Flat Steel Bar

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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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

Chemical Composition:

C	Mn	Si	Cr
0.65~0.75	0.40~0.60	1.40~1.70	0.20~0.40
S	P	Ni
≤0.030	≤0.030	≤0.030

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)

Payment:

-Invoicing on theoretical weight or actual weight as customer’s request.

-FOB, CFR or CIF.

-Regular terms of payment:

1, 30% payment in advance, the remaining balance (70% payment) against the copy of B/L. 100% payment before shipment.

2, 30% payment in advance, the remaining balance (70% L/C) against the copy of B/L. 100% payment before shipment.

3, Negotiable.

Q: Can steel flat bars be used for manufacturing aerospace components?: Yes, steel flat bars can be used for manufacturing aerospace components. Steel is a commonly used material in aerospace manufacturing due to its high strength, durability, and resistance to corrosion. Steel flat bars can be easily machined and formed into various shapes and sizes, making them suitable for producing different aerospace components such as brackets, supports, frames, and structural elements. Additionally, steel flat bars can provide the necessary strength and stability required for aerospace applications, ensuring the safety and reliability of the manufactured components.

Q: Can steel flat bars be welded?: Certainly, it is possible to weld steel flat bars. Welding serves as a prevalent and extensively employed technique for connecting or restoring steel materials, which encompasses flat bars. The procedure entails heating the steel until it reaches its melting point and subsequently melding the two sections with the aid of a welding electrode or filler material. The resultant weld forms a robust and long-lasting bond, rendering it suitable for an array of applications within the construction, manufacturing, and other industries where steel flat bars are frequently utilized. Nonetheless, adherence to appropriate welding protocols and methodologies is crucial to guarantee a prosperous weld that possesses structural integrity.

Q: Are steel flat bars available with pre-drilled holes?: Steel flat bars with pre-drilled holes are readily available, providing convenience and time-saving benefits for users. These holes are commonly used to facilitate easy installation and serve as secure attachment points for various applications. Different sizes and patterns of pre-drilled holes can be found to accommodate specific project requirements. The availability of pre-drilled holes on steel flat bars eliminates the need for additional drilling or machining, making them ideal for construction, furniture assembly, and industrial applications. These steel flat bars with pre-drilled holes are widely used in various industries.

Q: Can steel flat bars be used as handrails?: Yes, steel flat bars can be used as handrails. They are strong and durable, providing stability and support for individuals while also offering a sleek and modern appearance.

Q: How do steel flat bars compare to glass flat bars?: Steel flat bars and glass flat bars are two very different materials with distinct characteristics and uses. Steel flat bars are made from steel, a strong and durable metal alloy. They are commonly used in construction, manufacturing, and industrial applications. Steel flat bars offer high tensile strength, excellent load-bearing capacity, and resistance to corrosion. They can withstand heavy loads and are suitable for structural support, reinforcement, and framing. Steel flat bars are also versatile and can be easily welded, bent, or fabricated to meet specific project requirements. Additionally, steel flat bars are available in different sizes, thicknesses, and finishes, providing flexibility in design and construction. On the other hand, glass flat bars are made from glass, a brittle and transparent material. Glass flat bars are primarily used in architectural and decorative applications, such as for glass balustrades, partitions, shelving, or display fixtures. Glass flat bars provide a sleek and modern aesthetic, allowing for the passage of light and creating an open and airy feel. They are available in various colors, textures, and thicknesses, enabling customization and design creativity. However, glass flat bars have limited load-bearing capacity compared to steel, making them unsuitable for heavy structural or industrial applications. In summary, steel flat bars are known for their strength, durability, and versatility, making them ideal for structural and industrial purposes. Glass flat bars, on the other hand, offer a unique aesthetic appeal and are commonly used in architectural and decorative applications. The choice between steel and glass flat bars depends on the specific requirements of the project, including load-bearing needs, design preferences, and intended application.

Q: How do you determine the tensile strength of a steel flat bar?: To determine the tensile strength of a steel flat bar, you would typically perform a tensile test. This test involves subjecting a sample of the steel flat bar to a gradually increasing tensile force until it reaches its breaking point. The force required to break the sample is then recorded and used to calculate the tensile strength. First, you would obtain a representative sample of the steel flat bar. The sample should be a sufficient length to allow for gripping and testing without any irregularities or defects. It is important to ensure that the sample is prepared in accordance with the applicable standards and guidelines to obtain accurate results. Next, the sample is typically placed into a universal testing machine, which has the capability to apply a controlled tensile force to the sample. The machine is equipped with fixtures that securely hold the sample, ensuring it does not slip or become misaligned during the test. The test begins by slowly applying a tensile force to the sample, gradually increasing it until the sample breaks. The machine records the applied force at regular intervals, allowing for the construction of a stress-strain curve. This curve provides valuable information about the material's behavior under tension and helps to determine its tensile strength. Once the sample breaks, the maximum force applied before failure is recorded. This force is divided by the cross-sectional area of the sample to obtain the tensile strength. The cross-sectional area is typically determined by measuring the width and thickness of the sample using precise instruments. It is worth mentioning that the tensile strength may vary along the length of a steel flat bar due to factors such as variations in composition, heat treatment, or manufacturing processes. Therefore, it is advisable to take multiple samples from different sections of the bar to obtain representative results. In conclusion, determining the tensile strength of a steel flat bar involves performing a tensile test on a representative sample. This test involves gradually applying a tensile force until the sample breaks, recording the maximum force applied, and dividing it by the cross-sectional area of the sample to calculate the tensile strength.

Q: Are steel flat bars available in metric sizes?: Yes, steel flat bars are available in metric sizes. Metric sizes refer to the measurement system used in most countries outside of the United States, which is based on the International System of Units (SI). Steel flat bars can be found in various metric sizes, such as millimeters (mm) or centimeters (cm), to cater to the needs of different industries and applications. These metric sizes are commonly used in construction, manufacturing, and engineering projects where precise measurements are required. Overall, steel flat bars are available in both imperial and metric sizes to accommodate the diverse needs of customers worldwide.

Q: Are steel flat bars suitable for making machinery frames or chassis?: Certainly, machinery frames or chassis can be constructed using steel flat bars. Steel, renowned for its robustness and endurance, proves to be an optimal option for creating resilient and dependable machinery frames or chassis. The flat bars' shape facilitates effortless fabrication and welding, enabling the construction of frames or chassis with impeccable measurements and structural soundness. Moreover, steel possesses exceptional load-bearing capabilities, enabling it to withstand substantial burdens and furnish stability to the machinery. Furthermore, steel's abundance and cost-effectiveness compared to alternative materials render it a favored choice for fabricating machinery frames or chassis across diverse industries.

Q: Are steel flat bars suitable for high-temperature environments?: No, steel flat bars are not suitable for high-temperature environments as they tend to lose their strength and structural integrity when exposed to elevated temperatures.

Q: Can steel flat bars be drilled or machined?: Certainly! Drilling or machining steel flat bars is indeed possible. Steel, being a highly adaptable substance, can be easily manipulated through the utilization of suitable tools and techniques. In the case of drilling, the employment of a drill press or a handheld drill equipped with an appropriate drill bit can effectively penetrate steel flat bars. Additionally, achieving desired shapes or dimensions can be achieved through the use of milling machines, lathes, or CNC machines. Nevertheless, it is crucial to exercise caution by utilizing appropriate cutting tools and lubricants to ensure efficient machining and protect the steel flat bars from any potential damage.

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