• Flat Steel Bar System 1
  • Flat Steel Bar System 2
  • Flat Steel Bar System 3
  • Flat Steel Bar System 4
Flat Steel Bar

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/MPa785~1175

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 in marine environments?
Yes, steel flat bars can be used in marine environments with proper precautions. However, it is important to note that steel is not inherently resistant to corrosion in marine environments, as exposure to saltwater can cause rust and deterioration over time. To mitigate this issue, stainless steel flat bars are often recommended for marine applications. Stainless steel contains a higher percentage of chromium, which forms a protective oxide layer on the surface, providing excellent corrosion resistance. Additionally, stainless steel flat bars are available in different grades, such as 316 or 316L, which are specifically designed to withstand marine environments. These grades offer superior resistance to pitting and crevice corrosion, making them suitable for applications in coastal or offshore areas. Proper maintenance and regular cleaning are also essential to ensure the longevity of steel flat bars in marine environments.
Q: What is the tensile force of the galvanized flat steel of 20*3?
Since the specifications require that the stationary support be able to withstand the 49N pull, I wonder if this flat steel can withstand such a large pull to choose the flat type;
Q: What is the maximum thickness available for steel flat bars?
The maximum thickness available for steel flat bars can vary depending on the manufacturer and the specific grade of steel being used. However, in general, steel flat bars can be found in thicknesses ranging from 1/8 inch to 1 inch or even thicker. It is important to note that thicker steel flat bars are typically less common and may require special ordering or fabrication. Additionally, certain specialized steel alloys or custom-made flat bars may have even greater maximum thicknesses available.
Q: What's the difference between stainless steel flat bar 304 and 316?
Stainless steel flat bar is one of the shape steel, 304 stainless steel flat steel, generally divided into hot-rolled flat steel and cold drawn flat steel. The general delivery state of hot-rolled 304 stainless steel flat surface is pickling, cold drawn 304 stainless steel flat surface, general delivery state for wire drawing and polishing.There are many kinds of steel, it is a kind of solid strip steel with definite section shape and size. It is divided into two kinds of simple and complex sections according to their cross section shapes. The former includes round steel, Fang Gang, flat steel, six angles and angle iron. The latter includes rail, I-beam, channel steel, window frame steel and special-shaped steel.
Q: Can steel flat bars be used for making construction equipment or vehicles?
Yes, steel flat bars can be used for making construction equipment or vehicles. Steel flat bars are commonly used in the manufacturing of heavy-duty machinery and vehicles due to their high strength, durability, and resistance to wear and tear. They provide structural support and can be shaped or welded to meet specific design requirements.
Q: Hot dip galvanized flat steel specification 40X4, 60X6 meaning?
Hello Hot galvanized flat steel specification 40* 4 stands for flat steel with a height of 40 mm and a thickness of 4 mm60* 6 stands for flat steel with a height of 60 mm and a thickness of 6 mm..
Q: Can steel flat bars be used for making power tools?
Power tools can definitely be made using steel flat bars. Steel, known for its robustness and endurance, is frequently employed in the production of power tools due to its strength and capacity to endure high temperatures and heavy loads. The flatness of the bars permits effortless shaping and cutting, rendering them appropriate for various power tool parts, including blades, handles, and frames. Furthermore, steel flat bars can undergo additional processing techniques like heat treatment or coating to enhance their performance and resistance against wear and corrosion. In conclusion, steel flat bars are a versatile material that can be effectively employed in the manufacturing of power tools.
Q: What are the different types of surface finishes for galvanized steel flat bars?
