• Hot  Rolled GB Standard Round Steel Bar Q235, SAE1020 System 1
  • Hot  Rolled GB Standard Round Steel Bar Q235, SAE1020 System 2
  • Hot  Rolled GB Standard Round Steel Bar Q235, SAE1020 System 3
Hot  Rolled GB Standard Round Steel Bar Q235, SAE1020

Hot Rolled GB Standard Round Steel Bar Q235, SAE1020

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Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
200000 m.t./month

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Product Description:

OKorder is offering Hot  Rolled GB Standard Round Steel Bar Q235, SAE1020 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 GB Standard Round Steel Bar Q235, SAE1020 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries. Carbon steel round bar is the most common form of steel because its price is relatively low while it provides material properties that are acceptable for many applications, more so than iron. It is often used when large quantities of steel are needed, for example as structural steel. The density of this product is approximately 7.85g/cm³ and the young's modulus, like all steels.

 

Product Advantages:

OKorder's Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 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

 

Specifications of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020

1. Grade: Q235, SS400, S235JR, A36

2. Sizes: Diameter: 6mm-150mm; Length: 6m, 9m, 12m or as customer’s request

3. Type: Mild steel; Low carbon steel

4. Shape: Round bar, solid bar of steel with circular section

5. Technique: Hot rolled or cold drawn

6. Mass: Mass(kg/m) = Diameter(mm)×Diameter(mm)×0.00617

Steel Type

Maximum forging temperature (°F / °C)

Burning temperature (°F / °C)

1.5% carbon

1920 / 1049

2080 / 1138

1.1% carbon

1980 / 1082

2140 / 1171

0.9% carbon

2050 / 1121

2230 / 1221

0.5% carbon

2280 / 1249

2460 / 1349

0.2% carbon

2410 / 1321

2680 / 1471

3.0% nickel steel

2280 / 1249

2500 / 1371

3.0% nickel–chromium steel

2280 / 1249

2500 / 1371

5.0% nickel (case-hardening) steel

2320 / 1271

2640 / 1449

Packaging & Delivery of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020

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.

 

Production Flow of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020

1. The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.

2. EAF+LF+VD+ Forged+ Heat Treatment

FAQ:

Q1: How soon can we receive the product after purchase?

A1: 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.

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: Can fit in the containers of 20fts the steel beams of 6M?

A3: No proble, we can put them into the containers in the form sideling.

