0.3% De Chemial Element Cr For Steel Square Bar

0.3% De Chemial Element Cr For Steel Square Bar

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description

There are two types of Square Bar, one is hot rolled square bar and other one is cold drawn square bar. Our principal products is hot rolled square bar. We dedicate to products with material Q195 and Q235. We offer products with high quality and low price.

Specifications

-Standard: GB,

-Grade: Q195/Q235 or equivalent.

-Chemical Composition:

Standard	Grade	Element (%)
Standard	Grade	C	Mn	S	P	Si
GB	Q195	0.06~0.12	0.25~0.50	≤0.050	≤0.045	≤0.30
GB	Q235B	0.12~0.20	0.30~0.70	≤0.045	≤0.045	≤0.30

-Mechanical Properties:

Mechanical Properties	Grade	Steel diameter（mm）
Mechanical Properties	Grade	≤16	16~40	40~60	60~100
Yield Point Δs/MPa	Q195	≥195	≥185	-	-
Yield Point Δs/MPa	Q235	235	225	215	205
Tensile Strength	Q195	315~390
Tensile Strength	Q235	375~500
Elongation δ5%	Q195	≥33	≥32	-	-
Elongation δ5%	Q235	26	25	24	23

Measures (Big measures):

(Section of Hot-rolled Square Steel Bar)

-Length of a side and Theoretical weight of Square Bar (Big measures).

Length of a side(mm)	Theoretical weight(kg/m)	Length of a side(mm)	Theoretical weight(kg/m)
53	22.05	80	50.24
56	24.61	85	56.72
60	28.26	90	63.59
63	31.16	95	70.85
70	38.49	100	78.50
75	44.16

Notes:

1, The theoretical weights in the list, base on the density of 7.85 g/cm3.

2, Formula for theoretical weight of Square bar: a(length of a side) * a * 0.00785

3, The numbers with ＊mean that they are not regular or we don’t offer them.

-Regular length of Square Bar:

Steel	Length of a side (mm)	Length of steel (m)
Normal steel	< 25	4~10
Normal steel	> 25	3~9
Steel of high quality	All measure	2~6
Steel of high quality	Tool steel >75	1~6

Usage/Applications

-The Square Steel is normally used as structure steel.

-Row material for other structure steel like steel angles, channels, I-beams, H-beams, etc…

-Row material for steel pipes.

Packaging & Delivery

-Packing Detail:

1, The products can be packed in bundles by steel wires.

2, The weight of each bundle no exceed normally 3 tons.

-Marks: We make tag marks and color marks for each bundle. The tag marks with white background and red company log will be tied up to each bundle. The information is usually including basic information of company and products like product name, specification, etc...and other information required by customers. As for color marks, we will paint both ends of each bundles to make sure that it will be more convenient for customers to distinguish theme from other products.

-Delivery Detail: 30~45 working days after receive buyer’s T.T. or L/C.

Payment:

-Invoicing on theoretical weight or actual weight as 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.

-The payment terms will be written in contraction detailed.

Q: How do you use a steel square to find the center of a circle?: To use a steel square to find the center of a circle, follow these steps: 1. Place the steel square on a flat surface, ensuring that it is level and perpendicular to the ground. 2. Position the circle whose center you want to find on top of the steel square, making sure that it is also flat and stable. 3. Locate the two sides of the steel square that are perpendicular to each other. These sides are typically labeled as the blade and the tongue. 4. Align the blade of the steel square so that it is tangent to the circumference of the circle at any point. 5. Rotate the circle while keeping the blade in contact with the circumference. As you rotate, you will notice that the tongue of the steel square will intersect the circumference at two points. 6. Mark these two points on the circumference of the circle. 7. Draw a straight line connecting the two marked points on the circumference. 8. Repeat steps 4 to 7 at a different tangent point on the circle. 9. The intersection of the two lines you drew in steps 7 and 8 is the center of the circle. By using a steel square in this manner, you can accurately determine the center of a circle. This technique is particularly useful in woodworking, construction, and other applications where precision is crucial.

