• high quality flat bar hot rolled GB Q235 3-30MM System 1
  • high quality flat bar hot rolled GB Q235 3-30MM System 2
  • high quality flat bar hot rolled GB Q235 3-30MM System 3
high quality flat bar hot rolled GB Q235 3-30MM

high quality flat bar hot rolled GB Q235 3-30MM

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
60000 m.t./month

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lat bar Details:

Minimum Order Quantity:
Unit:m.t.Loading Port:
Supply Ability:10000Payment Terms:
Package:Steel Packing

Product Description:

Product Description:

Specification of Mild Steel Flat Bar

Commodity: Mild Steel Flat Bar

Standard: GB;JIS

Material: Q195-235;SS400

Brand name: FLATSPACE

Origin place: China

Thickness: 3mm-30mm

Width:20mm-200mm

Length: Max 12m

Certification: SGS/BV

Chemical composition of Q235



Alloy No

Grade

Element(%)

C


Mn


S


P


Si



Q235



B



0.12—0.20


0.3—0.7


≤0.045


≤0.045



≤0.3



Physical properties of Q235

Alloy No

Grade

Yielding strength point(Mpa)

Tensile strength (Mpa)

Elongation after fracture(%)

Thickness (mm)

Thickness (mm)

≤16

>16--40

>40--60

>60--100


≤16

>16--40

>40--60

>60--100


Q235


B


235


225


215


205


375--500


26


25


24


23
















Usage/Applications of Mild Steel Flat Bar

Widely used for construction, Machinery manufacturing, Iron tower steel structure, Shipbuilding; Steel grating, Staircase, Bridge, Viaduct, Railway spare parts, Boilers making etc.

Packaging & Delivery of Mild Steel Flat Bar

Packaging Details: The Mild Steel Flat Bars are packed in bundles and loaded in 20 feet/40 feet container, or shipped by bulk cargo ,also we can do as customer's requirements.

Delivery Details:30~45 days upon the receipt of buyer payment by T.T. or L/C.

Production Flow of Mild Steel Flat Bar

The Mild steel flat bar is made through three processes:

1.Feeding the material: Feeding the row material (the steel plate) to Slitting Line.

2.Slitting:The steel plate would be slitted into expected width by lengthways cutter.

3. Leveled and cutting: The plat bar would be ground into level by the grinder and then cut into required length


Q:How are steel flat bars measured and specified?
Steel flat bars are typically measured and specified by their width, thickness, and length. The width refers to the measurement across the bar's broadest side, while the thickness indicates the measurement of the bar's narrowest side. The length specifies the overall size of the bar. These measurements are important for accurately determining the dimensions and specifications of steel flat bars, allowing for proper selection and use in various applications.
Q:What is the quota for the flat steel used in the lightning belt -40*4?
Set the lightning protection net, the main material is -40*4 galvanized flat steel, if you are using 12 yuan quota steel, also set the lightning protection network quota, but the material is converted into flats on the line,But now the lightning belt is usually 12 yuan steel,
Q:How do steel flat bars contribute to the strength and stability of structures?
Steel flat bars play a crucial role in enhancing the strength and stability of structures in multiple ways. To begin with, their flat shape allows for a wide surface area, facilitating the even distribution of loads. Consequently, they can effectively bear heavy weights and resist bending or warping, making them particularly suitable for load-bearing applications like beams, columns, and trusses. Furthermore, the high tensile strength of steel flat bars enables them to withstand significant tension without breaking. This characteristic is of utmost importance in structural design, ensuring their ability to endure forces that pull them apart, such as those arising from earthquakes or strong winds. Moreover, the rigid nature of steel flat bars acts as a deterrent against excessive deflection or movement within structures. By functioning as stiffening elements, they effectively minimize any undesired bending or sagging, thereby enhancing the overall stability of the structure. Additionally, steel flat bars exhibit exceptional durability and corrosion resistance, making them highly suitable for use in diverse environments and weather conditions. This longevity guarantees that structures constructed with steel flat bars will maintain their strength and stability over an extended period. In conclusion, the incorporation of steel flat bars in construction significantly contributes to the strength and stability of structures. Their ability to provide even load distribution, high tensile strength, resistance to deflection, and durability make them a reliable and indispensable component in building structures capable of withstanding various external forces while preserving their integrity for years to come.
Q:What are the different tolerances for steel flat bars?
The different tolerances for steel flat bars can vary depending on the specific application and industry standards. However, common tolerances for steel flat bars typically range from +/- 0.005 to +/- 0.030 inches for thickness and +/- 0.010 to +/- 0.050 inches for width. These tolerances ensure that the steel flat bars meet the required dimensional specifications and can be effectively used in various construction, manufacturing, and engineering applications.
Q:Can steel flat bars be welded or joined together?
Yes, steel flat bars can be welded or joined together using various welding techniques such as arc welding, MIG welding, or TIG welding.
Q:What are the weight calculations for steel flat bars?
The weight calculations for steel flat bars can vary depending on the dimensions and density of the steel used. However, a general formula to calculate the weight of a steel flat bar is: weight = width (in inches) x thickness (in inches) x length (in feet) x 3.403.
Q:Are steel flat bars resistant to chemical exposure?
Steel flat bars are generally resistant to chemical exposure. Steel is known for its durability and strength, making it resistant to many chemicals. However, the level of resistance can vary depending on the specific type of steel and the chemicals it is exposed to. Corrosion can occur if the steel is exposed to certain corrosive chemicals such as acids or alkalis. In such cases, it is advisable to use stainless steel flat bars which have an added layer of protection against corrosion. Additionally, the duration and concentration of the chemical exposure can also affect the steel's resistance. Taking proper precautions and regular maintenance can help prolong the lifespan of steel flat bars even in chemically exposed environments.
Q:What are the different types of coatings available for steel flat bars?
There are several types of coatings available for steel flat bars, including galvanized, powder coated, painted, and epoxy coated.
Q:What are the different methods of finishing the edges of steel flat bars?
There are several methods of finishing the edges of steel flat bars, including chamfering, rounding, bevelling, and deburring. Chamfering involves cutting or grinding a beveled edge on the corners of the bar to create a smoother finish. Rounding, on the other hand, involves removing sharp edges and creating a rounded profile for improved safety and aesthetics. Bevelling is a process of cutting or grinding an angled edge along the length of the bar to create a specific angle or to prepare it for welding. Lastly, deburring involves removing any sharp or rough edges left after the manufacturing process, resulting in a cleaner and safer edge.
Q:What are the different surface finishes for steel flat bars?
There are several different surface finishes for steel flat bars, including hot rolled, cold rolled, mill finish, brushed, and polished. Each finish offers a different appearance and level of smoothness, catering to various aesthetic and functional requirements.

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