Hot Rolled Mild Square Steel Billet Q195, Q235
- Ref Price:
-
- 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 Mild Square Steel Billet 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 Rolled Mild Square Steel Billet 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.
-The Square Steel is normally used as structure steel.
-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…
Product Advantages:
OKorder's Hot Rolled Mild Square Steel Billet 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
Specifications of Hot Rolled Mild Square Steel Billet Q195, Q235:
-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 |
Packaging & Delivery of Hot Rolled Mild Square Steel Billet Q195, Q235:
-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.
FAQ:
Q1: Why buy Hot Rolled Mild Square Steel Billet Q195, Q235 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: What is the normal tolerance of Hot Rolled Mild Square Steel Billet Q195, Q235?
A3: Normally 3%-5%, but we can also produce the goods according to the customers' requests.
- Q: How are steel billets used in the manufacturing of shipbuilding components?
- Steel billets are used in the manufacturing of shipbuilding components as they serve as the raw material for forging, rolling, and shaping various structural parts of a ship, such as hull sections, bulkheads, and frames. These billets are heated and formed into desired shapes through processes like hot rolling, forging, or extrusion, ensuring the required strength, durability, and dimensional accuracy of the shipbuilding components.
- Q: What are the different types of welding processes used for joining steel billets?
- There are several different types of welding processes that can be used for joining steel billets. Each method has its own unique characteristics and advantages, depending on the specific requirements of the project. Here are some of the most commonly used welding processes for joining steel billets: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, SMAW uses a consumable electrode coated in flux to create an arc between the electrode and the base material. This process is versatile and can be used for both thick and thin steel billets, making it widely used in various industries. 2. Gas Metal Arc Welding (GMAW): Commonly known as MIG welding, GMAW uses a continuous wire electrode and a shielding gas to protect the weld from atmospheric contamination. This process offers high productivity and is suitable for welding steel billets of various thicknesses. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW uses a continuously fed tubular electrode filled with flux. This process is ideal for welding thicker steel billets and is often used in heavy fabrication applications. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG welding, GTAW uses a non-consumable tungsten electrode and a separate filler metal. This process produces high-quality welds and is commonly used for joining steel billets in applications that require precision and aesthetic appeal. 5. Submerged Arc Welding (SAW): SAW involves the use of a continuously fed electrode and a granular flux that covers the weld area. The process is particularly suitable for welding thick steel billets and is often used in the construction of pressure vessels and heavy machinery. 6. Laser Beam Welding (LBW): LBW utilizes a laser beam to generate heat and join the steel billets. This process offers high precision and speed, making it suitable for a wide range of applications, including automotive and aerospace industries. 7. Electron Beam Welding (EBW): EBW uses a high-velocity electron beam to melt and join the steel billets. This process provides deep penetration and precise control, making it ideal for critical applications that require high-quality welds. It is important to consider the specific requirements, thickness, and material properties of the steel billets when selecting the appropriate welding process. Consulting with a welding expert can help determine the most suitable method for a given project.
- Q: How are steel billets used in the manufacturing of oil and gas industry components?
- The oil and gas industry heavily relies on steel billets, which are a necessary raw material for manufacturing various components. These semi-finished steel products have a vital role in producing pipes, valves, fittings, and other necessary equipment for oil and gas extraction, transportation, and processing. One primary application of steel billets in the oil and gas industry is their use in producing seamless and welded pipes. These pipes are extensively used for transporting oil, gas, and fluids over long distances. To form seamless pipes, the billets undergo heating and then pass through a series of rollers. For welded pipes, the billets are initially shaped into a tube and then welded along the length to create a strong and durable pipe. In addition to pipes, steel billets are also used in manufacturing valves, which play a crucial role in controlling fluid flow within pipelines and equipment. The billets are machined and shaped to create valve bodies, which are then fitted with various internal components like seats, discs, and stems. These valves are designed to withstand high pressures and temperatures, ensuring reliable and safe operation in the oil and gas industry. Moreover, steel billets are utilized in producing fittings that connect and join pipes together. Elbows, tees, couplings, and flanges are manufactured from billets by machining and shaping them into the required dimensions and configurations. These fittings are critical for creating a dependable and leak-free pipeline system for oil and gas transportation. Apart from pipes, valves, and fittings, steel billets also have applications in manufacturing other equipment used in the oil and gas industry. This includes drill bits, pumps, compressors, and various structural components for offshore platforms and refineries. The strength, durability, and corrosion resistance of steel make it an ideal material for these demanding applications, and steel billets serve as the starting point for their production. In conclusion, steel billets are of utmost importance as a raw material for manufacturing components in the oil and gas industry. Whether it is pipes, valves, fittings, or other equipment, billets undergo various processes to create the essential components needed for oil and gas extraction, transportation, and processing.
