Mild Hot Rolled Steel Square Bars for Structure

Mild Hot Rolled Steel Square Bars for Structure System 1

Mild Hot Rolled Steel Square Bars for Structure

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 200000 m.t./month

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Product Description:

OKorder is offering Mild Hot Rolled Steel Square Bars for Structure at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

Product Applications:

-The Mild Hot Rolled Steel Square Bars for Structure is normally used as structure steel.

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

Product Advantages:

OKorder's Mild Hot Rolled Steel Square Bars for Structure are durable, strong, and resist corrosion.

Main Product Features:

· Premium quality

· Prompt delivery & seaworthy packing (30 days after receiving deposit)

· Corrosion resistance

· Can be recycled and reused

· Mill test certification

· Professional Service

· Competitive pricing

Product Description:

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

Packaging & Delivery of Mild Hot Rolled Steel Square Bars for Structure:

-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.

Mild Hot Rolled Steel Square Bars for Structure

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: Can fit in the containers of 20fts the steel beams of 6M?

A2: No proble, we can put them into the containers in the form sideling.

Q3: The products are invoicing on theoritical weight or on actual weight?

A3: We can do it in both manners, according to the customers' request.

Q: What is the reason that the diameter 130-45 round steel will break after welding?: Steel No. 45 belongs to medium carbon steel. Because of its high carbon content, it has poor weldability, but its comprehensive property is good. If welding is needed, it needs to be preheated before welding and heat treated after welding to reduce its internal stress. The more commonly used weldability is No. 20 steel. In order to improve the performance of No. 20 steel, heat treatment is usually applied to its surface.

Q: What is the maximum elongation of steel round bars?: The maximum elongation of steel round bars may vary based on the particular grade and composition of the steel. Nonetheless, typically, the maximum elongation for steel round bars hovers around 20-30% of their original length. Consequently, these bars can stretch or elongate by up to 20-30% before reaching their breaking point or ultimate tensile strength. It is worth mentioning that this maximum elongation is influenced by several factors, including steel quality, manufacturing process, and any heat treatment employed on the bars. Therefore, it is advisable to refer to the manufacturer's specific specifications and consider the intended application of the steel round bars in order to establish the maximum elongation for a specific case.

Q: Can steel round bars be welded?: Steel round bars can indeed be welded, as welding is a widely employed technique for connecting them. This involves heating the bars to a considerable temperature and subsequently applying pressure to fuse them, resulting in robust and long-lasting connections. Nonetheless, it is crucial to utilize suitable welding techniques and equipment in order to attain a weld of superior quality.

Q: How do steel round bars compare to other materials in terms of strength?: Steel round bars are highly sought after in various industries due to their exceptional strength. When compared to other materials, steel round bars consistently outperform alternative options in terms of strength. This is primarily attributed to the unique properties of steel, such as its high tensile strength and toughness. In contrast to materials like aluminum or plastic, steel round bars offer unparalleled strength and durability. Steel possesses a significantly higher tensile strength, enabling it to withstand greater amounts of tension without deforming or breaking. This characteristic makes steel round bars ideal for applications that necessitate structural support or load-bearing capabilities. Additionally, steel round bars display excellent resistance to bending, shearing, and impact. This resilience allows them to endure heavy loads, vibrations, and external forces, rendering them suitable for use in industries such as construction, automotive, and manufacturing. Moreover, steel's high strength-to-weight ratio makes it an advantageous choice in weight-sensitive applications like aerospace or transportation. Furthermore, steel round bars can be engineered to possess specific properties, such as heat resistance or corrosion resistance. This further enhances their strength and versatility. By alloying steel with elements like chromium or nickel, it can acquire resistance to rust, oxidation, and other forms of deterioration. Consequently, this extends its lifespan and maintains its strength over time. In conclusion, steel round bars excel in terms of strength when compared to other materials. Their exceptional tensile strength, toughness, resistance to bending and impact, and ability to be tailored for specific applications make them a preferred choice in numerous industries.

Q: Why can't the grounding device be replaced by steel bar instead of round steel?: When using the steel structure as the ground, and hidden in concrete ground, in addition to the local connection is not what you said most of the other for round steel, screw steel, is the existence of these 1 steel, is more curved surfaces, easy to discharge. 2, the thread steel belongs to high carbon steel, conductivity is inferior to round steel." The problem? Then the building, simply all alone round or flat! Don't get it, do more beneficial and carp, social progress! Therefore, it is a mistake to use the steel bar instead of round steel to join the bar

Q: Can steel round bars be galvanized?: Indeed, it is possible to galvanize steel round bars. Galvanization is a technique that entails applying a protective zinc coating to the steel surface to prevent corrosion. This technique can be employed on various steel products, including round bars. By galvanizing steel round bars, not only is their resistance to corrosion enhanced, but also their durability and lifespan. The galvanization process entails immersing the round bars in a bath of molten zinc, which adheres to the steel and forms a protective layer. This layer serves as a barrier, safeguarding the steel from moisture, chemicals, and other corrosive elements. Consequently, galvanized steel round bars are extensively used in outdoor applications, such as construction, fencing, and marine environments, where they are exposed to harsh conditions.

