Hot Rolled Spring Steel
- Ref Price:
-
- 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 Hot Rolled Spring Steel
-Material: 55CrMnA
-Standard: GB/T 1222-1984
-Type: Spring Steel
Corresponding Steel Grade for Reference:
CHN, GB | JPN, JIS | GER, DIN |
55CrMnA | SUP9 | 55Cr3 |
GBR, BS | FRA,FN | |
525A58 | 55Cr3 |
Chemical Composition:
C | Si | Mn |
0.52~0.60 | 0.17~0.37 | 0.65~0.95 |
S | P | Cr |
≤0.030 | ≤0.030 | 0.65~0.95 |
Ni | Cu | V |
≤0.35 | ≤0.25 | 0.10~0.20 |
Mechanical Properties:
-Tensile Strength σb (MPa): ≥1225（125）
-Yield Strength σs (MPa): ≥1080 (110)
-Percentage reduction of area: ψ (%): ≥20
-Hardness:
1, Hot rolled, ≤321HB
2, Cold drawn + Heat treatment: ≤321HB
-Norm of heat treatment:
1, Quenching: 830℃~860℃.
2, Cooled by oil.
3, Tempering: 460℃~510℃.
Usage/Applications of Hot Rolled Spring Steel
-55CrMnA Spring Steel possesses high strength, plasticity and toughness. Its hardenability is good. The thermal sensitivity is lower than Mn-steel. The decarburizing tendency is smaller than Si-Mn steel. The outstanding characteristic is the nice hardenability, moreover, hot workability, general mechanical properties and anti-decarburizing are also good.
-It’s used for producing large flat spring o spiral spring with big diameter that can bear much load in the industry of cars and tractors.
Packaging & Delivery of Hot Rolled Spring Steel:
-Packing Detail:
1, The products can be packed in bundles by steel wires.
2, The weight of each bundle no exceed normally 3 tons
-Marks: there are two types of marks.
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.
Payment:
-Invoicing on theoretical weight or actual weight as customer’s request.
-FOB, CFR or CIF.
-Terms of payment: T.T. or L/C at sight.
Photos of Hot Rolled Spring Steel:
- Q:How is special steel used in the marine manufacturing process?
- Special steel is used in the marine manufacturing process for various applications such as shipbuilding, offshore structures, and marine equipment. It possesses exceptional properties like corrosion resistance, high tensile strength, and durability, making it suitable for constructing hulls, decks, and other critical components of ships and offshore platforms. Special steel is also used in manufacturing marine equipment like propeller shafts, rudders, and anchors, ensuring their reliability and performance in harsh marine environments.
- Q:How does special steel contribute to the marine industry?
- The marine industry greatly relies on special steel due to its exceptional strength, durability, and corrosion resistance, which are vital qualities for various marine applications. A significant role of special steel in the marine industry lies in the building of ships and submarines. These vessels face harsh environmental conditions, such as exposure to saltwater, extreme temperatures, and high pressures. Special steel, such as high-strength low-alloy (HSLA) steel or stainless steel, ensures the structural integrity of these vessels and improves their overall performance. The high strength-to-weight ratio of the steel allows for the creation of lighter yet sturdy hulls, enabling ships and submarines to navigate rough seas more effectively. In addition, special steel is extensively used in marine equipment and components. For instance, it is utilized in the manufacturing of propeller shafts, rudders, and other crucial parts that need to withstand the forces exerted by water. Stainless steel, with its corrosion-resistant properties, is ideal for various marine fittings like valves, fasteners, and pipes, guaranteeing longevity and efficient operation in highly corrosive marine environments. Furthermore, special steel finds applications in offshore structures such as oil rigs, platforms, and wind turbines. These structures must endure harsh conditions like strong ocean currents, heavy waves, and corrosive saltwater. Special steel grades like carbon-manganese steel or weathering steel are specifically designed to provide exceptional strength and corrosion resistance, making them suitable for offshore installations. Lastly, in the marine industry, special steel is indispensable for fabricating marine containers and cargo handling equipment. The steel's high tensile strength and impact resistance ensure the safe transportation of goods by sea, making sure that containers can withstand dynamic forces during shipping and protect the cargo from water intrusion. All in all, special steel's unique properties make it an essential material in the marine industry. Its strength, durability, and corrosion resistance significantly contribute to the construction of ships, submarines, offshore structures, marine equipment, and cargo containers, enabling safe and efficient maritime operations.
