Squre Bar

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Payment Terms:: TT OR LC

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Product Description:

We offer Square Steel Bar with grade Q195 / Q235

Specifications of Square Steel Bar:

-Standard: GB,

-Grade: Q195/Q235 or equivalent.

Chemical Composition:

-Chemical Composition. Q195

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

-Chemical Composition. Q235

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

Measures and Tolerances of Square Steel Bar:

Section of Square Steel Bar.

(The section of Square Steel Bar)

-The length of a side and the theoretical weight of Square Steel.

Length of a side(a, mm)	Theoretical weight(kg/m)	Length of a side(a, mm)	Theoretical weight(kg/m)
6	0.283	32	8.04
7	0.385	＊33	8.55
8	0.502	34	9.07
9	0.636	＊35	9.62
10	0.785	36	10.17
11	0.950	38	11.24
12	1.13	40	12.56
13	1.33	42	13.85
14	1.54	45	15.90
15	1.77	48	18.09
16	2.01	50	19.63
17	2.27	53	22.05
18	2.54	＊55	23.6
19	2.82	56	24.61
20	3.14	＊58	26.4
21	3.46	60	28.26
22	3.80	63	31.16
＊23	4.15	＊65	33.17
24	4.52	＊68	36.3
25	4.91	79	38.49
26	5.30	75	44.16
＊27	5.72	80	50.24
28	6.15	85	56.72
＊29	6.60	90	63.59
30	7.06	95	70.85
＊31	7.54	100	78.50

Notes:

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

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

-The allowed tolerance of Square Steel:

Length of a side(mm)	Allowed Tolerance
Length of a side(mm)	Group1	Group2	Group3
5.5～7	±0.20	±0.30	±0.40
7～20	±0.25	±0.35	±0.40
20～30	±0.30	±0.40	±0.50
30～50	±0.40	±0.50	±0.60
60～80	±0.60	±0.70	±0.80
80～110	±0.90	±1.0	±1.1
110～150	±1.2	±1.3	±1.1
150～190	――	――	±2.0
190～250	――	――	±2.5

Usage/Applications of Steel Square 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…

Packaging & Delivery of Steel Square Bar:

-Packing Detail: The products can be packed in bundles by steel wires.

-Marks:

1, Tag marks: the tag marks will be tied up to each bundle of the products. The information is usually including supplier’s logo and name, product name, made in China, products’ specifications, the painted color and other information requested by customers.

2, Color marks: we will paint both ends of the bundles of these products to make sure that they are more evident. It’s will be more convenient for the customers to distinguish them at the destination port.

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

Transportation:

-The products can be delivered by bulk vessel or by container. As for container, products with the length of 6m will be loaded in 20’ container, with 9m or 12m, in 40’ container.

-The maximum quantity of loading of container is 25 tons.

-The products usually are transported to the nearest port from the production place.

Payment:

-Invoicing on theoretical weight or actual weight a s 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.

Q:Can a steel square be used for checking the squareness of table legs?: Indeed, one can utilize a steel square to verify the squareness of table legs. Boasting a multifaceted functionality, the steel square is a frequently employed instrument in the realms of carpentry and woodworking. Characterized by its 90-degree angle configuration, it facilitates a straightforward assessment of whether the table legs are perpendicular to the tabletop. Placing the steel square adjacent to the table leg and ensuring its impeccable alignment with both the vertical and horizontal sides enables one to ascertain the leg's squareness. This factor proves crucial in guaranteeing the table's stability and optimal operation.

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.