- Q: What are the cost implications of using steel billets in manufacturing?
- Using steel billets in manufacturing can have several cost implications. First and foremost, the cost of steel billets themselves needs to be considered. The price of steel billets can vary depending on factors such as market demand, availability, and the grade of steel used. Therefore, fluctuations in steel prices can directly impact the cost of manufacturing. Additionally, the cost of transportation and logistics needs to be taken into account. Steel billets are heavy and bulky, requiring specialized handling and transportation methods. This can result in higher shipping costs, especially if the manufacturing facility is located far away from the source of steel billets. Furthermore, the cost of processing and shaping steel billets into the desired form for manufacturing needs to be considered. This includes expenses associated with cutting, welding, forging, and any other necessary fabrication processes. The complexity of these processes and the required machinery can have a significant impact on the overall cost of using steel billets. Another cost implication is related to the quality of steel billets. Inferior quality billets can lead to lower product quality and higher rejection rates, resulting in increased manufacturing costs. Therefore, it is important to source steel billets from reputable suppliers to ensure consistent quality and minimize the risk of defects. In terms of long-term costs, the durability and strength of steel make it an attractive choice for manufacturing. Steel is known for its longevity and resistance to wear and tear, reducing the need for frequent replacements and repairs. This can result in long-term cost savings for manufacturers. Lastly, it is essential to consider the environmental and sustainability aspects associated with using steel billets. Steel production is energy-intensive and can have a significant carbon footprint. Increasingly, manufacturers are being held accountable for their environmental impact, which can lead to additional costs in terms of compliance with regulations or implementing sustainable practices. In summary, the cost implications of using steel billets in manufacturing involve the price of the billets themselves, transportation costs, processing expenses, quality considerations, long-term durability, and sustainability factors. Careful analysis of these cost factors is crucial for manufacturers to make informed decisions and optimize their manufacturing processes.
- Q: What is the role of steel billets in the production of sheet metal?
- Steel billets play a crucial role in the production of sheet metal as they are the primary raw material used to create thin, flat sheets of metal. These billets are heated, rolled, and shaped through a series of processes to transform them into sheet metal. The quality and composition of the billets directly impact the strength, durability, and overall characteristics of the final sheet metal product.
- Q: What are the different joining methods used for steel billets?
- There are several different joining methods used for steel billets, depending on the specific application and desired outcome. Some of the most common joining methods include welding, brazing, and adhesive bonding. Welding is a widely used joining method for steel billets. It involves melting the edges of the billets and fusing them together, either with or without the use of a filler material. Welding can be done through various processes such as arc welding, resistance welding, or gas welding. It offers strong and durable joints, but the process can be complex and may require skilled operators. Brazing is another joining method used for steel billets. It involves heating the billets and melting a filler metal with a lower melting point, which is then allowed to flow between the joint surfaces and solidify. Brazing offers good strength and is often used for joining billets that are not easily weldable due to their composition or thickness. Adhesive bonding is a non-mechanical joining method that uses adhesives to bond the steel billets together. Adhesive bonding offers several advantages, including lightweight joints, uniform distribution of stress, and the ability to join dissimilar materials. It is also a versatile method that can accommodate various shapes and sizes of billets. However, adhesive bonding may not provide the same level of strength as welding or brazing, and it can be sensitive to environmental factors such as temperature and humidity. Other joining methods used for steel billets include mechanical fastening, such as bolting or riveting, and thermal joining methods like diffusion bonding or friction welding. Each joining method has its own advantages and limitations, and the choice of method depends on factors such as the specific application requirements, material properties, and cost considerations.
- Q: What are the main factors affecting the machinability of steel billets?
- The machinability of steel billets, which refers to the ease with which they can be cut and shaped by machining processes, is influenced by several key factors. These factors include the composition of the steel, its microstructure, the presence of impurities or inclusions, and the mechanical properties of the material. The composition of the steel plays a crucial role in determining its machinability. Elements such as carbon, manganese, sulfur, and phosphorus can significantly affect the cutting performance. For instance, higher carbon content can increase hardness, making the steel more difficult to machine. On the other hand, manganese can improve machinability by enhancing the formation of a favorable microstructure. The microstructure of the steel, which is influenced by factors such as heat treatment and alloying elements, also affects machinability. Fine-grained steels with a homogeneous microstructure are generally easier to machine than coarse-grained ones. Additionally, the presence of alloying elements like chromium or molybdenum can improve machinability by enhancing the material's hardness and wear resistance. Impurities or inclusions in the steel, such as non-metallic particles or oxides, can have a detrimental effect on machinability. These impurities can cause tool wear, surface defects, and poor chip formation during machining. Therefore, the level of impurities in the steel should be minimized through careful production and refining processes. Furthermore, the mechanical properties of the steel, including its hardness, strength, and ductility, influence machinability. High-strength steels are typically more challenging to machine due to their increased hardness, which requires more cutting force. Ductility is also crucial as it affects the ability of the steel to form chips during machining. A balance between hardness and ductility is desirable for optimal machinability. In conclusion, the machinability of steel billets is determined by various factors, including composition, microstructure, impurities, and mechanical properties. Understanding and controlling these factors is essential for ensuring efficient and effective machining processes.
