hot rolled steel strip

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Payment Terms:: TT OR LC

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Product Description:

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 ratio of yield strength and tensile strength and elastic limit 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 Strip Steel:

-Material: 30W4Cr2VA

-Standard: GB/T 1222-2007

-Type: Spring Steel

Chemical Composition:

C	Si	Mn	S
0.26~0.34	0.17~0.37	≤0.40	≤0.030
P	Cr	Ni	Cu
≤0.030	2.00~2.50	≤0.35	≤0.25
V	W
0.50~0.80	4.00~4.50

Mechanical Properties:

-Yield Strength σs (MPa): ≥1470 (150)

-Elongation δ10(%):≥7

-Hardness:

1, Hot rolled + Heat treatment, ≤321HB

2, Cold drawn + Heat treatment: ≤321HB

-Impact Power: ≥40

Norm of heat treatment:

1, Quenching: 1050℃~1100℃.

2, Cooled by oil.

3, Tempering: 600℃±50℃.

Usage/Applications of Spring Strip Steel:

-Due to the elements W, Cr and V, this type of spring steel obtain pretty high hardenability and nice mechanical properties under room temperature and high temperature. The tempering stability and hot workability are good.

-Being used under the state of quenching and high temperature tempering. It’s usually used as heat-resisting springs with working temperature below 500℃, like main secure valve spring of furnace and turbine steam seal leaf springs.

Packaging & Delivery of Spring Strip Steel:

-Packing Detail: The products will be well packed.

-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.

Transportation:

1, The products can be delivered by bulk vessel or by container.

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

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

Payment:

-Theoretical weight/Actual weight.

-FOB, CFR or CIF.

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

Photos of Spring Strip Steel:

Spring Strip Steel

Q: What is the yield strength of steel strips?: The yield strength of steel strips varies depending on the specific grade and composition of the steel. Generally, steel strips have a yield strength between 210 and 550 megapascals (MPa). Higher strength steels, such as high-strength low-alloy (HSLA) steel or advanced high-strength steel (AHSS), can have yield strengths exceeding 1000 MPa. It is important to note that the exact yield strength will also depend on factors such as the thickness and processing of the steel strips.

Q: Can steel strips be used for stamping or forming?: Yes, steel strips can be used for stamping or forming. Steel strips are commonly used in various industries for stamping or forming processes due to their durability and flexibility.

Q: What are the factors that affect the machinability of steel strips?: The factors that affect the machinability of steel strips include the type and composition of the steel, its hardness and microstructure, the presence of impurities and alloying elements, the cutting tools and their condition, cutting speed and feed rate, lubrication and cooling, as well as the machine setup and stability.

Q: What is the impact resistance of steel strips?: The impact resistance of steel strips is generally quite high. Steel is known for its strength and durability, making it a popular choice for various industrial applications where impact resistance is crucial. The specific impact resistance of steel strips can vary depending on factors such as the composition and grade of the steel, as well as the thickness and processing techniques used. Steel strips are often used in applications such as automotive manufacturing, construction, and machinery, where they may be subjected to high levels of impact and stress. Due to their excellent strength and toughness properties, steel strips can withstand heavy impacts without fracturing or deforming. This makes them highly reliable and capable of withstanding harsh operating conditions. The impact resistance of steel strips can be further enhanced through various methods, such as heat treatment or alloying. These techniques can increase the hardness and toughness of the steel, making it even more resistant to impact forces. Additionally, the surface finish and protective coatings applied to steel strips can also contribute to their impact resistance by reducing the risk of corrosion and surface damage. In summary, steel strips are known for their high impact resistance, making them a preferred material choice in industries that require durable and reliable components. The specific impact resistance may vary depending on various factors, but overall, steel strips are designed to withstand heavy impacts without compromising their structural integrity.

Q: Are steel strips suitable for the production of electrical components?: Yes, steel strips are suitable for the production of electrical components as they offer excellent electrical conductivity, corrosion resistance, and mechanical strength, making them a reliable choice for various applications in the electrical industry. Additionally, steel strips can be easily shaped and molded into desired forms, allowing for efficient manufacturing processes.

Q: What are the safety precautions when working with steel strips?: When working with steel strips, it is important to follow several safety precautions to minimize risks. Firstly, wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots is crucial to protect against cuts, burns, and potential eye injuries. Additionally, workers should ensure a well-ventilated workspace to prevent inhalation of harmful fumes or dust particles generated during cutting or shaping processes. It is also essential to handle steel strips with caution, using proper lifting techniques and avoiding sharp edges to prevent accidents. Regular maintenance and inspection of tools and equipment should be conducted to ensure their proper functioning, reducing the risk of accidents. Lastly, proper training and adherence to safety protocols are vital to ensure a safe working environment when dealing with steel strips.

Q: Are steel strips suitable for making architectural staircases?: Yes, steel strips are suitable for making architectural staircases. Steel is a strong and durable material that can provide the necessary support and stability required for staircases. Additionally, steel strips can be customized and manipulated to create a variety of designs and styles, making them a versatile choice for architectural staircases.

Q: What are the different thicknesses available for steel strips?: The different thicknesses available for steel strips vary depending on the application and industry requirements. Common thicknesses can range from very thin, such as 0.001 inches (0.0254 mm), to thicker options like 0.25 inches (6.35 mm) or more. However, it is important to note that steel strips can be manufactured in a wide range of thicknesses to meet specific project needs.

Q: How are steel strips different from steel sheets or plates?: Steel strips are narrower and thinner compared to steel sheets or plates. They are often used for specific applications such as making springs, automotive components, and electrical appliances. Steel sheets and plates, on the other hand, are larger and thicker, commonly utilized in construction, manufacturing, and structural applications.

Q: What are the factors that affect the vibration damping properties of steel strips?: There are several factors that can affect the vibration damping properties of steel strips. 1) Material composition: The composition of the steel strip, including the type and amount of alloying elements, can influence its ability to dampen vibrations. Certain alloying elements, such as manganese or silicon, can enhance the damping properties of steel. 2) Microstructure: The microstructure of the steel strip, which is determined by factors like cooling rate during manufacturing, can affect its damping properties. Fine-grained structures are generally known to exhibit better damping characteristics compared to coarse-grained structures. 3) Thickness and width: Thicker and wider steel strips tend to have better damping properties as they provide a larger surface area for energy dissipation. Thinner and narrower strips may exhibit higher vibration amplitudes and reduced damping. 4) Surface finish: The surface finish of the steel strip, including roughness and imperfections, can influence its ability to dampen vibrations. Smoother surfaces with lower roughness values tend to provide better damping characteristics. 5) Temperature: The temperature at which the steel strip operates can affect its damping properties. In general, higher temperatures tend to reduce the damping capacity of steel, as thermal energy can interfere with the dissipation of vibrational energy. 6) Applied load: The magnitude and type of load applied to the steel strip can impact its damping properties. Vibration damping can be influenced by the frequency and amplitude of the applied load, as well as the duration and cyclic nature of the loading. 7) Environmental conditions: The presence of moisture, corrosive substances, or other environmental factors can affect the damping properties of steel strips. Corrosion or degradation of the material can lead to a decrease in damping performance. 8) Manufacturing process: The method used to manufacture the steel strip, such as hot rolling or cold rolling, can affect its damping properties. Different manufacturing processes can result in variations in microstructure and material properties, which can impact the ability to dampen vibrations. Overall, a combination of these factors determines the vibration damping properties of steel strips, and understanding their influence can help in designing and selecting materials with optimal damping characteristics for specific applications.

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