Hot Rolled Square Steel Bars 6mm-150mm System 1

Hot Rolled Square Steel Bars 6mm-150mm

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 100000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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 of Hot-rolled Square Steel Bar:

-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 of Hot-rolled Square Steel Bar (Big measures):

Section of Square Bar.

(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 of Hot-rolled Square Steel Bar:

-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 of Hot-rolled Square Steel Bar:

-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 detailedly.

Photos of Hot-rolled Square Steel Bar:

Square Bar.

We sincerely welcome partners around the world to establish business cooperation with us on the basis of mutual trust, benefit and development.

Q: Can a steel square be used for marking straight lines?: Yes, a steel square can be used for marking straight lines. A steel square, also known as a framing square or a carpenter's square, is a versatile tool used in carpentry and other trades. It consists of a long metal blade with measurements and angles marked on it, and a shorter perpendicular metal tongue. One of the primary functions of a steel square is to ensure the accuracy of right angles, but it can also be used to draw or mark straight lines. To use a steel square for marking a straight line, you can position the blade or tongue against the edge of the material you want to mark, ensuring it is aligned properly. Then, using a pencil or a marking tool, you can trace along the edge of the steel square, creating a straight line. By utilizing the straight edges and precise measurements of a steel square, you can accurately mark straight lines on various materials, such as wood, metal, or plastic. However, it is important to note that while a steel square can be used for marking straight lines, it may not be as convenient or efficient as other tools specifically designed for this purpose, such as a ruler or a straightedge. The large size and weight of a steel square can make it cumbersome for small or intricate markings. Additionally, if the material you are working with is not flat or has irregular edges, it may be more challenging to achieve a perfectly straight line using a steel square alone. In conclusion, while a steel square can be used for marking straight lines, it is generally recommended to use it for checking right angles and utilizing specialized tools for precise and efficient marking of straight lines.

Q: How do you determine if a steel square is square?: To determine if a steel square is square, you can use a few methods. Firstly, you can visually inspect the square by placing it against a straight edge or surface and checking if all sides and angles are perfectly perpendicular. Additionally, you can use a precision measuring tool like a caliper or micrometer to measure the sides and angles of the square, ensuring they are equal and at right angles. A more accurate method involves using a surface plate or a flat reference surface to check if the square lays flat and doesn't rock or wobble. Finally, you can perform a test by drawing lines at right angles on a piece of paper or a flat surface using the steel square, and then measuring the angles formed by the lines using a protractor or angle measuring tool.

Q: What are some common techniques for using a steel square in box making?: Using a steel square in box making is an essential tool that can help ensure accuracy and precision in the construction process. Here are some common techniques for utilizing a steel square in box making: 1. Checking for squareness: One of the primary uses of a steel square is to determine whether the box's corners are perfectly square. To do this, place the steel square against one corner of the box, ensuring it is aligned properly. Then, observe if the square's edge lines up with the adjacent edges of the box. If they align perfectly, the corner is square. If not, adjustments can be made to achieve squareness. 2. Marking and measuring: A steel square often includes various measurements and angles marked on its surface. These markings can be used to measure and mark precise dimensions on the box's material. By aligning the square's edge with the material's edge or corner, measurements can be accurately transferred, ensuring precise cuts and joins. 3. Determining angles: Steel squares often feature angles such as 90 degrees, 45 degrees, and 30 degrees marked on their surfaces. These angles can be utilized to determine and mark angles required for box construction, such as mitered corners or bevel cuts. Simply align the appropriate angle marking with the material edge to accurately transfer the desired angle. 4. Supporting assembly: During box assembly, a steel square can assist in holding the pieces in place while securing them together. By placing the square against the edges or corners, it can act as a support to ensure the proper alignment and squareness of the pieces being joined. This is particularly useful when using clamps or fasteners to hold the box together. 5. Checking for flatness: In addition to squareness, a steel square can also be used to check for flatness. By placing the square's edge against the surface of the box, any gaps or irregularities can be identified. This technique helps ensure that the box's sides and top are perfectly flat, resulting in a more professional and aesthetically pleasing finish. By employing these common techniques, a steel square can greatly assist in the box making process, facilitating accuracy, squareness, and precision at various stages of construction.

Q: How do you use a steel square for creating parallel lines?: To use a steel square for creating parallel lines, follow these steps: 1. Start by placing the steel square on the surface or material where you want to create the parallel lines. 2. Ensure that one edge of the steel square is aligned with the reference point or edge where you want the parallel lines to begin. 3. Hold the steel square firmly in place to prevent any movement. 4. Using a pencil or a marking tool, make a mark or draw a line along the edge of the steel square. 5. Without moving the steel square, slide it along the surface or material while keeping the same edge aligned with the reference point. 6. Make another mark or draw another line along the edge of the steel square at the desired distance from the previous line. 7. Repeat this process for as many parallel lines as you need, always keeping the same edge of the steel square aligned with the reference point and marking along the other edge. By consistently aligning the steel square with the reference point and marking along its edges, you can create multiple parallel lines with accuracy and precision.

