Squre Bar

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Supply Capability:: -

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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 deck-building projects?: Deck-building projects can utilize a steel square, which is also referred to as a framing square or rafter square. This tool, commonly used in construction, is made of heavy-duty steel and is equipped with various measurements and angles. The steel square serves multiple functions in accurate deck construction. It allows for the measurement and marking of straight lines, angles, and cuts. By using the steel square, the deck's initial design can be laid out precisely, ensuring precise dimensions and square corners. This tool is especially beneficial for framing and joist layout, as well as for determining stair height and pitch. Furthermore, the steel square acts as a guide for making straight cuts with a circular saw or handsaw. It guarantees that the cuts are both straight and square, resulting in a professional appearance for the deck. Additionally, it assists in marking and drilling holes for screws or nails, ensuring proper alignment. To summarize, the steel square is an essential tool for deck-building projects. Its durability, versatility, and accuracy make it invaluable to both DIY enthusiasts and professional contractors.

Q: Can a steel square be used for checking the levelness of countertops?: No, a steel square is not typically used for checking the levelness of countertops.

Q: How do you use a steel square for marking and cutting tenons with shoulders?: For marking and cutting tenons with shoulders, the following steps should be followed when using a steel square: 1. Before starting, make sure that the steel square is clean and free from rust or debris. This will guarantee accurate measurements and markings. 2. To begin, measure the width of the tenon on the piece of wood being worked on. Place the steel square on the wood's edge, aligning the inside edge of the square with the desired width measurement. 3. Once the square is aligned, use a pencil or marking knife to mark the tenon's width on the wood. It is important to mark both sides of the wood for accuracy. 4. Next, determine the tenon's depth. Measure the desired depth on the wood's end, perpendicular to the width marking. This will be the length of the shoulder on each side of the tenon. 5. Position the steel square on the wood's end, aligning the inside edge of the square with the depth measurement. Use a pencil or marking knife to mark the shoulder depth on each side of the wood. 6. After marking the tenon's width and shoulder depth, proceed to cut it. Use a saw to carefully cut along the width marking, stopping at the shoulder depth marking. Repeat this on the other side of the wood to create the tenon. 7. Once the tenon is cut, refine the shoulders using a chisel or shoulder plane. Carefully remove any excess wood to create a clean and flat surface for the shoulders. 8. Finally, check the fit of the tenon by inserting it into the corresponding mortise or joint. Make any necessary adjustments to the width or shoulder depth until the tenon fits snugly. By utilizing a steel square, precise measurements and markings can be ensured when marking and cutting tenons with shoulders. This will result in a sturdy and accurate joint that fits together seamlessly.

Q: How do you use a steel square to determine angles for picture hanging?: To use a steel square for determining angles for picture hanging, you will need to follow a few simple steps. 1. Begin by choosing a reference point on the wall where you want to hang the picture. This could be the center point or any other specific location you desire. 2. Hold the steel square against the wall, ensuring that one of the square's edges aligns with the reference point. This edge will serve as the baseline for measuring your angles. 3. Once the square is properly aligned, take a level and place it on top of the square. This will ensure that the square and the baseline are perfectly horizontal. 4. With the level in place, you can now determine the desired angle for your picture. Gently tilt the square upward or downward until you achieve the desired angle on the level. Make sure to keep the square and level steady during this process. 5. Once you have determined the angle, mark the position on the wall where the baseline intersects with the square. This will be the spot where you should hang your picture. 6. Finally, using a measuring tape or ruler, measure the distance from the reference point to the marked spot on the wall. This measurement will help you hang your picture at the correct height. By following these steps, you can use a steel square to accurately determine the desired angle for picture hanging, ensuring that your pictures are perfectly aligned and level.

