15mm*1.77kg/m square bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
Hollow Section-Square Tubes
Application:
It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
Standard：
ASTM A500, GB6728
Steel grade:
ASTM A500: A, B, C
GB6728：Q195，Q215，Q235，Q345
Size of Pipe:
*Remark: Besides below sizes, we also can arrange production based on requirement of customers
SIZE(mm) | THICKNESS(mm) |
10×10 | 0.6-1.0 |
12×12 | 0.6-1.0 |
16×16 | 0.6-1.2 |
19×19 | 0.6-1.5 |
20×20 | 1.6-1.5 |
25×25 | 1.0-2.75 |
30×30 | 1.0-2.75 |
32×32 | 1.0-3.0 |
38×38 | 1.0-3.0 |
40×40 | 1.0-3.5 |
50×50 | 1.0-5.0 |
60×60 | 1.0-6.0 |
63.5×63.5 | 1.0-6.0 |
70×70 | 1.5-6.0 |
75×75 | 1.5-6.0 |
80×80 | 2.0-6.0 |
90×90 | 2.0-6.0 |
100×100 | 2.3-6.0 |
120×120 | 4.0-6.0 |
125×125 | 4.0-6.0 |
150×150 | 4.0-8.0 |
200×200 | 6.0-12 |
250×250 | 6.0-12 |
300×300 | 6.0-12 |
400×400 | 6.0-12 |
Standard: ASTM A500
Chemical Composition(%)
Chemical Requirement | ||||
| Composition % | |||
Grade A | Grade B | |||
Heat | Product | Heat | Product | |
Element | analysis | analysis | analysis | analysis |
Carbon max | 0.26 | 0.3 | 0.22 | 0.26 |
Manganese max | … | … | 1.4 | 1.45 |
Phosphorus, max | 0.035 | 0.045 | 0.03 | 0.04 |
Sulfur max | 0.035 | 0.045 | 0.02 | 0.03 |
Where an ellipsis (...)appears in this table, there is no requirement | ||||
For each reduction of 0.01 percentage point below the specified maximum for carton, and increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.6% by product analysis | ||||
Mechanical Properties
Tensile Requirement | ||
| Grade A | Grade B |
Tensile strength, min, psi (Mpa) | 48000 (400) | 70000 (483) |
Yield strength, min, psi (Mpa) | 36000 (250) | 50000 (345) |
Elongation in 2 in. (50.8mm), min, % | 23 | 23 |
GB6728：
Steel Grade |
CHEMICAL COMPOSITION |
MECHANICAL PROPERTIES | ||||||
C (%) |
Si (%) |
Mn
(%) |
P(%)
Max |
S (%)
Max |
YS(Mpa)
Min |
TS(Mpa)
Min |
El (%)
Min | |
Q195 |
0.06-0.012 |
0.3 |
0.25-0.5 |
0.45 |
0.5 |
195 |
315 |
22 |
Q215 |
0.09-0.15 |
0.3 |
0.25-0.55 |
0.45 |
0.5 |
215 |
335 |
22 |
Q235 |
0.12-0.22 |
0.3 |
0.3-0.7 |
0.45 |
0.45 |
235 |
375 |
20 |
Q345 |
0.20 |
0.55 |
1.0-1.6 |
0.45 |
0.45 |
345 |
510 |
21 |
Square Welded Hollo Sectio/Welded Rectangle Hollow Section
- Q: How do you use a steel square to measure the width of a window frame?
- To use a steel square to measure the width of a window frame, simply position the square against the inside edge of the frame at a right angle. Ensure that one arm of the square is flush against the bottom of the frame, and then read the measurement off the other arm. This will give you an accurate measurement of the window frame's width.
- Q: How do you use a steel square to ensure the correct angle for a mortise and tenon joint?
- To ensure the correct angle for a mortise and tenon joint using a steel square, you can follow these steps: 1. Start by marking the desired angle on the workpiece. This can be done by using a protractor or by referencing another piece with the desired angle. 2. Place the steel square against the edge of the workpiece, aligning one side of the square with the marked angle. 3. Hold the square firmly in place and use a pencil or marking knife to trace along the other side of the square. 4. Repeat this process on both the mortise and tenon pieces to ensure accurate alignment. By using a steel square in this manner, you can ensure that the angle for your mortise and tenon joint is correct, resulting in a strong and precise connection.
- Q: Can a steel square be used for checking the levelness of a miter saw base?
- Yes, a steel square can be used for checking the levelness of a miter saw base. A steel square is a useful tool that can be used to verify the accuracy and levelness of various surfaces, including the base of a miter saw. By placing the steel square against the surface of the miter saw base, you can easily determine if it is level or not. If the saw base is not level, adjustments can be made to ensure precise and accurate cuts. However, it's important to note that while a steel square can provide a rough estimate of the levelness, it may not be as accurate as using a precision-leveling tool.