- Q:Can special steel be used in the defense industry?
- Yes, special steel can be used in the defense industry. Special steel, such as high-strength steel or armor-grade steel, possesses unique properties that make it suitable for various defense applications. It can be used for manufacturing military vehicles, aircraft components, body armor, ballistic plates, and other defense equipment that require enhanced strength, durability, and resistance to extreme conditions. Special steel's ability to withstand impacts, provide protection against projectiles, and maintain structural integrity makes it an essential material in the defense industry.
- Q:What are the properties of wear-resistant steel?
- Wear-resistant steel possesses several properties that make it suitable for withstanding wear and abrasion. These properties include high hardness, toughness, and strength, which help in resisting deformation, chipping, and cracking. Additionally, wear-resistant steel also exhibits excellent corrosion resistance, enabling it to withstand exposure to harsh environments without deteriorating. These properties make wear-resistant steel a popular choice for applications that involve heavy machinery, mining equipment, cutting tools, and industrial components subjected to constant wear and tear.
- Q:What is the purpose of annealing in special steel production?
- The purpose of annealing in special steel production is to improve the mechanical properties and overall quality of the steel. Annealing is a heat treatment process in which the steel is heated to a specific temperature and then slowly cooled, typically in a controlled atmosphere. This process helps to relieve any internal stresses or strains that may have developed during previous manufacturing processes such as rolling or forging. During annealing, the steel's microstructure undergoes changes, resulting in a more refined and homogeneous material. The process allows for the redistribution of atoms, which helps to eliminate defects, improve grain structure, and enhance the steel's toughness, ductility, and machinability. Annealing also helps to reduce the hardness of the steel, making it easier to work with and shape. It can also improve the steel's resistance to cracking and enhance its resistance to corrosion or other environmental factors. Additionally, annealing can help to achieve desired physical properties such as increased hardness or improved magnetic properties in certain special steel alloys. Overall, the purpose of annealing in special steel production is to optimize the steel's properties and ensure it meets the specific requirements of its intended application, whether it be in industries such as automotive, aerospace, or manufacturing.
- Q:How does special steel contribute to the packaging aftermarket industry?
- Special steel contributes to the packaging aftermarket industry by providing durable and high-quality materials for the manufacturing of packaging machinery and equipment. It enables the production of robust packaging solutions that can withstand the rigors of transportation and handling, ensuring the safe and secure delivery of goods. Additionally, special steel's corrosion resistance properties help in maintaining the integrity of packaging materials, prolonging their lifespan and reducing the need for frequent replacements.
- Q:How does special steel contribute to the defense sector?
- The defense sector relies heavily on special steel, which offers numerous benefits and applications that bolster national security. First and foremost, special steel is renowned for its exceptional strength, durability, and resistance to wear and corrosion. These attributes make it an ideal material for manufacturing military equipment and weapons. Tanks, armored vehicles, naval ships, and aircraft carriers all benefit from the structural integrity and protection against enemy attacks provided by special steel. Furthermore, the use of special steel in ballistic armor and bulletproof vests enhances the safety of soldiers on the battlefield. Additionally, special steel alloys possess remarkable thermal resistance and high-temperature capabilities, making them suitable for producing jet engines, turbines, and rocket components. These materials can withstand extreme conditions, enabling faster and more efficient military aircraft, missiles, and vehicles used in space exploration. Moreover, special steel's electromagnetic properties make it invaluable in the defense sector. It is employed in developing radar systems, communication devices, and electronic warfare equipment. Special steel alloys effectively shield against electromagnetic interference, ensuring secure and reliable communication during critical defense operations. Furthermore, special steel plays a vital role in the production of precision tools and machinery used in the defense sector. With its high machinability, special steel enables the fabrication of complex components with tight tolerances. Military-grade cutting tools, drills, and machine parts are manufactured using special steel, thereby enhancing the efficiency and effectiveness of military operations. In conclusion, special steel significantly contributes to the defense sector by providing crucial properties such as strength, durability, resistance, and more. Its applications in military equipment, weaponry, armored vehicles, aircraft, and electronic systems not only enhance national security but also protect soldiers and enable advanced defense capabilities.
