Spring Steel

Ref Price:
Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
100Tons m.t.
Supply Capability:
500Tons Per Day m.t./month
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Spring Steel can be divided into two types. One is carbon spring steel, and other one is alloy spring steel.

Alloy spring steel is based on carbon spring steel, by adding one or more alloying elements to improve the mechanical properties, hardenability and other properties to meet the requirement for manufacturing all kinds of spring steel.

 

Specification of Spring Steel:

-Material: 70Si2CrA

-Production: Hot rolled or cold rolled

-Standard: GB/T·5218-1999

-Type: Spring Steel

-Alloy or no: Alloy

 

Chemical Composition:

C

Mn

Si

Cr

0.65~0.75

0.40~0.60

1.40~1.70

0.20~0.40

S

P

Ni

≤0.030

≤0.030

≤0.030

 

Mechanical Properties:

-Annealing Condition:

1, Tensile Strength: σb/MPa≤835

2, Elongation: δ/%≥8

-Quencher condition:

1, Tensile strength: σb/MPa785~1175

2, Elongation: -

 

Usage/Applications of Spring Steel:

For manufacturing all kinds of flat spring or round spring with small sections, clockwork spring,

 

Packaging & Delivery of Spring Steel:

-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:

1, Delivery time: 30~45 working days after receive buyer’s T.T. or L/C.

2, Delivery status should be written in the contract. (Heat treatment or no)

 

Payment:

-Invoicing on theoretical weight or actual weight as 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. 100% payment before shipment.

2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L. 100% payment before shipment.

3, Negotiable.

 

Photos of Spring Steel:

