Hot rolled steel bar

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Product Description

The Detail of Product

Name:	steel billets
LENGTH:	6 meter to 12 meter (+ 50mm)
Size:	100100, 120120, 150150, 200200
Grade:	3SP,5SP,Q235,20MnSi.
Shape:	Square, Round
Technique:	Hot-Rolled
Standard:	ASTM/GB
BENDING	No more than 5mm in 1 meter No more than 30mm in 6 meter No more than 60mm in 12 meter
ANGULAR TWIST	No more than 1 degree per meter and not more than 6 degree over 12 meter length.
Chemical composition	C, Si, Mn, P, S, N, etc

Chemical Properties

Size	6060/9090/100100/120120/150*150
Length	6000mm-12000mm
Standard	GB
Applicaton	To produce bars or other applications
Grade	Q195/Q235/Q275/3SP/5SP/20MnSi
Packing terms	TT/LC
Package	Mill's standard packing or as client's requirment
Delivery time	Within 10-30 days after receiving the deposit or LC

Chemical Comosition

Standard	C(%)	Mn(%)	S(%)	P(%)	Si(%)
Q195	≤0.12	≤0.50	≤0.040	≤0.035	≤0.30
Q235	≤0.20	≤1.40	≤0.045	≤0.045	≤0.35
Q275	≤0.22	≤1.50	≤0.045	≤0.045	≤0.35
20MnSi	0.17-0.25	1.2-1.6	≤ 0.050	≤ 0.050	0.40-0.80
3SP	0.14-0.22	0.40-0.85	≤ 0.050	≤ 0.040	0.05-0.15
5SP	0.28-0.37	0.50-1.00	≤ 0.050	≤ 0.040	0.15-0.30

Q: What is the difference between a steel square and a framing square?: A steel square and a framing square are both useful tools in carpentry and construction, but they have some key differences. A steel square, also known as a carpenter's square or a framing square, is a versatile measuring and marking tool. It is typically made of steel and consists of two arms, one longer and one shorter, joined at a right angle. The longer arm is called the blade, and the shorter arm is called the tongue. The steel square usually has a series of measurements and markings along its edges to aid in accurate measurements and layout. On the other hand, a framing square is a specific type of steel square that is primarily used in framing and layout work. It is also made of steel and features the same right-angle design as a standard steel square. However, a framing square has additional features that make it more suitable for framing tasks. It typically has a wider blade and tongue, allowing for more accurate and stable measurements and cuts. The wider blade is often graduated with measurements and markings specific to framing, such as rafter lengths, roof pitches, and stair layouts. In summary, while both a steel square and a framing square are made of steel and have a right-angle design, a framing square is a specialized type of steel square specifically designed for framing tasks. It has a wider blade and tongue and is typically graduated with measurements and markings specific to framing work.

Q: Can a steel square be used for checking the plumbness of a support post?: No, a steel square is not typically used for checking the plumbness of a support post. A steel square, also known as a framing square, is primarily used in carpentry and woodworking for measuring angles and making square cuts. It consists of a long arm and a shorter arm that meet at a right angle, forming an "L" shape. To check the plumbness of a support post, a level is the more appropriate tool. A level is specifically designed for ensuring vertical alignment and determining if an object is perfectly plumb. It typically consists of a long, straight body with a bubble vial filled with liquid and an air bubble. When the bubble is centered between the two lines in the vial, it indicates that the object is perfectly vertical or plumb. Using a steel square to check the plumbness of a support post may not provide accurate results, as it is not specifically designed for that purpose. It is always recommended to use the appropriate tools for the task at hand to ensure accurate measurements and results.

Q: How do you use a steel square to determine the angle of a roundover cut?: To use a steel square to determine the angle of a roundover cut, you can follow these steps: 1. Start by placing the steel square against the edge of the workpiece where you want to make the roundover cut. Ensure that the square is aligned perpendicular to the edge. 2. Next, locate the corner of the square that aligns with the edge of the workpiece. This will be the reference point for measuring the angle. 3. Take a protractor and place it on top of the steel square, ensuring that its center aligns with the reference corner. 4. Now, observe the angle measurement on the protractor where the edge of the workpiece intersects it. This will give you the angle of the roundover cut. 5. Once you have determined the angle, you can transfer it to your woodworking tool, such as a router or table saw, to set the appropriate cutting angle. Remember, it is crucial to double-check your measurements and alignment before making any cuts to ensure accuracy. Additionally, practice caution and follow proper safety procedures while working with power tools.

