Hot Roll Square Steel Bar with Grade Q195 / Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
OKorder is offering Hot Roll Square Steel Bar with Grade Q195 / Q235 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 Roll Square Steel Bar with Grade Q195 / Q235 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 Roll Square Steel Bar with Grade Q195 / Q235 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:
We offer Square Steel Bar with grade Q195 / Q235
Specifications of Square Steel Bar:
-Standard: GB,
-Grade: Q195/Q235 or equivalent.
Chemical Composition:
-Chemical Composition. Q195
Standard | Grade | Element (%) | ||||
GB | Q195 | C | Mn | S | P | Si |
0.06~0.12 | 0.25~0.50 | ≤0.050 | ≤0.045 | ≤0.30 | ||
-Chemical Composition. Q235
Standard | Grade | Element (%) | ||||
GB | Q235B | C | Mn | S | P | Si |
0.12~0.20 | 0.30~0.70 | ≤0.045 | ≤0.045 | ≤0.30 | ||
Measures and Tolerances of Square Steel Bar:
(The section of Square Steel Bar)
The length of a side and the theoretical weight of Square Steel.
Length of a side(a, mm) | Theoretical weight(kg/m) | Length of a side(a, mm) | Theoretical weight(kg/m) |
6 | 0.283 | 32 | 8.04 |
7 | 0.385 | ＊33 | 8.55 |
8 | 0.502 | 34 | 9.07 |
9 | 0.636 | ＊35 | 9.62 |
10 | 0.785 | 36 | 10.17 |
11 | 0.950 | 38 | 11.24 |
12 | 1.13 | 40 | 12.56 |
13 | 1.33 | 42 | 13.85 |
14 | 1.54 | 45 | 15.90 |
15 | 1.77 | 48 | 18.09 |
16 | 2.01 | 50 | 19.63 |
17 | 2.27 | 53 | 22.05 |
18 | 2.54 | ＊55 | 23.6 |
19 | 2.82 | 56 | 24.61 |
20 | 3.14 | ＊58 | 26.4 |
21 | 3.46 | 60 | 28.26 |
22 | 3.80 | 63 | 31.16 |
＊23 | 4.15 | ＊65 | 33.17 |
24 | 4.52 | ＊68 | 36.3 |
25 | 4.91 | 79 | 38.49 |
26 | 5.30 | 75 | 44.16 |
＊27 | 5.72 | 80 | 50.24 |
28 | 6.15 | 85 | 56.72 |
＊29 | 6.60 | 90 | 63.59 |
30 | 7.06 | 95 | 70.85 |
＊31 | 7.54 | 100 | 78.50 |
Notes:
1, The theoretical weights in the list, base on the density of 7.85 g/cm3.
2, The numbers with ＊mean that they are not regulars or we don’t offer them
-The allowed tolerance of Square Steel:
Length of a side(mm) | Allowed Tolerance | ||
Group1 | Group2 | Group3 | |
5.5～7 | ±0.20 | ±0.30 | ±0.40 |
7～20 | ±0.25 | ±0.35 | ±0.40 |
20～30 | ±0.30 | ±0.40 | ±0.50 |
30～50 | ±0.40 | ±0.50 | ±0.60 |
60～80 | ±0.60 | ±0.70 | ±0.80 |
80～110 | ±0.90 | ±1.0 | ±1.1 |
110～150 | ±1.2 | ±1.3 | ±1.1 |
150～190 | ―― | ―― | ±2.0 |
190～250 | ―― | ―― | ±2.5 |
Usage/Applications of Steel Square Bar:
-The Square Steel is normally used as structure steel.
-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc
Packaging & Delivery of Steel Square Bar:
-Packing Detail: The products can be packed in bundles by steel wires.
-Marks:
1, Tag marks: the tag marks will be tied up to each bundle of the products. The information is usually including supplier’s logo and name, product name, made in China, products’ specifications, the painted color and other information requested by customers.
2, Color marks: we will paint both ends of the bundles of these products to make sure that they are more evident. It’s will be more convenient for the customers to distinguish them at the destination port.
-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 usually are transported to the nearest port from the production place.
Payment:
-Invoicing on theoretical weight or actual weight a s customer’s request.
-FOB, CFR or CIF.
-Regular terms of payment:
1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L.
2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L.
3, Negotiable.
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.
- Q:What are the different surface treatments applied to stainless steel billets?
- There are several different surface treatments that can be applied to stainless steel billets, depending on the desired outcome and application. Some common treatments include passivation, pickling, electropolishing, and blasting. Passivation helps to improve corrosion resistance by removing any free iron from the surface. Pickling involves the use of acids to remove impurities and oxide layers from the surface. Electropolishing is an electrochemical process that provides a smooth and shiny finish. Blasting, on the other hand, involves using abrasive particles to remove surface contaminants and create a textured finish. These treatments can enhance the appearance, cleanliness, and durability of stainless steel billets for various industrial applications.
