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: How do you use a steel square to determine the angle of a dado cut?: In order to determine the angle of a dado cut using a steel square, you must follow several simple steps. First, verify that your steel square is clean and in good condition, possessing clear markings and a straight edge. Next, position the square against the material's edge where you intend to execute the dado cut, ensuring proper alignment and flush contact. Then, adjust the square until the blade of the square becomes parallel to the material's surface. This indicates that the blade should be entirely horizontal or vertical, depending on the desired angle to be measured. Once alignment is achieved, locate the angle markings on the square, typically found on the blade or body. Refer to the angle measurement that corresponds with the square's alignment. Lastly, take note of the angle measurement obtained from the steel square. This measurement will aid in configuring the appropriate angle on your saw or cutting tool, guaranteeing accurate execution of the dado cut. Always remember to double-check your measurements and ensure correct alignment of the square to obtain the most precise angle measurement for your dado cut.

Q: How do you use a steel square to measure and mark 101.25-degree angles?: To measure and mark a 101.25-degree angle using a steel square, you would typically start by aligning one edge of the square against the reference line or surface. Then, rotate the square until the desired angle (101.25 degrees) aligns with the other edge of the square. Once the square is properly positioned, you can use a pencil or scribe to mark the angle on the material.

Q: How do you use a steel square for marking miter cuts?: To use a steel square for marking miter cuts, you need to follow a few simple steps. First, ensure that your steel square is clean and free of any debris or rust. This will help you get accurate measurements and markings. Next, determine the angle at which you want to make the miter cut. For example, if you want to make a 45-degree miter cut, you would need to set your steel square at that angle. Hold the steel square firmly against the edge of the material you are working with, making sure it is flush against both sides. Using a pencil or a marking knife, trace along the edge of the steel square to create a precise line. This line will serve as your guide for making the miter cut. Once you have marked all the necessary lines, you can proceed with cutting the material using a miter saw or any other appropriate tool for the job. Remember to always double-check your measurements and markings before cutting to ensure accuracy and avoid any mistakes. Practice and patience are key when using a steel square for marking miter cuts, so take your time to achieve the desired result.

Q: Can a steel square be used for measuring pipe fittings?: Yes, a steel square can be used for measuring pipe fittings. The straight edges of a steel square can be used to ensure that the pipe fittings are at right angles to each other. Additionally, the 90-degree angle of the square can be used to verify the accuracy of the pipe fitting's angles and ensure that they are properly aligned. However, it is important to note that for precise measurements and to account for any variations in the thickness of the pipe or fitting, specialized measuring tools such as calipers or tape measures may be more appropriate.

Q: Can a steel square be used for gazebo roofing?: Indeed, gazebo roofing can indeed be achieved by utilizing a steel square. Due to their robustness and resilience, steel squares are commonly employed in the construction industry. They furnish a solid foundation for roofing materials and can endure diverse weather conditions. Nevertheless, it is crucial to guarantee the appropriate installation and fastening of the steel square to the gazebo framework in order to establish a secure and enduring roofing solution. Furthermore, it is advisable to seek advice from a professional or adhere to the manufacturer's instructions to guarantee that the steel square is suitable for the particular gazebo design and weight specifications.

Q: Can a steel square be used as a level?: No, a steel square cannot be used as a level. A steel square is primarily a measuring and marking tool used in carpentry, while a level is designed to determine if a surface is horizontal or vertical.

Q: Can a steel square be used for insulation installation?: Using a steel square for insulation installation is not possible. Steel squares are commonly utilized in construction and woodworking to measure and indicate right angles. However, insulation installation necessitates materials that can offer thermal resistance, such as fiberglass, foam board, or mineral wool. These materials are specifically engineered to capture air and hinder heat transfer, a capability that steel squares lack. Consequently, it is crucial to employ suitable insulation materials for a successful installation.

Q: Can a steel square be used for measuring the thickness of plastic?: No, a steel square cannot be used for measuring the thickness of plastic. A steel square is primarily used for measuring right angles and checking for squareness. It is not designed to accurately measure the thickness of materials, especially something as flexible and variable as plastic. To accurately measure the thickness of plastic, specialized tools such as calipers, micrometers, or thickness gauges are more suitable. These tools provide precise measurements and are specifically designed for measuring thickness in various materials, including plastic.

Q: How do you use a steel square to measure and mark obtuse angles?: To measure and mark obtuse angles using a steel square, you need to follow these steps: 1. Place the long edge of the steel square against one side of the angle you want to measure. 2. Align the short edge of the square with the other side of the angle. 3. Observe the scale or markings on the square's blade to determine the angle's measurement. 4. Use a pencil or marker to mark the angle's measurement on the material or surface you're working on. Remember that a steel square typically measures up to 90 degrees, so if the angle you're measuring is greater than 90 degrees, you'll need to calculate the difference and mark it accordingly.

Q: How do you use a steel square to check for levelness in a floor?: To use a steel square to check for levelness in a floor, you will need a few additional tools such as a carpenter's level and a tape measure. First, ensure that the floor is clean and free from any debris or obstacles. This will ensure accurate measurements and prevent any obstructions that may affect the levelness of the floor. Next, choose a starting point on the floor where you will begin your measurements. It is typically best to start in a corner of the room or against a straight wall. Place the steel square on the floor at the starting point, ensuring that it is perfectly flush with the floor surface. If needed, use a carpenter's level to ensure that the steel square is perfectly level. Adjust the square until it is level, if necessary. Once the steel square is level, use a tape measure to measure the distance between the bottom of the square and the floor. Take note of this measurement. Move the steel square along the floor, maintaining its levelness, and repeat the process of measuring the distance between the bottom of the square and the floor at regular intervals. This could be every few inches or every foot, depending on the size of the floor and your preference. Compare the measurements you have taken. If the distance between the bottom of the square and the floor remains consistent throughout, it indicates that the floor is level. However, if the measurements vary significantly, it suggests that the floor is not level and may require adjustments or repairs. By using a steel square in conjunction with a carpenter's level and tape measure, you can effectively check for levelness in a floor. This process is crucial for various flooring projects, as it ensures a flat and even surface for installation or other purposes.

Send your message to us

*Email

*TEL

*Quantity

*Unit