Hot Rolled Square Bar with High Quality of Grade Q235，Q275
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 3000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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Product Description:
OKorder is offering Hot Rolled Square Bar with High Quality of Grade Q235，Q275 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 Square Bar with High Quality of Grade Q235，Q275 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 Square Bar with High Quality of Grade Q235，Q275 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 Description:
-Standard: Q235 Q275
--Chemical Composition:
Standard | Grade | Element (%) | ||||
GB | Q235/275 | C | Mn | S | P | Si |
0.06~0.12 | 0.25~0.50 | ≤0.050 | ≤0.045 | ≤0.30 | ||
Measures of HR Square Bar (small measures):
(Section of HR Square Bar)
-Length of a side and Theoretical weight of Square Bar.
Length of a side(mm) | Theoretical weight(kg/m) | Length of a side(mm) | Theoretical weight(kg/m) |
7 | 0.385 | 22 | 3.80 |
8 | 0.502 | 24 | 4.52 |
9 | 0.636 | 25 | 4.91 |
10 | 0.785 | 26 | 5.30 |
11 | 0.950 | 28 | 6.15 |
12 | 1.13 | 30 | 7.06 |
13 | 1.33 | 32 | 8.04 |
14 | 1.54 | 34 | 9.07 |
15 | 1.77 | 36 | 10.17 |
16 | 2.01 | 38 | 11.24 |
17 | 2.27 | 40 | 12.56 |
18 | 2.54 | 42 | 13.85 |
19 | 2.82 | 45 | 15.90 |
20 | 3.14 | 48 | 18.09 |
21 | 3.46 | 50 | 19.63 |
Notes:
1, The theoretical weights in the list, base on the density of 7.85 g/cm3.
2, Formula for theoretical weight of Square bar: (length of a side)2 * 0.00785
3, The numbers with ＊mean that they are not regular or we don’t offer them.
-Regular length of Square Bar:
Steel | Length of a side (mm) | Length of steel (m) |
Normal steel | < 25 | 4~10 |
> 25 | 3~9 | |
Steel of high quality | All measure | 2~6 |
Tool steel >75 | 1~6 |
Usage/Applications of HR Square Bar:
-The Square Bar is normally used as structure steel.
-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…
Packaging & Delivery of HR Square Bar:
-Packing Detail: The products can be packed in bundles by steel wires.
-Marks: We make tag marks and color marks. The tag marks with white background and red company logo will be tied up to each bundle of the products. The information is usually including basic information of products and company and other information requested by customers. As for color marks, we will paint both ends of bundles to make sure that it will be more convenient for customers to distinguish them from other products.
-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.
Transportation:
-The products can be delivered by bulk vessel or by container. As for container, products with the length of 6m will be loaded in 20’ container, with 9m or 12m, in 40’ container.
-The maximum quantity of loading of container is 25 tons.
-The products are usually transported to the nearest port from the production place.
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.
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.
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- Q:Are steel billets recyclable?
- Steel billets can indeed be recycled. As one of the most widely recycled materials globally, steel has a well-established and remarkably efficient recycling process for its billets. When these billets reach the end of their usefulness, they can be melted and repurposed to create new steel products. By engaging in this recycling process, we not only conserve precious natural resources but also decrease energy consumption and minimize our environmental footprint. Moreover, recycling steel billets aids in diminishing landfill waste while supporting the circular economy and promoting the sustainable utilization of resources.
- Q:What is the standard tolerance for steel billet dimensions?
- The specific industry and application can cause variation in the standard tolerance for steel billet dimensions. Generally, the standard tolerance for steel billet dimensions ranges from ±0.005 to ±0.010 inches (±0.13 to ±0.25 mm). These tolerances ensure that the steel billets meet the necessary specifications and standards. It is worth mentioning that different industries and applications might have their own distinct tolerances based on their unique standards and requirements. Thus, it is vital to refer to the relevant industry or application-specific standards to determine the exact tolerance for steel billet dimensions.
- Q:What are the different types of cleaning methods used for steel billets?
- There are several different types of cleaning methods used for steel billets. These include mechanical cleaning methods such as shot blasting or wire brushing, chemical cleaning methods like pickling or acid cleaning, and thermal cleaning methods such as annealing or heat treatment. Each method is chosen based on the specific requirements and condition of the steel billets to ensure effective and efficient cleaning.
- Q:What is the drop per minute of the billet temperature at 850?
- Cold rolling is not considered. The initial rolling temperature (surface) of the billet is generally 1000-1150 degrees. Generally, the temperature decreases gradually during the rolling process (a small section of high speed wire has a temperature rising process), usually above 750 degrees
- Q:How are steel billets used in the production of construction components?
