140mm*60mm u channel steel for construction

140mm*60mm u channel steel for construction System 1

140mm*60mm u channel steel for construction

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Packaging & Delivery

Packaging Detail:	Prime hot rolled gi channel from china 1. It can be packed by container or bulk vessel. 2. 20ft container can load 25 tons, 40ft container can load 26 tons. 3.Standard export seaworthy package, it use wire rod with bundle according product's size. 4.Or we can make it as your requirement.
Delivery Detail:	15 working days after received the deposit or L/C.

Prime Hot Rolled Channel Steel from China GI Channel Steel Channel Specifications

Prime hot rolled gi channel
Competitive price
Fast delivery time
Customized length

FAQ

Q1: How soon can we receive the product after purchase?

A1: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Q2: What makes stainless steel stainless?

A2: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

Prime Hot Rolled Channel Steel from China GI Channel Steel Channel Pictures

Prime Hot Rolled Channel Steel from China GI Channel Steel Channel

Q: How do you use a steel square to measure roof pitch?: To use a steel square to measure roof pitch, you will need to follow a few steps. First, make sure you have a steel square that has markings for both inches and degrees. This tool is commonly known as a framing square or carpenter's square. Next, climb up to the roof and find a spot where you want to measure the pitch. It's usually best to choose a flat and level area for accuracy. Place the steel square on the roof with one leg (the longer side) pointing towards the peak of the roof and the other leg (the shorter side) extending down the slope. Align the steel square properly by ensuring that the long leg is parallel to the ridge line of the roof. Hold the square firmly in place and use a level to make sure it is perfectly horizontal. This step is crucial to obtain an accurate measurement. Once the square is properly aligned, look at the degree markings on the steel square's shorter leg. These markings usually range from 0 to 90 degrees. The number on the degree scale where the roof surface intersects the square's shorter leg indicates the pitch of the roof. For example, if the intersection point falls on the 6-degree mark, it means the roof has a 6-degree pitch. Additionally, the steel square can also be used to measure roof pitch in terms of rise over run. By measuring the vertical distance (rise) and the horizontal distance (run) between two points on the roof, you can then use the steel square's markings to determine the pitch ratio between the two. This method is commonly used by roofers and carpenters. Remember to be cautious and maintain your balance while working on a roof. It's always a good idea to have someone assist you or to use safety equipment if needed.

Q: What are the common sizes of steel squares available?: The availability of common sizes of steel squares varies depending on the specific application and industry requirements. However, there are some standard sizes that are commonly found in the market. Typically, steel squares are available in dimensions ranging from 1 inch to 12 inches in length. The sizes that are most frequently encountered include 2 inches, 4 inches, 6 inches, and 12 inches. These sizes are widely used in various fields such as carpentry, metalworking, construction, and engineering. It is also worth noting that steel squares can be found in metric measurements as well, with sizes like 50mm and 100mm being common alternatives to their inch counterparts. Ultimately, the choice of steel square size depends on the specific task at hand and the desired level of precision.

Q: How do you use a steel square to measure and mark 258.75-degree angles?: To achieve a measurement and marking of a 258.75-degree angle using a steel square, the following steps can be followed: 1. Place the steel square either on a flat surface or against the material's edge that requires marking. 2. Align the long side of the steel square along the desired angle's edge or line. 3. Confirm that the shorter side of the square is perpendicular to the long side and touching the material. 4. Employ a pencil or marker to designate the point on the material where the shorter side intersects the edge or line. 5. Proceed to locate the midpoint of the 90-degree angle formed by the steel square. This is accomplished by dividing the angle by 2, yielding 129.375 degrees. 6. Rotate the steel square in a manner that aligns the shorter side with the material's edge or line, while the long side points towards the recently calculated midpoint. 7. Once again, utilize a pencil or marker to mark the point where the shorter side meets the material. 8. The line connecting the two marked points should represent the desired 258.75-degree angle. It is vital to always verify your measurements and markings to ensure accuracy.

Q: Can a steel square be used for window and door framing?: Window and door framing can indeed utilize a steel square. These squares, which are also referred to as framing squares or carpenter squares, serve as versatile tools that are commonly employed in construction and carpentry. They possess the capacity to provide accurate and square measurements and angles, thereby rendering them suitable for a variety of framing tasks, including window and door installation. By virtue of their robust construction and precise markings, steel squares contribute to ensuring that windows and doors are properly aligned and securely fitted within the frame. However, it is worth noting that specific aspects of window and door framing may necessitate other specialized tools and techniques, such as shimming and leveling.

