Hot Rolled Steel Round Bar High Qulity Made In China JIS ASTM GB
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 20000 m.t./month
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Specification
Product Description:
OKorder is offering Hot Rolled Steel Round Bar High Qulity Made In China JIS ASTM GB 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:
Hot Rolled Steel Round Bar High Qulity Made In China JIS ASTM GB are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Hot Rolled Steel Round Bar High Qulity Made In China JIS ASTM GB 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. Material: Alloy structural steels, carbon structure steels, alloy tool and model steels,etc.
2. Process: EAF + LF + VD + Forged + Heat Treatment (optional)
3. Delivery condition:Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)
4.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing.
5. Test: Ultrasonic test according to SEP 1921-84 3C/c.
Chemical Composition:
C | Si | Mn | P | S | Cr | |
45Cr | 0.42-0.49 | 0.17-0.37 | 0.6-0.9 | Max0.035 | Max0.035 | 0.3 0.4 |
S45C | 0.42-0.48 | 0.15-0.35 | 0.6-0.9 | Max0.030 | Max0.035 | |
1045 | 0.43-0.5 | 0.15-0.35 | 0.6-0.9 | Max0.030 | Max0.050 |
Usage and Applications of Common Steel Round Bar
1. Common Steel Round Bar of 8-25mm, 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. Steel round bar is used in construction and a large number of architectural and engineering structures.
3. 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.
Packaging & Delivery of Common Steel 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
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
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.
Q5: Can stainless steel rust?
A5: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
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- Q: How do steel round bars compare to brass round bars?
- Steel round bars and brass round bars have several key differences that make them suitable for different applications. Firstly, steel round bars are much stronger and more durable compared to brass round bars. Steel has a higher tensile strength, making it ideal for applications that require high strength and resistance to heavy loads. It is commonly used in construction, manufacturing, and automotive industries where strength and durability are crucial. On the other hand, brass round bars are known for their excellent corrosion resistance and electrical conductivity. Brass is an alloy of copper and zinc, which gives it a unique combination of properties. It is often used in applications that require good electrical conductivity, such as electrical connectors, plumbing fittings, and musical instruments. Brass also has an attractive golden appearance, making it a popular choice for decorative purposes. In terms of cost, steel round bars are generally more affordable compared to brass round bars. Steel is widely available and produced in large quantities, resulting in a lower cost per unit. Brass, being an alloy of copper, which is a relatively expensive metal, is generally more expensive. Another important factor to consider is machinability. Steel round bars are generally easier to machine and work with compared to brass round bars. Steel has good cutting and drilling properties, making it easier to fabricate into various shapes and sizes. Brass, on the other hand, tends to have a higher machinability rating, meaning it is easier to cut and shape compared to other metals. In summary, steel round bars are stronger, more durable, and generally more affordable than brass round bars. They are suitable for applications that require high strength and resistance to heavy loads. Brass round bars, on the other hand, offer excellent corrosion resistance, electrical conductivity, and an attractive appearance. They are commonly used in applications that require good electrical conductivity and for decorative purposes. The choice between steel and brass round bars ultimately depends on the specific requirements of the application.
- Q: Are steel round bars prone to deformation?
- Yes, steel round bars can be prone to deformation under certain conditions. Factors such as excessive heat, extreme pressure, or improper handling can cause steel round bars to bend, warp, or twist. However, when manufactured and used properly, steel round bars are highly durable and resistant to deformation.
- Q: Can steel round bars be used in the manufacturing of tools?
- Indeed, tools can be manufactured using steel round bars. The utilization of steel round bars in tool manufacturing is prevalent owing to their exceptional strength, endurance, and adaptability. These bars furnish the essential structural stability and resilience essential for a variety of tools, including wrenches, hammers, chisels, and screwdrivers. The circular form of the bar facilitates effortless machining and formation into diverse tool constituents. Moreover, steel round bars can undergo heat treatment to augment their hardness and resistance to wear, rendering them suitable for demanding and high-achieving tool applications.
- Q: What are the different heat treatment processes used for steel round bars?
