Steel Square Billet Chinese Standard Q195, Q235 and Q275

Steel Square Billet Chinese Standard Q195, Q235 and Q275 System 1

Steel Square Billet Chinese Standard Q195, Q235 and Q275

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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1. Structure of Steel Square Billet Description:

Square bars with firm sides is a bar with square shaped cross-section. It is special case of equal sides. Before steel products are sold on the market, the steel must first be processed into more functional pieces. Raw steel cannot be of use while in its pure form, thus it has to be cast into shape. The freshly made steel, square bars with firm sides is still in the form of a metal bar or rectangle. Small sizes of square bars with firm sides are used in ship building.

2. Main Features of Steel Square Billet:

• Grade: Q235

• Type: Mild carbon steel

• A quadrilateral with four equal sides and four right angles.

• Vibration: The stiffness and mass are chosen to prevent unacceptable vibrations, particularly in settings sensitive to vibrations, such as offices and libraries.

• Local yield: Caused by concentrated loads, such as at the beam's point of support.

3. Steel Square Billet Images:

Steel Square Billet Chinese Standard Q195, Q235 and Q275

4. Steel Square Billet Specification:

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

5. FAQ

We have organized several common questions for our clients，may help you sincerely:

①What is the main material？

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.

②How to inspect the quality？

We have a professional inspection group which belongs to our company. We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③Is there any advantage about this kind of product?

Steel I beam bar IPE has a reduced capacity in the transverse direction, and is also inefficient in carrying torsion, for which hollow structural sections are often preferred.

Q:How do you use a steel square to measure and mark 50.625-degree angles?: To use a steel square to measure and mark a 50.625-degree angle, follow these steps: 1. Start by confirming that your steel square has a protractor scale on one of its sides. This protractor scale is usually marked in degrees. 2. Place the steel square on a flat surface, ensuring that it is stable and not wobbling. 3. Locate the zero-degree mark on the protractor scale. This mark is typically positioned at one of the corners of the steel square. 4. Align the edge of the steel square with the line or surface on which you want to measure and mark the angle. 5. Look for the angle measurement that is closest to 50.625 degrees on the protractor scale. Since steel squares usually have graduations in whole degrees, you may need to estimate and approximate the desired angle. 6. Once you have identified the closest angle measurement, make a small mark on the line or surface at the corresponding point on the protractor scale. 7. Using a straightedge or ruler, draw a line from the mark you made to the desired endpoint of the angle. 8. This line represents the 50.625-degree angle you want to measure and mark. It's important to note that steel squares are not typically designed for measuring and marking precise angles with decimal places. They are more commonly used for right angles (90 degrees) or other common angles like 45 degrees or 30 degrees. If you require a highly accurate measurement of a 50.625-degree angle, you may need to use a different measuring tool, such as a protractor or a digital angle gauge.

Q:How do you use a steel square to lay out a diagonal line on a curved surface?: To use a steel square to lay out a diagonal line on a curved surface, you need to follow a few steps: 1. Start by placing the steel square on the curved surface with one edge aligned horizontally and the other edge aligned vertically. Make sure the square is securely positioned and doesn't move. 2. Identify the starting point of the diagonal line on the curved surface. This could be any point on the curve where you want the line to begin. 3. Next, locate the diagonal measurement you want to use on the steel square. This measurement will determine the length and angle of the diagonal line you're going to lay out. 4. Align the chosen diagonal measurement on the vertical edge of the steel square with the starting point of the line on the curved surface. You can use a pencil or marker to mark this point for reference. 5. Rotate the steel square along the curved surface, maintaining the alignment between the vertical edge of the square and the marked starting point. As you rotate, the horizontal edge of the square will trace a diagonal line on the curved surface. 6. Continue rotating the square until you reach the desired end point of the diagonal line. As you rotate, the horizontal edge will continue to mark the line on the curved surface. 7. Once you've reached the end point, use a pencil or marker to mark the line on the curved surface, following the path traced by the horizontal edge of the steel square. By following these steps, you can effectively use a steel square to lay out a diagonal line on a curved surface. It's important to ensure the square remains firmly in place throughout the process to maintain accuracy.

Q:How do you use a steel square to ensure the correct angle for a finger joint?: For ensuring the correct angle of a finger joint using a steel square, follow these steps: 1. Get the materials: You will require a steel square, a pencil or marking tool, and the wooden pieces you will join together. 2. Mark the wood: Utilize the pencil or marking tool to create a reference line on each wooden piece where the finger joint will be positioned. This line will assist in aligning the steel square accurately. 3. Position the steel square: Place the steel square against the edge of one wooden piece, ensuring that the reference line aligns with one of the square's edges. Make sure the square is securely held and flush against the wood. 4. Mark the angle: With the steel square in position, employ the square's edge to mark the angle on the wood. This will assist in cutting the joint precisely. 5. Repeat for the other piece: After marking the angle on one wooden piece, repeat the process for the other piece by aligning the steel square with the reference line on the second piece and marking the angle. 6. Verify the angles: Before cutting the joint, verify that the angles marked on both wooden pieces match each other. This ensures a proper fit when joining the two pieces together. 7. Cut the joint: Carefully cut along the marked angles using a saw or suitable cutting tool to create the finger joint. Take your time and make accurate cuts to achieve a tight and precise joint. Remember to practice and be precise when using a steel square for finger joints. Take your time, measure accurately, and ensure to follow safety precautions when working with cutting tools.

