square steel carbon steel square bar

Ref Price:
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
5000 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

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

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

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:
To use a steel square for marking and cutting half-blind dovetail joints, follow these steps: 1. Start by selecting a steel square that has a precise 90-degree angle. This tool will help ensure accurate markings and cuts for your half-blind dovetail joints. 2. Begin by marking the thickness of your dovetail joint on the end grain of the tail board and the face of the pin board. This can be done by holding the steel square against the end grain of the tail board and drawing a line along the inside of the square. Repeat this step on the face of the pin board. 3. Next, you will need to mark the depth of the dovetail joint on both the tail and pin boards. Hold the steel square against the end grain of the tail board and align the blade of the square with the marked thickness line. Draw a line along the blade of the square to mark the depth. Repeat this step on the pin board. 4. Once the thickness and depth lines are marked, position the steel square against the face of the tail board. Align the blade of the square with the marked thickness line on the pin board. This will create a reference line for the shoulder of the dovetail joint. 5. Use a marking knife or a pencil to trace along the blade of the steel square, marking the shoulder line on the face of the tail board. Repeat this step on the face of the pin board. 6. Now, you can mark the angled sides of the dovetail joint. Hold the steel square against the face of the tail board, aligning the blade with the shoulder line. Draw a line along the blade, creating the angle line for the dovetail. Repeat this step on the pin board. 7. With the lines marked, you can now proceed to cut the half-blind dovetail joints using a dovetail saw or a similar cutting tool. Follow the marked lines carefully to ensure accurate and precise cuts. By using a steel square to mark and cut half-blind dovetail joints, you can achieve well-fitted joints that contribute to the strength and aesthetics of your woodworking project. Remember to measure accurately and make precise cuts for the best results.
Q:
The natural state of steel squares does not include resistance to rust. Steel, being mainly composed of iron, is susceptible to rust when exposed to moisture and oxygen. Nevertheless, it is possible to render steel squares rust-resistant by employing a process known as galvanization or by applying protective coatings like paint or enamel. Galvanization entails covering the steel with a layer of zinc, which serves as a protective barrier, shielding the steel beneath from rusting. By implementing these protective measures, the rust resistance of steel squares is significantly improved, thereby extending their lifespan.
Q:
Accurately measuring the height of a building cannot be done with a steel square. The steel square, also called a framing square, is a measuring tool commonly used in carpentry and woodworking. It consists of two arms, one shorter and one longer, joined together at a 90-degree angle. While the steel square is ideal for measuring and marking angles, it is not designed to measure vertical distances. For measuring the height of a building, specialized tools like a laser level, a theodolite, or a total station are more suitable. These instruments are specifically designed for measuring vertical heights and provide precise and accurate results. They utilize techniques such as lasers or optical measurements to determine the building's height by measuring the angle of elevation or directly measuring the distance from the base to the top. In conclusion, although the steel square is versatile for certain construction and woodworking tasks, it is not appropriate for measuring the height of a building. To ensure accurate measurements, it is important to use the appropriate instruments designed specifically for this purpose.
Q:
Here is an alternative version: To measure the width of a window frame using a steel square, follow these instructions: 1. Begin by selecting a steel square of an appropriate size. One side of the square should be longer than the width of the window frame you wish to measure. 2. Position the steel square against one side of the window frame, making sure it is aligned with the edge. 3. Obtain a measurement by aligning the end of the square with the opposite side of the window frame. Read the measurement at the point where the other side of the square intersects with the frame. 4. For accuracy, repeat this process on the other side of the window frame and compare the two measurements. The width of the window frame can be determined by averaging these two measurements. 5. If necessary, you can also measure the diagonal of the window frame by placing the steel square diagonally across the frame and following the aforementioned steps. This will help ensure that the frame is perfectly square. Always remember to note the units used for measurement, such as inches or centimeters, in order to effectively communicate the width of the window frame.
Q:
There are several factors to take into consideration when selecting the appropriate size of steel square. To begin with, the purpose of your project needs to be determined. Different tasks call for different sizes of squares. For smaller projects or intricate measurements, a smaller steel square may be more suitable. Conversely, larger construction projects or the need to measure long distances would require a larger square. Moreover, the size of the materials you will be working with should be taken into account. Handling smaller pieces of wood or metal will be easier and provide more accurate measurements with a smaller square. Conversely, larger materials may necessitate a larger square to ensure precise measurements and proper alignment. Furthermore, the level of precision required for your project is an important consideration. For highly accurate measurements, a smaller steel square with finer graduations would be more appropriate. However, if your project allows for slightly less precision, a larger square with larger graduations may suffice. Lastly, your own comfort and ease of use should also be factored in. If you have larger hands or prefer a more substantial tool, a larger steel square may be more comfortable to hold and manipulate. In conclusion, selecting the right size of steel square involves evaluating the purpose of your project, the size of the materials, the level of precision needed, and your own comfort and ease of use. By taking these factors into consideration, you can choose the most suitable size of steel square to meet your needs.
Q:
Yes, a steel square can be used for measuring stair angles. It is a versatile tool that can be used for various types of measurements and calculations, including determining the angles of staircases.
Q:
Some common uses for a steel square in woodworking joinery include checking for squareness and measuring angles, marking and transferring measurements, checking for flatness and straightness, and aligning and testing joints.
Q:
Yes, a steel square can be used for setting up a miter saw. A steel square is a versatile tool that can be used for measuring and checking angles, making it suitable for aligning the blade of a miter saw to ensure accurate and precise cuts.
Q:
Yes, a steel square can be used for laying out a patio. A steel square is a versatile tool that can be used to measure right angles and ensure accurate and square corners during the patio layout process. It can help in aligning and positioning the patio pavers or stones, resulting in a well-designed and level patio surface.
Q:
Yes, a steel square can be used for fence gate installation. A steel square, also known as a framing square, is a versatile tool commonly used in carpentry and construction projects. It is typically made of steel and has a 90-degree angle and various measurements marked along its edges. When installing a fence gate, a steel square can be used to ensure accurate and precise measurements and angles. It can assist in determining if the gate is square, meaning that all sides are equal and the corners are at 90-degree angles. This is important for the gate to function properly and fit securely within the fence. A steel square can also be used to mark and measure the placement of hinges and other gate hardware. By aligning the square along the gate's edges, one can easily mark the desired locations for hinges, latch, and handle installation. Additionally, a steel square can be utilized to check the levelness of the gate during installation. By placing the square vertically against the gate, one can determine if it is plumb (perfectly vertical) or if adjustments are needed. Overall, a steel square is a valuable tool for fence gate installation as it ensures precision, accuracy, and proper alignment. It can greatly assist in achieving a well-built and functional gate that enhances the security and aesthetic appeal of the fence.

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