Round Spring Steel

Ref Price:
Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
50Tons m.t.
Supply Capability:
600000TONS/YEAR 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 manufacture all kinds of spring steel.


Specification of Round Spring Steel:

-Material: 1065

-Standard: ASTM

-Production: Hot rolled or cold rolled

-Type: Spring Steel


Corresponding Steel Grade for Reference:









Type SC

     Type DC






Chemical Composition:


















Mechanical Properties:

-Tensile Strength σb (MPa): ≥695

-Yield Strength σs (MPa): ≥410

-Elongation δ10(%): ≥10

-Percentage reduction of area: ψ (%): ≥30

-Hardness HBS, no heat treatment: ≤255


Usage/Applications of Round Spring Steel:

-ASTM1065, is medium-high carbon spring steel. After heat treatment, this type of steel obtains high strength, hardness and elasticity but this material isn’t perfect for welding.

-Its fatigue strength is equal to alloy spring steel when they are in same configuration.

-For manufacturing spring, spring circle, all kinds of grommet, clutch, and axels in the production of normal machine.


Packaging & Delivery of Round Spring Steel:

-Packing Detail: The products can be packed in bundles by steel wires.

-Marks: There are two types of marks. One is color mark and other one is tag mark. We paint color marks on both ends of bundles to make sure that it’s more convenient for customers to distinguish their products from other products at the destination port. The tag marks will be tied up to each bundle to make sure that customers know the specifications of each bundle like product’s name and size and other information of products.

-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)



1, 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.

2, The maximum quantity of loading of container is 25 tons.

3, The products are usually transported to the nearest port from the production place.


Photos of Round Spring Steel:

