Spring Steel Strip

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
50MT m.t.
Supply Capability:
600000TONS/YEAR m.t./month
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Spring Steel:

Spring steel is divided into two types, one is alloy spring steel, and other one is carbon spring steel.

Alloy spring steel is a type that is used for manufacturing springs and other elastic parts. Spring steel should have high elastic limit and ratio of yield strength and tensile strength to make sure that the springs obtain enough power of elastic deformation and can bear much load.

Types of alloy spring steel: Si-Mn spring steel, Si-Cr spring steel, Cr-Mn Spring steel, Cr-V spring steel and so on.


Specification of Spring Steel Strip

-Material: 50CrVA

-Standard: GB/T 1222-2007

-Type: Spring Steel


Corresponding Steel Grade for Reference:












Chemical Composition:




















Mechanical Properties:

-Tensile Strength σb (MPa): ≥1274 (130)

-Yield Strength σs (MPa): ≥1127 (115)

-Elongation δ5 (%):≥10

-Percentage reduction of area: ψ (%): ≥40


1, Hot rolled, ≤321HB

2, Cold drawn + Heat treatment: ≤321HB

-Norm of heat treatment:

1, Quenching: 850℃±20℃.

2, Cooled by oil.

3, Tempering: 500℃±50℃.


Usage/Applications of Spring Steel Strip

-Mechanical Properties are good. 50CrVA have high hardenability. The element V reduces thermal sensitivity and improves the strength and toughness. The fatigue strength and yield point are high but the weld ability is bad.

-50CrVA is a nice material of spring. Usually it’s used as valve spring, piston spring and secure valve spring with big section that can bear much load. The working temperature is below 300


Packaging & Delivery of Spring Steel Strip:

-Packing Detail: The products will be well packed.


1, Tag marks. To show customers the specifications of products, company name and logo and other information required by customers.

2, Color marks. It’s easy for customers to distinguish them from other products at destination port.

-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.



-Theoretical weight/Actual weight.


-Terms of payment: T.T. or L/C at sight.


Photos of Spring Steel Strip:

