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:How is a steel square different from a framing square?: A steel square and a framing square are both versatile tools used in carpentry and construction, but they have different designs and purposes. A steel square, also known as a rafter square or carpenter's square, is a small, handheld tool typically made of steel. It consists of two arms, a shorter one called the tongue and a longer one called the blade, meeting at a right angle. The blade usually has scales and markings to measure angles and lengths. Steel squares are primarily used for measuring and marking right angles, determining the squareness of corners, and laying out or checking angles for cuts. They are commonly used in tasks that require precision, such as framing, roofing, and stair construction. On the other hand, a framing square, also called a carpenter's square, is a larger tool typically made of aluminum or steel. It consists of a long arm called the blade and a shorter arm called the tongue, joined together at a right angle. The blade is wider and often has multiple scales and markings for measuring different angles, lengths, and cuts. Framing squares are primarily used in rough carpentry and framing applications, such as laying out and marking rafters, stairs, or walls. They are essential for ensuring accurate and consistent measurements and cuts in larger-scale construction projects. In summary, while both a steel square and a framing square are useful tools in carpentry and construction, they differ in size, design, and purpose. A steel square is smaller, handheld, and primarily used for measuring and marking right angles, while a framing square is larger, often with multiple scales, and used in rough carpentry tasks to ensure precise measurements and cuts.

Q:Can a steel square be used for checking the alignment of framing studs?: Yes, a steel square can be used for checking the alignment of framing studs. A steel square, also known as a framing square or carpenter's square, is a versatile tool that is commonly used in carpentry and construction. It has a wide range of applications, one of which is checking the alignment of framing studs. When framing a wall, it is essential to ensure that the studs are properly aligned, plumb, and level. This is crucial for the overall structural integrity of the wall. A steel square can be used to check the alignment of the studs by placing it against the studs and verifying if they are perpendicular to the top and bottom plates of the wall. The long arm of the steel square can be used to check if the studs are plumb, meaning they are perfectly vertical. By placing the long arm against the stud, the carpenter can ensure that it is straight and not leaning in any direction. Similarly, the short arm of the steel square can be used to check if the studs are level, ensuring that they are straight horizontally. The steel square provides a reliable and accurate means of checking the alignment of framing studs. Its sturdy construction and precise measurements make it an ideal tool for this purpose. However, it is important to note that while a steel square can be used for initial alignment checks, more advanced tools such as a laser level or plumb bob may be required for achieving absolute accuracy in larger construction projects. In conclusion, a steel square is a valuable tool that can be effectively used for checking the alignment of framing studs. Its versatility, durability, and accuracy make it a trusted choice for carpenters and construction professionals.

Q:How do you store a steel square to prevent rusting?: To prevent rusting, a steel square should be stored in a dry and clean environment. It is recommended to keep it in a moisture-free area, such as a toolbox, cabinet, or airtight container, preferably with some form of moisture-absorbing material like silica gel packets. Applying a thin coat of oil or rust preventative spray on the steel square before storage can also help minimize the risk of rust formation.

Q:How do you use a steel square to determine the length of a stair stringer?: To use a steel square to determine the length of a stair stringer, you need to first measure the rise and run of the stairs. Then, align the square's body along the run and the tongue along the rise. By sliding the square along the stringer, you can mark the appropriate length where the square lines up with the rise and run measurements.

Q:Can a steel square be used for checking the alignment of a belt grinder table?: Yes, a steel square can be used for checking the alignment of a belt grinder table. A steel square is a versatile tool that is commonly used in woodworking and metalworking to ensure accurate angles and alignments. When used for checking the alignment of a belt grinder table, the steel square can be placed against the table and used to verify if it is perfectly perpendicular to the direction of the belt. By aligning the square with the table's edge and observing if the corner of the square touches the entire length of the table, one can determine if the table is properly aligned. This method helps ensure that the belt grinder will operate efficiently and produce accurate results.

Q:How do you use a steel square for marking and cutting angled mortise and tenon joints?: To use a steel square for marking and cutting angled mortise and tenon joints, you will need to follow a few steps: 1. Start by determining the angle of the joint you want to create. This can be done using a protractor or by referencing a specific angle measurement. 2. Once you have the angle, place the steel square on the edge of the wood you want to cut. Make sure the long side of the square is aligned with the edge of the wood. 3. Use a pencil or a marking knife to mark the desired length of the tenon on the face of the wood. This will be the part that will fit into the mortise. 4. Next, use the short side of the steel square to mark the shoulder line of the tenon on the face and edge of the wood. The shoulder line is where the tenon will meet the mortise, creating a clean and flush joint. 5. Now, using the same angle, transfer the marks onto the piece of wood that will have the mortise. Make sure the marks align with the corresponding marks made on the tenon piece. 6. Use a chisel or a mortising machine to remove the waste material within the marked shoulder lines on the mortise piece. Take your time to ensure a precise and clean removal of the material. 7. Finally, use a saw or a chisel to cut along the marked tenon lines on the tenon piece, removing the excess material and shaping the tenon to fit snugly into the mortise. Remember to always measure twice and cut once to ensure accuracy.