Q: Can a steel square be used for checking the squareness of a bandsaw table?: Yes, a steel square can be used for checking the squareness of a bandsaw table. A steel square is a tool with a right angle shape, typically made of steel, and is commonly used for measuring and checking the squareness of various woodworking and metalworking tools, including bandsaw tables. To check the squareness of a bandsaw table using a steel square, you would place the square against the table's surface and ensure that it is flush against both the front and side edges. By doing so, you can visually inspect if the table is perfectly square or if there is any deviation. If the table is perfectly square, the square's edges will align perfectly with the table's edges. However, if there is a gap or overlap between the square and the table's edges, it indicates that the table is not square and adjustments may need to be made. It is important to note that while a steel square is a useful tool for checking squareness, it is always a good practice to use multiple measurement and checking methods to ensure accuracy. Additionally, following the manufacturer's instructions and guidelines for your specific bandsaw model is crucial when making any adjustments to the table's squareness.

Q: Can a steel square be used for checking the alignment of a window frame?: Indeed, the alignment of a window frame can be verified using a steel square. A steel square, a versatile tool frequently utilized in carpentry and woodworking, serves to establish right angles and guarantee precise measurements. By positioning the steel square against the window frame, one can effortlessly ascertain whether the frame is correctly aligned or necessitates any modifications. The steel square's straight edges and right angles enable meticulous measurements, ultimately guaranteeing the proper alignment of the window frame and yielding a well-fitted and operational window.

Q: What are the different parts of a steel square?: A steel square, also referred to as a framing square or carpenter's square, is composed of multiple essential components that contribute to its functionality. The primary elements of a steel square are as follows: 1. Blade: On one side of the square, there is a lengthy, flat metal surface known as the blade. It is typically inscribed with measurements and angles, enabling precise measurements and layout work. 2. Tongue: Located at the end of the blade, the tongue is a shorter segment of metal. Positioned perpendicular to the blade, it is commonly utilized to mark and measure short distances. 3. Heel: Positioned opposite to the tongue, the heel represents the wider end of the steel square. It serves as a stable platform and acts as a reference point for creating square cuts and angles. 4. Face: The face, which is perpendicular to both the blade and tongue, denotes the flat part of the square. It is commonly employed for drawing straight lines and verifying the squareness of corners. 5. Fence: Along the face of the square, there is an elevated edge called the fence. It aids in securely holding the square against the workpiece, ensuring accurate measurements and straight lines. 6. Graduations: The blade and face of the square exhibit markings or measurements referred to as graduations. These graduations facilitate precise measurements of distances, angles, and cuts. 7. Squaring and Angle Scales: Typically located on the face of the square, squaring and angle scales are employed to measure angles other than 90 degrees. They prove useful for marking angles, bevels, and intricate cuts. 8. Rafter Tables: Certain steel squares incorporate rafter tables, which are engraved charts or tables found on the blade. These tables provide information and calculations for various roof framing applications, such as determining rafter lengths and angles. In summary, the diverse components of a steel square collaboratively contribute to accuracy, stability, and versatility for various carpentry and layout tasks.

