High Quality GB Standard Steel Square Bar 48mm-60mm

High Quality GB Standard Steel Square Bar 48mm-60mm System 1

High Quality GB Standard Steel Square Bar 48mm-60mm

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 10000 m.t/month

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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.

Q:Are square steel, rectangular tube and angle steel shaped or light steel?: Section steel is a kind of strip steel with definite section shape and size.In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.Large steel: large steel, I-beam, channel steel, angle steel and flat steel are hot rolled, round bar, Fang Gang, six angle iron in addition to hot rolling, there are forging, cold drawn and so on.I-beam, channel and angle steel are widely used in industrial buildings and metal structures, such as factories, bridges, ships, agricultural machinery, vehicle manufacturing, transmission towers, transport machinery, often in conjunction with the use of. Flat steel is used as a bridge, a housing, a fence, a transmission ship, a vehicle, etc. on a construction site. Round steel and square steel are used for all kinds of machine parts, agricultural machinery parts, tools and so on.Medium type steel: medium type steel, medium, groove, corner, round, flat steel use, similar to large steel.Small steel: small steel, middle, round, square, flat steel processing and use similar to large steel, small diameter round steel is often used for building steel

Q:Can a steel square be used for measuring door and window openings?: A steel square, also called a framing square or carpenter's square, is a versatile tool widely employed in construction and carpentry. It is capable of measuring door and window openings accurately. This tool typically possesses a 90-degree angle and a lengthier blade, which serves the purpose of measuring and marking straight lines. Additionally, the shorter blade can be utilized for measuring various angles, including 45 degrees or 30 degrees. To ensure precise and square measurements, a steel square can be utilized when measuring door and window openings. By placing it against the edges of the opening, one can determine if they are perfectly perpendicular or if any adjustments are necessary. The width and height of the opening can be measured using the longer blade, while the shorter blade serves to verify if the corners are square. In conclusion, a steel square is a dependable tool that can be used to measure door and window openings, guaranteeing their proper alignment and squareness.

Q:What are some common uses for a steel square in deck construction?: Deck construction relies heavily on the use of a steel square, also known as a framing square, due to its versatility and importance. This tool is primarily utilized for precise angle measurements, markings, and cuts. Several common applications of a steel square in deck construction include: 1. Ensuring square corners: The steel square's 90-degree angle is ideal for guaranteeing that corners are square and properly aligned. Builders can utilize it to assess and adjust the deck's frame corners, ensuring accurate and precise construction. 2. Establishing the deck's layout: A steel square is useful in laying out the deck's perimeter and marking the precise positions for the placement of posts, beams, and joists. It aids in creating straight and parallel lines, resulting in a symmetrical and well-balanced deck structure. 3. Marking and cutting angles: Deck construction often involves cutting angles, especially for stair stringers, joist hangers, and other components. The steel square's accuracy in measuring and marking various angles enables builders to ensure precise cuts that fit together seamlessly. 4. Checking for level and plumb: Builders can employ a steel square to verify if posts and beams are plumb (vertical) and if joists and deck boards are level (horizontal). By aligning the square against the components and utilizing a level, builders can ensure the deck's structure is straight and properly aligned. 5. Measuring and marking dimensions: The long blade and tongue of a steel square allow for accurate measurements and markings. Whether it involves determining the length and width of deck boards, marking out notches, or measuring distances between joists, the steel square provides precise measurements for all deck components. Overall, the steel square is an indispensable tool in deck construction. Its versatility and accuracy in measuring, marking, and checking angles make it an essential asset for guaranteeing a well-built and structurally sound deck.

Q:How accurate are steel squares for measuring angles?: Steel squares are generally very accurate for measuring angles. They are designed with precision and built to strict standards, ensuring that the angles they provide are reliable and consistent. However, their accuracy can be affected by factors such as wear and tear, misuse, or manufacturing defects. Therefore, it is important to regularly check and calibrate steel squares to ensure their accuracy. Overall, when used correctly and maintained properly, steel squares can be highly accurate tools for measuring angles.

Q:Can a steel square be used for welding?: Yes, a steel square can be used for welding. A steel square is a versatile tool commonly used in welding to ensure accurate right angles and precise measurements. It is often used to align and check the squareness of joints, ensuring proper fit-up during welding processes.