Q: How do you use a steel square to measure the width of a shelf?: To use a steel square to measure the width of a shelf, follow these steps: 1. Place the steel square against the edge of the shelf, aligning the inside edge of the square with the side of the shelf. 2. Hold the steel square firmly against the shelf to ensure accuracy. 3. Look at the markings on the steel square. The square should have both imperial (inches) and metric (centimeters) measurements. 4. Identify the marking that corresponds to the desired width measurement. For example, if you want to measure in inches, look for the inch marks on the square. 5. Take note of the measurement where the inside edge of the square aligns with the other side of the shelf. This will give you the width of the shelf. 6. Repeat the process on multiple points along the shelf to ensure accurate measurements. If the shelf is not perfectly straight, taking multiple measurements will help you determine any variations in width. 7. Add up the measurements from step 5 to get the total width of the shelf. If there were any variations, calculate the average width by dividing the total measurement by the number of measurements taken. Using a steel square to measure the width of a shelf is an effective method as it provides a straight and precise reference point for accurate measurements.

Q: Can a steel square be used for checking the levelness of shelves?: Using a steel square, commonly called a framing square, to check if shelves are level is not possible. This tool, primarily used in carpentry and woodworking, is mainly used for measuring and marking angles and ensuring the precision of right angles. It is not intended or appropriate for checking the levelness of shelves. Instead, a level tool like a spirit level or a laser level should be utilized. These tools are specifically designed to determine if a surface is perfectly horizontal or level and provide a significantly more precise and dependable measurement for ensuring the levelness of shelves.

Q: How does a steel square assist in determining the correct angle for a beaded joint?: There are several ways in which a steel square can be utilized to determine the correct angle for a beaded joint. To begin with, the steel square possesses a 90-degree angle that can be employed as a point of reference to ensure that the beaded joint is perfectly perpendicular to the workpiece. By placing the square against the workpiece and aligning it with the joint, one can visually verify whether the joint is at a right angle or necessitates adjustment. Furthermore, the steel square enables the measurement and transfer of angles. Along its edges, the square typically features various degree markings that facilitate precise angle measurements. This proves particularly advantageous when dealing with beaded joints that require specific angles, such as mitered corners or angled cuts. By utilizing the square as a guide, one can accurately mark the desired angle on the workpiece and guarantee a precise beaded joint. Moreover, the steel square can function as a guide during the cutting or shaping of materials for the joint. By aligning the square with the workpiece and marking the desired angle, one can utilize the square as a reference point during the cutting or shaping process. This aids in achieving accurate and consistent angles across multiple pieces, resulting in a well-fitted and aesthetically pleasing beaded joint. In summary, a steel square proves indispensable in determining the correct angle for a beaded joint by virtue of its ability to provide a 90-degree reference, facilitate angle measurements and transfers, and serve as a guide during cutting and shaping operations. Its versatility and precision make it an essential tool for ensuring the accuracy and quality of beaded joints.

Q: How do you use a steel square to measure a roof pitch?: To use a steel square to measure a roof pitch, place the square's body against the roof's surface and align one edge with the bottom of the roof. Then, read the scale on the square to determine the roof pitch in inches per foot or degrees.

Q: What are the different ways to read angles on a steel square when working with metal?: There are several different ways to read angles on a steel square when working with metal. One way is to use the markings on the square itself, which often include degrees and increments of 45 and 90 degrees. Another method is to use a protractor or angle finder tool, which can provide more precise measurements for more complex angles. Additionally, some steel squares have built-in digital displays or laser guides that allow for even more accurate angle readings.

Q: How do you use a steel square to mark a line parallel to an edge?: To mark a line parallel to an edge using a steel square, follow these instructions: 1. Position the steel square on the surface, making sure that one side is touching the edge you want to mark parallel to. 2. Verify that the square is properly aligned and flush against the edge. 3. Securely hold the square in place to prevent any movement. 4. Employ a pencil or a scribe to trace a line alongside the edge of the steel square. 5. Continue marking the line until you reach your desired length. Remember to periodically check the square to guarantee it hasn't shifted while marking the line. Additionally, it is advised to use a sharp pencil or scribe for precise markings.

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