- Steel round bars can undergo several heat treatment processes to enhance their mechanical properties and overall performance. These processes include annealing, normalizing, quenching, tempering, and case hardening. 1. Annealing involves heating the steel round bars to a specific temperature and then slowly cooling it to relieve internal stresses and improve ductility. It also refines the grain structure, making the steel softer and more workable. 2. Normalizing is similar to annealing, but the steel round bars are cooled in still air. This process refines the grain structure and improves mechanical properties like strength and toughness. 3. Quenching is a rapid cooling process where the steel round bars are immersed in a quenching medium such as oil, water, or polymer. It achieves high hardness and strength by transforming the steel's microstructure into martensite. However, it can also make the steel more brittle, so tempering is often done afterward. 4. Tempering involves reheating the quenched steel round bars to a specific temperature and then slowly cooling it. This process reduces the brittleness caused by quenching and improves toughness and ductility. The temperature and duration of tempering can be adjusted for desired mechanical properties. 5. Case hardening is a surface heat treatment process that increases hardness and wear resistance. Carbon or other alloying elements are introduced to the steel's surface, which is then heated to a specific temperature. This creates a hardened outer layer while maintaining a tough core. These heat treatment processes offer steel round bars a wide range of mechanical properties and performance characteristics, making them suitable for various applications in industries like automotive, construction, manufacturing, and aerospace. The choice of specific heat treatment process depends on desired properties, steel composition, and intended application of the round bars.
- Q: What is the difference between a bright and a hot rolled steel round bar?
- The manufacturing processes and resulting characteristics distinguish a bright steel round bar from a hot rolled steel round bar. To produce a hot rolled steel round bar, the steel billet or ingot is heated to a high temperature and then rolled through a series of rolling mills to achieve the desired shape. As a result, the bar has a rough surface texture with a scale layer on the outside. These bars are commonly used in structural applications where strength and durability are crucial. They have a rough appearance and may require additional processing, such as grinding or machining, to achieve a smooth surface finish. In contrast, a bright steel round bar, also known as a cold drawn or cold finished bar, is created by drawing the hot rolled steel bar through a series of dies at room temperature. This process enhances the dimensional accuracy, surface finish, and mechanical properties of the steel. The resulting bright steel bar has a smooth and shiny surface, devoid of scale or rough texture. These bars are frequently used in applications that require an excellent surface finish and tight dimensional tolerances, such as the production of precision components or for decorative purposes. In conclusion, the primary distinction between a bright and a hot rolled steel round bar lies in their surface finish, dimensional accuracy, and applications. Hot rolled steel bars feature a rough surface texture and are suitable for structural applications, while bright steel bars have a smooth and shiny surface finish, making them ideal for precision or decorative applications.
- Q: What is the difference between a cold finished and a turned steel round bar?
- Cold finished steel round bars and turned steel round bars are utilized in various industries for different purposes. The manufacturing process and resulting properties distinguish these two types of steel bars. For a cold finished steel round bar, the production involves cold drawing or cold rolling a hot rolled steel bar. This entails passing the hot rolled bar through a series of dies at room temperature, which decreases its diameter and increases its length. Through the cold drawing process, the steel acquires specific mechanical properties, including enhanced surface finish, dimensional accuracy, and increased strength. Cold finished steel bars possess a sleek, glossy surface and are renowned for their precise tolerances and consistent size and shape. They find common usage in applications requiring precision and high-quality surface finish, such as the automotive, aerospace, and machining industries. Conversely, a turned steel round bar is created by machining a hot rolled or cold finished bar on a lathe. The bar is secured and rotated while a cutting tool eliminates material from its outer surface, resulting in the desired shape and dimensions. This turning process yields a bar with a rougher surface compared to a cold finished bar. However, it enables faster production and versatility in creating diverse shapes and sizes. Turned steel bars are frequently employed in applications where the surface finish is not crucial but machining operations are necessary, such as in the construction, engineering, and manufacturing industries. In conclusion, the distinction between a cold finished and a turned steel round bar lies in the manufacturing process and the resulting properties. Cold finished bars are produced through cold drawing or cold rolling, leading to improved dimensional accuracy, surface finish, and strength. Turned bars are machined on a lathe, providing flexibility in shape and size but with a rougher surface finish. The choice between the two depends on the specific requirements of the application, including tolerance, surface finish, strength, and machinability.