- Q: How do you use a steel square to measure the height of a step?
- To use a steel square to measure the height of a step, you can follow these steps: 1. Place the steel square on the step at the edge, ensuring that it is perpendicular to the step's surface. The longer side of the square should be horizontal, parallel to the ground. 2. Slide the square along the vertical face of the step until the shorter side of the square touches the top edge of the step. 3. Once the square is positioned correctly, take note of the measurement on the longer side of the square where it intersects with the top edge of the step. This measurement will indicate the height of the step. 4. Ensure that the square is held firmly in place to prevent any movement during the measurement process. It is also crucial to ensure that you are reading the measurement accurately. 5. Repeat the process for each step to measure the height consistently.
- Q: Can a steel square be used for setting up a router table?
- Yes, a steel square can be used for setting up a router table. A steel square is a versatile tool that is commonly used for measuring and marking right angles. It can be used to ensure that the router table is properly aligned and squared. By placing the steel square against the router table's fence and tabletop, you can check if they are perpendicular to each other. Additionally, the square can be used to check the accuracy of various measurements and alignments during the setup process. However, it is important to note that there are specialized tools such as router table setup gauges that are specifically designed for this purpose, which may provide more precise results.
- Q: Can a steel square be used for measuring angles in masonry work?
- Yes, a steel square can be used for measuring angles in masonry work. A steel square, also known as a framing square or carpenter's square, is a versatile tool that can be used for a variety of measurements and layout tasks. While it is primarily used in woodworking, it can also be used in masonry work to measure angles and ensure accurate cuts and layouts. The square's right angle and various markings can be used to determine and transfer angles, making it a useful tool in masonry projects. However, it is important to note that for more precise or specific angles, specialized tools like a protractor or angle finder may be required.
- Q: Can a steel square be used for concrete formwork layout?
- Yes, a steel square can be used for concrete formwork layout. A steel square is a versatile tool commonly used in carpentry and construction work. It consists of a long, straight edge and a shorter, perpendicular edge forming an L-shape. It is primarily used for measuring and marking right angles and can be used to lay out concrete formwork. When setting up concrete formwork, it is crucial to ensure that the corners are perfectly square to ensure the proper alignment and stability of the structure. A steel square can be used to measure and mark right angles accurately, ensuring that the corners of the formwork are properly aligned. To use a steel square for concrete formwork layout, follow these steps: 1. Measure and mark the desired dimensions for the formwork on the ground or surface where it will be built. 2. Position the steel square on the marked points, aligning one edge with the reference line or surface. 3. Ensure that the perpendicular edge of the steel square is perfectly square with the reference line or surface, adjusting as necessary. 4. Use a marking tool to trace along the edge of the steel square, transferring the right angle mark onto the surface or ground. 5. Repeat this process for all corners and edges of the formwork, ensuring that they are all square. By using a steel square for concrete formwork layout, you can ensure that the formwork is accurately set up with perfectly square corners. This will result in a more stable and structurally sound concrete structure.
- Q: Can a steel square be used for measuring and marking compound miter cuts?
- Yes, a steel square can be used for measuring and marking compound miter cuts. A steel square, also known as a framing square or carpenter's square, is a versatile tool that can be used for a variety of measurements and marking tasks in woodworking. While it is not specifically designed for measuring and marking compound miter cuts, it can still be used effectively for this purpose. To use a steel square for measuring compound miter cuts, you would need to understand the angles and calculations involved in creating such cuts. Compound miter cuts involve both a miter angle and a bevel angle, which can be calculated based on the desired finished shape of the workpiece. Once you have determined the appropriate angles, you can use the steel square to mark these angles on the material you are working with. The long edge of the steel square can be aligned with the edge of the material, while the desired angles can be marked using a pencil or a scribe along the square's shorter edges. By carefully aligning the steel square and accurately marking the angles, you can ensure precise and consistent compound miter cuts. However, it is worth noting that there are specialized tools available, such as compound miter saws or digital angle finders, that are specifically designed for measuring and marking compound miter cuts. These tools can provide more precise and efficient results, especially for complex or intricate projects. Therefore, while a steel square can be used for measuring and marking compound miter cuts, using dedicated tools may be a better option in certain situations.
- Q: Are there any alternative tools to a steel square?
- Yes, there are alternative tools to a steel square. Some common alternatives include a combination square, framing square, bevel square, and try square. Each of these tools has its own specific uses and advantages depending on the task at hand.
- Q: How do you use a steel square to measure and mark 348.75-degree angles?
- To measure and mark 348.75-degree angles using a steel square, you would first align one edge of the square with the desired reference line. Then, rotate the square until the desired angle (348.75 degrees) is reached, making sure that the reference edge remains fixed. Finally, use a pencil or marking tool to mark the angle on the workpiece using the square as a guide.
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15mm*1.77kg/m square bar for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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