Q: How do you use a steel square to determine the angle of a hip rafter cut?: To use a steel square to determine the angle of a hip rafter cut, you will need to follow these steps: 1. Start by placing the steel square on the edge of the hip rafter at the desired location for the cut. 2. Align one arm of the square with the edge of the rafter and make sure it is horizontal. 3. Locate the 12-inch mark on the blade of the square and align it with the top edge of the rafter. 4. Take note of the number on the blade that aligns with the bottom edge of the rafter. This number represents the pitch of the roof. 5. Next, locate the number on the tongue of the square that corresponds to the pitch of the roof. 6. Use a pencil or a marking tool to draw a line along the tongue of the square. 7. This line represents the angle at which you need to make the cut on the hip rafter. 8. Finally, use a saw or any appropriate cutting tool to carefully cut along the marked line. By using a steel square in this manner, you can accurately determine the angle of the hip rafter cut and ensure a precise fit for your roofing project. It is important to note that the specific measurements and markings on the square may vary depending on the type and brand of the square, so it is recommended to consult the instructions or user manual provided with your particular steel square for more accurate guidelines.

Q: Can a steel square be used for deck stair layout and construction?: Yes, a steel square can be used for deck stair layout and construction. 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 tasks in woodworking and construction. It has one long arm and one shorter arm that are perpendicular to each other, forming a right angle. When it comes to deck stair layout and construction, a steel square can be particularly useful. It can help you determine the correct angles for cutting the stringers, which are the support structures that hold the treads and risers of the stairs. By using the steel square, you can accurately mark and measure the angles needed to create the steps. Furthermore, a steel square can aid in checking the levelness and alignment of the stringers during the construction process. It can be used to ensure that the steps are evenly spaced and that the risers are of equal height. This is essential for the safety and functionality of the stairs. Overall, a steel square is a valuable tool for deck stair layout and construction. It can assist in accurately measuring and marking angles, as well as ensuring the proper alignment and levelness of the stairs. However, it is important to have a solid understanding of how to use the steel square correctly to achieve the desired results.

Q: Can a steel square be used for measuring pipe diameters?: No, a steel square cannot be used for measuring pipe diameters. Pipe diameters are typically measured using a caliper or a tape measure specifically designed for such measurements. A steel square is primarily used for marking and checking right angles, not for measuring cylindrical objects like pipes.

Q: How do you use a steel square to find the length of a rafter?: To determine the length of a rafter using a steel square, follow these steps: 1. Position the steel square at the end of the rafter board, placing the shorter arm (tongue) against the board's edge. 2. Align the longer arm (body) of the square parallel to the rafter board's length. 3. Once the square is correctly placed, mark the point where the longer arm intersects the rafter board. 4. Proceed to slide the square along the rafter's length, making sure the shorter arm maintains contact with the board's edge. 5. Mark the rafter board at each point where the longer arm crosses it. 6. After marking multiple points along the rafter's length, connect the marks with a straight line. 7. Finally, measure the length of the straight line you drew, which represents the rafter's length. By utilizing a steel square in this manner, you can ensure precise measurements and easily obtain the rafter's length.

Q: What are some common materials used to make steel squares?: Some common materials used to make steel squares include stainless steel, carbon steel, and alloy steel. Stainless steel is often preferred for its durability and corrosion resistance. Carbon steel is commonly used for its strength and affordability. Alloy steel, which is made by adding other elements such as chromium, manganese, or vanadium to carbon steel, offers improved strength and hardness. These materials are chosen based on the specific requirements of the application and the desired properties of the steel square.

Q: How do you use a steel square to measure and mark 45-degree angles?: In order to measure and mark 45-degree angles using a steel square, the following steps should be followed: 1. Begin by placing the steel square on the desired material, ensuring that one of the square's edges aligns with the material's edge. 2. Identify the 45-degree angle on the steel square. Typically, this angle is indicated by a diagonal line intersecting the 90-degree angle. 3. Align the steel square in a way that the diagonal line representing the 45-degree angle matches the material's edge. Also, ensure that the opposite edge of the square runs parallel to the material's opposite edge. 4. Once the steel square is correctly positioned, utilize a pencil or scribe to mark the material along the square's edge. 5. For utmost accuracy and precision, it is advisable to mark the angle on both sides of the material. This can be accomplished by flipping the steel square and repeating the procedure on the opposite side. By adhering to these instructions, one can proficiently utilize a steel square to accurately and consistently measure and mark 45-degree angles.

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