Supply Steel Flat; Flat Steel Bars with High Quality

Supply Steel Flat; Flat Steel Bars with High Quality System 1

Supply Steel Flat; Flat Steel Bars with High Quality

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 3000 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

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

Mechanical Properties:

-Annealing Condition:

1, Tensile Strength: σb/MPa：≤835

2, Elongation: δ/%：≥8

-Quencher condition:

1, Tensile strength: σb/MPa：785~1175

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)

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase?

A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Supply Steel Flat; Flat Steel Bars with High Quality

Q: What are the different types of finishes available for steel flat bars?: There are several types of finishes available for steel flat bars, each offering unique benefits and aesthetic appeal. Some of the most common finishes include: 1. Mill Finish: This is the standard finish for steel flat bars, which is characterized by a plain, smooth surface. It is achieved by the hot rolling process and provides a clean, industrial look. 2. Hot Rolled Pickled and Oiled (HRPO): In this finish, the steel flat bar goes through an additional process of being pickled in an acid bath to remove impurities and then oiled to prevent rust. HRPO finish provides enhanced corrosion resistance and a slightly smoother surface. 3. Cold Rolled: This finish involves passing the steel flat bar through a set of rollers at room temperature, resulting in a smoother and more precise surface. Cold rolled finish is commonly used for applications where a high-quality appearance is desired. 4. Galvanized: With a galvanized finish, the steel flat bar is coated with a layer of zinc to protect it from corrosion. This finish is highly durable and suitable for outdoor applications. 5. Powder Coated: Powder coating involves applying a dry powder to the steel flat bar and then baking it to create a durable, protective finish. It is available in a wide range of colors and provides excellent resistance to chipping, peeling, and fading. 6. Brushed: A brushed finish is achieved by rubbing the surface of the steel flat bar with a wire brush or abrasive material, creating a textured, satin-like appearance. This finish is often used for decorative purposes and can help hide scratches or imperfections. 7. Polished: Polishing involves grinding the surface of the steel flat bar to a smooth, reflective finish. It is commonly used in architectural or decorative applications where a high-end, mirror-like appearance is desired. These are just a few examples of the different types of finishes available for steel flat bars. The choice of finish depends on the intended use, desired appearance, and environmental factors that may affect the steel's corrosion resistance.

Q: Can steel flat bars be used for manufacturing agricultural implements?: Yes, steel flat bars can be used for manufacturing agricultural implements. Steel is a strong and durable material that is suitable for a variety of applications, including agricultural machinery. Flat bars can be used to create the framework or structural components of the agricultural implements, such as plows, cultivators, and harrows. The flat shape of the bars allows for easy fabrication and welding, making it a versatile choice for manufacturing. Additionally, steel flat bars can be heat-treated or galvanized to enhance their strength and resistance to corrosion, ensuring that the agricultural implements will withstand the harsh conditions of farming and last for a long time.

Q: Are steel flat bars suitable for fabrication of brackets or supports?: Absolutely, steel flat bars are indeed appropriate for fabricating brackets or supports. Renowned for their strength, durability, and versatility, steel flat bars are an outstanding choice for numerous applications, including the construction of brackets and supports. The flat shape of steel bars facilitates effortless fabrication and manipulation, simplifying the creation of brackets or supports in diverse shapes and sizes. Moreover, steel boasts high resistance to deformation, ensuring that the brackets or supports will remain robust and dependable over time. Furthermore, steel flat bars possess exceptional load-bearing capabilities, rendering them suitable for supporting heavy loads or providing structural stability. This is particularly crucial in scenarios where brackets or supports must withstand substantial pressure or weight. Additionally, steel flat bars can be effortlessly welded, bolted, or securely attached to other structures, guaranteeing a reliable and steadfast connection. This permits the fabrication of brackets or supports that can be seamlessly integrated into existing frameworks or structures. To sum up, steel flat bars are an appropriate and favored choice for fabricating brackets or supports due to their strength, durability, versatility, and ease of fabrication. Whether for industrial, commercial, or residential applications, steel flat bars offer a dependable and long-lasting solution for diverse bracket or support requirements.

Q: Are steel flat bars suitable for architectural detailing?: Yes, steel flat bars are suitable for architectural detailing. They offer strength, durability, and versatility, making them ideal for various architectural applications such as handrails, window frames, door frames, and decorative elements. Additionally, steel flat bars can be easily manipulated and shaped to meet specific design requirements, providing architects with flexibility in their creative vision.

Q: Can steel flat bars be used for elevator shafts or doors?: Yes, steel flat bars can be used for elevator shafts or doors. Steel flat bars are known for their strength, durability, and versatility, making them suitable for various structural applications such as elevator shafts or doors.