- Q:What are the non-destructive testing methods used for special steel?
- Special steel can be evaluated for flaws or defects using various non-destructive testing (NDT) methods. These techniques are designed to identify issues in the material without causing any harm. Ultrasonic testing is a prevalent NDT method for special steel. It involves transmitting high-frequency sound waves through the steel and analyzing the reflected echoes. By measuring the time it takes for the sound waves to travel through the steel and return, technicians can determine the material's thickness, density, and internal structure. This method is highly effective in detecting cracks, voids, or inclusions in the steel. Magnetic particle testing is another commonly used NDT method for special steel. It requires applying a magnetic field to the steel's surface and coating it with magnetic powder. Any irregularities or defects in the steel will result in magnetic flux leakage, causing the magnetic particles to cluster and create visible indications. This technique is particularly useful in identifying surface cracks or discontinuities. Liquid penetrant testing is frequently employed for NDT of special steel. It entails applying a liquid dye or fluorescent substance to the steel's surface. The dye penetrates any surface cracks or defects, and after a specified time, excess dye is removed. A developer is then used to draw out the dye from any flaws, making them visible under UV light. This method effectively detects surface discontinuities and is commonly utilized in the aerospace and automotive industries. Radiographic testing is another NDT method applicable to special steel. This procedure involves exposing the steel to X-rays or gamma rays and capturing the resulting image on film or a digital detector. Technicians can analyze the radiographic image to identify internal flaws like cracks, voids, or inclusions in the steel. This method is particularly advantageous for thicker sections of steel or situations where accessing the material is challenging. In conclusion, non-destructive testing methods, including ultrasonic testing, magnetic particle testing, liquid penetrant testing, and radiographic testing, are frequently employed for special steel. These methods ensure the detection of flaws or defects without causing any damage to the material, thereby ensuring its integrity and reliability.
- Q:Can special steel be used in the automotive parts manufacturing industry?
- Yes, special steel can be used in the automotive parts manufacturing industry. Special steel offers high strength, durability, and resistance to corrosion, making it suitable for various automotive components such as engine parts, suspension systems, and body structures. Additionally, special steel can be tailored to meet specific requirements, allowing manufacturers to optimize performance and safety in automotive applications.
- Q:How does special steel contribute to the agricultural industry?
- In the agricultural industry, special steel plays a crucial role in providing strong and high-performing parts for a range of farming equipment. Its unique characteristics, including strength, toughness, and resistance to corrosion, make it perfect for enduring the challenging conditions encountered in agricultural operations. One important use of special steel in agriculture is in the production of tillage tools like plows, harrows, and cultivators. These tools experience intense forces and abrasion while breaking the soil, and special steel ensures their durability and effectiveness even after extended periods of use. The steel's toughness and resistance to wear reduce the need for frequent replacements, improving the overall productivity and cost-effectiveness of agricultural activities. Moreover, special steel is extensively utilized in the manufacturing of harvesting machinery such as combine harvesters, grain conveyors, and crop processing equipment. These machines require parts that can withstand the continuous stress and impact of harvesting and processing operations. Special steel's exceptional strength and ability to resist fatigue allow these machines to handle heavy loads and endure prolonged usage without compromising performance or safety. Additionally, special steel finds application in constructing irrigation systems, storage tanks, and other necessary infrastructure for efficient water management in agriculture. The steel's resistance to corrosion and durability ensure that these structures can endure the challenging conditions of moisture and chemicals present in agricultural environments, guaranteeing their long-lasting functionality. All in all, special steel significantly contributes to the agricultural industry by providing long-lasting and dependable parts for various farming equipment and infrastructure. Its properties enhance the efficiency, productivity, and longevity of agricultural machinery and structures, ultimately benefiting farmers and promoting the overall sustainability of agricultural practices.
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 |
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|---|---|
| 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 |
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|---|---|
| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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| 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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Hot Rolled Spring Steel
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50MT m.t.
- Supply Capability:
- 600000TONS/YEAR 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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