HR Q235 Hot Rolled Steel Plates Alloy Steel Sheets
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
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Specification
Type:
Carbon Steel
Shape:
Steel Round Bar
HR Q235 Hot Rolled Steel Plate High Alloy Steel Sheet
Product Description:
1.Q235 hot rolled steel plate and sheet with high strength
2. Thickness:8mm-250mm, width:1500mm-2250mm
3.ISO and BV certificate
4.Standard:GB/T 3274-2007,JIS G3106,DIN17100, ASTM, BS4360
5.Delivery condition: According to the requirements of customers, the carbon steel mild steel plate and sheet could be hot rolled, cold rolled, normalized, annealed, tempered, normalized+ tempered and tempering.
6.Application:The low alloy steel plate and sheet with high strength is mainly used in making Plants, general constructions, different kinds of engineering machines such as electric wheels skip, mine car, excavator, loaders, bulldozers, industrial blower, various cranes used in mines and other structures.
Specification:
Material | Q235 | Round bar | Dia(mm) | 16-600 |
Process | EAF + LF + VD + Forged + Heat Treatment (optional) | Length (mm) | Max 12000 | |
Heat treatment | Normalized / Annealed / Quenched / tempered | Flat bar | Thickness(mm) | 8-500 |
Delivery condition | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) | Width(mm) | 70-200 | |
Test | Ultrasonic test according to SEP 1921-84 D/d | Length (mm) | Max 12000 |
Chemical Composition:
C | Si | Mn | Cr | Ni | Cu |
0.5~0.8 | 0.17~0.37 | 0.25~1.2 | ≤0.25 | ≤0.30 | ≤0.25 |
Packing and Delivery:
Packing in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: Approx.45 days
Usage and Applications:
1.Q235 Hot Rolled Steel Plate High Alloy Steel Sheet is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Some especial material steel round bar can be used for main shaft of steamer, hummer shank, with big section and supper force.
Product Show:
- Q:What are the machining techniques for special steel?
- Some of the machining techniques commonly used for special steel include milling, turning, drilling, grinding, and broaching. These techniques are employed to shape and finish the special steel material according to the desired specifications and requirements. Additionally, special attention is given to selecting appropriate cutting tools, speeds, and feeds to ensure efficient and precise machining.
- Q:How is special steel used in the aerospace sector?
- The aerospace sector heavily relies on special steel due to its distinctive properties, which make it suitable for various applications. One primary application in the aerospace industry involves using special steel to manufacture aircraft engine components. Turbine blades, shafts, and casings, which are exposed to extreme temperatures, pressures, and stresses, benefit from special steel's exceptional heat resistance, high strength, and superior mechanical properties. These qualities enable the engine parts to endure harsh conditions, ensuring optimal performance and safety. Special steel is also used in constructing aircraft structures like wings, fuselage, landing gears, and critical components. These structures must be lightweight yet strong enough to withstand flight forces. Special steel alloys, particularly stainless steel, strike a balance by providing excellent strength-to-weight ratios and corrosion resistance. Furthermore, aerospace fasteners, including bolts, nuts, and screws, rely on special steel's exceptional strength and durability to maintain the aircraft's structural integrity. Titanium alloys, known for their lightweight nature, high strength, and corrosion resistance, are frequently employed for this purpose. Additionally, special steel finds application in aerospace tooling and equipment production. Molds, dies, jigs, and fixtures used during manufacturing processes require materials that are robust, wear-resistant, and capable of withstanding high temperatures and pressures. Special steel, with its outstanding hardness, toughness, and heat resistance, proves to be ideal for these applications. In conclusion, special steel is indispensable in the aerospace sector as it provides the necessary properties for aircraft engine components, structures, fasteners, and tooling. Its unique characteristics, including high strength, heat resistance, lightweight, and corrosion resistance, contribute to the production of reliable and high-performance aerospace systems.
- Q:What are the different types of welding techniques used for special steel?
