ANGLE STEEL 30-250MM
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
Angle Steel Details:
Minimum Order Quantity: | 25mtons | Unit: | m.t. | Loading Port: | China Main Port |
Supply Ability: | 80000-100000MTS/YEAR | Payment Terms: | TT or LC |
Product Description:
Specifications of Angle Steel
1. Invoicing on theoretical weight or actual weight as customer request
2. Length: 6m, 9m, 12m as following table
3. Sizes
Sizes: 25mm-250mm | ||
a*t | ||
25*2.5-4.0 | 70*6.0-9.0 | 130*9.0-15 |
30*2.5-6.6 | 75*6.0-9.0 | 140*10-14 |
36*3.0-5.0 | 80*5.0-10 | 150*10-20 |
38*2.3-6.0 | 90*7.0-10 | 160*10-16 |
40*3.0-5.0 | 100*6.0-12 | 175*12-15 |
45*4.0-6.0 | 110*8.0-10 | 180*12-18 |
50*4.0-6.0 | 120*6.0-15 | 200*14-25 |
60*4.0-8.0 | 125*8.0-14 | 250*25 |
5. Payment terms:
1).100% irrevocable L/C at sight.
2).30% T/T prepaid and the balance against the copy of B/L.
3).30% T/T prepaid and the balance against L/C
6.Material details:
Alloy No | Grade | Element (%) | | ||||
C | Mn | S | P | Si | | ||
| |||||||
|
|
|
|
|
|
| |
Q235 | B | 0.12—0.20 | 0.3—0.7 | ≤0.045 | ≤0.045 | ≤0.3 | |
|
|
|
|
|
|
| |
Alloy No | Grade | Yielding strength point( Mpa) | | ||||
Thickness (mm) | | ||||||
≤16 | >16--40 | >40--60 | >60--100 | | |||
≥ | | ||||||
|
|
|
|
|
| | |
Q235 | B | 235 | 225 | 215 | 205 | | |
Alloy No | Grade | Tensile strength (Mpa) | Elongation after fracture (%) | | |||
Thickness (mm) | | ||||||
| ≤16 | >16--40 | >40--60 | >60--100 | | ||
≥ | | ||||||
|
|
|
|
|
|
| |
Q235 | B | 375--500 | 26 | 25 | 24 | 23 | |
Usage & Applications of Angle Steel
According to the needs of different structures, Angle can compose to different force support component, and also can be the connections between components. It is widely used in various building structures and engineering structures such as roof beams, bridges, transmission towers, hoisting machinery and transport machinery, ships, industrial furnaces, reaction tower, container frame and warehouse etc.
Packaging & Delivery of Angle Steel
1. Packing: it is nude packed in bundles by steel wire rod
2. Bundle weight: not more than 3.5MT for bulk vessel; less than 3 MT for container load
3. Marks:
Color marking: There will be color marking on both end of the bundle for the cargo delivered by bulk vessel. That makes it easily to distinguish at the destination port.
Tag mark: there will be tag mark tied up on the bundles. The information usually including supplier logo and name, product name, made in China, shipping marks and other information request by the customer.
If loading by container the marking is not needed, but we will prepare it as customer request.
Production flow of Angle Steel
Material prepare (billet) —heat up—rough rolling—precision rolling—cooling—packing—storage and transportation
- Q:What are the different methods of joining steel rebars?
- There are several methods of joining steel rebars, each with its own advantages and disadvantages. Here are the most common methods: 1. Lap Splicing: This is the most common method of joining rebars. In lap splicing, two rebars are overlapped and tied together using wire or metal ties. This method is simple and cost-effective, but it requires longer lap lengths to achieve the required strength. 2. Mechanical Splicing: Mechanical splicing involves joining rebars using mechanical couplers or splices. These couplers are designed to provide a strong and reliable connection between the rebars. Mechanical splicing offers quicker installation and reduces the need for lap lengths. However, it may be more expensive than lap splicing. 3. Welding: Welding is another method of joining steel rebars. In this process, the rebars are heated and fused together using electric arcs or gas flames. Welding provides a strong and permanent connection, but it requires skilled labor and specialized equipment. It is commonly used in precast concrete applications. 4. Bolted Connections: Bolted connections involve using bolts and nuts to connect the rebars. This method provides a flexible and adjustable connection, making it suitable for certain applications. However, bolted connections require additional hardware and may not be as strong as other methods. 5. Adhesive Bonding: Adhesive bonding involves using epoxy or other adhesives to join rebars. The adhesive is applied to the rebars, and they are pressed together until the adhesive cures and forms a strong bond. Adhesive bonding offers a clean and aesthetically pleasing finish, but it may not be as strong as other methods and is more suitable for non-structural applications. It is important to note that the choice of joining method depends on factors such as the specific project requirements, structural design, and construction techniques. Consulting with structural engineers and following industry standards and codes is crucial to ensure the proper selection and implementation of the joining method for steel rebars.