Q:How do you use a steel square to find the length of a board?: To find the length of a board using a steel square, follow these instructions: 1. Position the steel square against one end of the board, ensuring proper alignment with the edge. 2. Securely hold the steel square in place, ensuring it remains stationary throughout the measurements. 3. Examine the long side of the steel square, commonly referred to as the blade, which contains marked measurements. 4. Identify the inch markings on the blade and locate the line corresponding to the width of the board. For example, if the board is 6 inches wide, find the line labeled "6". 5. Once you have located the correct line, turn your attention to the short side of the steel square, known as the tongue, which also contains marked measurements. 6. Align the tongue with the edge of the board, ensuring a flush fit against the side. 7. While maintaining the steel square and tongue in position against the board, extend the blade along the length of the board. 8. Observe the measurement indicated on the blade where it aligns with the opposite end of the board. This measurement represents the length of the board. 9. Make a note of the measurement or use a pencil to mark it on the board for future reference. By utilizing a steel square in this manner, you can accurately ascertain the length of a board, providing you with essential information for your woodworking or construction project.

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, you would start by placing one arm of the square flush against one edge of the countertop. Ensure that the square is aligned perfectly perpendicular to the edge of the countertop. Then, extend the other arm of the square across the width of the countertop until it reaches the opposite edge. Take note of the measurement on the scale of the square where the edge of the countertop intersects with the other arm of the square. This measurement will indicate the width of the countertop. Make sure to hold the square firmly in place while taking the measurement to ensure accuracy.

Q:What are the common uses of steel square?: A steel square, also known as a framing square or carpenter's square, is a versatile tool commonly used in construction and woodworking. It has multiple uses, including: 1. Layout and marking: Steel squares are used to lay out and mark straight lines, angles, and squares on wood, metal, or other materials. They are particularly useful for marking angles and determining the accuracy of cuts. 2. Cutting and sawing: Steel squares are used as a guide for making straight and accurate cuts. They can be used as a fence for a circular saw or a guide for a hand saw to ensure precise cuts. 3. Measuring and checking: Steel squares have built-in measurements and markings that allow for accurate measurements of lengths, depths, and angles. They can be used to check the squareness of corners, the straightness of edges, and the levelness of surfaces. 4. Framing and layout: Steel squares are essential tools for framing and laying out structures. They can be used to mark and align studs, rafters, and other structural elements, ensuring that everything is square and properly aligned. 5. Joinery and woodworking: Steel squares are used in joinery and woodworking to mark and cut accurate joints, such as mortise and tenon joints or dovetail joints. They help ensure the precise alignment and fit of the joints, resulting in strong and well-constructed pieces. 6. Squaring and plumbing: Steel squares are used to check the plumbness and squareness of walls, doors, windows, and other structural components. They help ensure that everything is level and aligned correctly, avoiding potential problems in construction. Overall, the common uses of a steel square revolve around layout, marking, cutting, measuring, and checking in various construction and woodworking applications. It is a reliable and versatile tool that assists in achieving accuracy, precision, and quality in projects.

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 checking the squareness of a table saw miter gauge?: Yes, a steel square can be used for checking the squareness of a table saw miter gauge.

Q:What are some common applications for a steel square in woodworking?: A steel square, known also as a framing square or carpenter's square, is a crucial tool in woodworking, offering versatility and necessity. Its primary purpose is to guarantee precision and squareness in various woodworking tasks. Here are some common applications for a steel square: 1. Squareness check: One of the primary uses of a steel square involves examining the perfect squareness of a corner or joint. This ensures proper alignment in woodworking projects, preventing issues with stability or aesthetics. 2. Marking and measuring: The long blade and tongue of the square, combined with marked scales, enable precise measurement and marking of straight lines. It proves particularly useful for marking cut lines, angles, and notches, ensuring accuracy during cutting and shaping processes. 3. Angle determination: Steel squares often come equipped with angle scales, allowing accurate measurement and marking of different angles. This proves helpful when creating angled cuts, miter joints, or bevels on wooden pieces. 4. Staircase layout: A steel square is invaluable when building or repairing staircases, as it aids in marking the rise and run of each step. This ensures consistency and uniformity, resulting in safe and functional staircases. 5. Stock alignment check: Woodworkers commonly employ steel squares to verify the straightness and flatness of stock. By placing the square against the edge or face of a piece of wood, they can promptly detect irregularities and make necessary adjustments. 6. Saw blade alignment check: A steel square serves as a tool to check the alignment of a table saw blade or miter saw by placing it against the blade and the saw's fence. This ensures accurate and parallel cuts, minimizing waste and enhancing the overall quality of the workpiece. 7. Cutting guide: Steel squares can act as reliable cutting guides when used alongside circular saws or jigsaws. By clamping the square to the material, woodworkers can achieve straight and precise cuts along the square's edge. 8. Perpendicular line creation: Steel squares are ideal for drawing perpendicular lines on wood surfaces, especially when marking out mortises, tenons, or dowel holes. The square's 90-degree angle allows for precise alignment, ensuring proper squareness of the workpiece. In conclusion, a steel square is an indispensable woodworking tool used for checking squareness, marking and measuring, determining angles, laying out staircases, checking stock alignment, verifying saw blade alignment, acting as a cutting guide, and creating perpendicular lines. Its accuracy and versatility make it an essential tool for woodworkers of all skill levels.