Q: What are the advantages of using manganese-alloy steel round bars?
Manganese-alloy steel round bars offer several advantages. Firstly, they possess excellent strength and durability, making them ideal for applications that require high load-bearing capacity. Secondly, the presence of manganese in the alloy enhances hardenability, resulting in improved wear resistance and toughness. This makes manganese-alloy steel round bars suitable for use in environments with abrasive conditions or high impact forces. Additionally, these round bars exhibit good machinability, allowing for easy fabrication and shaping. Lastly, the corrosion resistance of manganese-alloy steel ensures a longer lifespan, reducing maintenance requirements and costs in various industries.
Q: Are steel round bars available in different surface finishes?
Different surface finishes are available for steel round bars. The surface finish of a steel round bar pertains to the surface treatment or coating that is applied to it. This treatment serves to enhance its appearance, protect it from corrosion, or improve its performance for specific uses. Steel round bars can be found with various surface finishes such as polished, brushed, mill finish, galvanized, or coated with materials like chrome, nickel, or zinc. These diverse surface finishes cater to different needs and preferences in terms of aesthetics, corrosion resistance, and functionality across various industries and applications.
Q: How do steel round bars perform in outdoor or marine environments?
Steel round bars generally perform well in outdoor or marine environments due to their inherent strength and corrosion resistance. The composition of steel, particularly stainless steel, enables it to withstand exposure to moisture, saltwater, and other harsh elements without significant degradation or rusting. This makes steel round bars a dependable choice for construction, infrastructure, and marine applications where durability and longevity are crucial.
Q: What are the different types of steel round bar surface finishes used in the construction industry?
The different types of steel round bar surface finishes commonly used in the construction industry include mill finish, hot rolled, cold drawn, and polished finishes.
Q: What are the advantages of using nickel-chromium-aluminum alloy steel round bars?
There are several advantages of using nickel-chromium-aluminum alloy steel round bars. Firstly, this type of alloy steel offers excellent strength and toughness, making it suitable for applications that require high resistance to corrosion, heat, and oxidation. Secondly, the inclusion of nickel and chromium enhances the alloy's ability to withstand extreme temperatures, making it ideal for use in environments with high heat or pressure. Additionally, the aluminum content promotes good formability, allowing for easier machining and fabrication. Lastly, the nickel-chromium-aluminum alloy steel round bars exhibit good weldability, making them versatile and easy to work with in various industries such as aerospace, automotive, and manufacturing.
Q: Can steel round bars be heat treated for improved strength?
Yes, steel round bars can be heat treated to improve their strength. Heat treatment involves subjecting the steel to specific heating and cooling processes to alter its microstructure and properties. The most common heat treatment processes for steel round bars are quenching and tempering. During quenching, the steel round bar is heated to a high temperature and then rapidly cooled by immersing it in a quenching medium such as water, oil, or polymer. This rapid cooling helps to harden the steel by transforming its microstructure into a martensitic structure, which is harder and stronger. After quenching, the steel round bar is often tempered to reduce its brittleness and increase its toughness. Tempering involves reheating the quenched steel to a lower temperature and then slowly cooling it. This process relaxes the internal stresses created during quenching and allows the steel to achieve a balance between hardness and toughness, resulting in improved strength. It is important to note that the specific heat treatment process and parameters will depend on the type and grade of steel being used. Therefore, it is recommended to consult with a metallurgical expert or refer to the manufacturer's guidelines to determine the appropriate heat treatment process for a particular steel round bar to achieve the desired strength improvement.
Q: How do you calculate the length of a steel round bar?
To calculate the length of a steel round bar, measure the distance from one end to the other using a ruler, tape measure, or any other measuring tool.
Q: How do you prevent steel round bars from rusting during storage?
To prevent steel round bars from rusting during storage, it is important to keep them in a dry environment with low humidity. Applying a coating of protective oil or wax can also help create a barrier against moisture and prevent rust formation. Additionally, storing the bars off the ground and away from direct contact with concrete or other materials that may cause corrosion can further prevent rusting. Regular inspections and maintenance are crucial to ensure the bars remain rust-free.
Q: What are the different types of steel round bar surface treatments?
Steel round bars can undergo various surface treatments to enhance their appearance, durability, and resistance to corrosion. Some commonly used treatments are: 1. Hot-dip galvanizing: Immerse the steel round bar in molten zinc to create a protective zinc coating, preventing rust and corrosion. Ideal for outdoor applications. 2. Electroplating: Apply a layer of another metal, like chrome or nickel, to the steel round bar. Improves appearance and corrosion resistance. 3. Powder coating: Electrostatically apply a dry powder to the surface, then cure it under heat. Creates a hard, durable, and attractive finish resistant to chipping, scratching, and fading. 4. Passivation: Chemically remove impurities from the surface, leaving a clean and corrosion-resistant layer. Commonly used for enhancing rust resistance in stainless steel bars. 5. Black oxide coating: Form a thin layer of black iron oxide on the surface. Provides mild corrosion resistance and a sleek black appearance. 6. Shot blasting: Propel abrasive materials at high speeds onto the surface to remove impurities or scale. Improves appearance and promotes better coating adhesion. 7. Acid pickling: Immerse the bar in an acid bath to remove scale and impurities, leaving a clean surface free from contaminants. These treatments are just a few examples of what can be done to steel round bars. The choice depends on factors such as the bar's intended use, desired appearance, and required corrosion resistance level.
Q: What is the cost of a steel round bar?
The cost of a steel round bar can vary depending on several factors such as the size, grade, and supplier. Generally, the larger the diameter and length of the round bar, the higher the cost. The grade of steel also plays a significant role in determining the price, as different grades have varying levels of strength and durability. Additionally, the supplier and location can impact the cost due to factors like transportation and market demand. To get an accurate cost estimate, it is best to contact a local supplier or check online metal marketplaces for current prices.

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