Q: What are the different techniques for using a steel square in woodworking joinery?: There are several techniques for using a steel square in woodworking joinery, each serving a specific purpose in achieving accurate and precise measurements and angles. Here are a few commonly used techniques: 1. Checking for squareness: One of the primary uses of a steel square is to ensure that the corners of a joint or workpiece are perfectly square. To do this, you can place the square against the edge of the workpiece and check if the adjoining edge is perpendicular to it. This technique is crucial for creating strong and stable joints. 2. Marking 90-degree angles: When you need to mark a 90-degree angle on a workpiece, a steel square comes in handy. Place the square against the edge of the workpiece and trace along the inside edge of the square with a pencil or marking knife. This technique ensures consistent and accurate marking for precise joinery. 3. Marking angles other than 90 degrees: Steel squares often come with additional markings that allow for the measurement and marking of angles other than 90 degrees. By aligning the desired angle measurement with the edge of the workpiece, you can accurately mark the angle needed for complex joinery. 4. Determining plumb and level: Steel squares can be used to check if a workpiece is plumb (vertical) or level (horizontal). By holding the square against the edge of the workpiece and using a spirit level or plumb bob, you can ensure that your project is properly aligned. 5. Transferring measurements: Steel squares can also be used to transfer measurements from one workpiece to another. By aligning the square against the edge of the first workpiece and marking the desired measurement, you can then transfer that measurement to the second workpiece using the square as a guide. 6. Creating mitered corners: When working with mitered corners, a steel square is essential for ensuring accurate angles. By placing the square against the workpiece and aligning it with the desired angle, you can mark and cut the joint precisely, resulting in clean and tight mitered corners. In summary, the steel square is a versatile and valuable tool for woodworking joinery. Whether you need to check for squareness, mark angles, determine plumb and level, transfer measurements, or create mitered corners, the steel square provides the precision and accuracy required for successful woodworking projects.

Q: How do you use a steel square to lay out a half-lap joint?: To use a steel square to lay out a half-lap joint, you will need the following materials: a steel square, a pencil or marking knife, and the pieces of wood you wish to join together. First, determine the desired size of the half-lap joint by measuring the thickness of the wood and deciding how much overlap you want between the two pieces. This overlap typically ranges from one-third to one-half of the thickness of the wood. Next, place the steel square on one of the pieces of wood at the location where you want the joint to be. Ensure that the square's blade and tongue are aligned with the edges of the wood. The blade should be against one face of the wood while the tongue extends along the adjacent face. Using a pencil or marking knife, mark a line along the blade of the square onto the wood. This line represents the depth of the half-lap joint. After marking the first piece of wood, repeat the process on the second piece, ensuring that the marks align with those on the first piece. This will ensure a proper fit when the joint is assembled. Now, you can use the square to mark the width of the joint. Place the square on the edge of the wood, aligning the tongue with the previously marked depth line. With the square in position, mark a line across the face of the wood using the blade as a guide. Repeat this process on both pieces of wood to ensure accurate alignment. Finally, use a saw to cut along the marked lines, removing the waste material to create the half-lap joint. Take care to stay within the marked lines, as this will determine the final fit of the joint. Once the joint is cut, test the fit by joining the two pieces together. Make any necessary adjustments to ensure a snug fit, and then use glue or other appropriate fasteners to secure the joint. By following these steps and using a steel square as a guide, you can accurately lay out and create a strong and secure half-lap joint.

Q: How do you use a steel square to determine the angle of a miter gauge cut?: To use a steel square to determine the angle of a miter gauge cut, you need to align the square's long side with the miter gauge and the short side with the workpiece. Then, adjust the miter gauge until the square's edge is parallel to the desired angle of the cut. This allows you to accurately set the miter gauge to achieve the desired angle for your cut.

Q: How do you use a steel square to measure and mark 135-degree angles?: Achieving a precise and accurate measurement and marking of a 135-degree angle can be accomplished by employing a steel square and adhering to the subsequent instructions: 1. Commence by aligning the elongated edge of the steel square parallel to the baseline or edge of the material you are working on. 2. Locate the 45-degree angle indication on the steel square. Generally, this marking is situated at the intersection of the square's two sides. 3. Position the steel square's corner at the initiation point of the angle you wish to measure and mark. 4. Rotate the steel square until the 45-degree angle marking aligns with the baseline or edge of the material. 5. Once the alignment of the 45-degree angle marking is achieved, continue rotating the steel square until the desired 135-degree angle is attained. 6. Maintain the steel square in its position and employ a pencil or marking tool to create a mark along the long edge of the square, indicating the 135-degree angle. 7. Lastly, remove the steel square and connect the mark you made with the starting point to form the 135-degree angle. By adhering to these instructions, you can proficiently utilize a steel square to measure and mark a 135-degree angle with precision and accuracy.

