High Quality GB Standard Steel Square Bar 32mm-36mm

High Quality GB Standard Steel Square Bar 32mm-36mm System 1

High Quality GB Standard Steel Square Bar 32mm-36mm

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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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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.

Q:Can a steel square be used for drywall corner installation?: Yes, a steel square can be used for drywall corner installation. A steel square is a versatile tool that is commonly used in carpentry and can also be utilized for various tasks in drywall installation, including marking and cutting corners. By using a steel square, you can ensure accurate and precise measurements, which is crucial for achieving seamless and professional-looking corners in drywall installation.

Q:How do you use a steel square to determine rafter lengths?: To use a steel square to determine rafter lengths, you first need to understand the different markings and measurements on the steel square. There are two main parts of a steel square: the body and the tongue. The body of the steel square is the longer side, usually about 24 inches in length. It has multiple markings and numbers along its edge. The tongue is the shorter side, usually about 16 inches in length, and it is perpendicular to the body. To determine rafter lengths, follow these steps: 1. Start by placing the steel square on the rafter stock with the body against the edge of the board and the tongue extending over the top surface. 2. Align the tongue with the desired pitch or roof slope angle. The pitch is typically measured in inches per foot. For example, a 6/12 pitch means a rise of 6 inches for every 12 inches of run. 3. Once the tongue is aligned with the desired pitch, mark the point where the body intersects the edge of the rafter stock. This point represents the plumb cut or the top of the rafter. 4. Next, slide the steel square along the edge of the rafter stock until the desired rafter length is achieved. The rafter length is measured from the plumb cut to the desired run, which is the horizontal distance the rafter will span. 5. Mark the point where the body intersects the edge of the rafter stock. This point represents the bird's mouth or the bottom of the rafter, where it will sit on the wall plate. 6. Finally, connect the two marked points with a straight line to determine the plumb cut and bird's mouth on the rafter. By using the steel square in this manner, you can accurately determine the lengths and cuts for rafters based on the desired pitch and run of the roof. This method ensures that the rafters will fit properly and provide the necessary structural support for the roof.

Q:Can a steel square be used for checking the alignment of a door frame?: Yes, a steel square can be used for checking the alignment of a door frame. It can be used to ensure that the corners of the door frame are square and that the sides are perpendicular.

Q:What are some common applications for a steel square in plumbing installations?: A steel square, which is also referred to as a framing square or carpenter's square, possesses a wide range of applications within plumbing installations. Here are several typical uses for a steel square in plumbing: 1. Angle determination: To accurately measure and designate angles, a steel square can be employed. This proves particularly advantageous in plumbing installations that require pipes to be cut and connected at specific angles, such as water supply lines or drain systems. 2. Corner squaring: Plumbing systems frequently necessitate the connection of pipes at right angles. A steel square can be utilized to ensure that corners are perfectly squared, a crucial aspect for leak-free connections and proper water flow. 3. Level and plumb checking: Plumbers utilize a steel square to verify whether pipes or fixtures are level and plumb. This is significant in guaranteeing the effectiveness of drainage systems and the proper alignment of fixtures such as sinks or toilets. 4. Pipe run layout: Steel squares can be employed to lay out the course of pipes, particularly in intricate plumbing systems. By using the square to mark measurements and angles on the floor or walls, plumbers can accurately plan and install pipes in the desired configuration. 5. Measurement and marking: Steel squares possess markings along their edges that can be utilized to measure distances and make precise markings on materials. Plumbers can utilize these measurements to cut pipes to the correct length or align fixtures with precision. 6. Template creation: In certain plumbing installations, pipes with unique or irregular shapes must be cut. A steel square can be employed to create templates by tracing the required shape onto a piece of cardboard or plywood. This template can then serve as a guide during the cutting process. In summary, a steel square proves to be an invaluable tool for plumbers, ensuring accuracy, proper alignment, and efficient installation of plumbing systems. Its versatility and usefulness make it a staple in a plumber's toolkit.

Q:Can a steel square be used for deck railing layout and installation?: Indeed, deck railing layout and installation can be accomplished utilizing a steel square. Known by various names such as framing square or carpenter's square, a steel square is a versatile instrument commonly employed in construction and woodworking to measure and denote right angles. Comprising a lengthy blade with markings along its length and a shorter tongue perpendicular to the blade, it takes the form of an L-shape. When it comes to deck railing layout and installation, a steel square proves invaluable in guaranteeing precise measurements and angles. It facilitates the alignment of posts and balusters, ensuring their accurate placement and uniform spacing. The measurements on the blade enable the marking of exact locations for the railing components, while the right angle formed by the blade and tongue allows for the verification of squareness and alignment. Moreover, a steel square serves as a useful guide for cutting and shaping the railing components. Its straight edge can be employed to draw straight lines or guide a circular saw or jigsaw, enabling meticulous cuts. Additionally, the tongue of the steel square can function as a guide for marking and drilling holes in the railing components. All in all, a steel square is an indispensable tool for deck railing layout and installation. Its precision and adaptability render it ideal for ensuring accurate measurements, angles, and alignment throughout the construction process.

Q:Can a steel square be used for laying out foundations?: Indeed, the utilization of a steel square is feasible for the establishment of foundations. Termed as a framing square or carpenter's square, a steel square is a multifunctional apparatus regularly employed in construction for layout assignments. It comprises of two arms, with one longer arm and one shorter arm, forming a precise right angle. The longer arm is recognized as the blade, while the shorter arm is referred to as the tongue. Regarding the establishment of foundations, the application of a steel square is advantageous in guaranteeing that the corners are perpendicular and accurately aligned. It can be utilized to gauge and mark right angles, as well as to evaluate the alignment of walls and corners. Through the effective utilization of the blade and tongue of the steel square, builders can precisely measure distances and angles, thereby ensuring the proper layout of the foundation. Furthermore, a steel square also possesses the capability to perform a variety of additional layout tasks during foundation construction. It can be employed to generate straight lines, delineate parallel lines, and transfer measurements from one point to another. This tool is renowned for its exceptional precision and reliability, rendering it an indispensable instrument for builders and carpenters engaged in diverse construction activities, including foundation layout. To conclude, a steel square is an invaluable tool that can be effectively employed for the purpose of laying out foundations. Its capacity to measure right angles, accurately mark distances, and assess alignment makes it a versatile instrument for ensuring the correct layout of a foundation.