Q:Can a steel square be used for deck stair layout and construction?: Yes, a steel square can definitely be used for deck stair layout and construction. Steel squares are versatile tools that can be used to accurately measure and mark angles, lengths, and dimensions, making them suitable for laying out and constructing deck stairs. They provide precise measurements and angles, ensuring that the stairs are built correctly and safely.

Q:Can a steel square be used for checking the alignment of fences?: Yes, a steel square can be used for checking the alignment of fences.

Q:How do you use a steel square to measure the height of a shelf?: In order to measure the height of a shelf using a steel square, it is necessary to confirm that the shelf is level and perpendicular to the floor. Begin by placing the steel square vertically against the side of the shelf, aligning one edge of the square with the bottom of the shelf. Maintain a steady grip on the square and extend it upwards until the other edge of the square meets the top of the shelf. It is important to ensure that the square remains perfectly vertical and is not tilted in any direction. Once the square is properly positioned, observe the markings on the vertical side of the square. These markings correspond to measurements in inches or centimeters. Identify the marking that aligns with the top of the shelf. The measurement indicated by this marking represents the height of the shelf. Make a note of this measurement or utilize a pencil to mark it on the side of the shelf for future reference, if necessary. By employing a steel square, a precise and accurate measurement is attained, thereby guaranteeing the correct measurement of the shelf's height.

Q:How do you determine the center of a circle using a steel square?: A steel square cannot be used to determine the center of a circle. The center of a circle can be determined by using different methods such as finding the midpoint of the diameter or by drawing perpendicular bisectors of chords within the circle.

Q:How do you use a steel square to lay out a sliding dovetail joint?: To lay out a sliding dovetail joint using a steel square, follow these instructions: 1. Begin by marking the centerline of both the sliding dovetail socket and the sliding dovetail tail on your workpiece. You can accomplish this task by using a marking gauge or a sharp pencil. 2. Align the steel square with the centerline mark, placing it against the edge of the tail piece. Ensure that the long side of the square runs parallel to the workpiece edge. 3. Use a sharp knife or a pencil to mark the shoulder line on the tail piece. This shoulder line represents the depth of the dovetail socket. 4. Similarly, align the steel square with the centerline mark, this time against the edge of the socket piece. Again, ensure that the long side of the square is parallel to the workpiece edge. 5. Mark the shoulder line on the socket piece, making sure it aligns with the previously marked line on the tail piece. 6. Now, using the square, proceed to mark the angled sides of the dovetail on both the socket and tail pieces. Place the square on the tail piece's edge, aligning it with the shoulder line. Then, draw lines along both edges of the square to create the angled sides of the dovetail. 7. Repeat the same process on the socket piece, aligning the square with the shoulder line and marking the angled sides of the dovetail. 8. Once you have marked the socket and tail pieces, you can proceed to cut the dovetail joint. Depending on your preference and the available tools, you can use a saw, chisel, or router. Remember to take your time and carefully double-check all measurements and markings before making any cuts. This will ensure a precise and tight-fitting sliding dovetail joint.

Q:How do you hold a steel square properly?: To achieve proper grip and control of a steel square, adhere to the following instructions: 1. Begin by firmly grasping the handle of the steel square with your dominant hand, ensuring that your fingers envelop the handle for a secure hold. 2. Place your thumb on the top section of the handle, allowing it to rest against the steel blade. This action will provide supplementary stability and control while clutching the square. 3. Position your non-dominant hand on the opposite end of the steel blade, near the corner. Utilize your thumb and fingers to securely hold the blade in place. 4. Verify that the steel square is parallel to your body, with the blade facing away from you. This particular orientation will enable precise measurements and markings. 5. When utilizing the steel square, exert firm pressure on the blade against the surface or material you are working on. This will aid in maintaining stability and prevent any movement that might compromise measurement accuracy. 6. Always ensure that your fingers remain clear of the blade's edge to prevent any potential accidents or injuries. Be mindful of the placement of your fingers as you proceed with your work. 7. Lastly, maintain a comfortable and well-balanced stance while clutching the steel square. This will enhance your control and accuracy when using it for measuring or marking purposes. By adhering to these guidelines, you can guarantee the correct handling of a steel square, enabling efficient and precise work in various woodworking, metalworking, or construction endeavors.

Q:Can a steel square be used for checking the alignment of wall frames?: Yes, a steel square can be used for checking the alignment of wall frames. A steel square, also known as a framing square or a carpenter's square, is a versatile tool commonly used in construction and woodworking. It consists of a long arm and a shorter arm that meet at a right angle, forming an "L" shape. When checking the alignment of wall frames, a steel square can be used to ensure that the corners are perfectly square. By placing the shorter arm against one side of the frame and the longer arm against the adjacent side, you can verify if the angle is 90 degrees or if any adjustments need to be made. Additionally, a steel square can be used to measure and mark straight lines, check for straightness, and determine the levelness of surfaces. It is a reliable and accurate tool that is commonly used by carpenters, builders, and framers for a variety of construction tasks. Overall, a steel square is an essential tool for checking the alignment of wall frames due to its versatility, accuracy, and ability to determine right angles.

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