Q:How do you use a steel square to measure and mark 101.25-degree angles?: In order to measure and mark a 101.25-degree angle using a steel square, the following steps should be followed: To begin, position the blade of the steel square, which is the long side, flat against the desired edge of the material. Ensure that the square is properly aligned and securely positioned against the edge. Next, locate the degree scale on the square. This scale is typically situated on the inside of the square near the corner where the blade and the tongue meet. Identify the 90-degree mark on the degree scale, which is usually the largest mark and represents a right angle. Align this mark with the edge of the material. Now, find the 0-degree mark on the scale, which is generally the starting point closest to the blade and signifies a straight angle. Align this mark with the edge of the material as well. Once the 90-degree mark and the 0-degree mark are aligned, proceed to locate the 101.25-degree mark on the scale. It may be necessary to estimate this position, as most steel squares do not have specific markings for angles beyond 90 degrees. Once the approximate position for 101.25 degrees is identified, make a small mark on the material at that point. To ensure accuracy, a pencil or scribe can be used. To verify the measurement, utilize the square to draw a line through the marked point. This line should form a 90-degree angle with the edge of the material. If the line is not perpendicular, it may be necessary to readjust the measurement and mark. Please keep in mind that measuring and marking angles beyond 90 degrees with a steel square may require estimation, and accuracy may vary. If available, it is advisable to use a protractor or angle measuring tool for more precise measurements.

Q:How do you use a steel square to lay out a half-lap joint?: In order to lay out a half-lap joint, the following materials are required: a steel square, a pencil or marking knife, and the pieces of wood that you want to join together. Begin by measuring the wood's thickness and deciding on the desired overlap between the two pieces in order to determine the size of the half-lap joint. Typically, the overlap ranges from one-third to one-half of the wood's thickness. Next, place the steel square on one of the wood pieces where you want the joint to be. Ensure that the square's blade and tongue align with the wood's edges. The blade should be against one face of the wood while the tongue extends along the adjacent face. Using a pencil or marking knife, mark a line on the wood along the square's blade. This line represents the depth of the half-lap joint. After marking the first wood piece, repeat the process on the second piece, making sure the marks align with those on the first piece. This guarantees a proper fit when the joint is assembled. Now, use the square to mark the joint's width. Place the square on the wood's edge, aligning the tongue with the previously marked depth line. With the square in place, use the blade as a guide to mark a line across the wood's face. Repeat this process on both wood pieces for accurate alignment. Finally, use a saw to cut along the marked lines, removing the excess material to create the half-lap joint. Be careful to stay within the marked lines, as they determine the final fit of the joint. Once the joint is cut, test the fit by joining the two pieces together. Make any necessary adjustments for a snug fit, and then use glue or appropriate fasteners to secure the joint. By following these steps and using a steel square as a guide, you can accurately lay out and create a strong and secure half-lap joint.

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