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:Can a steel square be used for measuring angles in concrete formwork?: Typically, a steel square is not employed for measuring angles in concrete formwork. In woodworking and various construction applications, steel squares are chiefly utilized for measuring and marking right angles. On the other hand, specialized tools like angle finders or protractors are commonly employed in concrete formwork to precisely measure and set desired angles. These tools are specifically designed for angle measurement and offer more accuracy compared to a steel square.

Q:What are some common uses for a steel square in metal fabrication?: A steel square, which is also known as a framing square or carpenter's square, is commonly used in metal fabrication for a variety of purposes. In metal fabrication, a steel square has several common uses including: 1. Accuracy in measuring and marking metal pieces is achieved with a steel square. It ensures precise angles and lines, which are crucial in metal fabrication. 2. Perfectly square corners are ensured by using a steel square in metal fabrication. This allows for accurate and seamless welding or joining of metal pieces. 3. Checking for flatness in metal sheets or plates is done using a steel square. It helps identify any warping or bending in the metal surface, allowing for corrections before further processing. 4. Layout work, which involves marking and positioning various components before assembly, benefits from the straight edges and angles of a steel square. It helps accurately transfer measurements and create templates for cutting or shaping metal pieces. 5. Drafting and designing metal structures or components often involve using steel squares. They aid in creating precise drawings, accurate calculations, and ensuring the final product meets required specifications. 6. Steel squares have a protractor scale that allows for measuring and marking various angles. This is beneficial in metal fabrication, where specific angles are required for cutting, bending, or welding metal pieces. 7. During the setup of machinery in metal fabrication workshops, steel squares are useful. They help align and position machines, ensuring they are level and accurately placed for optimal performance. Overall, a steel square is an essential tool in metal fabrication, providing accuracy, precision, and versatility in various tasks such as measuring, marking, squaring corners, checking flatness, layout work, drafting, designing, angle measurements, and machinery setup.

Q:Can a steel square be used for checking the plumbness of a column?: No, a steel square cannot be used for checking the plumbness of a column. A steel square, also known as a framing square or carpenter's square, is primarily used for measuring and marking right angles in carpentry and construction work. It consists of a long, straight edge with a perpendicular arm, forming an L-shape. While it can be useful for tasks such as checking angles or laying out cuts, it does not have the necessary features or accuracy to determine the plumbness of a column. To check the plumbness of a column, a plumb bob or a level would be more appropriate tools. A plumb bob is a weighted object attached to a string, which when suspended, aligns itself vertically due to gravity. By holding the plumb bob against the column, one can determine if it is perfectly vertical or not. On the other hand, a level has a bubble that moves within a vial, indicating whether a surface is level or plumb. By placing the level against the column, one can easily check if it is perfectly plumb or if it requires adjustment. In summary, while a steel square is a versatile tool in construction, it is not suitable for checking the plumbness of a column. A plumb bob or level should be used for this specific task to ensure accurate results.

Q:Can a steel square be used for foundation leveling?: Yes, a steel square can be used for foundation leveling. A steel square is a versatile tool commonly used in construction and carpentry for measuring, marking, and ensuring accuracy. When it comes to foundation leveling, a steel square can be utilized to check the levelness and alignment of the foundation walls or footings. By placing the steel square against the foundation surface and using a level, one can determine if the foundation is straight and level or if adjustments need to be made. However, it is important to note that while a steel square can provide a rough indication of the levelness of a foundation, more precise tools such as laser levels or transit levels are often used for more accurate leveling measurements.

Q:How do you use a steel square to determine the slope of a garden bed?: To use a steel square to determine the slope of a garden bed, you can follow these steps: 1. Start by placing one edge of the steel square against the ground at the lowest point of the garden bed. 2. Ensure that the steel square is level by using a bubble level or by checking that the bubble is centered within the level. 3. Once the steel square is level, hold it steady in that position. 4. Look at the other edge of the square that is extending away from the ground. This edge represents the slope of the garden bed. 5. Observe the markings on the steel square. Most steel squares have measurements and angles marked on them. 6. Read the measurement or angle that corresponds to the line created by the edge of the square. This will give you the slope of the garden bed. 7. You can either note down the measurement or angle for future reference or use it to make necessary adjustments to the garden bed. By using a steel square, you can accurately determine the slope of a garden bed, which is crucial for proper drainage and irrigation.

