High Quality GB Standard Steel Square Bar 38mm-45mm

High Quality GB Standard Steel Square Bar 38mm-45mm System 1

High Quality GB Standard Steel Square Bar 38mm-45mm

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 10000 m.t/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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: What are the different parts of a steel square?: A steel square, also known as a framing square or carpenter's square, consists of several parts that are essential for its functionality. The main components of a steel square include: 1. Blade: The blade is the long, flat metal surface on one side of the square. It is usually marked with measurements and angles, allowing for precise measurements and layout work. 2. Tongue: The tongue is a shorter section of metal located at the end of the blade. It is perpendicular to the blade and is typically used for marking and measuring short distances. 3. Heel: The heel is the wider end of the steel square, opposite to the tongue. It provides stability and acts as a reference point for making square cuts and angles. 4. Face: The face is the flat part of the square that is perpendicular to the blade and tongue. It is commonly utilized for drawing straight lines and checking the squareness of corners. 5. Fence: The fence is a raised edge along the face of the square. It helps in holding the square firmly against the workpiece, ensuring accurate measurements and straight lines. 6. Graduations: Graduations are markings or measurements found on the blade and face of the square. They allow for precise measurements of distances, angles, and cuts. 7. Squaring and Angle Scales: These scales are usually located on the face of the square and are used for measuring angles other than 90 degrees. They come in handy for marking angles, bevels, and complex cuts. 8. Rafter Tables: Some steel squares feature rafter tables, which are tables or charts engraved on the blade. These tables provide information and calculations for various roof framing applications, such as determining rafter lengths and angles. Overall, the different parts of a steel square work together to provide accuracy, stability, and versatility for various carpentry and layout tasks.

Q: How do you use a steel square to measure the width of a door jamb?: To measure the width of a door jamb using a steel square, follow the instructions below: 1. Make sure you have a steel square that consists of a long blade and a shorter tongue perpendicular to each other. This type of square is commonly referred to as a framing square or carpenter's square. 2. Begin by positioning the steel square against the inner edge of the door jamb. Ensure that the long blade is touching the floor and the tongue is facing towards the door opening. 3. Adjust the square by sliding it until the long blade is flush against one side of the door jamb. It is important to hold the square firmly and maintain a level position. 4. Examine the measurement markings on the long blade of the square. The numbers on the blade indicate inches or centimeters. Locate the mark that aligns with the opposite side of the door jamb. This mark will provide the width measurement of the door jamb. 5. Take note of the measurement obtained and repeat the process on the other side of the door jamb to ensure accuracy. If the door jamb is not perfectly square, take multiple measurements at different points along the jamb and calculate the average width. By following these steps, you can effectively utilize a steel square to measure the width of a door jamb. It is crucial to have a steady hand and maintain a level square in order to obtain accurate measurements.

Q: Can a steel square be used for plumbing layout and installation?: Yes, a steel square can be used for plumbing layout and installation. Steel squares, also known as framing squares or carpenter squares, are versatile tools that can be used for a variety of purposes, including plumbing work. When it comes to plumbing layout and installation, a steel square can be used for tasks such as measuring and marking angles, making straight cuts, checking for squareness, and ensuring proper alignment. It can be particularly useful for determining right angles and ensuring that pipes are installed at the correct angles and positions. Additionally, steel squares are typically made of durable materials, such as steel or aluminum, which makes them sturdy and long-lasting. This durability allows them to withstand the demands of plumbing work, including exposure to moisture and various types of chemicals. However, it's important to note that while a steel square can be a helpful tool for plumbing layout and installation, it may not be the only tool you need. Depending on the specific task and requirements, other tools like levels, plumb bobs, and pipe wrenches may also be necessary. In conclusion, a steel square can certainly be used for plumbing layout and installation tasks. Its versatility, durability, and ability to accurately measure and mark angles make it a valuable tool for plumbers and other professionals in the plumbing industry.

Q: How does a steel square assist in determining the correct angle for a compound angle joint?: A steel square assists in determining the correct angle for a compound angle joint by providing a precise and reliable tool for measuring and marking angles. It allows for accurate and consistent measurements, ensuring that the angles for the joint are correctly aligned and cut. This helps in achieving a tight and seamless fit for the joint, resulting in a strong and visually appealing finished product.

