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: What are some common markings found on a steel square?: Some common markings found on a steel square include measurement scales, such as inches, centimeters, and millimeters, which are used to accurately measure and mark dimensions on materials. There are also markings for angles, typically ranging from 0 to 90 degrees, which can be used to measure or draw angles on various surfaces. Additionally, steel squares often have markings for rafter lengths, which are used in carpentry to determine the length of rafters or roof framing members. These markings can be in the form of numbers or symbols, and they help to ensure precise and accurate measurements and markings when working with a steel square.

Q: Can a steel square be used for checking the squareness of cabinet frames?: Checking the squareness of cabinet frames can be done using a steel square. Commonly referred to as a framing square or carpenter's square, a steel square is a versatile tool extensively used in woodworking and construction. With its 90-degree angle, it guarantees the perfect squareness of corners and edges. Determining if a cabinet frame is square or requires adjustments becomes effortless by positioning the steel square against its corners. Furthermore, the straight edges of the square enable the verification of shelf alignment, door alignment, and other cabinet components. In conclusion, a steel square is an invaluable tool for ensuring the precision and excellence of cabinet frames.

Q: How do you use a steel square to measure and mark perpendicular lines?: Achieving precise measurements and markings for perpendicular lines can be accomplished by utilizing a steel square. To accomplish this, adhere to the following guidelines: 1. Start by situating the steel square on the desired surface or material where a perpendicular line is to be established. Position one edge of the square against the reference edge or surface. 2. Guarantee that the square is appropriately aligned, ensuring that the longer side of the square is parallel to the reference edge or surface. Verify that the square is also positioned at a 90-degree angle in relation to the reference edge. 3. Once the square is correctly aligned, firmly secure it against the surface and employ a pencil or marking tool to create a line along the square's edge. 4. Subsequently, relocate the square away from the reference edge or surface, ensuring that the 90-degree angle between the square and the reference edge is maintained. 5. Align the longer side of the square parallel to the previously marked line, and position it so that one edge of the square aligns with the line. 6. With the square securely held against the surface, utilize a pencil or marking tool to generate a second line along the square's edge. 7. The line produced by the square ought to be perpendicular to the initial reference line, forming an ideal right angle. By adhering to these instructions, it is possible to accurately measure and mark perpendicular lines with the aid of a steel square. It is crucial to ensure that the square remains aligned and firmly secured against the surface to achieve precise outcomes.

Q: Can a steel square be used for checking the plumbness of posts?: No, a steel square is not typically used for checking the plumbness of posts. A level or a plumb bob is more commonly used for this purpose.

Q: How do you use a steel square to determine the slope of a hill?: To use a steel square to determine the slope of a hill, you will need to follow these steps: 1. Find a level area at the base of the hill where you can set up your steel square. Ensure that the area is clear of any obstacles or obstructions that may interfere with your measurements. 2. Position the steel square on the ground, making sure it is level and stable. You can use a spirit level or a bubble level to ensure its accuracy. 3. Hold the steel square upright so that one of its edges is touching the ground and the other edge is pointing towards the hill. Make sure the square is held firmly in place. 4. Use a plumb bob or a level to make sure that the steel square is perfectly vertical. This is crucial for accurate measurements. 5. Look at the steel square to determine the slope of the hill. The steel square consists of two arms – a shorter one and a longer one. The longer arm represents the horizontal line, while the shorter arm represents the vertical line. 6. Observe where the shorter arm intersects with the hill. This point indicates the height of the hill at that specific spot. 7. Measure the length of the shorter arm, which reflects the height of the hill. You can use a measuring tape or ruler to determine the exact length. 8. Measure the length of the longer arm, which represents the horizontal distance or run. 9. Calculate the slope of the hill by dividing the height (length of the shorter arm) by the horizontal distance (length of the longer arm). This will give you the slope in a ratio or percentage. For example, if the height of the hill is 4 feet and the horizontal distance is 20 feet, the slope would be 4/20, which is equivalent to 0.2 or 20%. By using a steel square and following these steps, you can determine the slope of a hill accurately. It is important to repeat the process at different points along the hill to get a comprehensive understanding of its overall slope.

Q: Can a steel square be used for fence installation?: Yes, a steel square can be used for fence installation. A steel square, also known as a framing square or carpenter's square, is a versatile tool that can be used for a variety of construction tasks, including fence installation. It is typically made of steel and has a long blade and a shorter tongue, forming a right angle. When installing a fence, a steel square can be used to ensure that the posts are set at the correct depth and are plumb (vertical) and level (horizontal). It can be used to measure and mark the locations for the fence posts, ensuring that they are spaced evenly and aligned properly. Additionally, a steel square can be used to check the corners for squareness and to ensure that the rails and pickets are installed at the correct angles. Overall, a steel square is a valuable tool for fence installation as it helps ensure accuracy, precision, and proper alignment throughout the installation process.

Q: Can a steel square be used for checking the levelness of a table saw top?: No, a steel square cannot be used for checking the levelness of a table saw top. While a steel square is a useful tool for measuring right angles and checking the squareness of a surface, it is not designed to determine the levelness of a table saw top. To check the levelness of a table saw top, a precision level or a straight edge should be used. These tools are specifically designed for this purpose and provide accurate readings to ensure the table saw top is perfectly level, which is crucial for achieving precise and accurate cuts.

Q: Can a steel square be used for laying out a foundation?: Yes, a steel square can be used for laying out a foundation. Steel squares are commonly used in construction for various purposes, including laying out foundation lines, checking right angles, and measuring angles and distances. Their durability and accuracy make them a reliable tool for ensuring proper alignment and dimensions during the foundation laying process.

Q: Can a steel square be used for marking out lap joints?: Absolutely, lap joints can be easily marked out using a steel square. Carpenters and woodworkers frequently rely on the versatility of this tool for measuring and indicating right angles. In the realm of woodworking, lap joints are commonly utilized, and a steel square serves as a precise instrument to mark the exact spots where the two wooden pieces will intersect. By aligning the square with the wood's edges, you guarantee a precise marking and cutting process, ultimately leading to a snug and flawless fit. The steel square acts as a dependable and precise reference point for marking out lap joints, making it an indispensable tool in this regard.

Q: How do you use a steel square to find the correct angle for a miter joint?: To use a steel square to find the correct angle for a miter joint, you would first measure the width of the material you are working with and mark that measurement on the square. Then, align the marked line with the edge of the material and rotate the square until the desired angle is achieved. Finally, mark the angle on the material using the edge of the square as a guide, and cut along that marked line to create a precise miter joint.

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