- Q: What are the environmental impacts of steel round bar production?
- The production of steel round bars has several environmental impacts. Firstly, the extraction of raw materials such as iron ore and coal required for steel production leads to habitat destruction, deforestation, and disruption of ecosystems. Mining activities also generate large amounts of waste, including tailings and waste rock, which can contaminate soil, water bodies, and air. The process of converting iron ore into steel involves high energy consumption, primarily from fossil fuels. The burning of these fuels releases greenhouse gases, such as carbon dioxide and nitrogen oxides, contributing to climate change and air pollution. Additionally, steel production releases particulate matter, sulfur dioxide, and other pollutants that can have detrimental effects on human health and ecosystems. Steel manufacturing also requires significant amounts of water for cooling, cleaning, and processing. This can lead to water scarcity and pollution if proper water management practices are not in place. Discharge of untreated or inadequately treated wastewater from steel production can contaminate nearby water sources, affecting aquatic life and potentially harming human populations who rely on these water bodies. Furthermore, the transportation of raw materials and finished steel products over long distances contributes to carbon emissions and air pollution. The energy-intensive nature of steel production and transportation further exacerbates the overall environmental impacts of the industry. To mitigate these environmental impacts, the steel industry has been implementing various measures. These include the use of more efficient technologies, such as recycling and minimization of waste, improving energy efficiency, and adopting cleaner production processes. Additionally, the industry has been focusing on reducing its carbon footprint by increasing the use of renewable energy sources and implementing carbon capture and storage technologies. Overall, while steel round bar production contributes to environmental degradation, there are ongoing efforts within the industry to minimize its negative impacts and transition towards more sustainable practices.
- Q: How do you store excess steel round bars?
- To store excess steel round bars, it is important to follow certain guidelines to ensure their longevity and prevent any damage. Here are a few steps you can take: 1. Properly clean and inspect the steel round bars before storage. Remove any dirt, grease, or moisture from the surface to prevent corrosion. 2. Choose an appropriate storage location. Ideally, it should be a dry, well-ventilated area with stable temperatures. Avoid storing the bars in areas prone to moisture, extreme heat, or direct sunlight. 3. Use racks or pallets to store the bars. Stack them horizontally, one on top of another, with enough space between each layer to prevent deformation or bending. 4. If storing the bars outdoors, cover them with a waterproof tarp or protective coating to shield them from rain, snow, and other elements. 5. Avoid placing excessive weight on top of the bars to prevent deformation. Be mindful of any sharp objects or edges nearby that could cause damage. 6. Regularly inspect the stored bars to ensure no signs of corrosion, rust, or other damage. If any issues are detected, take the necessary steps to address them promptly. Remember, proper storage is crucial to preserve the quality and integrity of the steel round bars. By following these guidelines, you can ensure that your excess steel round bars remain in good condition until they are needed for future use.
- Q: Is there a steel bar of 6 diameter on the market?
- Reinforced concrete (Rebar) is used for reinforced concrete and prestressed reinforced concrete steel, its cross section is round, sometimes with rounded square.
- Q: What are the different types of steel round bar alloys used in the automotive industry?
- In the automotive industry, some of the commonly used steel round bar alloys include carbon steel, alloy steel, stainless steel, and tool steel. Carbon steel is widely used due to its affordability and high strength. Alloy steel, on the other hand, is known for its enhanced mechanical properties and resistance to wear and tear. Stainless steel is popular for its corrosion resistance, making it suitable for parts exposed to harsh environments. Lastly, tool steel is utilized for its exceptional hardness and ability to withstand high temperatures, often used in the production of cutting and shaping tools for automotive manufacturing.
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Hot Rolled Steel Round Bar High Qulity Made In China JIS ASTM GB
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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