Q:How do you use a steel square for marking compound angles?: To mark compound angles using a steel square, follow these steps: 1. Determine the compound angle you want to mark, which is typically a combination of two angles (a bevel angle and a miter angle). 2. Place your steel square on a flat surface, ensuring proper alignment. 3. Find the bevel angle on the steel square, usually marked on the blade and measured in degrees. 4. Adjust the blade to the desired bevel angle by loosening the locking screw or mechanism, aligning the blade, and then tightening the mechanism. 5. Calculate the miter angle by subtracting the compound angle from 90 degrees (e.g., if the compound angle is 45 degrees, the miter angle is 90 - 45 = 45 degrees). 6. Locate the miter scale on the inside edge of the steel square, marked in degrees from 0 to 90 degrees. 7. Align the desired miter angle on the miter scale with the material's edge, ensuring a secure placement of the steel square against the material. 8. Use a pencil or marker to clearly mark the compound angle on the material. 9. Proceed with cutting or shaping the material according to the marked compound angle, using appropriate tools like a saw or chisel for your specific needs and material. Remember to practice and ensure precision when using a steel square for marking compound angles. Double-check your measurements and alignment before making any cuts or marks.

Q:How do you check the accuracy of a steel square?: To check the accuracy of a steel square, you can follow these steps: 1. Visual Inspection: Begin by examining the square visually for any obvious defects or signs of damage. Look for any visible bends, warps, or dents that could affect its accuracy. 2. Reference Edge: Identify the reference edge of the square. This is the long edge that is used as a reference for measuring and marking right angles. Ensure that this edge is straight and free from any irregularities. 3. Check for Squareness: To test squareness, place the square against a flat surface such as a table or a wall. Align the reference edge along the surface, making sure it is flush. Then, use a spirit level or a try square to check if the other edge of the square is perpendicular to the reference edge. If it is not perfectly square, the square may be inaccurate. 4. Measuring Accuracy: To verify the measuring accuracy of the square, use a tape measure or ruler to measure the length of both arms of the square. Ensure that both arms are equal in length and that the measurements match the stated dimensions of the square. Any significant discrepancies indicate inaccuracy. 5. Cross-checking: Another way to check accuracy is by using the square against a known straight edge. Place the square against the edge, aligning the reference edge with the straight edge. Then, mark a line with the square and flip it over, aligning the same reference edge with the straight edge again. If the marked lines do not align perfectly, the square may not be accurate. 6. Repeat the Tests: If you suspect any inaccuracies after the initial tests, repeat the above steps multiple times to ensure consistent results. It is also a good idea to test the square at various points along its length to identify any irregularities. 7. Calibration: If you discover any inaccuracies, it may be possible to adjust and calibrate the square. However, this depends on the design of the square and its adjustability features. Consult the manufacturer's instructions or seek professional help if necessary. By following these steps, you can effectively check the accuracy of a steel square and ensure that it provides reliable measurements and right angles for your woodworking or metalworking projects.

Q:How do you use a steel square for creating chamfered edges?: Before attempting to create chamfered edges using a steel square, it is important to have a clear understanding of what a chamfer is. A chamfer refers to an inclined or beveled edge that is formed by removing a small portion of material from the corner or edge of a workpiece. This process is commonly carried out to eliminate sharp edges, enhance the visual appeal, or facilitate assembly. To initiate the procedure, you must ensure that you possess a steel square, which is a tool comprising a lengthy metal blade with a handle that is perpendicular to it. The blade is inscribed with measurements and angles, making it extremely useful for accurately marking and outlining. The following are the steps involved in creating chamfered edges using a steel square: 1. Begin by measuring and marking the desired distance from the corner or edge where you intend to create the chamfer. This can be accomplished by employing the measurements on the steel square and aligning it with the edge of the workpiece. 2. Grip the steel square firmly against the workpiece, ensuring that the blade is aligned with the marked line. The handle should be perpendicular to the surface of the workpiece. 3. Once the steel square is correctly aligned, utilize a pencil or marker to trace along the edge of the blade onto the workpiece. This action will transfer the desired chamfer line onto the material. 4. Repeat this process on all sides or corners that necessitate chamfers. 5. Once the chamfer lines have been marked, you can use various tools such as a chisel, file, or a power tool (e.g., router or chamfer bit) to eliminate the material along the marked lines. It is crucial to follow the line precisely and gradually remove the material to achieve the desired chamfer. 6. After the material has been removed, inspect the chamfered edges for accuracy and smoothness. Make any necessary adjustments or refinements if required. Remember to don appropriate safety equipment, such as safety goggles and gloves, when working with tools and materials to prevent any potential injuries.

Q:Can a steel square be used for checking the alignment of a table router fence?: Indeed, one can utilize a steel square to verify the alignment of a table router fence. The steel square boasts exceptional precision and reliability, rendering it suitable for assessing the perpendicularity of two surfaces. By positioning the steel square adjacent to both the fence and table of the router, it becomes feasible to ascertain whether the fence is flawlessly perpendicular to the table or necessitates adjustment. This aspect holds utmost significance in guaranteeing precise and uniform cuts when employing a table router.

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