Q: How do you use a steel square to find angles for compound bevel cuts?: In order to find angles for compound bevel cuts using a steel square, it is necessary to follow a series of steps: 1. Comprehend the concept: Compound bevel cuts involve correctly setting two angles to achieve the desired cut. These angles are commonly known as the miter angle and the bevel angle. 2. Establish the miter angle: The miter angle determines the horizontal angle of the cut. To determine this angle, position the steel square against the workpiece's edge and align it with the desired miter angle. Ensure that the long edge of the square runs parallel to the edge of the workpiece. 3. Indicate the miter angle: Once the steel square is aligned, utilize a pencil or marking knife to mark the workpiece's edge, using the long edge of the square as a guide. This mark represents the miter angle for the compound bevel cut. 4. Ascertain the bevel angle: The bevel angle determines the vertical angle of the cut. To determine this angle, position the steel square against the workpiece's face and align it with the desired bevel angle. Guarantee that the short edge of the square is perpendicular to the workpiece's face. 5. Indicate the bevel angle: After aligning the steel square, employ a pencil or marking knife to mark the workpiece's face, using the short edge of the square as a guide. This mark represents the bevel angle for the compound bevel cut. 6. Adjust your tools: Once the miter and bevel angles are marked, it is now possible to adjust the tools accordingly. Depending on the type of compound bevel cut being made, it may be necessary to adjust the miter gauge on a table saw or the bevel angle on a compound miter saw. 7. Execute the cut: When the tools are properly adjusted, carefully position the workpiece according to the marked angles and proceed to make the compound bevel cut, ensuring that safety precautions are taken. Always bear in mind that practice and precision are crucial when handling compound bevel cuts. It is advisable to double-check the angles and make test cuts on scrap material before working on the final project.

Q: What are some common applications for a steel square in metalworking?: A steel square is a tool that is widely used in metalworking for various purposes. Metalworkers commonly rely on steel squares for a range of applications, including: 1. Accurate measurement and marking of angles: Steel squares are frequently employed to ensure precise measurements and markings of angles. With graduated scales on the blade and tongue, they enable accurate angle measurement and marking. 2. Verification of squareness: To check whether metal components have right angles or squareness, a steel square is an indispensable tool. It guarantees proper alignment and perpendicularity of corners and joints. 3. Layout and marking tasks: Steel squares are extensively utilized for laying out and marking metal components. They provide a straight edge for drawing lines, marking points, and transferring measurements onto the workpiece. 4. Assessment of flatness: Steel squares can also be used to assess the flatness of metal surfaces. By placing the square on the surface, any gaps or deviations from flatness can be easily detected. 5. Machinery setup: In metalworking workshops, steel squares are often employed for setting up machinery and equipment. Operators rely on squares to ensure alignment and levelness of machines, workbenches, and other tools. 6. Welding and fabrication: Steel squares are invaluable for welding and fabrication tasks. They enable precise positioning and alignment of metal components during welding, ensuring proper fit and alignment. 7. Creation of right angles and miters: Metalworkers commonly use steel squares to create right angles and miters in their projects. Steel squares provide a reliable reference for cutting, joining, and assembling metal parts. 8. Layout and cutting of sheet metal: Steel squares prove particularly useful in the layout and cutting of sheet metal. They facilitate the drawing and marking of straight lines for accurate cutting, folding, or bending of sheet metal. In summary, steel squares are indispensable tools in metalworking that enable precise measurements, layout, alignment, and fabrication of metal components. Their versatility and accuracy make them essential for both professional metalworkers and DIY enthusiasts.

Q: How do you use a steel square for marking stair baluster spacing?: To use a steel square for marking stair baluster spacing, you will need to follow a few simple steps. 1. Start by measuring the width of the baluster you plan to use. This will determine the spacing between each baluster. 2. Once you have the width measurement, transfer that measurement to the steel square. Locate the edge of the square that corresponds to the width of the baluster. 3. Position the square on the handrail or the bottom rail of the stair railing, depending on where you want to mark the baluster spacing. Align the edge of the square with the starting point and make sure it is parallel to the rail. 4. Using a pencil or a marker, mark the rail at the other edge of the steel square. This will indicate the first baluster placement. 5. Slide the square along the rail, aligning the edge with the previous mark, and repeat the marking process until you have marked the desired number of baluster placements. 6. Double-check your markings to ensure they are evenly spaced and aligned properly. 7. Once all the marks are made, you can proceed with installing the balusters according to the marked locations. Using a steel square for marking stair baluster spacing provides a reliable and consistent method to ensure accurate placement. It helps maintain uniformity throughout the railing, resulting in a visually appealing finished product.

Q: Can a steel square be used for framing?: Yes, a steel square can be used for framing. Steel squares are commonly used in construction and carpentry for measuring, marking, and aligning angles and lengths, making them a versatile tool for framing projects.

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