High grade spring steel wire
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Spring steel is due in the quenched and tempered condition of elastic,specially used in the manufacture of spring and spring steel. Resiliencedepends on the deformation of steel in the elasticity, that is within the scope of the regulations, the elastic deformation of the ability to bear a certain load, theload permanent deformation after removal does not appear. Spring steelshould possess excellent comprehensive properties, such as mechanical properties (especially the elastic limit, ultimate strength, yield ratio), sag resistance performance (i.e., anti sagging performance, also known as the anti relaxation property), fatigue performance, hardenability, physical and chemical properties of heat resistance, low temperature resistance, (oxidation, corrosion resistance etc.). In order to meet the performance requirements, spring steel has excellent metallurgical quality (high purity and uniformity), good surface quality (strict control of surface defects and decarburization), shape and sizeprecision.
According to GB/T 13304 "steel classification" standard, according to the basicproperties and use characteristics of spring steel, belonging to the mechanical structure with steel; according to the quality grade, which belongs to thespecial quality steel, which need to be especially strict quality control and performance of the steel in the production process. According to the Chinahabits, spring steel belongs to special steel, spring steel when makingtechnical requirements are relatively high, excellent technology directly determine the level of quality.
Classification
Classified according to chemical composition
According to the GB/T 13304 standard, spring steel for non alloy spring steelin accordance with its chemical composition (carbon spring steel) and alloy spring steel. Carbon spring steel
The carbon content of carbon spring steel (mass fraction) in general 0.62%~0.90%. According to the content of manganese is divided into generalmanganese content (mass fraction) (0.50%~0.80%) such as 65, 70, 85 andhigher manganese content (mass fraction) (0.90~1.20%), such as the 65Mnclass two.
Alloy spring steel
Alloy spring steel in carbon steel on the basis of appropriate, by adding one orseveral kinds of alloy elements to improve the mechanical properties ofhardened steel, permeability and other properties, the desired performance in order to meet the manufacturing all kinds of spring steel.
Alloy spring steel basic composition series, Si Mn spring steel, spring steel,silicon chromium chromium manganese spring steel, chrome vanadium springsteel, tungsten chromium vanadium spring steel etc.. Based on these series,with molybdenum, vanadium and boron alloy elements such as some brandsand join in order to improve the performance of some of its aspects.
In addition, also from other steel types, such as high quality carbon structuralsteel, carbon tool steel, high-speed tool steel, stainless steel, the choice of some grades of steel used as spring.
Classification according to the production processing method
The hot rolling (forging) steel hot rolling round steel, including Fang Gang, flat steel, steel plate, forging round steel, Fang Gang.
The cold drawing (rolling) steel wire, cold drawn steel strip, including material(cold drawn steel).
In accordance with the steel delivery status classification
The hot rolling (forging) steel
A. rolled (forging) delivery of steel after hot forming is made of spring, and then quenching and tempering treatment.
B. in annealing state of delivery by the cold formed steel spring, thenquenching and tempering treatment.
All the above should comply with the relevant state provisions of deliveryhardness.
The cold drawing (rolling) steel
A. steel wire
The lead bath isothermal quenching cold drawn steel wire (also called sendDeng de cold drawing steel wire spring) made only after low temperaturetempering, to eliminate stress.
The oil quenching and tempering steel cold drawn into required size,continuous heating, continuous oil quenching and tempering of lead. Springsteel wire made only for the bottom temperature of fire, in order to eliminate stress.
The cold drawn steel wire (i.e. without quenching and tempering steel)
A. to cold state of delivery.
B. with annealing, normalizing or tempering treatment delivery.
The above two kinds of delivery wire springs are needed after quenching and tempering treatment.
B. steel strip
The cold state of delivery is made of spring after low temperature tempering, to eliminate stress.
The quenched and tempered condition required delivery is made of springafter low temperature tempering, to eliminate stress.
The back fire delivery is made of spring after quenching and temperingtreatment needs
C. cold drawn steel
In the annealed state delivery after cold forming steel is made of spring, and then quenching and tempering treatment.