Spring Steel Strip

Spring Steel Strip

There are several types of non-metallic inclusions that can be found in special steel. These inclusions are usually formed during the steelmaking process and can have a significant impact on the properties and performance of the steel. One common type of non-metallic inclusion is oxide inclusions. These inclusions are typically formed by the reaction of oxygen with elements present in the steel, such as silicon, manganese, and aluminum. Oxide inclusions can have a detrimental effect on the steel's mechanical properties, such as reducing its toughness and ductility. Another type of non-metallic inclusion is sulfide inclusions. These inclusions are formed by the reaction of sulfur with elements like manganese and iron. Sulfide inclusions can also have a negative impact on the steel's mechanical properties, as they can act as stress concentration sites and promote the initiation of cracks. Nitride inclusions are another type of non-metallic inclusion that can be found in special steel. These inclusions are formed by the reaction of nitrogen with elements like aluminum and titanium. Nitride inclusions can have a positive effect on the steel's properties, as they can improve its strength and hardness. Other types of non-metallic inclusions that can be present in special steel include carbide inclusions, which are formed by the reaction of carbon with elements like iron and chromium, and silicate inclusions, which are formed by the reaction of silica with elements like calcium and aluminum. Overall, the presence and characteristics of non-metallic inclusions in special steel can greatly influence its performance and suitability for specific applications. Therefore, it is important for steel manufacturers to carefully control and minimize the formation of these inclusions in order to produce high-quality steel with desired properties.
Special steel plays a crucial role in the aerospace defense machinery industry by providing exceptional strength, durability, and resistance to corrosion and high temperatures. It is used extensively in the manufacturing of various components such as landing gears, turbine blades, structural frames, and armor plating for military aircraft and defense systems. Its unique properties ensure optimal performance, safety, and reliability of these critical machines, enabling them to withstand challenging environments and extreme operating conditions.
Using special steel can provide several safety benefits in various applications. One of the main advantages is its enhanced strength and durability compared to traditional steel. Special steel is often designed to withstand extreme conditions, such as high temperatures or corrosive environments, making it ideal for applications in industries like aerospace, automotive, and oil and gas. The high strength of special steel allows for the construction of safer and more reliable structures. It can withstand heavy loads, reducing the risk of structural failures or collapses. This is crucial in industries where the safety of workers, equipment, and the general public is of utmost importance. Another safety benefit of special steel is its resistance to corrosion. Corrosion can weaken structures and compromise their safety. Special steel is often alloyed with elements like chromium, nickel, or molybdenum, which provide excellent corrosion resistance. This makes it suitable for applications in marine environments, chemical processing plants, or any setting where exposure to moisture or chemicals is a concern. Special steel is also known for its ability to retain its mechanical properties at high temperatures. This makes it an excellent choice for applications where heat resistance is crucial, such as in the construction of fire-resistant structures or in the manufacturing of industrial ovens and furnaces. By using special steel in these applications, the risk of structural failure or fire-related accidents can be significantly reduced. Furthermore, special steel can offer improved fatigue resistance, which is important in applications subject to cyclic loading or vibration. Fatigue failure can occur when a material experiences repeated stress over time, leading to cracks and eventual failure. Special steel can be engineered to have excellent fatigue properties, reducing the likelihood of unexpected failures and improving the overall safety of structures or equipment. In summary, the safety benefits of using special steel include enhanced strength, durability, corrosion resistance, heat resistance, and fatigue resistance. These properties make special steel a reliable choice for industries where safety is a top priority, ensuring the protection of workers, equipment, and the general public.
Yes, special steel can be heat treated. Heat treatment is a common process used to enhance the properties and performance of steel, including special steel. It involves heating the steel to a specific temperature and then cooling it rapidly or slowly to achieve desired characteristics such as increased hardness, improved strength, or better resistance to wear and corrosion.
Cobalt-based alloys are used in dental applications due to their unique properties such as high strength, corrosion resistance, and biocompatibility. They are commonly used in dental prosthesis, crowns, and bridges because they can withstand the harsh oral environment and provide long-term durability. Additionally, these alloys allow for precise and accurate fitting, ensuring optimal functionality and aesthetic appeal in dental restorations.
There are several methods that can be employed to improve the wear resistance of special steel. Firstly, heat treatment techniques such as quenching and tempering can be used. Quenching involves rapidly cooling the steel in a liquid medium, such as oil or water, to increase its hardness. This process forms a hardened surface layer that can resist wear. Tempering, on the other hand, involves reheating the quenched steel to a specific temperature and then cooling it slowly. This helps to reduce the brittleness caused by quenching and improve the steel's toughness, which is important for wear resistance. Another method is through alloying. Adding elements such as chromium, manganese, or vanadium to the steel can significantly enhance its wear resistance. These alloying elements form carbides, nitrides, or borides, which increase the hardness and improve the material's ability to resist wear and abrasion. Surface treatment techniques like carburizing or nitriding can also be employed. Carburizing involves introducing carbon into the steel's surface by heating it in a carbon-rich atmosphere. This forms a hardened surface layer with a high carbon content, making the steel more wear-resistant. Nitriding, on the other hand, involves diffusing nitrogen into the steel's surface, forming nitrides that increase hardness and wear resistance. Furthermore, physical vapor deposition (PVD) or chemical vapor deposition (CVD) coatings can be applied to the steel surface. PVD involves depositing a thin layer of wear-resistant material, such as titanium nitride or diamond-like carbon, onto the steel's surface using a vacuum process. CVD, on the other hand, involves depositing a wear-resistant coating by chemical reactions at elevated temperatures. These coatings provide an additional layer of protection against wear and friction. Lastly, the grain size of the steel can be controlled through processes like grain refinement or severe plastic deformation. Smaller grain sizes typically result in increased hardness and improved wear resistance. Overall, a combination of these methods can be used to enhance the wear resistance of special steel, depending on the specific application and desired properties.