- Q:What is the purpose of steel rebars in construction?
- The purpose of steel rebars in construction is to provide reinforcement and strength to concrete structures, preventing cracking and ensuring stability.
- Q:What are the advantages of using composite steel rebars?
- There are several advantages to using composite steel rebars in construction projects. Firstly, composite steel rebars offer superior strength and durability compared to traditional rebars. The combination of steel and a fiber-reinforced polymer (FRP) composite material provides enhanced tensile strength, allowing for a more robust and resilient structure. This is particularly advantageous in areas with high seismic activity or extreme weather conditions, where the reinforcement needs to withstand significant forces. Secondly, composite steel rebars are highly corrosion-resistant. Steel rebars alone are prone to corrosion when exposed to moisture and chemicals, leading to structural degradation over time. The addition of a protective FRP composite layer effectively shields the steel from these corrosive elements, prolonging the lifespan of the reinforcement and reducing the need for frequent maintenance. Moreover, composite steel rebars offer a lightweight alternative to conventional steel reinforcement. The use of FRP composites significantly reduces the weight of the rebars while maintaining their structural integrity. This lightweight characteristic makes transportation and installation easier, reducing construction time and costs. Additionally, composite steel rebars provide excellent electrical and thermal insulation properties. Unlike traditional steel rebars, which are conductive, the FRP composite layer acts as an insulator, minimizing the risk of electrical hazards and preventing the transfer of heat. This is especially beneficial in structures where electrical or thermal conductivity needs to be controlled, such as in power plants or buildings with sensitive equipment. Lastly, composite steel rebars are environmentally friendly. The production of steel rebars typically requires a significant amount of energy and emits greenhouse gases. By utilizing FRP composites, the overall carbon footprint of the reinforcement is reduced, making it a more sustainable choice. In conclusion, the advantages of using composite steel rebars include enhanced strength, corrosion resistance, lightweight construction, electrical and thermal insulation, and environmental sustainability. These benefits make composite steel rebars a compelling choice for various construction applications.
- Q:What are the guidelines for using steel rebars in pre-stressed or post-tensioned concrete elements?
- Several key considerations must be taken into account when using steel rebars in pre-stressed or post-tensioned concrete elements to ensure structural integrity and performance. 1. Design and Engineering: The initial step is to consult with a qualified structural engineer who specializes in pre-stressed or post-tensioned concrete design. They will determine the specific project's requirements for rebars, including size, spacing, and type, based on the structural loads, design requirements, and desired performance. 2. Material Selection: The rebars used in pre-stressed or post-tensioned concrete elements should adhere to industry standards, such as ASTM A615 or ASTM A706 for reinforcing steel. The rebars should possess adequate strength, ductility, and corrosion resistance to withstand environmental conditions and stress. 3. Placement and Anchorage: Precise placement and anchoring of the rebars within the concrete elements are necessary. The requirements for placement and anchorage will depend on the project's design and engineering specifications. Proper alignment and secure fastening of the rebars are crucial to ensure effective force transfer to the concrete. 4. Tensioning Process: In pre-stressed concrete elements, the rebars are tensioned before pouring the concrete. Specialized jacks or hydraulic systems are used to apply a predetermined amount of force to the rebars. Careful control of the tensioning force is vital to achieving the desired level of pre-stress without overloading the rebars or damaging the concrete. 5. Post-Tensioning: For post-tensioned concrete elements, the rebars are tensioned after the concrete has hardened. This involves passing the rebars through ducts or sleeves within the concrete and applying tension using hydraulic jacks. The post-tensioning force must be carefully calibrated to achieve the desired structural performance without excessive strain on the rebars or the concrete. 6. Quality Control and Inspection: Throughout the construction process, regular quality control and inspection are essential to ensure compliance with design specifications and industry standards. This includes verifying correct placement, alignment, and tensioning of the rebars, as well as checking for any defects or damage. 7. Maintenance and Durability: Proper maintenance is crucial for the long-term durability and performance of pre-stressed or post-tensioned concrete elements. This may involve periodic inspections, maintaining protective coatings, and addressing corrosion or deterioration promptly. By adhering to these guidelines, construction professionals can ensure the safe and effective use of steel rebars in pre-stressed or post-tensioned concrete elements, resulting in structurally sound and durable concrete structures.
- Q:Can steel rebars be used in marine construction?
- Yes, steel rebars can be used in marine construction. They are commonly used as reinforcement in concrete structures to provide strength and durability. However, it is important to use corrosion-resistant steel rebars, such as stainless steel or epoxy-coated rebars, to prevent corrosion due to exposure to saltwater.
- Q:What are the precautions to be taken while welding steel rebars?