- Special steel can be welded using various techniques depending on its specific requirements and properties. Some commonly used techniques for welding special steel include: 1. Stick welding, also known as Shielded Metal Arc Welding (SMAW), involves using a consumable electrode coated in flux to create an electric arc between the electrode and the base metal. This technique is ideal for thicker sections of special steel due to its ability to generate high heat and deep penetration. 2. Gas Metal Arc Welding (GMAW), also known as MIG welding, utilizes a continuously fed wire electrode and a shielding gas to protect the weld from atmospheric contamination. Its versatility and ability to produce high-quality welds with good control make it widely used for special steel. 3. Gas Tungsten Arc Welding (GTAW), also known as TIG welding, employs a non-consumable tungsten electrode and a shielding gas to create an electric arc. This technique is often preferred for special steel alloys that require precise control over the welding process and where weld quality and appearance are crucial. 4. Flux-Cored Arc Welding (FCAW), similar to GMAW, employs a continuously fed tubular electrode filled with flux. This technique is commonly used for special steel applications that necessitate high deposition rates and deep penetration, such as heavy fabrication or structural welding. 5. Submerged Arc Welding (SAW) involves creating an arc between a continuously fed bare electrode and the workpiece, while a layer of granular flux covers the arc. This technique is typically used for heavy-duty applications and thick materials, providing excellent weld quality and high deposition rates. 6. Laser Beam Welding (LBW) utilizes a highly focused laser beam to melt and join special steel parts. It offers precise control, high welding speeds, and minimal distortion, making it suitable for specialized applications that require high precision and minimal heat-affected zones. It is crucial to consider factors such as material composition, thickness, joint configuration, and desired weld properties when selecting the appropriate welding technique for special steel. Expertise and knowledge are essential to determine the best technique for a specific application, ensuring optimal results in terms of weld quality, strength, and durability.
- Q:What are the different surface treatments for special steel?
- For special steel, there exist various surface treatments that serve distinct purposes and offer unique benefits. Some commonly employed surface treatments include: 1. Galvanization, which entails coating the steel with a layer of zinc, providing exceptional corrosion resistance. Galvanization proves popular for outdoor applications exposed to moisture and harsh environmental conditions. 2. Powder coating, involving the application of a dry powder to the steel surface, which is then heated and cured to form a durable and protective coating. This treatment offers excellent resistance against corrosion, chemicals, and UV rays, making it ideal for automotive parts, appliances, and outdoor furniture. 3. Nitriding, a surface hardening treatment that diffuses nitrogen into the steel surface. Nitriding significantly enhances surface hardness, wear resistance, and fatigue strength. It finds common use in high-performance components like gears, crankshafts, and injection molding screws. 4. Electroplating, where a layer of metal such as chromium, nickel, or gold is deposited onto the steel surface through an electrochemical process. This treatment improves appearance, corrosion resistance, and wear resistance. Electroplating is often employed for decorative purposes or to enhance component performance in various industries. 5. Passivation, a chemical treatment that eliminates iron contaminants from the steel surface, creating a passive oxide layer. This layer acts as a barrier against corrosion, enhancing resistance to rust and other forms of degradation. Passivation is commonly used for stainless steel components in industries like food processing, pharmaceuticals, and medical devices. 6. Carbonitriding, a surface treatment that introduces carbon and nitrogen into the steel surface at high temperatures. This process forms a hardened case, improving wear resistance and fatigue strength. Carbonitriding finds frequent application in high-stress components such as gears, crankshafts, and camshafts. These examples represent just a fraction of the available surface treatments for special steel. The choice of treatment depends on factors like desired properties, application requirements, and budget constraints. Consulting experts or manufacturers is crucial for determining the most suitable surface treatment for specific steel applications.
- Q:What are the applications of special steel in the medical field?