- Steel billets are an essential raw material in the production of construction components. They are primarily used in the manufacturing of various structural elements such as beams, columns, and bars that form the framework of buildings and infrastructure projects. The process begins with steel billets, which are semi-finished products made from molten steel that has been cast into rectangular or square shapes. These billets are then further processed and transformed into specific construction components through various manufacturing techniques. One common application of steel billets is in the production of beams, which are essential for supporting the weight of floors, roofs, and walls in buildings. Billets are processed through rolling mills, where they are heated and passed through a series of rollers to shape them into the desired beam profile. This process allows for the production of beams of different sizes and lengths, catering to the unique requirements of each construction project. Steel billets are also used in the production of columns, which provide vertical support to structures. Similarly to beams, billets are processed through rolling mills to obtain the required column shape. The columns are then joined to the beams to form the skeletal framework of the building, providing strength and stability. In addition to beams and columns, steel billets are employed in the production of bars used for reinforcing concrete. These reinforcing bars, commonly known as rebar, are crucial for enhancing the strength and durability of concrete structures. Billets are again processed through rolling mills to create rebar of various diameters and lengths. The rebar is then embedded within the concrete to provide tensile strength, preventing cracking and increasing the overall structural integrity. Overall, steel billets play a vital role in the production of construction components by serving as the starting point for the manufacturing process. They are transformed into beams, columns, and rebar, providing the necessary strength and stability required in the construction of buildings and infrastructure projects.
- Q:Are steel billets susceptible to corrosion?
- Steel billets can be affected by corrosion. Steel, which is mostly made up of iron and carbon, is prone to corrosion because of the presence of iron. When exposed to moisture and oxygen, a chemical reaction occurs on the surface of the steel, resulting in the formation of rust, also known as iron oxide. This corrosion weakens the structure of the steel and can eventually cause it to fail. To prevent corrosion, protective layers are often applied or anti-corrosion agents are used on steel billets. Common methods include galvanizing, where a layer of zinc is added, or coating the steel with paint or epoxy. Additionally, storing steel billets in dry environments and ensuring proper ventilation can help reduce the risk of corrosion. It's worth noting that the susceptibility to corrosion can also depend on the specific composition and grade of the steel used in the billets. Certain types of stainless steel, for example, contain additional elements such as chromium and nickel, which offer improved resistance to corrosion. However, even stainless steel can corrode under certain conditions, although at a slower rate compared to regular carbon steel. Regular inspection, maintenance, and appropriate corrosion prevention measures are essential in ensuring the long-lasting durability of steel billets.
- Q:How are steel billets used in the manufacturing of wire rods?
- Steel billets are an integral part of the manufacturing process for wire rods. These billets, which are essentially semi-finished steel products, serve as the raw material for producing wire rods. The first step in the manufacturing process involves heating the steel billets to a high temperature in a furnace. This process, known as heating or re-heating, helps to soften the steel and make it more malleable. Once the billets are heated, they are then passed through a series of rolling mills. In these mills, the billets are subjected to intense pressure and are gradually shaped into wire rod form. The rolling process elongates the steel billets and reduces their diameter to the desired size. After the initial rolling, the wire rods undergo further processing to enhance their strength, surface finish, and dimensional accuracy. This may involve various techniques such as cooling, heat treatment, and surface conditioning. Finally, the wire rods are cut into specific lengths and undergo quality control checks to ensure that they meet the required standards. They are then ready to be used in various applications such as construction, automotive, and electrical industries. In summary, steel billets play a crucial role in the manufacturing of wire rods. They are heated, rolled, and processed to create wire rods of different sizes and properties. These wire rods are then used in a wide range of industries, making them an essential component in the manufacturing sector.
- Q:What is the role of steel billets in the construction of sports facilities?
- Steel billets play a crucial role in the construction of sports facilities as they are the raw material used to manufacture various steel components such as beams, columns, and reinforcements. These components provide structural support and stability to the sports facility, ensuring its durability and safety. Additionally, steel billets are also used to create seating structures, roofing systems, and other architectural elements, enhancing the overall aesthetics and functionality of the sports facility.
- Q:How are steel billets used in the manufacturing of electrical transmission equipment?
- Steel billets are often used as raw material in the manufacturing of electrical transmission equipment. They are typically forged or machined to create various components such as brackets, supports, and housings. These billets provide the necessary strength, durability, and dimensional stability required for the equipment to withstand high electrical loads and harsh operating conditions.
- Q:What is the difference between continuous casting billet and cast billet?
- Mainly to see the process, general casting efficiency is low, but the quality is acceptable, with low level (open casting billet) has great advantages in surface quality;
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Hot Rolled Square Bar with High Quality of Grade Q235，Q275
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 3000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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