Retangular And Square Steel Bar As Prime Material

Retangular And Square Steel Bar As Prime Material

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description

There are two types of Square Bar, one is hot rolled square bar and other one is cold drawn square bar. Our principal products is hot rolled square bar. We dedicate to products with material Q195 and Q235. We offer products with high quality and low price.

Specifications

-Standard: GB,

-Grade: Q195/Q235 or equivalent.

-Chemical Composition:

Standard	Grade	Element (%)
Standard	Grade	C	Mn	S	P	Si
GB	Q195	0.06~0.12	0.25~0.50	≤0.050	≤0.045	≤0.30
GB	Q235B	0.12~0.20	0.30~0.70	≤0.045	≤0.045	≤0.30

-Mechanical Properties:

Mechanical Properties	Grade	Steel diameter（mm）
Mechanical Properties	Grade	≤16	16~40	40~60	60~100
Yield Point Δs/MPa	Q195	≥195	≥185	-	-
Yield Point Δs/MPa	Q235	235	225	215	205
Tensile Strength	Q195	315~390
Tensile Strength	Q235	375~500
Elongation δ5%	Q195	≥33	≥32	-	-
Elongation δ5%	Q235	26	25	24	23

Measures (Big measures):

(Section of Hot-rolled Square Steel Bar)

-Length of a side and Theoretical weight of Square Bar (Big measures).

Length of a side(mm)	Theoretical weight(kg/m)	Length of a side(mm)	Theoretical weight(kg/m)
53	22.05	80	50.24
56	24.61	85	56.72
60	28.26	90	63.59
63	31.16	95	70.85
70	38.49	100	78.50
75	44.16

Notes:

1, The theoretical weights in the list, base on the density of 7.85 g/cm3.

2, Formula for theoretical weight of Square bar: a(length of a side) * a * 0.00785

3, The numbers with ＊mean that they are not regular or we don’t offer them.

-Regular length of Square Bar:

Steel	Length of a side (mm)	Length of steel (m)
Normal steel	< 25	4~10
Normal steel	> 25	3~9
Steel of high quality	All measure	2~6
Steel of high quality	Tool steel >75	1~6

Usage/Applications

-The Square Steel is normally used as structure steel.

-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…

-Row material for steel pipes.

Packaging & Delivery

-Packing Detail:

1, The products can be packed in bundles by steel wires.

2, The weight of each bundle no exceed normally 3 tons.

-Marks: We make tag marks and color marks for each bundle. The tag marks with white background and red company log will be tied up to each bundle. The information is usually including basic information of company and products like product name, specification, etc...and other information required by customers. As for color marks, we will paint both ends of each bundles to make sure that it will be more convenient for customers to distinguish theme from other products.

-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.

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.

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

3, Negotiable.

-The payment terms will be written in contraction detailed.

Q:Can a steel square be used for checking the alignment of shelving units?: Yes, a steel square can be used for checking the alignment of shelving units. A steel square, also known as a framing square or carpenter's square, is a versatile tool that is commonly used in carpentry and woodworking. It consists of a long steel blade with a perpendicular handle, forming a 90-degree angle. To check the alignment of shelving units, you can use a steel square in the following ways: 1. Checking for 90-degree angles: Place the steel square in the corner where two shelves meet. The inner corner of the square should align perfectly with the edges of the shelves. This ensures that the shelves are perpendicular and the corners are at 90-degree angles. 2. Checking for levelness: Position the steel square horizontally along the edge of the shelves. The top edge of the square should be parallel to the shelves. This will help you determine if the shelves are level and not sloping. 3. Checking for straightness: Place the steel square vertically along the front or back edge of the shelves. The outer edge of the square should align with the edge of the shelf from top to bottom. This will help you identify any irregularities in the straightness of the shelves. By using a steel square, you can ensure that your shelving units are properly aligned, level, and straight. This is important for both aesthetic reasons and functionality, as it allows for stability and ease of use.

Q:How do you use a steel square to check the flatness of a surface?: In order to check the flatness of a surface using a steel square, it is important to have a reliable and accurate steel square. This tool consists of a ruler-like blade and a perpendicular handle. Here is a step-by-step guide on how to proceed: 1. Make sure that both the surface you wish to check and the steel square are clean and free from any debris or dirt that could impact the accuracy of the measurement. 2. Position the steel square on the surface you want to check, ensuring that one edge of the square is aligned with the surface. 3. Examine the contact between the blade of the steel square and the surface. If the entire length of the blade is in contact with the surface without any gaps or daylight visible, it indicates that the surface is flat. 4. Move the steel square along different areas of the surface, examining for any inconsistencies. If you notice any gaps or daylight between the blade and the surface, it suggests that the surface is not flat in that specific area. 5. Pay attention to the gaps or daylight that you observe. If the gaps are consistently the same size, it may indicate that the surface has a slight bow or warp. However, if the gaps vary in size, it could suggest a more significant irregularity or unevenness in the surface. 6. Take note of any areas where the surface is not flat. This information can be useful in determining the extent of the flatness issue and planning any necessary corrective measures. Keep in mind that using a steel square is not a foolproof method for measuring flatness, especially for large surfaces. It is more suitable for smaller projects or initial assessments. For more precise measurements, specialized tools such as straight edges or laser levels may be required.