- Special steel has various applications in the medical field due to its unique properties and characteristics. One of the primary applications of special steel in the medical field is in the manufacturing of surgical instruments. Special steel, such as stainless steel, is widely used to produce sharp, durable, and corrosion-resistant surgical instruments like scalpels, forceps, scissors, and surgical needles. These instruments need to be strong enough to withstand repeated use and sterilization without losing their sharpness or integrity, and special steel provides the necessary strength and durability. Another important application of special steel in the medical field is in the production of implants and prosthetics. Special steel alloys, including titanium alloys, cobalt-chromium alloys, and nickel-titanium alloys, are commonly used to manufacture orthopedic implants, dental implants, and various other medical devices. These alloys offer excellent biocompatibility, corrosion resistance, and mechanical strength, making them ideal for long-term implantation in the human body. Additionally, special steel is used in the construction of medical equipment and machinery. Diagnostic machines like MRI scanners and X-ray machines often utilize special steel components due to their magnetic properties and ability to withstand high temperatures. The use of special steel in medical equipment ensures the accuracy, reliability, and safety of these devices. Furthermore, special steel is employed in the manufacturing of medical storage and transportation systems. Steel cabinets, trolleys, and containers are commonly used to store and transport medical supplies, instruments, and samples. Special steel ensures the durability and hygiene of these storage systems, as it is easy to clean, resistant to contamination, and has a long lifespan. In conclusion, the applications of special steel in the medical field are extensive and diverse. From surgical instruments to implants, medical equipment to storage systems, special steel plays a vital role in ensuring the effectiveness, reliability, and safety of medical procedures and treatments. Its unique properties make it an indispensable material in the healthcare industry.
- Q:How does the availability of raw materials affect the production of special steel?
- The availability of raw materials plays a crucial role in the production of special steel. Special steel is a high-quality alloy that is used in various industries such as automotive, aerospace, and energy. It is known for its exceptional strength, durability, and resistance to corrosion, making it a preferred choice for critical applications. The availability of raw materials, such as iron ore, coal, and alloying elements like chromium, nickel, and molybdenum, directly affects the production of special steel. These raw materials are essential for the composition and properties of the steel, and any disruptions in their supply can significantly impact the production process. If the availability of iron ore, which is the primary source of iron, is limited or becomes costly, it can lead to a scarcity of the main ingredient for steel production. This can cause a decrease in the production of special steel, resulting in higher prices and potential shortages in the market. Similarly, the availability and cost of alloying elements are critical factors. Alloying elements enhance the properties of steel, making it suitable for specific applications. For example, chromium increases the steel's resistance to corrosion, while molybdenum improves its strength at high temperatures. If these alloying elements are not readily available, it may affect the ability to produce special steel with the desired properties. Furthermore, the availability of energy resources, such as coal or natural gas, is also important for the production of special steel. These resources are used in the steelmaking process, specifically in the production of coke, which is essential for the smelting of iron ore. Limited availability or increased prices of energy resources can impact the cost and efficiency of steel production. In conclusion, the availability of raw materials is a critical factor in the production of special steel. Any disruptions or limitations in the supply of raw materials, including iron ore, alloying elements, and energy resources, can have a significant impact on the production process, leading to higher prices, potential shortages, and compromised properties of the final product. Therefore, ensuring a stable and sufficient supply of raw materials is essential for the production of high-quality special steel.
- Q:How does stainless steel contribute to the production of medical implants?
- Stainless steel contributes to the production of medical implants by providing a highly durable and corrosion-resistant material that is compatible with the human body. It is used in various implants such as joint replacements, dental implants, and surgical instruments due to its strength, biocompatibility, and ability to withstand sterilization processes.
- Q:What are the unique properties of stainless steel?
- Stainless steel possesses several unique properties that set it apart from other metals. Firstly, it is highly corrosion resistant, making it ideal for applications in environments with high moisture or chemical exposure. Secondly, stainless steel has excellent strength and durability, allowing it to withstand extreme temperatures and heavy loads. Additionally, it is hygienic and easy to clean, making it popular in industries such as food processing and medical equipment. Lastly, stainless steel is aesthetically pleasing, with a shiny and polished appearance that can be maintained over time.
- Q:What are the cutting tools used for machining special steel?
- The cutting tools commonly used for machining special steel include carbide inserts, high-speed steel (HSS) drills, end mills, and broaches. These tools are specifically designed to withstand the high temperatures and hardness of special steels, ensuring precise and efficient cutting operations.
- Q:How is case-hardening steel used in the production of gears and shafts?
- Case-hardening steel is used in the production of gears and shafts to provide them with a hard outer layer, while maintaining a tough and durable core. The steel is heated and then subjected to a process known as carburizing, where it comes into contact with carbon-rich materials to absorb carbon into its surface. This process creates a high carbon concentration at the outer layer, resulting in increased hardness and wear resistance. The case-hardened gears and shafts offer superior durability, allowing them to withstand heavy loads and friction in various applications.
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HR Q235 Hot Rolled Steel Plates Alloy Steel Sheets
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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