Q:Can a steel square be used for checking the squareness of a scroll saw blade?: Checking the squareness of a scroll saw blade cannot be done with a steel square. Although a steel square is useful for assessing the squareness of various woodworking joints and cuts, it is not suitable for evaluating the squareness of a scroll saw blade. Scroll saw blades are made of thin, delicate, and hardened steel. They possess a unique shape and design that differs from the straight edge of a steel square. The blade of a scroll saw is typically curved, allowing for precise and intricate cuts. To accurately check the squareness of a scroll saw blade, it is recommended to utilize specialized tools like a scroll saw blade square or a scroll saw blade alignment jig. These tools are specifically designed for this purpose and provide the necessary angles and measurements to ensure proper alignment of the blade. Employing a steel square, which is designed for straight edges, may yield inaccurate results and could potentially harm or deform the delicate scroll saw blade. It is always advisable to use the appropriate tools for specific tasks to guarantee precise and safe outcomes.

Q:How do you use a steel square to lay out stair stringers?: To use a steel square for laying out stair stringers, you will need to follow a few steps. First, gather all the necessary tools and materials, including a steel square, a tape measure, a pencil, a framing square, and the dimensions or measurements for your stair design. Next, determine the rise and run of your stairs. The rise is the vertical height between each step, while the run is the horizontal depth of each step. Measure and mark these dimensions accurately. Once you have the rise and run measurements, you can start laying out the stringers. Place the steel square on the edge of the stringer board, aligning the 90-degree corner of the square with the top edge. This corner represents the top of the stringer. Use the rise measurement to mark a point on the stringer, starting from the top edge and moving down. This will indicate the location of the top of the first step. Then, use the run measurement to mark another point on the stringer, starting from the same top edge but moving horizontally. This will indicate the location of the front of the first step. Continue this process for the remaining steps, using the same rise measurement for each step but adjusting the run measurement accordingly. Make sure to mark both the top and front of each step accurately. After marking the stringer for all the steps, use the framing square to connect the marks and create the outline of the stringer. Place the square's wider arm against the top edge of the stringer and align the narrower arm with the front edge. Draw a line along the edge of the square to connect the marks and create the profile of the stringer. Finally, repeat these steps for the opposite side of the stringer if you are building a double stringer staircase. This will ensure that you have two identical stringers for your stairs. Using a steel square to lay out stair stringers is an effective method that helps ensure accurate and symmetrical construction. However, it is crucial to double-check your measurements and marks before cutting the stringers to avoid any mistakes or inaccuracies.

Q:Can a steel square be used for precise woodworking?: Indeed, precise woodworking can be achieved with the use of a steel square. These squares are meticulously crafted with precision and accuracy as their primary goal, making them well-suited for a wide range of woodworking tasks. Their design ensures that they are perfectly square and possess precise angles, enabling woodworkers to measure and delineate right angles and other angles necessary for meticulous woodworking. Tasks such as marking and verifying squareness, planning joints, executing precise cuts, and guaranteeing proper alignment of components are frequently accomplished using steel squares. Furthermore, these squares are highly durable and capable of enduring the demanding nature of woodworking, establishing them as a dependable tool for projects requiring utmost precision.

Q:What are some common uses of a steel square in metalworking tool fabrication?: A steel square, also known as a framing square or a carpenter's square, is a versatile tool commonly used in metalworking tool fabrication. Some of the common uses of a steel square in metalworking tool fabrication include: 1. Layout tool: Steel squares are used to mark and layout lines on metal sheets or workpieces. They provide accurate and straight angles for precise measurements and markings. 2. Right angle reference: Steel squares are ideal for checking and ensuring right angles in metalworking projects. By aligning the square's edges with the workpiece, one can easily verify if the corners are perfectly square. 3. Cutting guide: Steel squares can act as a cutting guide when performing tasks like sawing, shearing, or scoring metal sheets. The square's straight edge can be used as a reference to guide the cutting tool and ensure straight and accurate cuts. 4. Measuring tool: Steel squares come with graduated scales along the edges, allowing for quick and accurate measurements of lengths and angles. These measurements are crucial for ensuring precise dimensions and fit in metalworking tool fabrication. 5. Welding aid: Steel squares can be used as a guide during welding processes. They help in positioning and aligning metal pieces to be welded, ensuring that they are perfectly aligned and at the desired angle. 6. Checking for flatness: Steel squares can be used to check the flatness of a metal surface. By placing the square on the surface and observing the gaps, one can identify any irregularities or unevenness that need to be addressed. Overall, the steel square is a versatile and essential tool in metalworking tool fabrication. Its ability to provide accurate measurements, verify right angles, and act as a cutting and welding guide makes it invaluable for ensuring precision and quality in metalworking projects.

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