durability, and ability to withstand high loads and vibrations. Steel round bars can be readily shaped, tempered, and heat-treated to meet the specific requirements of suspension springs, providing necessary flexibility and resilience.
Q:Can steel round bars be used for making sculptures?
Yes, steel round bars can be used for making sculptures. Steel is a versatile and durable material that can be easily shaped and manipulated into various forms, making it suitable for sculpting. The round bars can be welded, bent, or cut to create the desired shapes and structures for the sculpture. Additionally, steel's strength and resistance to corrosion make it a long-lasting choice for outdoor sculptures.
Q:What's the difference between a round tube and a round tube?
Round steel is solid and round tubes are hollow
Q:How do you identify the grade of a steel round bar?
The grade of a steel round bar can be identified through several methods. One way is to check the markings or labels on the bar itself. Manufacturers often stamp or engrave the grade directly onto the surface of the bar. These markings typically include information such as the grade designation (e.g., 304, 316, 4140), which represents the specific alloy composition, and may also include additional details such as the heat or lot number. Another method is to refer to the mill test certificate (MTC) that accompanies the steel round bar. The MTC provides comprehensive information about the composition, mechanical properties, and other relevant specifications of the material. The MTC is usually issued by the steel mill or supplier and can be requested upon purchase. Moreover, visual inspection and physical testing can help identify the grade of a steel round bar. Visual inspection involves observing the bar's appearance, texture, and color. Different grades of steel may exhibit distinct characteristics, such as a shiny or matte finish, specific surface treatments, or variations in color due to different alloying elements. Physical testing methods, such as tensile or hardness testing, can provide further confirmation of the steel grade. These tests measure the mechanical properties of the material, such as its strength, ductility, and hardness. By comparing the test results with known standards and specifications for different steel grades, one can determine the grade of the round bar. In summary, to identify the grade of a steel round bar, one can check for markings on the bar, refer to the mill test certificate, visually inspect the bar, and perform physical tests to assess its mechanical properties.
Q:What are the different types of heat treatments used for steel round bars?
Steel round bars can undergo various heat treatments to enhance their physical and mechanical properties for specific uses. 1. Annealing: To improve ductility and ease of workability, the steel is heated to high temperatures and gradually cooled, typically in a furnace. This relieves internal stresses and reduces the likelihood of cracking. 2. Normalizing: Similar to annealing, normalizing involves heating the steel to high temperatures and allowing it to cool in still air. This process refines the grain structure, leading to improved strength and toughness. 3. Quenching and tempering: This treatment involves rapidly cooling the steel after heating it to high temperatures, using liquids like oil or water. Quenching hardens the steel, increasing its strength and resistance to wear and deformation. However, this process can render the steel brittle, so tempering follows, which entails reheating the steel to lower temperatures and gradually cooling it. Tempering reduces brittleness while maintaining strength. 4. Case hardening: This treatment creates a hardened outer layer on the steel's surface while preserving a softer, more ductile core. By heating the steel with a carbon-rich material like charcoal or gas, carbon diffuses into the surface, forming a wear-resistant layer. The core remains tough and able to withstand shocks. 5. Stress relieving: This treatment alleviates internal stresses resulting from manufacturing processes like machining or welding. The steel is heated below its critical point and slowly cooled, effectively reducing residual stresses and enhancing dimensional stability. These represent only a selection of the common heat treatments employed for steel round bars. The choice of treatment depends on the desired properties and intended applications of the steel.
Q:Are steel round bars suitable for machining applications?
Steel round bars are a suitable choice for machining applications. They possess excellent machinability, enabling easy shaping, cutting, and drilling through various techniques like turning, milling, drilling, and grinding. These bars find extensive use in industries such as automotive, aerospace, construction, and manufacturing, where precision and durability hold utmost importance. Due to their high strength, toughness, and resistance to wear, steel round bars are perfect for machining applications that demand high-performance components or parts. Moreover, they are offered in a diverse range of grades and sizes, ensuring versatility in meeting specific machining needs.
Q:What are the typical hardness values for different grades of steel round bars?
The hardness values for different grades of steel round bars can vary depending on the specific grade and the manufacturing process used. However, there are some typical hardness values that can be used as a general guideline. For low carbon or mild steel round bars, the typical hardness values range from about 120 to 250 Brinell Hardness (HB). These grades of steel are known for their relatively low strength and hardness but can be easily machined and welded. Medium carbon steel round bars, commonly used in applications that require higher strength and hardness, typically have hardness values ranging from about 200 to 400 HB. These grades of steel are often used in construction, automotive, and machinery industries. High carbon or alloy steel round bars, which offer even greater strength and hardness, can have hardness values ranging from 400 to 700 HB or even higher. These grades of steel are commonly used in applications that require high wear resistance, such as cutting tools, gears, and bearings. It is important to note that these hardness values are approximate and can vary depending on factors such as heat treatment, alloy composition, and the specific manufacturing process employed. Therefore, it is always recommended to consult the manufacturer's specifications or conduct hardness testing to determine the exact hardness values for a specific grade of steel round bar.
Q:What are the advantages of using tin-alloy steel round bars?
There are several advantages of using tin-alloy steel round bars. Firstly, the addition of tin improves the corrosion resistance of the steel, making it suitable for applications in harsh environments or exposure to moisture. Secondly, tin-alloy steel round bars offer enhanced machinability, allowing for easier shaping and fabrication, which can save time and reduce production costs. Additionally, tin can improve the strength and hardness of the steel, making it more durable and resistant to wear and tear. Lastly, tin-alloy steel round bars have excellent thermal conductivity, making them suitable for applications in heat transfer or electrical industries.
Q:Can steel round bars be used in the automotive parts industry?
Indeed, the automotive parts industry does make use of steel round bars. These bars, renowned for their remarkable strength, resilience, and ability to withstand wear and tear, are frequently employed in the production of diverse automotive components. By shaping and sizing these bars to suit the specific needs of axles, drive shafts, suspension components, steering components, and gears, manufacturers ensure that automotive parts are crafted to the highest standards. The utilization of steel round bars guarantees the structural soundness and dependability of these components, rendering them perfectly equipped to endure the rigorous conditions and burdens encountered in the automotive sector.

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