high quality square steel bar

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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
GB	Q195	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
GB	Q235B	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
Length of a side(mm)	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: Can a steel square be used for deck-building projects?: Deck-building projects can utilize a steel square, which is also referred to as a framing square or rafter square. This tool, commonly used in construction, is made of heavy-duty steel and is equipped with various measurements and angles. The steel square serves multiple functions in accurate deck construction. It allows for the measurement and marking of straight lines, angles, and cuts. By using the steel square, the deck's initial design can be laid out precisely, ensuring precise dimensions and square corners. This tool is especially beneficial for framing and joist layout, as well as for determining stair height and pitch. Furthermore, the steel square acts as a guide for making straight cuts with a circular saw or handsaw. It guarantees that the cuts are both straight and square, resulting in a professional appearance for the deck. Additionally, it assists in marking and drilling holes for screws or nails, ensuring proper alignment. To summarize, the steel square is an essential tool for deck-building projects. Its durability, versatility, and accuracy make it invaluable to both DIY enthusiasts and professional contractors.

Q: How do you make precise measurements with a steel square?: In order to achieve accurate measurements using a steel square, it is necessary to follow a few important steps. Firstly, it is crucial to guarantee that the steel square is clean and devoid of any debris or rust that may impact its precision. Subsequently, position the square flatly and in the appropriate alignment on the surface or object that requires measuring. To measure angles, utilize the 90-degree corner of the square as a point of reference. Align one side of the square with the desired edge to be measured and examine the angle measurement on the scale or protractor found on the opposite side of the square. Ensure that the square is flawlessly aligned without any gaps or overlaps between the square and the edges. For measuring lengths, the longer side of the square can be employed as a ruler. Align one end of the square with the starting point of the length to be measured and read the measurement on the scale or ruler located on the longer side. Once again, guarantee that the square is correctly aligned without any gaps or overlaps. To attain more precise measurements, employ a marking tool such as a pencil or scribe to directly mark the desired measurement on the object. This will aid in maintaining accuracy when transferring the measurement to other surfaces or during cutting or shaping processes. In conclusion, the key to achieving precise measurements with a steel square is to ensure proper alignment, eliminate any gaps or overlaps, and thoroughly verify all measurements prior to proceeding with any subsequent steps.

Q: Can a steel square be used for cabinet making?: Yes, a steel square can be used for cabinet making. A steel square, also known as a framing square or carpenter's square, is a versatile tool that is commonly used in woodworking. While it is not specifically designed for cabinet making, it can still be effectively used for various tasks in the cabinet making process. A steel square is typically made of durable steel and consists of two arms, one longer than the other, that meet at a right angle. It is used to mark and measure angles, check for squareness, and ensure accurate and precise cuts. These features make it an essential tool for cabinet making. When building cabinets, a steel square can be used to determine and mark the correct angles and measurements for cutting and joining the cabinet components, such as the panels, shelves, and doors. It can help ensure that the cabinet is square and properly aligned, resulting in a well-built and structurally sound piece of furniture. Additionally, a steel square can be used to check the squareness of corners and joints, ensuring that they are perfectly 90 degrees. This is crucial for achieving a professional and seamless finish in cabinet making. Although there are specialized tools available for specific tasks in cabinet making, a steel square is a versatile and cost-effective option that can be used for a wide range of measurements and marking purposes. It is a tool that is commonly found in the toolbox of both amateur and professional cabinet makers alike.

Q: How do you use a steel square to create bevel cuts?: To use a steel square for bevel cuts, first, mark the desired angle on the square's blade. Then, position the square on the workpiece, aligning the blade with the marked angle. Next, hold the square firmly in place and use a saw or a similar cutting tool to make the bevel cut along the edge of the square. Finally, ensure smooth and precise cuts by following the marked line while carefully guiding the tool.

Q: How do you use a steel square to measure and mark 67.5-degree angles?: To use a steel square to measure and mark a 67.5-degree angle, you would align the long edge of the square with the baseline of the angle and then adjust the square until the angle indicator (usually located at the corner of the square) reaches 67.5 degrees. Once aligned, you can then use the square to mark the desired angle accurately.

Q: How do you use a steel square to measure the width of a shelf?: To use a steel square to measure the width of a shelf, align one edge of the square with the side of the shelf. Then, extend the square until the other edge reaches the opposite side of the shelf. Finally, read the measurement marked on the square to determine the width of the shelf.

Q: How do you use a steel square to determine the angle of a compound cove cut?: To use a steel square to determine the angle of a compound cove cut, you would first place the steel square against the edge of the material being cut. Then, you would align one side of the square with the straight edge of the material and the other side with the curved edge. By measuring the angle formed between the straight edge and the curved edge using the markings on the steel square, you can determine the angle of the compound cove cut.

Q: Can a steel square be used for metalworking tasks?: Yes, a steel square can be used for metalworking tasks. A steel square, also known as a framing square or carpenter's square, is a versatile tool that can be used for measuring, marking, and checking right angles in metalworking projects. It is commonly used for layout work, marking reference lines, and ensuring accurate angles while cutting or fabricating metal pieces.

Q: The difference between the steel chrome and paint: General steel can paint and painting the door company most paint steel, but you must ask whether to do heat treatment, because the paint is paint backward Hongfang heating paint drying process.

Q: What is the weight of a typical steel square?: The weight of a typical steel square can vary depending on its dimensions, but it is generally calculated by multiplying the density of steel (usually around 7850 kg/m^3) by the volume of the square.

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