high quality square steel bar

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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 checking the alignment of fence posts?: Yes, a steel square can be used for checking the alignment of fence posts. A steel square is a versatile tool that can be used for various measuring and marking tasks, including checking the alignment of fence posts. By placing the steel square against the side of the post and using it as a guide, you can ensure that the post is perfectly upright and aligned. The right angle and straight edges of the steel square make it an ideal tool for this purpose, allowing you to easily determine if the post is leaning or misaligned.

Q:Can a steel square be used for layout work?: Layout work can indeed make use of a steel square. Known as combination squares, these versatile tools find frequent application in woodworking and metalworking for the purpose of angle measurement, squareness checking, and straight line marking. Typically, one edge of the square forms a 90-degree angle, while the head can be adjusted or slid to accurately measure and mark angles other than 90 degrees. With its steel construction, this square guarantees durability and precision, rendering it a dependable tool for layout work.

Q:Can a steel square be used for checking the plumbness of a wall stud?: No, a steel square cannot be used for checking the plumbness of a wall stud. A steel square, also known as a carpenter's square, is mainly used for measuring and marking right angles in woodworking projects. It is not designed or calibrated for checking plumbness. To check the plumbness of a wall stud, a level or plumb bob is typically used. These tools are specifically designed to ensure vertical alignment and are more accurate for this particular task.

Q:How do you use a steel square to measure and mark 11.25-degree angles?: To measure and mark 11.25-degree angles using a steel square, you can start by aligning one leg of the square with the reference edge of the material you want to mark. Then, rotate the square until the other leg intersects the desired angle on the scale. Finally, use a pencil or scribe to mark the intersection point, indicating the 11.25-degree angle.

Q:Can a steel square be used for checking the alignment of a jointer table?: Certainly, a steel square has the capability to verify the alignment of a jointer table. This tool, known for its versatility, serves multiple purposes in woodworking, one of which is assessing the alignment of machinery. To evaluate the jointer table's alignment, simply position the steel square against both the fence and table of the jointer, ensuring absolute perpendicularity. This step will enable you to ascertain whether the jointer table is correctly aligned or necessitates adjustments. It is crucial to employ a top-notch steel square that guarantees precision and dependability for accurate outcomes.

Q:Can a steel square be used for checking the squareness of a shaper fence?: Yes, a steel square can be used for checking the squareness of a shaper fence.

Q:How do you use a steel square to measure and mark 60-degree angles?: To measure and mark 60-degree angles using a steel square, first, align one edge of the square with the base of the angle you want to measure. Then, rotate the square until the adjacent side is aligned with one of the square's edges. Finally, mark the point where the other edge of the square intersects with the angle's base.

Q:Can a steel square be used for layout and design work?: Yes, a steel square can be used for layout and design work. Steel squares are commonly used in carpentry and metalworking to ensure accurate measurements and right angles. They are versatile tools that can be used for various layout and design tasks, such as marking and checking angles, laying out perpendicular lines, and measuring distances. Their durability and precision make them suitable for both professional and DIY projects.

Q:Can a steel square be used for checking the alignment of a wall frame?: Yes, a steel square can be used for checking the alignment of a wall frame.

Q:Can a steel square be used for checking the squareness of picture hanging systems?: Indeed, the squareness of picture hanging systems can be assessed using a steel square. Within the realms of carpentry and woodworking, a steel square serves as a frequently employed instrument to guarantee precision and squareness. Sporting a right angle structure, this tool furnishes a trustworthy point of reference for measurement and squareness assessment. By juxtaposing the steel square with the boundaries of the picture hanging system, one can ascertain whether it is suitably aligned and perpendicular to the wall.

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