Q:How do you use a steel square to determine the angle of a rabbet cut?: In order to determine the angle of a rabbet cut using a steel square, there are a few straightforward steps that need to be followed. To begin, position the steel square against the edge of the rabbet cut, ensuring that one arm of the square is resting on the surface that you plan to cut. It is important to align the square correctly and firmly against the edge. Following this, utilize a pencil or scribe to draw a line along the other arm of the square. This line represents the desired cutting angle. Afterwards, measure the angle you have just marked by employing a protractor or angle finder. Simply place the protractor or angle finder against the line and read the measurement. Subsequently, you can transfer this angle to your saw by aligning the saw blade with the marked line on the steel square. Before making the cut, it is crucial to securely fasten the material you are working with. By utilizing a steel square to ascertain the angle of a rabbet cut, you can guarantee accuracy and precision in your woodworking endeavors.

Q:How do you use a steel square to ensure the correct angle for a half-lap joint?: To use a steel square for a half-lap joint, you would first mark the location of the joint on both pieces of wood. Then, place the steel square against the edge of one of the pieces, aligning the edge of the square with the marked location. Next, draw a line along the edge of the square. Repeat this process on the other piece of wood. Finally, ensure that the lines on both pieces align perfectly when the joint is assembled, indicating that the correct angle for the half-lap joint has been achieved.

Q:How do you use a steel square to measure and mark out crosscuts?: To measure and mark out crosscuts using a steel square, the following steps are typically followed: 1. Start by setting up your workpiece securely on a workbench or saw horses, ensuring it is clamped or held in place. 2. Measure and mark the desired length of the crosscut on the edge of the workpiece using a measuring tape or ruler. 3. Position the steel square against the edge of the workpiece, making sure the long arm touches the edge and the short arm extends over the face of the workpiece. 4. Align the square by adjusting its position until the long arm is parallel to the marked line on the edge of the workpiece. 5. Mark the exact location of the crosscut by using a pencil or sharp knife to draw a line along the edge of the steel square's short arm, extending across the face of the workpiece. 6. Ensure accuracy by double-checking your measurements before proceeding with the cut. If necessary, make any adjustments to the position of the steel square. 7. Finally, make the crosscut carefully using a suitable saw, such as a handsaw or circular saw. Remember to follow safety precautions and use the appropriate technique for the particular saw you are using. By following these steps, you can achieve precise and accurate crosscuts by effectively utilizing a steel square.

Q:How does a steel square assist in determining the correct angle for a cove cut?: When trying to achieve a cove cut, it is crucial to have the appropriate angle for the desired shape and fit. This is where a steel square comes in handy. Serving as a precise and accurate measurement tool, a steel square aids in determining the correct angle. Typically featuring a 90-degree angle, the steel square acts as a reference point. By aligning it with the material's edge that needs to be cut, you can establish a perpendicular line. This perpendicular line is then used to ascertain the correct angle for the cove cut. To find the correct angle, measure the distance from the perpendicular line to the desired endpoint of the cove cut. This measurement will provide the angle necessary to achieve the desired shape and fit. Furthermore, a steel square often includes other angle markings like 45 degrees. These markings can be utilized to create various types of cove cuts or to verify the accuracy of the measurement. Overall, a steel square is a reliable and precise measurement reference that assists in determining the correct angle for a cove cut. By ensuring accuracy and quality, it guarantees the desired outcome of the cut.

Q:Can a steel square be used for checking the accuracy of a miter saw?: Yes, a steel square can be used for checking the accuracy of a miter saw. A steel square is a precision measuring tool with a right angle shape, typically made from hardened steel. It can be used to determine if the blade of a miter saw is cutting at an accurate 90-degree angle. By placing the steel square against the miter saw's fence and the saw's blade, one can check if the blade aligns perfectly with the square's edge. If there is any gap or misalignment, it indicates that the miter saw is not cutting accurately. This method helps ensure the precision and accuracy of the miter saw's cuts and can be a valuable tool for woodworkers and carpenters.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range