- Q:What are the different methods of surface treatment for steel billets?
- Various methods exist for surface treatment of steel billets, each serving a distinct purpose and offering unique advantages. Among the most commonly employed techniques are: 1. Pickling: This involves immersing the steel billets in an acid solution to eliminate surface impurities like rust or scale. Pickling enhances surface finish and readies the steel for subsequent treatment or processing. 2. Shot blasting: In this method, high-speed steel shots or grits are used to bombard the steel billets, eliminating surface contaminants and creating a uniform texture. Shot blasting is frequently employed to remove rust, scale, or paint, and it can enhance the adhesion of subsequent coatings or paints. 3. Galvanizing: This treatment entails coating the steel billets with a layer of zinc to provide corrosion resistance. Galvanizing can be accomplished through hot-dip galvanizing, where the steel is immersed in a molten zinc bath, or through electroplating, where a thin layer of zinc is deposited on the surface using an electric current. 4. Painting or powder coating: Steel billets can be painted or coated with powder to deliver both aesthetic appeal and protection against corrosion. Paints or powder coatings create a barrier between the steel surface and the environment, preventing moisture and other corrosive agents from reaching the metal. 5. Passivation: This method requires treating the steel billets with a chemical solution, typically an acid, to remove any free iron or iron oxide from the surface. Passivation enhances the corrosion resistance of stainless steel and other alloys by creating a passive oxide layer that safeguards against further oxidation or rusting. 6. Nitriding: Nitriding is a surface hardening treatment where the steel billets are exposed to an atmosphere rich in nitrogen at elevated temperatures. This process diffuses nitrogen into the steel's surface, forming a hardened layer that enhances wear resistance and improves fatigue strength. 7. Chrome plating: Steel billets can be coated with a layer of chromium through electroplating, providing enhanced corrosion resistance and a glossy appearance. Chrome plating is frequently utilized in applications where aesthetics and durability are crucial, such as automotive parts or decorative fixtures. These examples represent only a fraction of the available surface treatment methods for steel billets. The selection of a particular technique depends on factors such as the desired outcome, the specific properties required, and the intended application of the steel billets.
- Q:How are steel billets used in the manufacturing of power transmission towers?
- Steel billets are used in the manufacturing of power transmission towers as they are heated and shaped into various sections and components, such as angles, channels, and plates. These billets serve as the raw material that is further processed and welded together to create the sturdy and durable structure of power transmission towers, ensuring their stability and ability to withstand heavy loads and extreme weather conditions.
- Q:What are the different forming processes used for steel billets?
- There are various methods for forming steel billets, each possessing unique advantages and applications. These methods encompass: 1. Casting: This process involves the pouring of molten steel into a mold for solidification. It is commonly employed for large-scale steel billet production, as it allows for the creation of intricate shapes and sizes. However, casting may result in surface defects and necessitate additional finishing procedures. 2. Extrusion: The extrusion process entails the forceful passage of a steel billet through a die to achieve a desired shape. It is frequently used to fabricate long, uniform sections like bars, rods, and tubes. Extrusion ensures high precision and superior surface finish, rendering it suitable for applications where dimensional accuracy is crucial. 3. Rolling: Rolling is a widely utilized method for shaping steel billets. It involves passing the billet through a set of rollers to decrease its cross-sectional area and increase its length. Rolling can be carried out at high or low temperatures, depending on the desired properties of the final product. This versatile and cost-effective process can produce an extensive range of shapes, including flats, rounds, and squares. 4. Forging: Forging is a technique in which a steel billet is heated and shaped through compressive forces. This process is renowned for generating robust, durable components with exceptional mechanical properties. Forging can be executed via various methods such as open-die forging, closed-die forging, and press forging. It is commonly employed for manufacturing high-strength parts like gears, crankshafts, and connecting rods. 5. Swaging: Swaging is a process that involves reducing the diameter of a steel billet by forcefully pushing it through a series of dies. It is frequently employed for shaping tubular sections such as pipes and tubes. Swaging guarantees high accuracy and tight tolerances, making it suitable for applications that require precise fitting or specific diameters. 6. Drawing: Drawing is a process in which a steel billet is pulled through a die to decrease its cross-sectional area while increasing its length. It is commonly used for producing wires, cables, and thin tubes. Drawing ensures excellent surface finish and dimensional accuracy, making it suitable for applications that demand fine wire or precise tubing. Each of these forming processes possesses distinct advantages and is chosen based on the specific requirements of the application at hand.