The other classification method
In addition to the above, there are a number of other classification methods,for example:
According to the conditions of delivery requirements can be divided according to the chemical composition (mechanical properties) delivery and press thehardenability of delivery.
According to the spring working conditions can be divided into static loadspring steel, subjected to impact load spring steel and high (low) temperaturespring and corrosion resistance of spring steel etc..
2 process performance
Edit
Spring in use shock and vibration or prolonged stress, so the requirements ofhigh tensile strength, high elastic limit, the fatigue strength of the spring steel.In the technology requirements of spring steel has certain hardenability, not easy removal, good surface quality carbon spring steel is carbon content of WC in the 0.6%-0.9% range of high-quality carbon structural steel. Alloy springsteel is mainly the Si Mn steel, their carbon content was slightly lower, mainly by increasing the silicon content of Wsi to improve performance; in addition toLuo, tungsten, vanadium alloy steel spring. In recent years, with ChinaResources, and according to the automobile, tractor design requirements of new technologies, develop new steel added boron, niobium, molybdenum and other elements in the Si Mn steel on the basis of the spring is extended service life, improve the quality of the spring.
Performance requirements
Spring in use shock and vibration or prolonged stress, so the requirements ofhigh tensile strength, high elastic limit, the fatigue strength of the spring steel.In the technology requirements of spring steel has certain hardenability, not easy removal, good surface quality carbon spring steel is carbon content of WC in the 0.6%-0.9% range of high-quality carbon structural steel. Alloy springsteel is mainly of Si Mn steel
- Q:How is corrosion-resistant steel used in marine environments?
- Corrosion-resistant steel, also known as stainless steel, is extensively used in marine environments due to its ability to withstand the adverse effects of corrosion caused by saltwater exposure. It is commonly utilized in the construction of various marine components, such as hulls, propellers, and equipment, to ensure durability and longevity. The steel's corrosion resistance properties help protect against rust and degradation, ultimately enhancing the structural integrity and performance of marine vessels and infrastructure in harsh saltwater conditions.
- Q:What are the different forms in which special steel is available?
- Special steel is available in various forms such as bars, plates, sheets, tubes, wires, and forgings.
- Q:Can special steel be coated or plated?
- Yes, special steel can be coated or plated. Coatings or platings are often applied to special steel to enhance its corrosion resistance, improve its appearance, or provide additional properties such as increased hardness or lubricity. These coatings can be achieved using various methods such as electroplating, hot-dip galvanizing, powder coating, or physical vapor deposition.
- Q:How is special steel protected against corrosion?
- Special steel is protected against corrosion through a variety of methods, including the application of protective coatings such as zinc or epoxy, the use of corrosion-resistant alloys in the steel composition, and the implementation of cathodic protection systems that involve the use of sacrificial anodes or impressed current to prevent rusting.
- Q:How does special steel contribute to the defense aerospace industry?
- Special steel contributes to the defense aerospace industry by providing high-strength, lightweight, and corrosion-resistant materials for the construction of critical components such as aircraft frames, landing gear, and engine parts. These steels are specifically designed to withstand extreme conditions, including high temperatures and pressures, ensuring the safety and reliability of military aircraft. Additionally, special steel's superior mechanical properties enhance fuel efficiency, increase payload capacity, and improve overall performance, making it an essential material in the defense aerospace sector.
- Q:What industries use special steel?
