High Quality Mild Steel Flat Bar with Grade Q235

High Quality Mild Steel Flat Bar with Grade Q235 System 1

High Quality Mild Steel Flat Bar with Grade Q235

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Specification of Steel Flat Bar

Commodity: Carbon Steel Flat Bar

Standard: GB,JIS,ASTM,

Material: Q235,SS400 or Equivalent

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(%)

Q235

0.12—0.20

0.3—0.7

≤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

Above sheets show the technical data of Q235,we can also provide other materials similar to Q235.

Usage/Applications of 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 Steel Flat Bar

Packaging Details: The 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.

Q: How do you determine the ductility of a steel flat bar?: To ascertain the ductility of a steel flat bar, there are several methods available. One commonly employed technique is the tensile test. During a tensile test, a sample of the steel flat bar is subjected to progressively increasing force until it reaches its breaking point. The test gauges the extent of deformation or elongation the bar undergoes before fracturing. Ductility is determined by calculating the percentage of elongation or reduction in the sample's area. Another approach is the bend test, wherein the steel flat bar is bent to a specific angle without experiencing any fractures. The angle at which the bar can be bent without breaking serves as an indicator of its ductility. Furthermore, the impact test evaluates the steel flat bar's ability to absorb energy under abrupt loading conditions. This test entails striking the sample with a pendulum-like apparatus and analyzing the amount of energy it absorbs before fracture occurs. The greater the energy absorbed, the more ductile the material is considered to be. In conclusion, the ductility of a steel flat bar can be determined by conducting various tests, including the tensile test, bend test, and impact test. These tests offer valuable insights into the material's capacity to deform without fracturing, thereby providing an assessment of its ductility.

Q: Are steel flat bars suitable for marine or saltwater applications?: Steel flat bars are generally not suitable for marine or saltwater applications due to their susceptibility to corrosion. When exposed to saltwater or other corrosive environments, steel flat bars can quickly rust and deteriorate. This can compromise their structural integrity and make them unsuitable for use in marine environments, where they would be constantly exposed to saltwater. To ensure durability and longevity in saltwater applications, it is recommended to use materials specifically designed for marine environments, such as stainless steel or corrosion-resistant alloys.

Q: Can steel flat bars be threaded?: No, steel flat bars cannot be threaded as they do not have a hollow center like a pipe or a tube, which is necessary for threading.

Q: How do steel flat bars compare to other types of steel profiles?: Steel flat bars have several advantages compared to other types of steel profiles. Firstly, they have a flat surface that makes them ideal for applications where a smooth and even support is required. This characteristic also allows for easy welding, cutting, and shaping, making them versatile for various construction and manufacturing projects. Additionally, steel flat bars offer excellent strength and durability, making them suitable for structural purposes. They are also cost-effective and readily available, making them a popular choice in the industry. Overall, steel flat bars provide a great balance of strength, versatility, and affordability, making them a preferred option among other types of steel profiles.

Q: What is 40x4 galvanized flat steel, please?: Main application: galvanized flat steel is used as material, used for making iron, tools and machinery parts. It is used as frame, structure and escalator for building.

Q: Are steel flat bars available in different profiles?: Different profiles are available for steel flat bars, referring to their shape or design. Some common profiles include square edge, round edge, and chamfered edge. Square edge flat bars have sharp corners and straight edges, making them suitable for a variety of applications in construction, manufacturing, and fabrication. Round edge flat bars have rounded corners and edges, providing a smoother and safer finish. They are often used for architectural purposes or in industries where safety is a concern. Chamfered edge flat bars have beveled edges, giving them a more aesthetically pleasing appearance and making them easy to handle. These various profiles offer versatility and can be customized to meet specific project requirements.

Q: What is the surface area of flat steel 100*3 meters per metre?: 2X (0.1x1+0.003x1+0.1x0.003) =0.2066 with a surface area of 0.2066 square meters.Flat, refers to the width 12-300mm, thickness 4-60mm, cross section is rectangular in shape and with a blunt edge of steel.

Q: How do steel flat bars resist bending or twisting?: Steel flat bars are able to resist bending or twisting due to their inherent strength and rigidity. The material itself is strong and durable, capable of withstanding applied forces without easily deforming. The flat shape of the bar also plays a role in its resistance to bending or twisting by evenly distributing the forces across its width. To further enhance the resistance to bending or twisting, steel flat bars often have a rectangular or square cross-section. This cross-sectional shape provides greater stability compared to other shapes. The flat surfaces of the bar help distribute the bending or twisting forces evenly, preventing concentrated stress points that could result in deformation. Moreover, the manufacturing process of steel flat bars involves a high-temperature heating followed by rapid cooling, known as quenching and tempering. This process increases the strength and toughness of the steel, making it more resistant to bending or twisting. Additionally, the composition of the steel used in flat bars can also impact their resistance to bending or twisting. Alloying elements like carbon, manganese, and chromium can be added to enhance the strength and resistance to deformation. Overall, the combination of steel's inherent strength and rigidity, the flat shape of the bar, the cross-sectional design, and the manufacturing process all contribute to the ability of steel flat bars to resist bending or twisting.

Q: Are steel flat bars suitable for machining or drilling?: Steel flat bars are indeed suitable for machining and drilling. Steel is a strong and durable material that can be easily shaped, cut, and drilled into various forms. Flat bars, in particular, provide a stable and rigid surface for machining operations, allowing for precise and accurate cuts. With the right tools and techniques, steel flat bars can be easily drilled to create holes of different sizes and shapes. Whether it is for creating prototypes, constructing machinery, or any other application that requires precise shaping and drilling, steel flat bars are a reliable choice.

Q: What is the difference between hot rolled and cold rolled steel flat bars?: The main difference between hot rolled and cold rolled steel flat bars lies in the manufacturing process. Hot rolled steel flat bars are produced by heating a billet of steel above its recrystallization temperature and then rolling it into the desired shape. This process results in a rougher surface and slightly rounded edges. On the other hand, cold rolled steel flat bars are formed by passing the hot rolled bars through a series of rollers at room temperature, which gives them a smoother surface, tighter tolerances, and sharper edges. Additionally, cold rolled steel flat bars tend to have a higher strength and a more uniform thickness compared to hot rolled ones.

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