Special steel is used in the production of conveyor belts to enhance their durability, strength, and overall performance. Conveyor belts are commonly used in industries such as mining, manufacturing, food processing, and logistics to transport materials and goods. These belts are subjected to various demanding conditions, including heavy loads, high temperatures, and abrasive materials. Special steel alloys, such as stainless steel or heat-resistant steel, are used in specific parts of the conveyor belt to ensure its longevity and reliability. For example, stainless steel is often used in the wire mesh belts to prevent corrosion and rust, especially when the conveyor belt is exposed to moisture or chemicals. This helps to maintain the smooth and efficient movement of materials without contamination. Furthermore, special steel is employed in the manufacturing of belt fasteners, hinges, and other connecting components. These parts need to withstand significant tension, heat, and wear, and standard steel may not provide the necessary strength and durability. Special steel alloys can offer superior strength, resistance to high temperatures, and improved wear resistance, ensuring that the conveyor belt can function reliably even under demanding conditions. Moreover, in some applications where the conveyor belt is exposed to extreme temperatures, such as in steel mills or foundries, special heat-resistant steel is used. This steel can withstand the intense heat without deforming or losing its strength. It allows the conveyor belt to continue operating safely and efficiently in such extreme environments. In summary, special steel is essential in the production of conveyor belts as it enhances their durability, strength, and ability to withstand demanding conditions. Its use in wire mesh belts, fasteners, hinges, and heat-resistant components ensures the longevity and reliability of conveyor belts in various industries.
Special steel, specifically designed and manufactured to possess exceptional properties and performance, undergoes a rigorous process to ensure its quality and conformity to established norms. To begin with, adherence to international standards in the production of special steel is achieved through the meticulous selection of raw materials. The composition and quality of these materials are carefully controlled and tested to meet the specifications outlined by international standards organizations. This guarantees that the resulting special steel is of the desired quality and possesses the necessary mechanical properties. In addition, standardized production processes are followed by special steel manufacturers. These processes are designed in accordance with international guidelines and standards to ensure consistency and traceability. Through the use of advanced technologies and quality control measures, manufacturers can monitor and control every stage of production, from melting and casting to rolling and heat treatment. This guarantees that the final product meets the required standards in terms of chemical composition, mechanical properties, and dimensional tolerances. Moreover, stringent testing and inspection procedures are conducted to validate the compliance of special steel with international standards. Certified laboratories and independent third-party agencies perform various destructive and non-destructive testing methods, such as ultrasonic testing, hardness testing, and microstructure analysis. These tests ensure unbiased and accurate results. Furthermore, special steel manufacturers often have their production processes and quality management systems audited and certified by recognized bodies, like ISO, to demonstrate their commitment to compliance with international standards. It is also important to note that special steel manufacturers actively participate in international standardization committees, such as ASTM International and ISO. By engaging in these committees, they contribute to the development and revision of international standards, ensuring that their products remain up to date and aligned with the latest industry requirements. In conclusion, special steel complies with international standards through careful raw material selection, adherence to standardized production processes, rigorous testing and inspection, and active participation in international standardization committees. By following these measures, special steel manufacturers demonstrate their dedication to producing high-quality products that meet the strict requirements of international standards.
Special steel is specifically designed to have excellent high-temperature oxidation resistance. It is able to withstand prolonged exposure to high temperatures without undergoing oxidation, ensuring its structural integrity and performance are maintained even in extreme conditions.
There are several factors that affect the corrosion resistance of special steel. These factors include the composition of the steel, the presence of alloying elements such as chromium or nickel, the surface finish, the pH and temperature of the environment, the presence of corrosive agents such as acids or salts, and the duration of exposure to corrosive conditions. Additionally, factors such as the design and construction of the structure using the special steel can also impact its corrosion resistance.
REDMETAL,a well-known enterprise specializing in the production and sales of spring steel and bearing steel. Since the establishment of our company, we have been aimed to provide the customers with qualify and cheap product and the satisfatory service.

1. Manufacturer Overview

Location Jiangsu, China
Year Established 1990
Annual Output Value Above US$ 20 Million
Main Markets Mid East; Eastern Europe; North America
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai
Export Percentage 20% - 30%
No.of Employees in Trade Department 21-50 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 100,000 square meters
No. of Production Lines 1
Contract Manufacturing OEM Service Offered;
Product Price Range High; Average

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