- Q:How are steel billets used in the production of wire rods?
- Steel billets are a crucial raw material in the production of wire rods. These billets, which are cylindrical in shape, serve as the starting point for the wire rod manufacturing process. The process begins with the heating of steel billets in a furnace to achieve the desired temperature for hot rolling. Once heated, the billets are passed through a series of rolling mills, where they undergo a process called hot rolling. This process involves passing the billets through a set of rollers that gradually reduce their diameter, while increasing their length. As a result, the billets transform into long, thin, and continuous wire rods. During hot rolling, the steel billets undergo plastic deformation, meaning that their shape changes under the application of heat and pressure. This process helps to align the internal grain structure of the steel, resulting in improved mechanical properties such as strength, ductility, and toughness. After the hot rolling process, the wire rods are typically coiled and cooled. They may then undergo further treatments such as pickling, surface coating, or heat treatment to enhance their quality and suitability for specific applications. Finally, the wire rods are ready to be used in various industries, such as automotive, construction, and manufacturing, for the production of a wide range of products, including wires, cables, nails, screws, and reinforcement bars. In summary, steel billets are transformed into wire rods through the process of hot rolling. This process involves heating the billets, passing them through rolling mills to reduce their diameter and increase their length, and then further treating and cooling them. The resulting wire rods are used in a multitude of applications, making them an essential component in the production of various products.
- Q:What is the purpose of using steel billets in manufacturing?
- The purpose of using steel billets in manufacturing is to create a reliable and versatile raw material for various industrial applications. Steel billets are semi-finished products that are produced through the continuous casting or hot rolling process. These solid rectangular or square-shaped bars of steel serve as the building blocks for creating a wide range of steel products. One of the primary purposes of using steel billets is to provide a consistent and high-quality material with specific mechanical properties. Steel, being an alloy of iron and carbon, can be customized by adjusting the carbon content, alloying elements, and heat treatment processes. By controlling these variables during the production of steel billets, manufacturers can ensure that the resulting steel products possess desired characteristics such as strength, hardness, ductility, and corrosion resistance. Furthermore, steel billets allow manufacturers to efficiently shape and form the desired end products. They can be further processed through various techniques such as hot rolling, forging, extrusion, or machining to create different shapes, sizes, and profiles. Steel billets serve as the starting point for the production of a wide range of steel products, including bars, rods, tubes, wire, structural shapes, and even complex components for machinery, automobiles, construction, and infrastructure projects. Additionally, using steel billets in manufacturing offers several advantages. Steel is known for its exceptional strength, durability, and versatility, making it an ideal material for a diverse range of applications. Steel billets provide a cost-effective option for manufacturers as they can be mass-produced and easily transformed into different forms. Moreover, steel is highly recyclable, ensuring a sustainable and environmentally friendly manufacturing process. In summary, the purpose of using steel billets in manufacturing is to provide a consistent and high-quality raw material that can be shaped and processed into various steel products. Steel billets offer the flexibility, strength, and durability required for a wide range of industrial applications, making them an essential component in the manufacturing industry.
- Q:How do steel billets contribute to the manufacturing of construction machinery?
- Steel billets are an essential raw material in the manufacturing of construction machinery as they are the starting point for forging or casting various components. These billets are heated and shaped into desired forms, such as gears, axles, and structural frames, which provide strength, durability, and stability to the machinery. The high-quality steel used in billets ensures that the construction machinery can withstand heavy loads, harsh environments, and demanding construction tasks, making them crucial for the overall performance and safety of these machines.
- Q:What are the potential applications of steel billets in the automotive sector?
- Steel billets have a wide range of potential applications in the automotive sector due to their strength, durability, and versatility. They can be used to manufacture various automotive components such as engine parts, chassis, suspension systems, and transmission components. Additionally, steel billets can be shaped and formed into different sizes and shapes to meet the specific requirements of automotive manufacturers. Overall, their potential applications in the automotive sector contribute to the production of safer, more efficient, and reliable vehicles.
- Q:What is alpha carbon? What is beta carbon?
- The method of marking C is generally used in organic matter, and the C atom directly connected with the functional group is called alpha carbon.
- Q:What are the main disadvantages of using steel billets?
- One of the main disadvantages of using steel billets is their high cost. Steel billets require significant energy and resources to produce, which can lead to higher manufacturing expenses. Additionally, steel billets are heavy and difficult to transport, resulting in higher shipping costs. Another disadvantage is the limited availability of certain steel grades, leading to potential supply chain challenges. Finally, steel billets are prone to corrosion if not properly protected, requiring additional maintenance and protection measures.
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Hot Roll Square Steel Bar with Grade Q195 / Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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