Q:How do you use a steel square to check for squareness?: Typically, when checking for squareness using a steel square, the following steps are followed: 1. Ensure that the steel square is securely and evenly placed on a flat surface, such as a workbench or table. 2. Align one edge of the steel square with the surface you want to assess for squareness. This could be the edge of a wooden piece, a wall, or any other object that should ideally form a perfect 90-degree angle. 3. Examine the corner where the two edges of the steel square intersect. If the object you are evaluating is square, the two edges should create a flawless 90-degree angle. 4. To guarantee accuracy, you may utilize a measuring tape or ruler to measure the distance between the two edges of the steel square at various points along the edges. If the object is square, the measurements should be equal. 5. Repeat these steps on different sides or corners of the object to ensure overall squareness. If the steel square consistently exhibits a perfect 90-degree angle, then the object is square. It is essential to note that while a steel square is a trustworthy tool for assessing squareness, it is vital to have a flat and even surface to obtain accurate results. Additionally, some steel squares may include additional features, such as a level or a lip, which can provide further assistance in checking for squareness.

Q:Can a steel square be used for checking the flatness of surfaces?: The flatness of surfaces can be checked using a steel square. This versatile tool is commonly utilized in woodworking and metalworking. It is comprised of a flat, straight edge and a perpendicular, right-angle edge that enables precise measurements and alignments. To assess surface flatness, simply place the steel square on the surface and observe its positioning. If the surface is completely flat, the square will maintain consistent contact along its entire length. Conversely, if the surface is uneven, you will notice gaps or inconsistent contact between the square and the surface. While using a steel square for flatness checks is a quick and straightforward method, it's important to acknowledge that it may not provide the same level of accuracy as specialized tools like a surface plate or straight edge ruler. For critical applications or highly precise measurements, it is advisable to employ more accurate instruments.

Q:What are some common uses of a steel square in metal fabrication?: The steel square, also referred to as a framing square or carpenter's square, is a tool of great versatility with numerous applications in metal fabrication. Below are some common uses: 1. Accurate Measurement and Marking: To achieve precise straight lines, the steel square, featuring a long blade and a shorter tongue meeting at a 90-degree angle, proves invaluable in measuring and marking with utmost accuracy. 2. Verification of Squareness: In metal fabrication, guaranteeing that corners and joints are perfectly square is of utmost importance to ensure structural integrity. The steel square serves as a reliable means to assess the squareness of components, ensuring proper alignment prior to welding or fastening. 3. Layout Tasks: In layout work, where precise measurements and marking are crucial, the steel square plays a prominent role. It aids in marking out angles, notches, or specific dimensions on metal pieces, ensuring consistency and accuracy. 4. Cutting and Sawing: When working with metal sheets or bars, the steel square can guide the saw or cutting tool, resulting in straight and precise cuts. It acts as a trusty guide, enabling fabricators to maintain straight lines and angles during cutting operations. 5. Assessment of Flatness: The steel square is an effective tool for verifying the flatness of metal surfaces. By placing the square against a surface, fabricators can identify any deviations or irregularities, ensuring that the metal is flat and suitable for further fabrication processes. 6. Verification of Diagonals: When fabricating structures like frames or supports, confirming their squareness is essential, and this is achieved by measuring the diagonals. The steel square simplifies this process, allowing fabricators to accurately measure the diagonals and ensure proper alignment of the structure. 7. Precise 45-Degree Cuts: With a 45-degree angle marked on its blade, the steel square enables fabricators to make accurate 45-degree cuts on metal pieces. This feature proves especially useful when creating mitre joints or other angled cuts. In conclusion, the steel square is an indispensable tool in metal fabrication, aiding in measurement, marking, layout work, squareness verification, cutting guidance, and flatness assessment. Its versatility and accuracy establish it as a staple tool for metal fabricators.

Q:Can a steel square be used for checking the alignment of ceiling tiles?: Yes, a steel square can be used for checking the alignment of ceiling tiles. A steel square is a versatile tool that is commonly used in carpentry and woodworking for measuring and marking right angles. Its straight edges and 90-degree angle make it suitable for ensuring the alignment and squareness of various objects, including ceiling tiles. By placing the steel square against the edges of the tiles, you can easily determine if they are properly aligned or if any adjustments need to be made. However, it's important to note that a steel square may not be the most convenient tool for larger areas or ceilings with a complex layout, as it is a handheld tool and may require multiple measurements. In such cases, a laser level or specialized tile alignment tools may be more efficient.

Q:Can a steel square be used for drawing straight lines?: Yes, a steel square can be used for drawing straight lines. The straight edges of the square can be aligned with the desired line, providing a straight and accurate guide for drawing.

Q:How do you use a steel square to find angles for compound bevel mitered corners?: To use a steel square to find angles for compound bevel mitered corners, you would start by measuring and marking the length of each side of the corner on the respective pieces of material. Then, place the steel square against one of the pieces with the 90-degree angle aligned with the edge. Next, adjust the square to align with the other piece by rotating it until the desired angle is achieved. Finally, mark the angle on both pieces using the square as a guide, and cut accordingly.

Q:Can a steel square be used for checking the flatness of a countertop?: No, a steel square is not designed or suitable for checking the flatness of a countertop. A steel square is primarily used for measuring angles and ensuring perpendicularity, not for determining the flatness of a surface. To check the flatness of a countertop, it is recommended to use a straightedge or a level, as these tools are specifically designed for this purpose.

Q:Are there any alternative tools to a steel square?: Yes, there are alternative tools to a steel square. Some common alternatives include a combination square, framing square, bevel square, and try square. Each of these tools has its own specific uses and advantages depending on the task at hand.

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