hot rolled steel strip

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Loading Port:: China Main Port

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: How are steel strips processed for waterjet cutting?: Steel strips are processed for waterjet cutting through a series of steps to ensure precision and accuracy. First, the steel strips are cleaned and prepared by removing any dirt, debris, or rust that may be present on the surface. This is done to ensure a clean and smooth cutting surface. Once the strips are cleaned, they are placed on a waterjet cutting machine. The machine is equipped with a high-pressure waterjet nozzle that shoots a stream of water mixed with an abrasive material, usually garnet, at extremely high speeds. This waterjet is capable of cutting through the steel strips with great precision. Before the actual cutting process begins, the waterjet cutting machine is programmed with specific cutting parameters. This includes the desired dimensions, shapes, and angles of the steel strips. The machine operator uses specialized software to input these parameters, which are then translated into instructions for the waterjet cutting machine. Once the cutting parameters are set, the machine operator starts the cutting process. The high-pressure waterjet is directed onto the steel strip, cutting through it with extreme accuracy. The waterjet can cut through various thicknesses of steel, ranging from thin strips to thicker plates, depending on the machine's capabilities. During the cutting process, the waterjet is constantly monitored to ensure the desired dimensions and shapes are being achieved. The machine operator may make adjustments to the cutting parameters if necessary to maintain accuracy. After the waterjet cutting is complete, the steel strips are carefully removed from the machine. They may undergo further processing, such as deburring or sanding, to ensure a smooth and finished edge. Overall, the process of waterjet cutting steel strips involves cleaning and preparing the strips, programming the cutting parameters, and using a high-pressure waterjet to precisely cut through the steel. This method is known for its accuracy, versatility, and ability to cut through various thicknesses of steel.

Q: How do steel strips contribute to reducing material waste in various applications?: Steel strips contribute to reducing material waste in various applications by providing a highly efficient and cost-effective solution for manufacturing. Due to their high strength and flexibility, steel strips can be used in thinner dimensions compared to other materials, resulting in less material waste during production. Additionally, steel strips can be easily recycled, further reducing waste and environmental impact.

Q: How do steel strips perform in outdoor environments?: Steel strips perform well in outdoor environments due to their high strength, durability, and resistance to corrosion. They are capable of withstanding extreme weather conditions, including rain, snow, and sunlight, without deteriorating or losing their structural integrity. Additionally, steel strips can be coated or treated to enhance their resistance to rust and other forms of corrosion, ensuring their long-term performance and reliability in outdoor settings.

Q: How are steel strips processed for fastening?: Steel strips undergo a series of steps to prepare them for various applications. It all begins by selecting high-quality steel, which is then rolled into thin strips of the desired thickness. These strips are cleaned through processes like degreasing or pickling to eliminate any impurities or contaminants. After the cleaning stage, the steel strips are annealed. This involves heating and slowly cooling them to relieve internal stresses and enhance their ductility. This makes the strips easier to work with and less likely to crack or break during fastening. Once annealed, the steel strips can be further treated based on specific requirements. For instance, they can be coated with protective layers, like zinc or galvanized coatings, to improve corrosion resistance. This is especially important for fastening applications where the strips will be exposed to harsh environmental conditions. To achieve the desired shape and dimensions, the steel strips are cut and shaped using methods like shearing, slitting, or stamping. These processes allow the strips to be tailored to the specific requirements of fastening, ensuring a precise fit and optimal performance. Finally, the processed steel strips are subject to quality control checks to ensure they meet the required standards. This involves testing for mechanical properties, dimensional accuracy, surface finish, and overall integrity. Overall, the processing of steel strips for fastening involves various steps, including cleaning, annealing, coating, shaping, and quality control measures. These steps ensure that the steel strips are well-prepared and suitable for a wide range of fastening applications, offering strength, durability, and reliability.

Q: How are steel strips used in packaging?: Steel strips are commonly used in packaging to secure and reinforce various types of materials and products. They are typically wrapped around packages or pallets to provide additional strength and stability during transportation and storage. Steel strips help prevent shifting, sliding, or damage to the packaged goods, ensuring they remain intact and protected throughout the supply chain.

Q: What are the different surface patterns available for steel strips?: There are several different surface patterns available for steel strips, including smooth, brushed, embossed, and textured finishes.

Q: What is the typical length of steel strips?: The typical length of steel strips can vary depending on the specific application, but they are commonly available in lengths ranging from a few feet to several hundred feet.

Q: Can steel strips be used in kitchen appliances?: Yes, steel strips can be used in kitchen appliances. Steel is a durable and versatile material that is commonly used in the manufacturing of various kitchen appliances, such as refrigerators, ovens, and dishwashers. Its strength and resistance to corrosion make it an ideal choice for kitchen appliances that require stability and longevity. Additionally, steel strips can be shaped and formed into different sizes and designs, making them suitable for various appliance components.

Q: Can steel strips be used in the manufacturing of furniture?: Yes, steel strips can be used in the manufacturing of furniture. Steel strips are versatile and can be used for various purposes such as reinforcement, support, or decorative elements in furniture manufacturing. They provide strength, durability, and a modern aesthetic to furniture designs.

Q: What are the common quality control measures for steel strips?: To guarantee the highest level of quality and consistency in the production of steel strips, various common quality control measures are employed. These measures encompass: 1. Dimensional checks: Precision instruments are utilized to perform dimensional checks, ensuring that the steel strips meet specific requirements regarding width, thickness, and length, as specified by tolerances. 2. Surface inspection: Visual inspections or automated systems are employed to identify and eliminate surface defects, such as scratches, pits, or rust, ensuring that the steel strips possess a flawless surface. 3. Chemical composition analysis: To fulfill desired strength and durability criteria, the correct chemical composition is crucial for steel strips. Techniques like spectrometry are utilized to verify the steel's composition. 4. Mechanical testing: Tensile strength, yield strength, and elongation are essential mechanical properties for steel strips. Mechanical testing is conducted to verify that the strips meet the specified mechanical requirements. 5. Coating inspection: If the steel strips are coated for protection, it is vital to inspect the coating's adhesion, thickness, and uniformity. Coating inspections are carried out to ensure that the strips are adequately shielded against corrosion. 6. Edge quality assessment: Visual inspections or measuring tools are used to examine the edges of steel strips, ensuring they are smooth, straight, and devoid of burrs or sharp edges. 7. Flatness evaluation: Specialized equipment is employed to measure deviations from a flat plane, ensuring that the steel strips possess a flat and even surface, facilitating proper fit and performance in various applications. 8. Non-destructive testing: Techniques like ultrasonic testing or magnetic particle inspection can be utilized to detect internal defects or irregularities within the steel strips without causing any damage. 9. Packaging and labeling: Quality control measures also encompass appropriate packaging and labeling of steel strips to prevent damage during transportation and ensure easy identification and traceability. By implementing these quality control measures, manufacturers can guarantee that steel strips meet the required specifications and consistently deliver optimal performance across various industries such as automotive, construction, and manufacturing.

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