Q: How do you use a steel square to determine the slope of a deck?: To find the slope of a deck using a steel square, you can proceed as follows: 1. Locate a flat and level surface near the deck, such as the ground or a nearby table. 2. Place the steel square on the flat surface, ensuring it is completely level. You can verify this using a bubble level. 3. Position the steel square against a vertical post or wall of the deck. Align one side of the square with the post while extending the other side towards the deck's edge. 4. Once the steel square is in the correct position, use a carpenter's level or a plumb bob to establish a vertical line. This will serve as a reference point for measuring the slope. 5. Measure the distance between the horizontal edge of the steel square and the deck's surface, starting from the vertical line. You can utilize a tape measure or ruler for this step. 6. Take note of this measurement, as it represents the rise or drop in height over a specific distance. 7. To determine the slope, divide the rise or drop in height by the distance measured in the previous step. This calculation will yield the slope ratio or gradient of the deck. For instance, if you measured a 1-inch rise over a 12-inch distance, the slope would be expressed as 1:12 or 1/12. By following these steps and employing a steel square in conjunction with a level, you can accurately ascertain the slope of a deck. This information is crucial for ensuring proper drainage, preventing water accumulation, and maintaining the deck's structural integrity.

Q: How do you use a steel square to lay out a hip rafter?: To use a steel square to lay out a hip rafter, you need to follow a few steps. Firstly, determine the pitch of the roof. This is usually expressed as a ratio, such as 4:12 or 6:12, representing the rise over the run. The rise is the vertical distance from the top of the wall plate to the highest point of the roof, while the run is the horizontal distance from the outside of the wall plate to the ridge. Next, measure the run of the hip rafter from the outside of the wall plate to the point where it intersects with the ridge. Use this measurement to mark the run on the blade of the square. Then, find the rise of the hip rafter by multiplying the run by the pitch ratio. Mark this measurement on the tongue of the square. Now, position the square on the edge of the rafter stock, aligning the marks on the blade and tongue with the appropriate edges. The square should be held with the tongue pointing up. Using the square as a guide, mark the plumb cut of the hip rafter on the stock. This will be the cut made at the top end of the rafter where it meets the ridge. Next, rotate the square so that the blade is facing up and the tongue is pointing to the left. Align the marks on the blade and tongue with the edges of the rafter stock. Using the square as a guide again, mark the seat cut of the hip rafter on the stock. This will be the cut made at the bottom end of the rafter where it rests on the wall plate. Finally, make the necessary cuts on the marked lines to shape the hip rafter according to the layout determined by the steel square. It is important to note that using a steel square for laying out a hip rafter requires accuracy and precision. It is recommended to practice and double-check measurements to ensure the rafter fits correctly in the roof structure.

Q: Can a steel square be used for checking the squareness of a drill press table?: The squareness of a drill press table cannot be checked using a steel square. Although a steel square is effective for measuring right angles and checking the squareness of different objects, it is not intended for specifically checking the squareness of a drill press table. For a proper assessment of the drill press table's squareness, a precision square or a dial indicator would be more appropriate. These tools are specifically designed for measuring the alignment and squareness of surfaces. They offer precise readings and can identify any deviations from a perfect right angle. Although a steel square may offer a rough estimate, it cannot provide the necessary level of accuracy to ensure the squareness of a drill press table. It is always advisable to use the appropriate tools designed for the specific task in order to achieve accurate and dependable results.

Q: How do you use a steel square to determine the length of a pipe cut?: To use a steel square to determine the length of a pipe cut, you would follow these steps: 1. First, ensure that the steel square is clean and free from any dirt or debris. This will ensure accurate measurements. 2. Place the steel square against the end of the pipe, making sure it is aligned properly. The inside edge of the square should be flush against the pipe, while the outside edge extends beyond the end of the pipe. 3. Take note of the measurement where the steel square intersects the pipe. This will give you the distance from the end of the pipe to the point of intersection. 4. Use a permanent marker or a scribe to mark the pipe at the point of intersection. This mark will indicate the length of the pipe cut. 5. Double-check your measurement and mark to ensure accuracy. 6. Finally, use a suitable cutting tool, such as a pipe cutter or a hacksaw, to cut the pipe along the marked line. By following these steps, you can effectively use a steel square to determine the length of a pipe cut with precision and accuracy.

Q: Can a steel square be used for checking the squareness of cabinets?: Yes, a steel square can be used for checking the squareness of cabinets. Steel squares are commonly used in woodworking and carpentry for checking the accuracy of right angles and determining squareness. By placing the steel square against the corners of the cabinet, you can easily determine if the cabinet is properly square or if adjustments need to be made. The straight edges of the steel square provide a reliable reference for checking the squareness of cabinets and ensuring their proper alignment.

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