Square bar 5mm-100mm

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Loading Port:: China Main Port

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 flatness of a wall stud?: No, a steel square cannot be used for checking the flatness of a wall stud. A steel square is a measuring tool that is primarily used for marking and measuring right angles. It is not designed to assess the flatness or straightness of a surface. In order to check the flatness of a wall stud, a straightedge or a level should be used. These tools provide a more accurate measurement and can determine any irregularities or deviations in the surface.

Q: How does a steel square assist in determining the correct miter angle?: A steel square can assist in determining the correct miter angle by providing a straight edge and a right angle reference. By aligning the square against the material being cut, one can easily measure and mark the desired miter angle accurately.

Q: Can a steel square be used for tile backsplash layout?: Yes, a steel square can be used for tile backsplash layout. A steel square, also known as a carpenter's square or a framing square, is a versatile tool that can be used for many different tasks, including tile layout. It is made of steel and has a right angle shape, with one long arm and one shorter arm. When laying tiles for a backsplash, it is important to ensure that they are aligned properly and evenly. A steel square can be used to create straight lines and right angles, which are essential for a clean and professional-looking tile installation. It can be used to measure and mark the layout, ensuring that the tiles are positioned correctly and evenly spaced. To use a steel square for tile backsplash layout, start by determining the desired layout and design. Use the longer arm of the square to create straight vertical lines along the edges of the backsplash area, and the shorter arm to create horizontal lines. These lines will serve as a guide for placing the tiles. Additionally, a steel square can be used to check the accuracy of the corners and angles of the tiles. Simply place the square against the edges of the tiles to ensure that they are perfectly aligned and form a right angle. Overall, a steel square is a useful tool for tile backsplash layout as it helps to create straight lines, right angles, and ensures a precise and professional finish.

Q: Can a steel square be used for marking circles?: Marking circles is not possible with a steel square. A steel square, which is also referred to as a framing square or carpenter's square, is mainly intended for measuring and marking right angles. It comprises a long arm and a shorter arm that intersect at a 90-degree angle. Although it can be beneficial for different construction and woodworking activities, it lacks the essential attributes and structure required for precise circle marking. To mark circles, individuals typically employ a compass or a circle template that offers adjustable radii.

Q: How does a steel square assist in determining the correct angle for a sliding dovetail joint?: A steel square assists in determining the correct angle for a sliding dovetail joint by providing a reliable and accurate measurement tool. A sliding dovetail joint requires precise angles to ensure a tight and secure fit between the two mating pieces. When using a steel square, it can be placed against the edge of the board or workpiece to establish a right angle or 90-degree angle. This is important as the sliding dovetail joint typically requires a 90-degree angle to create a strong and seamless joint. The steel square can be used to mark the layout lines on the workpiece by aligning it with the edge and drawing a line along the edge of the square. This helps to ensure that the angle is consistent and accurate throughout the joint. Additionally, the steel square can be used to check the angle of the dovetail joint during the cutting process. By placing the square against the joint, it can help verify that the angle is correct and that the cutting is being done accurately. Overall, a steel square serves as a valuable tool in determining the correct angle for a sliding dovetail joint, providing accuracy and precision throughout the joint-making process.

Q: How do you maintain and clean a steel square?: To maintain and clean a steel square, you can start by wiping off any dirt or debris using a clean cloth or paper towel. For more stubborn stains or rust, you can use a mild detergent or steel cleaner and a soft-bristle brush to gently scrub the surface. After cleaning, make sure to dry the square thoroughly to prevent any moisture from causing corrosion. Additionally, applying a thin layer of oil or lubricant can help protect the steel from rusting in the long term.

Q: How do you use a steel square to mark a line parallel to a board edge?: To use a steel square to mark a line parallel to a board edge, place the square against the board with one of its edges aligned with the board's edge. Then, slide the square along the board until the desired distance for the parallel line is achieved. Finally, use a pencil or marking tool to mark the line along the edge of the square.

Q: Can a steel square be used for framing walls?: Yes, a steel square can be used for framing walls. A steel square, also known as a framing square or carpenter's square, is a versatile tool that is commonly used in carpentry and framing projects. It is typically made of steel and has a 90-degree angle and a shorter 45-degree angle. When framing walls, a steel square can be used to ensure accurate and square corners. It can be used to measure and mark lumber, check the squareness of walls, and guide the cutting and placement of studs and other framing components. The 90-degree angle of the steel square can be aligned with the edges of the wall, ensuring that the framing is straight and square. Additionally, a steel square can also be used for other tasks related to wall framing, such as marking and cutting angles for roof rafters or stairs. Its durability and precision make it a valuable tool for various framing tasks, including wall construction.

Q: How do you use a steel square to measure and mark scalene angles?: To measure and mark scalene angles using a steel square, the following steps should be followed: 1. Place the steel square on a flat surface or against a straight edge, ensuring proper alignment and perpendicularity. 2. Identify the scalene angle to be measured and marked, characterized by its three sides of different lengths. 3. Align one edge of the steel square with one side of the scalene angle, ensuring that the corner of the square lines up with the vertex of the angle. 4. Consult the scale or markings on the steel square to determine the angle's measurement. Most steel squares have degree markings etched or printed on them, allowing for easy reading of the angle. 5. Once the measurement is determined, employ a pencil or marker to mark the angle on the material being worked on. Ensure that the steel square is securely placed to prevent any movement while marking. 6. Repeat the process for any other scalene angles that require measurement and marking. It is important to acknowledge that although a steel square can provide precise measurements, it may not be suitable for very acute or obtuse angles. In such instances, alternative tools or techniques may be necessary to accurately measure and mark the angles.

Q: Can a steel square be used for measuring the height of a flagpole?: No, a steel square is not suitable for measuring the height of a flagpole as it is primarily used for drawing and measuring angles, not linear measurements like height.

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