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: Are there any specialty steel squares available for specific tasks?
- Indeed, there exist specialized steel squares tailored to specific tasks. Steel squares serve as versatile tools utilized across various industries, including carpentry, metalworking, and engineering. While standard steel squares suffice for most tasks, there are specialized variants designed to meet particular requirements. For instance, within woodworking, there are specialty steel squares referred to as rafter squares or carpenter's squares. These squares possess additional features such as tables or scales that assist in measuring angles and executing intricate cuts for rafters, stairs, and other applications. Within metalworking, there are steel squares explicitly crafted for welding and fabrication tasks. These squares often feature heat-resistant coatings or materials to endure the elevated temperatures associated with welding. They may also possess precise measurements and markings to ensure accurate layout and alignment. In the realm of engineering and machining, precision steel squares find common usage. These squares are manufactured with exceptional accuracy and tight tolerances, guaranteeing precise measurements and alignment. They are frequently employed in machinery setup, angle verification, and perpendicularity checks. Furthermore, certain specialty steel squares are devised for specific trades or industries. For instance, masonry squares made from steel with rust-resistant coatings cater to bricklaying and other masonry tasks. Similarly, roofing squares equipped with angled scales and markings enable roofers to measure and cut with utmost precision. In conclusion, specialty steel squares address the unique demands of diverse tasks and industries. Whether it be woodworking, metalworking, engineering, or other trades, there likely exists a specialized steel square capable of enhancing precision, accuracy, and efficiency within those specific applications.
- Q: What are some common uses of a steel square in woodworking joinery?
- A steel square, also known as a framing square or carpenter's square, is an essential tool in woodworking joinery. It is primarily used for measuring, marking, and checking right angles in woodworking projects. Here are some common uses of a steel square in woodworking joinery: 1. Marking and measuring right angles: The steel square is used to mark and measure 90-degree angles accurately. It helps in marking square lines, guiding saw cuts, and ensuring precise joinery. 2. Checking for squareness: Woodworkers use a steel square to check if a joint or corner is square. By placing the square against the joint or corner, they can quickly determine if it is perfectly square or needs adjustment. 3. Determining and transferring angles: Steel squares often have additional markings that allow woodworkers to determine and transfer angles other than 90 degrees. This ability is particularly useful for creating bevels, mitered corners, and complex joinery. 4. Layout and marking: Steel squares are used for laying out and marking components of a woodworking project. They help in transferring measurements accurately, marking cut lines, and ensuring precise positioning of joints and connections. 5. Guiding hand saw cuts: Woodworkers often use a steel square as a guide to ensure straight and accurate cuts with a hand saw. By aligning the square's edge with the cut line, they can maintain a consistent angle and achieve clean, precise cuts. 6. Checking for flatness: A steel square can also be used to check the flatness of a surface or board. By placing the square across the wood's width or length, woodworkers can identify any twists, bows, or warping that may affect the overall quality of the joinery. 7. Creating perpendicular lines and notches: The steel square is handy for creating perpendicular lines and notches in woodworking projects. It assists in aligning and marking where joinery elements such as mortises, tenons, or dovetails should be cut. Overall, the steel square is a versatile tool that plays a crucial role in ensuring accuracy, precision, and quality in woodworking joinery. Its multiple uses make it indispensable for woodworkers of all levels, from hobbyists to professionals.
- Q: How do you use a steel square to determine the height of a window sill?
- To use a steel square to determine the height of a window sill, you can place the square vertically against the window frame and extend it downwards until it reaches the top of the sill. Then, read the measurement marked on the square where it aligns with the top of the sill. This measurement will give you the height of the window sill.
- Q: Can a steel square be used for flooring installation?
- Yes, a steel square can be used for flooring installation. A steel square, also known as a framing square or carpenter's square, is a versatile tool commonly used in construction and carpentry. While it is primarily used for measuring and marking right angles, it can also be used for various tasks during flooring installation. One of the main uses of a steel square in flooring installation is to ensure the accuracy of cuts and angles. It can be used to mark straight lines and guide the cutting of flooring materials such as tiles, laminate, or vinyl. The square's straight edge can be placed against the material and used as a guide for precise cuts. Additionally, a steel square can help in laying out the flooring pattern. It can be used to measure and mark the layout lines for tiles or planks, ensuring a symmetrical and well-aligned installation. The square's right-angle feature allows for precise measurements and markings, which are crucial for achieving a professional and visually appealing flooring finish. Furthermore, a steel square can be beneficial in checking the squareness of a room or area before starting the installation. By placing the square's corner against the walls or existing flooring, any discrepancies in the angles can be easily identified. This is important as it helps to ensure that the flooring installation starts on a level and square foundation. In conclusion, a steel square can indeed be used for flooring installation. Its versatility, accuracy, and ability to measure and mark right angles make it a valuable tool for various tasks during the flooring installation process.