Q: What are the different types of steel round bars used in the automotive exhaust systems?: Automotive exhaust systems utilize various types of steel round bars, each possessing distinct characteristics and uses. Let's explore some of the commonly employed varieties: 1. Stainless Steel Round Bars: Renowned for its exceptional resistance to corrosion and high temperatures, stainless steel stands as a favored option for exhaust systems. Its versatility allows for application in both primary and secondary components, including headers, catalytic converters, and mufflers. 2. Carbon Steel Round Bars: Carbon steel represents another frequently employed material in exhaust systems. Its commendable strength and durability render it suitable for various components, such as exhaust pipes and hangers. However, due to its susceptibility to corrosion in comparison to stainless steel, appropriate coating or treatment becomes imperative to prevent rusting. 3. Aluminized Steel Round Bars: Aluminized steel, a form of carbon steel coated with an aluminum-silicon alloy, boasts excellent corrosion resistance and heat reflectivity. These attributes make it an ideal choice for exhaust systems, particularly in exhaust pipes and mufflers, as it aids in heat reduction and enhances overall durability. 4. Titanium Round Bars: Although less commonly utilized due to its substantial cost, titanium serves as an extraordinarily lightweight and durable material, offering exceptional corrosion resistance. In high-performance or specialized exhaust systems, titanium round bars may be incorporated to reduce weight and improve overall performance. Its presence is often observed in exhaust tips and high-end aftermarket exhaust systems. In conclusion, the selection of steel round bars for automotive exhaust systems hinges on various factors, including cost, performance requirements, and specific application needs. Manufacturers meticulously choose the appropriate steel type to ensure longevity, efficiency, and compliance with emissions regulations.

Q: What are the different machining processes used for steel round bars?: There are several machining processes commonly used for steel round bars, depending on the desired outcome and specifications of the project. Some of the most common machining processes for steel round bars include: 1. Turning: Turning is a machining process where the round bar is rotated and a cutting tool is used to remove material, creating a desired shape or size. This process is commonly used to reduce the diameter of the round bar or to create precision cylindrical shapes. 2. Drilling: Drilling involves creating holes in the steel round bar using a rotating cutting tool called a drill bit. This process is often used to create holes for bolts, screws, or other fasteners. 3. Milling: Milling is a machining process that involves removing material from the surface of the steel round bar using a rotating cutting tool with multiple teeth. This process is used to create flat surfaces, grooves, or complex shapes on the round bar. 4. Grinding: Grinding is a process where abrasive particles are used to remove material from the steel round bar, creating a smooth surface finish or achieving specific tolerances. It is commonly used to refine the surface finish or to remove any imperfections. 5. Thread rolling: Thread rolling is a process used to create external threads on the steel round bar. A hardened steel die is pressed against the rotating round bar, causing the material to flow and form the desired threads. 6. Cold drawing: Cold drawing is a process where the steel round bar is pulled through a die to reduce its diameter and improve its surface finish. This process is used to create precise dimensions and improve the mechanical properties of the steel round bar. 7. Heat treatment: Heat treatment is not a machining process itself, but it is often used in conjunction with machining to enhance the properties of the steel round bar. Heat treatment processes such as annealing, quenching, and tempering can be used to improve hardness, strength, and toughness. These are just a few of the many machining processes that can be used for steel round bars. The specific process chosen will depend on factors such as the desired shape, size, surface finish, and mechanical properties required for the application.

Q: What are the factors to consider when selecting a steel round bar for a specific application?: When selecting a steel round bar for a specific application, there are several important factors to consider. 1. Material Grade: The first factor to consider is the material grade of the steel round bar. Different grades of steel have varying properties, such as strength, hardness, and corrosion resistance. It is crucial to choose a material grade that is suitable for the specific application's requirements. 2. Mechanical Properties: The mechanical properties of the steel round bar, such as tensile strength, yield strength, and elongation, need to be evaluated. These properties determine the bar's ability to withstand forces and deformations under load. The selected steel round bar should have mechanical properties that match the demands of the application. 3. Size and Dimensions: The size and dimensions of the steel round bar are crucial considerations. This includes the diameter, length, and tolerance requirements. The dimensions should be chosen based on the application's structural requirements and the intended load-bearing capacity of the bar. 4. Surface Finish: The surface finish of the steel round bar is significant, especially for applications involving aesthetics or contact with other components. Considerations such as smoothness, roughness, and the presence of any coatings or treatments should be taken into account. 5. Corrosion Resistance: Depending on the application's environment, it is essential to select a steel round bar with adequate corrosion resistance. Factors such as exposure to moisture, chemicals, or extreme temperatures can affect the bar's longevity and performance. Stainless steel or corrosion-resistant coatings can be chosen to enhance the bar's resistance to corrosion. 6. Machinability: If the steel round bar needs to be machined or fabricated into a specific shape, its machinability must be considered. Some steel grades are easier to machine, while others may require more advanced tools or techniques. The machinability of the selected bar should align with the desired manufacturing processes. 7. Cost: Finally, the cost of the steel round bar should be considered. Different material grades and specifications come with varying price points. It is important to balance the required properties and performance with the project's budget constraints. Overall, selecting a steel round bar for a specific application requires careful evaluation of the material grade, mechanical properties, size, surface finish, corrosion resistance, machinability, and cost. By considering these factors, one can ensure that the chosen steel round bar will meet the application's requirements and deliver optimal performance.

Q: How do steel round bars perform under vibration or resonance?: Steel round bars have excellent performance under vibration or resonance due to their high strength and stiffness. They are able to withstand and absorb vibrations, minimizing the risk of failure or damage. Additionally, steel round bars possess good damping properties, which helps in dissipating energy and reducing the amplitude of vibrations, resulting in improved stability and reduced noise levels.

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