Q:Can a steel square be used for measuring the depth of a pond?: No, a steel square cannot be used for measuring the depth of a pond. A steel square is a tool typically used in carpentry and construction for measuring angles and ensuring accuracy in right angles. It does not have the necessary features or design to accurately measure the depth of a pond. To measure the depth of a pond, specialized equipment such as a depth sounder, sonar, or a measuring tape specifically designed for water depths would be more appropriate.

Q:What are the different markings on a steel square and their uses?: A steel square, which is also known as a framing square or carpenter's square, is a tool that is widely used in woodworking, construction, and metalworking due to its versatility. It consists of a long metal blade with markings and a shorter perpendicular blade called the tongue. These markings on a steel square have different purposes and enable accurate measurements, angles, and cuts. Here are some of the most commonly used markings and their functions: 1. Blade Length: The blade is typically marked in inches or centimeters, allowing for quick measurements of length or width. 2. Graduated Scales: These scales, found along the blade and tongue, are often marked in inches or fractions of an inch. They aid in measuring distances, marking points, and performing precise layout work. 3. Rafter Tables: These tables are printed on the blade of the square and provide information for making common rafter cuts. They assist in determining lengths, angles, and pitches for roof framing. 4. Degree Scale: Some steel squares have a protractor-like scale on the tongue, showing degrees ranging from 0 to 90. This scale is utilized to accurately measure and mark angles, particularly when framing or cutting bevels. 5. Squaring: The primary function of a steel square is to check and ensure squareness. The 90-degree angle formed by the blade and tongue allows for precise right-angled cuts, corner layouts, and the squaring of frames and structures. 6. Scribing: Certain squares are designed with a scribing notch or hole near the tip of the tongue. This feature allows the square to be used as a marking or scribing gauge, enabling the creation of parallel lines or the transfer of measurements onto a workpiece. 7. Level: Some steel squares incorporate a built-in level bubble, indicating whether a surface or object is level or plumb. This feature is useful for aligning shelves, cabinets, or other vertical or horizontal installations. In conclusion, the various markings on a steel square facilitate measurements, point marking, angle calculation, and the achievement of accurate and precise cuts in woodworking and construction tasks. This tool's versatility has made it a favorite among carpenters, woodworkers, and DIY enthusiasts alike.

Q:The difference between square and square.: Square tube is kind of square body, many kinds of material can form a square body, most square to steel for the majority, after unpacking, smooth, curly, circular tube is formed by welding, pipe rolling into square tube and then cut into the desired length. Usually 50 bags each. Square pipe in the spot with large specifications in most, in the range of 10*10*0.8-1.5 to 500*500*10-25, square tube by use is divided into structural square tube, decorative square pipe, building square pipe, mechanical square tube, etc..Square tube is a square tube of a name, that is, the length of the same steel pipe. The strip is rolled by process.

Q:Can a steel square be used for fence post layout and installation?: Yes, a steel square can be used for fence post layout and installation. 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 construction tasks, including fence post layout and installation. It is typically made of steel and consists of a long arm and a shorter arm that meet at a 90-degree angle. To use a steel square for fence post layout, you can start by determining the location of the fence posts and marking the positions on the ground. Then, you can use the long arm of the square to ensure that the posts are perfectly aligned by placing it along the marked positions and adjusting as needed. The 90-degree angle of the steel square can be used to ensure that the posts are perpendicular to the ground, resulting in a straight and level fence line. During installation, a steel square can also be used to check the vertical alignment of the fence posts. By holding the square against the side of the posts, you can verify if they are plumb or if adjustments need to be made. This is crucial for the stability and durability of the fence. In summary, a steel square is a reliable and accurate tool that can be used for fence post layout and installation. Its 90-degree angle and straight edges make it ideal for ensuring that the posts are properly aligned and perpendicular to the ground, resulting in a well-constructed and visually appealing fence.

Q:Can a steel square be used for marking out tenon shoulders?: Yes, a steel square can be used for marking out tenon shoulders. A steel square, also known as a try square, is a tool that is commonly used in woodworking for layout and marking purposes. It has a straight edge and a 90-degree angle, which makes it ideal for marking out precise and accurate lines. When marking out tenon shoulders, the steel square can be used to ensure that the lines are perpendicular to the face and edge of the wood, which is essential for a well-fitted tenon joint. The straight edge of the steel square can be aligned with the face and edge of the wood, and then the shoulder lines can be marked along the edge of the square. This ensures that the shoulders of the tenon will be square and straight, resulting in a strong and well-fitted joint.

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