- Special steel plays a vital role in multiple industries, relying on its unique properties to carry out their operations. The automotive industry, for instance, utilizes special steel extensively in manufacturing engine parts, transmission systems, and chassis components. The exceptional strength, durability, and corrosion resistance of special steel make it an ideal choice for withstanding the challenging conditions faced by automotive components. Similarly, the aerospace industry heavily relies on special steel in constructing aircraft structures, engine components, and landing gear systems. The lightweight yet robust characteristics of special steel are crucial in ensuring the safety and performance of aircraft. In the energy sector, special steel is essential for producing equipment used in oil and gas exploration, such as drilling rigs, pipelines, and offshore platforms. The high-strength and corrosion-resistant properties of special steel enable it to withstand the harsh operating conditions prevalent in this industry. The construction industry is also a significant consumer of special steel, using it in the manufacturing of structural components, reinforcing bars, and precast concrete products. Special steel provides the necessary strength and durability required for building structures capable of withstanding diverse environmental conditions and heavy loads. Moreover, the manufacturing and machinery industry relies on special steel for producing heavy machinery, industrial equipment, and machine tools. The exceptional strength, wear resistance, and heat resistance properties of special steel make it well-suited to meet the demanding requirements of these applications. Lastly, the defense and military industry heavily depends on special steel for producing military vehicles, weapons, and armor. Special steel's ability to withstand extreme conditions and provide protection makes it a critical material in this industry. Overall, special steel's exceptional properties of strength, durability, corrosion resistance, and heat resistance make it indispensable across various industries. Its applications span from automotive and aerospace to energy, construction, manufacturing, and defense sectors, where reliability and performance are of paramount importance.
- Q:Can special steel be used for making oil and gas industry components?
- Yes, special steel can be used for making oil and gas industry components. Special steels, such as stainless steel and alloy steel, are often preferred in the oil and gas industry due to their exceptional mechanical properties, corrosion resistance, and high temperature resistance. These components are exposed to harsh operating conditions, including corrosive environments, extreme temperatures, and high pressures. Special steels are specifically designed to withstand these conditions and maintain their integrity and performance over time. The use of special steels in the oil and gas industry ensures the reliability, durability, and safety of critical components, such as valves, pipes, fittings, and drilling equipment.
- Q:How does special steel contribute to the manufacturing of automotive engine components?
- The manufacturing of automotive engine components heavily relies on special steel to enhance their strength, durability, and performance. Special steel possesses unique properties that make it suitable for critical engine parts like crankshafts, camshafts, connecting rods, valve springs, and cylinder heads. The exceptional strength of special steel is one of its primary advantages in automotive engine components. Engine parts made from special steel can withstand high stress, heavy loads, and extreme temperatures without experiencing deformation or failure. This strength ensures that the engine operates efficiently and reliably, even under demanding conditions. Furthermore, special steel offers superior durability, which is crucial for the longevity and performance of engine components. Its resistance to wear, corrosion, and fatigue ensures that the engine parts maintain their functionality for an extended period. This durability translates into increased lifespan and reduced maintenance requirements for the engine, resulting in higher customer satisfaction and lower costs for vehicle owners. The use of special steel in automotive engine components also contributes to improved performance. Special steel allows for the creation of lightweight components, reducing the overall weight of the engine and enhancing fuel efficiency. Additionally, the high precision and dimensional accuracy achievable with special steel manufacturing processes result in better engine performance, reduced friction, and improved power output. Moreover, special steel exhibits excellent machinability, simplifying the manufacturing process of engine components. Its ability to be easily formed, cut, and shaped enables the production of complex designs and intricate features, leading to enhanced efficiency and performance in the final product. In conclusion, special steel plays a vital role in the manufacturing of automotive engine components due to its exceptional strength, durability, and performance. Its usage results in engines that are more reliable, efficient, and long-lasting, ultimately contributing to the overall quality and satisfaction of vehicles.
- Q:How does special steel contribute to sustainability?
- Special steel contributes to sustainability in several ways. Firstly, it is highly durable and has a longer lifespan compared to traditional steel, reducing the need for frequent replacements and minimizing waste. Additionally, special steel can be recycled and reused multiple times without losing its properties, reducing the demand for new raw materials and energy consumption in the production process. Furthermore, special steel offers superior strength and lightweight characteristics, enabling the development of more fuel-efficient vehicles and structures, thus reducing carbon emissions. Overall, special steel's durability, recyclability, and energy efficiency make it a key material in promoting sustainable practices in various industries.
- Q:Can special steel be welded?
- Yes, special steel can be welded. However, the specific welding process and techniques may vary depending on the type of special steel being used. It is important to have a good understanding of the particular steel's composition and properties to ensure proper welding procedures are followed.
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High grade spring steel wire
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
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