Round Spring Steel

Round Spring Steel

Quenching is a critical step in the heat treatment process of special steel, as it helps to achieve the desired mechanical properties and improve the material's hardness and strength. There are several methods for quenching special steel, each with its own advantages and considerations. 1. Oil Quenching: This is one of the most commonly used methods for quenching special steel. The steel component is immersed in oil, which acts as a cooling medium. Oil quenching provides a moderate rate of cooling, allowing for controlled and uniform hardening. It is suitable for a wide range of steel grades and can prevent cracking or distortion. 2. Water Quenching: Water quenching is a faster cooling method compared to oil quenching. It provides rapid heat extraction, resulting in higher hardness and strength. However, the high cooling rate can also lead to increased risk of cracking or distortion, especially with thicker sections. Water quenching is commonly used for low-alloy steels and some high-alloy steels. 3. Polymer Quenching: Polymer quenching involves using a specialized polymer solution as the cooling medium. This method provides a controlled cooling rate, offering a balance between the slower oil quenching and faster water quenching. Polymer quenching can be particularly suitable for steels with complex shapes or critical dimensions, as it reduces the risk of distortion and cracking. 4. Air Quenching: Air quenching is a slower cooling method that involves allowing the steel component to cool in ambient air. It is typically used for steels with lower hardenability, as it provides a more gradual cooling rate. Air quenching can help to reduce the risk of distortion and cracking, but it may result in lower hardness and strength compared to other quenching methods. 5. Salt Bath Quenching: Salt bath quenching involves immersing the steel component in a molten salt bath as the cooling medium. This method provides a controlled and uniform cooling rate, reducing the risk of distortion and cracking. Salt bath quenching is particularly suitable for complex-shaped or delicate parts, as it minimizes the thermal stress during cooling. It is important to note that the choice of quenching method depends on various factors, such as the steel grade, desired hardness, component size and shape, and the required mechanical properties. Proper selection and implementation of the quenching method are crucial to achieving the desired material characteristics and ensuring the overall quality of the special steel product.
There are several methods of surface protection for special steel, including galvanizing, painting, powder coating, electroplating, and hot-dip coating. Each method offers different advantages and is suitable for various applications based on factors such as corrosion resistance, durability, aesthetics, and cost-effectiveness.
Special steel performs exceptionally well in tooling applications due to its high strength, durability, and resistance to wear and abrasion. It is specifically designed to withstand the demanding conditions of tooling environments, such as cutting, shaping, and forming various materials. The unique properties of special steel, including its excellent hardness and toughness, make it an ideal choice for producing reliable and long-lasting tools that can efficiently handle heavy workloads and maintain their performance over time.
There are several different methods of coating special steel, including galvanizing, electroplating, powder coating, and thermal spraying. Galvanizing involves dipping the steel in a bath of molten zinc to create a protective layer. Electroplating uses an electric current to deposit a thin layer of metal onto the steel surface. Powder coating involves applying a dry powder to the steel and then curing it with heat to form a durable coating. Thermal spraying uses a high-velocity stream of molten or semi-molten material to create a protective layer on the steel.
Cobalt-based alloys are commonly used in dental applications due to their excellent mechanical properties, corrosion resistance, and biocompatibility. They are used in dental prosthetics, such as crowns, bridges, and dentures, as well as in dental implants. These alloys provide high strength and durability, ensuring long-lasting dental restorations. Additionally, their biocompatibility ensures that they do not cause any adverse reactions in the oral environment.
The requirements for special steel utilized in ballistic protection are quite rigorous and specific. Firstly, in order to effectively endure the impact of ballistic threats, the steel must possess a high level of hardness and strength. This is typically achieved by incorporating alloying elements like chromium, nickel, and molybdenum, which enhance the steel's strength and hardness. Furthermore, the steel should demonstrate exceptional toughness and ductility to prevent brittle fracture upon impact. This is crucial as it guarantees that the steel can absorb and disperse the energy from the ballistic threat, reducing penetration and minimizing the risk of injury. Moreover, the special steel used in ballistic protection should exhibit outstanding resistance to deformation and penetration. It should be capable of withstanding deformation even under high-velocity impact, maintaining its structural integrity and preventing the penetration of the ballistic threat. Another vital requirement is good weldability, as many components of ballistic protection are typically assembled through welding. The steel should have low susceptibility to cracking during the welding process, allowing for the creation of strong and dependable ballistic protection systems. Lastly, the special steel employed in ballistic protection should possess excellent corrosion resistance. This is necessary to ensure the durability and longevity of the protective equipment, particularly in environments where exposure to moisture, chemicals, or harsh weather conditions is likely. To fulfill these requirements, various types of special steel have been developed, such as high-hardness armor steel, ballistic steel, and armor-piercing steel. These steels often undergo rigorous testing and certification processes to ensure they meet the necessary ballistic protection standards.
Special steel is specifically designed to perform exceptionally well in extreme environments. It has excellent resistance to corrosion, high temperatures, and mechanical stress, making it highly reliable and durable. Special steel also maintains its strength and integrity even in challenging conditions, ensuring optimal performance and longevity in extreme environments.
There are several methods to prevent stress corrosion cracking in special steel. One common approach is to select a steel alloy with enhanced resistance to stress corrosion cracking. This can be achieved by adding alloying elements such as nickel, chromium, or molybdenum, which help improve the steel's corrosion resistance. Another method is to control the environment in which the steel is exposed. This can involve minimizing exposure to corrosive substances or adjusting temperature and humidity levels. Additionally, surface treatments such as passivation or coating can be applied to create a protective barrier against corrosion. Regular inspection and maintenance of the steel structure are also important to identify and address any potential sources of stress corrosion cracking.
Special steel is used in the textile industry for various purposes such as manufacturing machinery components, needles, and cutting tools. It provides durability, strength, and resistance to wear and tear, ensuring the efficient operation of textile machinery and improving the overall production process. Additionally, special steel is utilized in the production of textile blades, which are crucial for precision cutting and shaping of fabrics.
Yes, special steel can be recycled. Special steel, also known as alloy steel, is a type of steel that contains additional elements such as chromium, nickel, or molybdenum to enhance its properties. These additional elements do not hinder the recyclability of the steel. The recycling process for special steel is similar to that of regular steel. The steel is collected from various sources, such as scrap metal yards, demolition sites, or end-of-life products. It is then processed to remove impurities, sorted, and shredded into smaller pieces. The shredded steel is melted in a furnace to form molten steel, which is then cast into new products or used as raw material for manufacturing processes. Recycling special steel offers several benefits. Firstly, it helps conserve natural resources as it reduces the need for new steel production. Secondly, it reduces energy consumption and greenhouse gas emissions associated with steel manufacturing. Additionally, recycling steel helps decrease waste generation and promotes a circular economy by utilizing existing materials. Overall, special steel, like any other type of steel, can be recycled effectively, contributing to environmental sustainability and resource conservation.
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  
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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