- Q: What is the cost of steel billets?
- The cost of steel billets can vary depending on various factors such as the current market conditions, demand and supply dynamics, quality and specifications of the billets, and the location of purchase. Steel billet prices are typically quoted in metric tons or short tons. It is advisable to consult steel industry reports, market analysis, or reach out to steel suppliers or distributors for the most accurate and up-to-date pricing information.
- Q: How do steel billets contribute to the manufacturing of medical devices?
- Steel billets contribute to the manufacturing of medical devices in various ways. Firstly, steel billets serve as the raw material for the production of medical devices. These billets are used as a starting point in the manufacturing process, where they are heated and shaped into the desired form using techniques like forging, casting, or rolling. The use of steel billets in medical device manufacturing offers several advantages. Steel is known for its strength, durability, and corrosion resistance, making it an ideal material for the production of medical devices that need to withstand rigorous use and maintain their integrity over time. Additionally, steel offers excellent biocompatibility, meaning it is well-tolerated by the human body, reducing the risk of adverse reactions or complications when the medical devices are implanted or used in surgical procedures. Moreover, steel billets can be easily machined and formed into complex shapes, allowing manufacturers to create intricate medical devices such as orthopedic implants, surgical instruments, or prosthetic components. Steel's versatility and malleability enable the production of devices with precise dimensions and fine details, ensuring optimal functionality and performance. Furthermore, steel billets contribute to the manufacturing of medical devices by providing a cost-effective solution. Steel is widely available and relatively affordable compared to other materials used in the medical industry, making it an attractive choice for manufacturers. The ability to produce medical devices from steel billets at a reasonable cost contributes to the accessibility and affordability of healthcare worldwide. In conclusion, steel billets play a crucial role in the manufacturing of medical devices. They provide a strong, durable, and biocompatible material that can be easily shaped and machined into complex forms. Steel's properties contribute to the production of high-quality medical devices that are capable of withstanding demanding applications while ensuring patient safety and cost-effectiveness.
- Q: What are the main factors affecting the hardenability of stainless steel billets?
- The hardenability of stainless steel billets, which refers to the material's ability to be hardened through heat treatment, can be influenced by various factors. These factors include: 1. Alloy composition: The composition of stainless steel, especially the presence of carbon, chromium, nickel, and molybdenum, plays a crucial role in determining its hardenability. Higher carbon content generally improves hardenability, while elements like chromium and nickel enhance corrosion resistance but may decrease hardenability. 2. Grain size: The grain size of stainless steel billets affects the rate and depth of hardening. Finer grain structures typically exhibit better hardenability compared to coarser ones. This is because smaller grains allow for a more even distribution of carbon and alloying elements, resulting in improved hardening response. 3. Heat treatment conditions: The specific heat treatment process utilized, including heating and cooling rates, soaking time, and quenching media, has a significant impact on the hardenability of stainless steel billets. Proper control of these parameters is essential to achieve the desired hardness and mechanical properties. 4. Cooling rate: The rate at which the billets are cooled during the quenching process is a critical factor in determining their hardenability. Rapid quenching, such as water or oil quenching, promotes martensitic transformation and leads to greater hardness. Slower cooling rates, such as air cooling, result in a softer and less hardened structure. 5. Cross-sectional thickness: The thickness of the stainless steel billets also affects their hardenability. Thicker sections tend to have lower hardenability due to slower heat transfer rates during quenching. Conversely, thinner sections can achieve higher hardness levels due to faster cooling rates. 6. Prior microstructure: The initial microstructure of the stainless steel billets, whether they are in an annealed or cold-worked state, can influence hardenability. Cold work can introduce dislocations and grain boundaries, which may impede the diffusion of carbon and alloying elements during heat treatment, leading to reduced hardenability. Considering these factors, manufacturers and engineers must carefully select stainless steel grades and tailor the heat treatment process to achieve the desired level of hardenability and mechanical properties in stainless steel billets.
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Hot Rolled Mild Square Steel Billet Q195, Q235
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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