- Q: How do you use a steel square to measure the height of a wall?
- To use a steel square to measure the height of a wall, you can place the square's long edge vertically against the wall, ensuring it is flush with the ground. Then, mark the height on the square's blade where it meets the top of the wall. This marked measurement will represent the height of the wall.
- Q: How do you use a steel square to determine angles for wainscoting?
- To use a steel square to determine angles for wainscoting, start by placing the square flat against the wall and aligning one edge with the baseboard. Then, rotate the square until the other edge aligns with the desired angle for the wainscoting. Once the square is in the correct position, mark the angle on the wall using a pencil or a small level. This marked angle will serve as a guide for cutting the wainscoting pieces at the correct angle before installation.
- Q: Can a steel square be used for framing walls?
- Framing walls can be accomplished by utilizing a steel square. Known as a framing square or carpenter's square, this versatile tool is commonly employed in carpentry and framing endeavors. Typically crafted from steel, it possesses a 90-degree angle as well as a shorter 45-degree angle. When undertaking wall framing, a steel square proves invaluable in ensuring precise and square corners. It facilitates the measurement and marking of lumber, enables one to assess the squareness of walls, and guides the cutting and positioning of studs and other framing elements. By aligning the steel square's 90-degree angle with the wall's edges, the straightness and squareness of the framing are guaranteed. Furthermore, a steel square can be utilized for various other tasks related to wall framing, such as marking and cutting angles for roof rafters or stairs. Its durability and precision render it an indispensable tool for a multitude of framing duties, including wall construction.
- Q: How is a steel square different from a combination square?
- Carpentry and metalworking employ two distinct measuring tools: the steel square and the combination square. These tools differ in their characteristics and purposes. The steel square, also referred to as a framing square or carpenter's square, is a large tool shaped like an L, typically constructed from steel or aluminum. It consists of two arms, one longer than the other, and is primarily utilized for measuring and marking right angles. The blade, the longer arm, usually spans 24 inches, whereas the tongue, the shorter arm, measures around 16 inches. Construction tasks such as framing, stair layout, and squareness verification commonly rely on steel squares. Conversely, the combination square represents a versatile measuring instrument comprising a ruler or blade with an adjustable head that can be secured at varying angles. Its head incorporates a level bubble, a protractor scale, and a scribe or marking point. Unlike the steel square, the combination square permits precise measurements encompassing both angles and lengths. Woodworking, metalworking, and other trades that prioritize accuracy and adaptability often employ combination squares. Measuring and marking 45-degree and 90-degree angles, establishing miter cuts, and transferring measurements are among the tasks facilitated by combination squares. To summarize, the distinctive design and functionality separate the steel square from the combination square. The former serves as a straightforward L-shaped tool primarily geared towards measuring right angles, while the latter operates as a sophisticated measuring instrument capable of precise and versatile angle and length measurements.
- Q: What are some common applications for a steel square in metalworking?
- A steel square is a versatile tool commonly used in metalworking for a variety of applications. Some of the common uses of a steel square in metalworking include: 1. Measuring and marking angles: Steel squares are often used to measure and mark angles accurately. They have graduated scales along the blade and tongue, allowing for precise angle measurements and markings. 2. Checking squareness: A steel square is an essential tool for checking the squareness or right angles of metal components. It is used to ensure that corners and joints are properly aligned and perpendicular. 3. Layout and marking: Steel squares are frequently used for laying out and marking metal components. They provide a straight edge for drawing lines, marking points, and transferring measurements onto the workpiece. 4. Checking flatness: Steel squares can also be used to verify the flatness of a metal surface. By placing the square on the surface, any gaps or deviations from flatness can be easily identified. 5. Setting up machinery: In metalworking workshops, steel squares are often used to set up machinery and equipment. By using a square, operators can ensure that machines, workbenches, and other tools are aligned and level. 6. Welding and fabrication: Steel squares are invaluable for welding and fabrication tasks. They can be used to accurately position and align metal components during welding, ensuring proper fit and alignment. 7. Creating right angles and miters: Steel squares are commonly used to create right angles and miters in metalworking projects. They provide a reliable reference for cutting, joining, and assembling metal parts. 8. Layout and cutting of sheet metal: Steel squares are particularly useful in the layout and cutting of sheet metal. They can be used to draw and mark straight lines for cutting, folding, or bending sheet metal accurately. Overall, steel squares are essential tools in metalworking, enabling precise measurements, layout, alignment, and fabrication of metal components. Their versatility and accuracy make them indispensable for both professional metalworkers and DIY enthusiasts alike.
- Q: Can a steel square be used for laying out roof rafters?
- Yes, a steel square can be used for laying out roof rafters. Steel squares are commonly used by carpenters and roofers for measuring and marking angles when constructing roofs. They are durable and provide accurate measurements, making them suitable for the task of laying out roof rafters.
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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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