Q: Can a steel square be used for marking angles?: Certainly! A steel square is capable of serving as a tool for marking angles. Known by a few names such as framing square or carpenter's square, this versatile tool proves useful in various carpentry and trade tasks. Its main function revolves around measuring and marking right angles, but it is also capable of marking angles that are not 90 degrees. By utilizing the diverse markings and measurements present on the square, one can accurately mark angles on a piece of work. Moreover, the square's steel construction guarantees durability and stability, establishing it as a trustworthy tool for marking angles.

Q: How do you use a steel square to measure diagonals?: To use a steel square to measure diagonals, simply place the square against the corner of the object or surface you want to measure. Align one edge of the square with one side of the object and make sure the other edge is perpendicular to it. Then, measure the diagonal by extending the other edge of the square until it reaches the opposite corner. The measurement you obtain is the length of the diagonal.

Q: What are the different ways to hold a steel square when making measurements in metalworking?: There are several different ways to hold a steel square when making measurements in metalworking. One common method is to grip the square firmly in one hand, placing the long edge against the workpiece and aligning it with the desired measurement. Another way is to clamp the square to the workpiece using a C-clamp or a quick grip clamp, ensuring it is securely in place before taking measurements. Alternatively, a magnetic square can be used, which sticks to the metal surface and allows for hands-free measuring. These different holding techniques provide flexibility and stability when making accurate measurements in metalworking.

Q: Can a steel square be used for checking the squareness of a fence?: Yes, a steel square can be used for checking the squareness of a fence. It is a reliable and accurate tool that can help ensure that the fence is properly aligned and at right angles.

Q: How do you use a steel square to measure board widths at different angles and distances?: To use a steel square to measure board widths at different angles and distances, you will need to follow a few steps. Here's how you can do it: 1. Start by choosing the appropriate steel square for your measurement task. Steel squares come in different sizes and have various markings on them. Select one that suits your needs. 2. Place the steel square on the board's edge, ensuring it is aligned perpendicular to the edge. The long side of the square should be resting against the board's surface. 3. To measure the width at a right angle, align the square's short side with the board's edge and read the measurement on the long side. This will give you an accurate width measurement. 4. If you need to measure the width at a different angle, you will have to use the square's markings. The steel square typically has angles marked on it, such as 45 degrees or 30 degrees. Align the appropriate angle with the board's edge and then measure the width using the long side of the square. 5. To measure board widths at a specific distance from the edge, start by marking the desired distance on the board. Place the steel square's short side against this mark and align the long side with the board's edge. Then, read the measurement on the long side to determine the width at that specific distance. 6. Repeat these steps for any other angles or distances you need to measure on the board. Using a steel square to measure board widths at different angles and distances is an efficient and accurate method. Just ensure that you have a proper understanding of the square's markings and align it correctly with the board's edge to obtain precise measurements.

Q: Can a steel square be used for framing?: Framing can indeed be done with a steel square. A steel square, also referred to as a framing square or carpenter's square, is a versatile tool extensively used in construction and woodworking. While wooden or aluminum squares are traditionally used for framing, steel squares provide added durability and sturdiness. They consist of a long arm (body) and a shorter arm (tongue) that meet at a 90-degree angle, creating an L-shape. The body is typically 24 inches long, while the tongue measures around 16 inches. Steel squares possess various markings and measurements along their edges, making them highly useful for framing tasks. They can be utilized to lay out and mark straight lines, precisely measure angles, determine levelness and squareness, and verify the alignment of walls, doors, windows, and other components during the framing process. Steel squares are particularly advantageous when working with metal framing or when additional strength and durability are required. They are also resistant to warping and bending, ensuring accurate measurements and dependable outcomes. To summarize, a steel square proves to be an appropriate tool for framing due to its strength, durability, and versatility. Carpenters, construction workers, and woodworkers commonly employ it to guarantee precise and accurate framing measurements and alignments.

Send your message to us

*Email

*TEL

*Quantity

*Unit