Spring Steel

Spring Steel

Spring Steel

Q:
There are several methods available to prevent pitting corrosion in special steel. These techniques aim to protect the steel surface from the corrosive environment and inhibit the formation of pits. Some of the commonly used methods include: 1. Passivation: Passivation involves treating the steel surface with a chemical solution or coating to create a protective oxide layer. This layer acts as a barrier, preventing the penetration of corrosive agents and reducing the risk of pitting corrosion. 2. Alloying: By adding specific alloying elements to the steel composition, its resistance to corrosion can be improved. Elements such as chromium, nickel, and molybdenum are often used as they enhance the steel's ability to form a stable passive film and resist pitting corrosion. 3. Cathodic protection: This method involves using a sacrificial anode or applying an impressed current to the steel surface. By making the steel cathodic, it becomes less susceptible to corrosion as electrons are drawn away from it, preventing the formation of pits. 4. Coatings: Applying a protective coating to the steel surface can effectively prevent pitting corrosion. Coatings such as paint, epoxy, or polymer-based materials act as a physical barrier, shielding the steel from corrosive agents. 5. Environmental control: Controlling the environment surrounding the steel can also help prevent pitting corrosion. This includes measures such as regulating temperature, humidity, and pH levels to ensure they are within acceptable limits and inhibiting the corrosion process. 6. Regular maintenance: Regular inspection and maintenance of the steel surface are crucial for preventing pitting corrosion. Any signs of damage or deterioration should be addressed promptly to prevent further corrosion and potential pitting. It is important to note that the choice of prevention method depends on various factors such as the specific steel composition, the corrosive environment, and the intended application. Proper selection and implementation of these methods can significantly enhance the resistance of special steel to pitting corrosion, ensuring its longevity and performance.
Q:
Mold steel is used in injection molding as it possesses high toughness, wear resistance, and heat resistance properties. It is used to manufacture molds or dies that are used in injection molding machines to shape molten plastic into desired products. The mold steel is capable of withstanding the high pressure and temperature of the molten plastic, ensuring the production of precise and high-quality plastic components.
Q:
Special steel is machined using various methods and techniques, depending on the specific requirements and properties of the steel. One common method is turning, where a cutting tool is used to remove material from the rotating steel workpiece. This process is used to shape the steel and create cylindrical parts such as shafts or rods. Another method is milling, which involves using rotating multi-point cutting tools to remove material from the steel workpiece. This process is used to create flat surfaces, slots, or complex shapes on the steel. Grinding is also commonly used to machine special steel. It involves using abrasive wheels to remove material and create a smooth surface finish. This method is often used for precision machining, where tight tolerances and smooth finishes are required. Drilling is another important machining process for special steel. It involves using a rotating drill bit to create holes in the steel workpiece. This process can be done manually or using CNC (Computer Numerical Control) machines for precise and accurate hole placement. In addition to these methods, special steel can also be machined using other techniques such as broaching, honing, or lapping, depending on the specific requirements and desired outcome. It is important to note that machining special steel requires specialized tools, equipment, and expertise due to the material's hardness and unique properties. The cutting tools used for machining special steel are often made from high-speed steel or carbide, which can withstand the high temperatures and pressures generated during the machining process. Overall, machining special steel involves a combination of cutting, grinding, and drilling techniques to shape, refine, and finish the steel workpiece according to the desired specifications and requirements.
Q:
Special steel is characterized by a variety of properties that set it apart from regular steel. Some of its key properties include high strength, excellent corrosion resistance, superior heat resistance, exceptional toughness, and good wear resistance. Additionally, special steel can be easily machined, welded, and formed, making it highly versatile for various industrial applications.
Q:
Special steel performs well in magnetic applications due to its high magnetic permeability and low electrical conductivity. This allows it to efficiently conduct and concentrate magnetic fields, making it ideal for various magnetic devices and applications such as transformers, motors, generators, and magnetic sensors. Additionally, special steel can exhibit excellent magnetic properties such as high saturation magnetization and low coercivity, making it capable of generating strong magnetic fields and maintaining magnetization even in challenging conditions.
Q:
Free-cutting steel is a type of steel that is specifically designed to enhance machinability, making it easier to cut and shape with minimal effort. It possesses certain properties such as high sulfur content, which promotes the formation of manganese sulfide inclusions, improving chip formation during machining. It also typically contains elements like phosphorus, lead, or bismuth, which act as lubricants and reduce friction during cutting operations. Additionally, free-cutting steel has excellent surface finish, good dimensional accuracy, and high production efficiency, making it widely used in industries where machining speed and efficiency are crucial.
Q:
Special steel, also known as alloy steel, has several unique properties and characteristics. Firstly, it possesses exceptional strength, making it highly resistant to deformation and wear. This strength is often achieved through the addition of various elements such as chromium, nickel, and molybdenum, which enhance its toughness and hardness. Additionally, special steel exhibits excellent corrosion resistance, allowing it to withstand harsh environments without succumbing to rust or degradation. It also demonstrates good heat resistance, making it suitable for applications involving high temperatures. Moreover, special steel can be easily machined and welded, offering versatility in manufacturing processes. Overall, the properties and characteristics of special steel make it a preferred material for a wide range of industries, including aerospace, automotive, and construction.
Q:
Special steel performs well in welding applications due to its high strength, excellent heat resistance, and superior weldability. Its unique composition and alloying elements allow for precise control of the welding process, resulting in high-quality, durable welds. Additionally, special steel's ability to resist cracking and deformation during welding ensures reliable performance and structural integrity in various applications.
Q:
Yes, special steel can be used for making chemical processing equipment. Special steel, such as stainless steel or corrosion-resistant alloys, are commonly used in the construction of chemical processing equipment due to their excellent resistance to corrosion, high temperature and pressure, and ability to withstand harsh chemical environments.
Q:
Special steel contributes to infrastructure development in several ways. Firstly, special steel possesses high strength and durability properties, making it an ideal material for constructing bridges, buildings, and various infrastructure projects. Its strength allows for the creation of lighter and more efficient structures, reducing construction costs and increasing project lifespan. Additionally, special steel is corrosion-resistant, ensuring the longevity and reliability of infrastructure in harsh environments. Moreover, special steel is used in the production of construction equipment and machinery, enabling efficient and effective construction processes. Overall, special steel plays a crucial role in enhancing the safety, resilience, and sustainability of infrastructure development.
ORIGIN,a well-known enterprise specializing in the production and sales of Spring steel and aluminum powder.

1. Manufacturer Overview

Location Jiangsu, China
Year Established 2003
Annual Output Value Above US$ 30 Million
Main Markets Asia-Pacific; Middle east
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai.
Export Percentage 20% - 30%
No.of Employees in Trade Department 10-20 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: Above 100,000 square meters
No. of Production Lines 2
Contract Manufacturing OEM Service Offered;
Product Price Range Average

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