Various surface coatings can be applied to galvanized steel flat bars to improve their appearance, durability, and resistance to corrosion. Below are several types of surface finishes commonly used for galvanized steel flat bars: 1. Smooth Finish: This basic surface finish involves a polished appearance without any additional coatings or treatments. 2. Powder Coating: This popular option involves electrostatically applying a dry powder to the galvanized steel flat bar and then curing it under heat. It creates a durable, high-quality finish available in various colors and textures. 3. Paint Coating: Similar to powder coating, this finish involves applying liquid paint to the galvanized steel flat bar. It offers a wide variety of colors and finishes, but may not be as durable as powder coating. 4. Anodizing: Although commonly used for aluminum, anodizing can also be applied to galvanized steel flat bars. It creates an oxide layer on the metal's surface, improving corrosion resistance and providing a decorative finish. 5. Hot-Dip Galvanizing: Galvanized steel flat bars already have a zinc coating through this process, but additional coatings can be applied for improved appearance or added protection. These coatings may include paints, epoxy, or polyester-based coatings. 6. Passivation: Passivation is a chemical treatment that removes free iron and contaminants from the surface of galvanized steel flat bars. It enhances the steel's corrosion resistance and can be followed by the application of a protective coating. 7. Chrome Plating: This finish involves depositing a thin layer of chromium onto the galvanized steel flat bar's surface. It provides a shiny, reflective appearance and enhances the metal's corrosion resistance. It is crucial to consider the specific requirements of your application and consult professionals to determine the most suitable surface finish for galvanized steel flat bars.
Q: What are the different surface treatments available for steel flat bars?
There are several different surface treatments available for steel flat bars, each providing unique advantages and characteristics. Some of the common surface treatments for steel flat bars include: 1. Hot-dip galvanizing: This process involves immersing the steel flat bar in a bath of molten zinc, which creates a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance, making it suitable for outdoor applications where the steel may be exposed to moisture or harsh environmental conditions. 2. Electroplating: Electroplating involves depositing a thin layer of metal onto the surface of the steel flat bar through an electrochemical process. This treatment can be used to enhance the appearance of the steel, improve corrosion resistance, or provide other desired properties, depending on the metal used for plating. 3. Powder coating: Powder coating is a dry finishing process where a fine powder is applied to the steel flat bar electrostatically and then cured under heat. This treatment creates a durable and attractive surface that is resistant to chipping, scratching, and fading. Powder coating is available in a wide range of colors and textures, allowing for customization and versatility. 4. Paint coating: Steel flat bars can be coated with various types of paints to improve aesthetics, provide corrosion protection, or enhance other properties. Different types of paint coatings, such as epoxy, enamel, or polyurethane, can be used depending on the specific requirements and desired appearance. 5. Shot blasting: Shot blasting involves propelling abrasive particles at high speed onto the surface of the steel flat bar to remove rust, scale, and other contaminants. This treatment helps to improve the adhesion of subsequent coatings, such as paints or galvanizing, and provides a clean, smooth surface. 6. Passivation: Passivation is a chemical treatment that removes surface contaminants and forms a protective oxide layer on the steel flat bar. This treatment enhances the corrosion resistance of stainless steel flat bars, making them more suitable for applications where they may be exposed to corrosive environments. 7. Acid etching: Acid etching is a process that involves treating the surface of the steel flat bar with an acidic solution to create a textured or patterned finish. This treatment can be used for decorative purposes or to improve the grip of the steel in certain applications. It is important to consider the specific requirements of your application, such as corrosion resistance, appearance, durability, and cost, when selecting the most appropriate surface treatment for steel flat bars.
Q: Are steel flat bars corrosion resistant?
Steel flat bars are not inherently corrosion resistant. However, the level of corrosion resistance depends on the type of steel used and any additional treatments or coatings applied to the surface of the bars. Stainless steel flat bars, for example, are highly corrosion resistant due to the presence of chromium, which forms a protective oxide layer on the surface. On the other hand, carbon steel flat bars are more prone to corrosion, especially in environments with high moisture or exposure to corrosive substances. To enhance the corrosion resistance of carbon steel flat bars, they can be galvanized or coated with protective coatings like paint or epoxy. Overall, it is important to consider the specific type of steel and any additional treatments when assessing the corrosion resistance of steel flat bars.

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