Q: How do you use a steel square for creating accurate box joints?: Achieving precise box joints using a steel square requires a step-by-step approach. Here is an effective way to utilize a steel square: 1. Begin by selecting the appropriate size of steel square for your project. Various sizes are available, so choose one that matches the dimensions of your box joints. 2. Measure and indicate the desired length of your box joint on the edges of the mating boards. Make sure the measurements are accurate and properly aligned. 3. Position the steel square against the edge of one of the boards, aligning the square's long side with the marked line for the box joint. Ensure a firm hold to prevent any movement. 4. Use a pencil or marking knife to trace along the edge of the long side of the steel square, marking the line onto the board. This creates an accurate reference line for the box joint. 5. Repeat this process on the second board, aligning the steel square's long side with the corresponding marked line. Both boards should have the same line marked for precise box joints. 6. Rotate the steel square by 90 degrees, aligning the short side with the marked line on the first board. Securely hold the square against the board. 7. Mark another line on the first board, following the edge of the short side of the steel square. This completes the box joint layout by creating a perpendicular reference line. 8. Repeat this process on the second board, using the same adjustment and alignment with the steel square as done on the first board. Both boards should have the same perpendicular line marked for accurate box joints. 9. With the accurately marked reference lines, proceed to cut the box joints using a saw or router, following the marked lines precisely. Always double-check measurements and ensure the steel square remains securely in place during the marking process. Attention to detail and accuracy are crucial for creating precise box joints with a steel square.

Q: Can a steel square be used for precision measuring?: Yes, a steel square can be used for precision measuring. Steel squares are durable and typically have accurate right angles, making them suitable for measuring and marking precise angles and distances in various applications.

Q: How do you use a steel square for creating precise corner spline joints?: To use a steel square for creating precise corner spline joints, you would first measure and mark the desired location for the joint on the wood. Next, place the steel square on the marked corner and align it with the adjacent edges of the wood. Use a pencil or a knife to trace along the edge of the square, creating a precise guideline for the joint. Repeat this process on the other piece of wood that will be joined. This guideline will help you accurately cut and align the splines, ensuring a precise and snug fit for the joint.

Q: How do you use a steel square to measure the width of a countertop?: To use a steel square to measure the width of a countertop, place one arm of the square flush against one edge of the countertop and extend the other arm across to the opposite edge. Ensure that the square is held firmly against the edges for an accurate measurement. Then, read the measurement markings on the square to determine the width of the countertop.

Q: Can a steel square be used for checking the squareness of shelf brackets?: Certainly! The squareness of shelf brackets can indeed be checked with the aid of a steel square. An incredibly versatile tool, the steel square is frequently employed in carpentry and woodworking to assess the precision of right angles. By positioning the steel square against the corner of the shelf bracket, one can ascertain whether it is impeccably square or necessitates any modifications. Additionally, the straight edge of the steel square may be utilized to verify the appropriate alignment of the bracket with the shelf or wall. All in all, the employment of a steel square proves to be a highly effective means of examining the squareness of shelf brackets.

Q: How does a steel square assist in determining the correct angle for a compound miter cut?: The steel square, which is also called a combination square, proves to be a versatile tool, serving as a helpful aid in determining the correct angle for a compound miter cut. When it comes to making a compound miter cut, it becomes imperative to measure and set the angles accurately for both the miter and bevel cuts. This is precisely where the steel square comes into play. Primarily, the steel square possesses a built-in protractor, allowing for the measurement and setting of the desired angle for the miter cut. In most cases, this protractor bears degree increments, facilitating the precise setting of angles. Moreover, the steel square boasts a ruler positioned along its edge, capable of measuring the workpiece's length and guaranteeing precise cuts. To ascertain the correct angle for a compound miter cut, the typical procedure involves setting the desired miter angle using the protractor on the steel square. Once the miter angle is established, one can employ the ruler to measure the workpiece's length and mark the intended cut line. Subsequently, after completing the miter cut, one would need to modify the bevel angle to generate the compound angle. Again, the steel square can be employed to accurately measure and set the bevel angle. By utilizing the steel square's protractor and ruler, one can ensure that the miter and bevel angles are precisely determined, resulting in accurate and neat compound miter cuts. This proves crucial for achieving tight joints and proper alignment when working on projects like furniture, cabinetry, or trim work.

Send your message to us

*Email

*TEL

*Quantity

*Unit