Q: What are the applications of steel flat bars in the automotive industry?: Steel flat bars are extensively utilized in the automotive industry due to their wide range of applications and numerous benefits. Some of the primary uses of steel flat bars in the automotive sector include: 1. Chassis and Frame Components: Automobiles often incorporate steel flat bars in the construction of chassis and frame components. These bars offer the necessary strength and rigidity to support the vehicle's weight and endure various forces and vibrations. 2. Suspension Systems: Suspension systems, including leaf springs and torsion bars, are fabricated using steel flat bars. These components assist in absorbing shocks and vibrations, thereby enhancing the overall ride quality and stability of the vehicle. 3. Braking Systems: Steel flat bars are integral to the construction of various braking system components, such as brake shoes and brake rotors. They provide the essential strength and durability to withstand the high temperatures and pressures associated with braking. 4. Safety Features: Steel flat bars find application in the manufacturing of safety features like roll bars and roll cages. These components offer additional protection to the vehicle's occupants in the event of a rollover or collision, thereby improving overall safety. 5. Bumpers and Grilles: Automobile bumpers and grilles are often fabricated using steel flat bars. These bars provide impact resistance and safeguard the engine and other vital components located at the front and rear ends of the vehicle. 6. Body Panels: Steel flat bars are extensively used in the construction of body panels, such as door frames, roof rails, and window frames. Their strength and stability contribute to maintaining the structural integrity of the vehicle's body. 7. Exhaust Systems: The manufacturing of exhaust systems, including exhaust pipes and mufflers, incorporates steel flat bars. These bars offer high-temperature resistance, corrosion resistance, and durability, ensuring efficient exhaust gas flow and reducing noise levels. In conclusion, steel flat bars play a vital role in the automotive industry by providing strength, durability, and reliability to various components and systems. They significantly contribute to the overall performance, safety, and longevity of automobiles.

Q: How do you prevent warping of steel flat bars during fabrication?: To avoid warping of steel flat bars during fabrication, there are several steps that can be taken: 1. Storage: It is important to store steel flat bars in a dry and controlled environment to prevent exposure to moisture and humidity. Moisture can cause the steel to expand and contract, leading to warping. 2. Preheating: Prior to fabrication, preheating the steel flat bars can help reduce the risk of warping. This involves gradually increasing the temperature of the bars to relieve internal stresses and ensure uniformity. 3. Handling: During fabrication, it is crucial to handle the steel flat bars carefully to minimize the risk of warping. Dropping or mishandling the bars can cause deformation. 4. Welding techniques: Proper welding techniques are essential to prevent warping when welding steel flat bars. This includes controlling the heat input, using the correct welding parameters, and ensuring proper alignment and fit-up of the bars. 5. Stress relieving: After fabrication, stress relieving can be performed to minimize residual stresses and reduce the risk of warping. This involves heating the steel flat bars to a specific temperature and holding them there for a certain period of time to allow stress relaxation. 6. Cooling: Proper cooling after fabrication is crucial to prevent warping. Rapid cooling can result in uneven temperature distribution, leading to warping. Therefore, it is important to allow the bars to cool down slowly and naturally. By implementing these preventative measures, the likelihood of warping during the fabrication of steel flat bars can be significantly reduced, resulting in higher quality and more reliable end products.

Q: What are the different types of tests performed on steel flat bars?: Steel flat bars undergo several common tests to ensure their quality and suitability for different uses. These tests evaluate the strength, durability, and other mechanical properties of the steel. Some of the tests conducted on steel flat bars include: 1. Tensile Test: This test determines the maximum amount of tensile stress the steel flat bar can withstand before it breaks. It provides information about the material's yield strength, ultimate tensile strength, and elongation. 2. Hardness Test: Assessing the hardness of a steel flat bar is crucial in determining its resistance to deformation, wear, and abrasion. Methods such as Rockwell, Brinell, and Vickers hardness tests are employed to measure the bar's hardness. 3. Impact Test: This test evaluates the steel flat bar's ability to absorb energy under high-stress conditions. By striking the material with a pendulum, the test measures the energy absorbed and the bar's resistance to cracking or breaking. 4. Bend Test: The bend test examines the steel flat bar's ductility and flexibility by bending it to a specific angle without fracturing. This test helps determine if the material is suitable for applications involving bending or forming processes. 5. Chemical Analysis: Chemical analysis is conducted to determine the composition of the steel flat bar, including the percentages of various elements like carbon, manganese, silicon, and others. This analysis ensures that the steel meets the required specifications and standards. 6. Ultrasonic Testing: Ultrasonic testing employs high-frequency sound waves to detect internal flaws or defects in the steel flat bar. It helps identify cracks, voids, or inclusions that might impact the overall integrity and strength of the material. 7. Dimensional Inspection: This test ensures that the steel flat bar meets the necessary dimensional tolerances and specifications. It involves measuring the bar's length, width, thickness, and other dimensions to ensure compliance with desired standards. 8. Microstructure Analysis: Microstructure analysis involves examining the metallurgical structure of the steel flat bar under a microscope. It aids in identifying the grain size, phase distribution, and any irregularities that may affect the material's mechanical properties. By conducting these tests, manufacturers, suppliers, and end-users can ensure that steel flat bars meet required quality standards and are suitable for their intended applications.

Q: 80 * 80 * 4 galvanized flat steel is what specifications?: Galvanized square pipe.Specification: 80 * 80 * 4 is the dimension of galvanized square pipe. That is to say, the length and width of the inner diameter of the nozzle are 80mm, and the thickness of the tube wall is 4mm.

Q: How do you determine the load capacity of a steel flat bar?: To determine the load capacity of a steel flat bar, you need to consider factors such as the dimensions and material properties of the bar, the type of loading it will experience, and the desired safety factor. Calculations involving formulas and engineering principles can be used to determine the maximum load the flat bar can withstand without experiencing permanent deformation or failure.

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