- When welding steel rebars, there are several precautions that need to be taken. First and foremost, it is crucial to wear appropriate personal protective equipment such as a welding helmet, gloves, and a protective apron to shield against sparks, heat, and UV radiation. Additionally, proper ventilation in the work area is necessary to prevent the accumulation of harmful fumes and gases. It is important to ensure that the rebar is clean and free from any contaminants or coatings that could affect the quality of the weld. Welding should only be performed by trained and qualified individuals who understand the specific techniques and settings required for welding rebars. Finally, regular inspections of the welds should be conducted to ensure their integrity and strength.
- Q:Can steel rebars be used in structures with limited construction technology?
- Yes, steel rebars can be used in structures with limited construction technology. Steel rebars are commonly used as reinforcement in concrete structures to enhance their strength and durability. They are versatile and can be easily incorporated into various construction techniques, making them suitable for structures with limited technology. Additionally, steel rebars offer superior resistance to load and can withstand harsh environmental conditions, ensuring the structural integrity of the building even with limited construction technology.
- Q:What are the different types of steel rebars used in high-rise buildings?
- There are several types of steel rebars that are commonly used in high-rise buildings due to their strength and durability. These include: 1. Mild Steel Rebars: Also known as black bars, these are the most commonly used type of rebars in construction. They have a low carbon content and are easily weldable, making them ideal for reinforcing concrete structures. 2. High Strength Deformed (HSD) Steel Rebars: These rebars have a higher tensile strength than mild steel rebars. They are made by cold twisting or stretching the mild steel bars, resulting in a deformed pattern on the surface that provides better bonding with concrete. 3. Corrosion-Resistant Steel Rebars: In high-rise buildings located in coastal areas or regions with high humidity, corrosion-resistant steel rebars are used to prevent rust and deterioration. These rebars are coated with epoxy or galvanized to protect them from moisture and corrosive elements. 4. Carbon Steel Rebars: These rebars are made of carbon steel and have a higher carbon content than mild steel rebars. They offer excellent tensile strength and are often used in high-rise buildings where additional reinforcement is required. 5. Stainless Steel Rebars: Stainless steel rebars are highly resistant to corrosion and can withstand extreme weather conditions. They are commonly used in high-rise buildings that require long-term durability and protection against rust. 6. TMT (Thermo-Mechanically Treated) Steel Rebars: TMT rebars are manufactured by subjecting mild steel bars to a combination of heat treatment and mechanical deformation. This process imparts superior strength and ductility to the rebars, making them suitable for high-rise buildings where seismic resistance is crucial. Each type of steel rebar has its own specific properties and advantages, allowing engineers and construction professionals to choose the most appropriate type based on the requirements and specifications of the high-rise building project.
- Q:Are there any standards or specifications for steel rebars?
- Yes, there are several standards and specifications for steel rebars. The most widely recognized standards for steel rebars include ASTM A615/A615M, ASTM A706/A706M, and BS 4449:2005+A2:2009. These standards provide guidelines on the composition, mechanical properties, dimensions, and tolerances of steel rebars, ensuring their quality and performance in construction applications. The standards also cover requirements for testing, marking, and certification of steel rebars to ensure compliance with industry standards and regulations.
- Q:How do steel rebars affect the overall crack width of concrete structures?
- The crack width of concrete structures is affected by steel rebars in various ways. Primarily, the reinforcement provided by rebars strengthens the concrete, increasing its resistance to cracking. This reinforcement helps distribute the tensile forces within the concrete, preventing cracks from spreading and widening. When the concrete is subjected to tensile stress, the rebars bear a significant portion of the load, reducing stress on the concrete itself and minimizing crack formation. Furthermore, the use of rebars influences the spacing and size of cracks in concrete structures. Engineers can control the crack width by incorporating rebars at specific intervals and in appropriate sizes. The rebars act as barriers that limit crack width by resisting the tensile forces exerted on the concrete. This is especially important in structures exposed to heavy loads or external forces, as it preserves the structural integrity and durability of the concrete. Moreover, steel rebars impact the propagation of cracks in concrete structures. In the event of cracks, rebars prevent their further extension. They serve as anchors, holding the cracked sections of concrete together and preventing crack spread. This is essential for ensuring overall structural stability and reducing the risk of structural failure. To summarize, steel rebars play a crucial role in influencing the overall crack width of concrete structures. They enhance concrete strength, distribute tensile forces, regulate crack spacing and size, and inhibit crack propagation. By incorporating rebars into concrete structures, engineers can effectively manage and diminish crack formation and severity, ensuring the longevity and safety of the structures.
1. Manufacturer Overview |
|
---|---|
Location | |
Year Established | |
Annual Output Value | |
Main Markets | |
Company Certifications |
2. Manufacturer Certificates |
|
---|---|
a) Certification Name | |
Range | |
Reference | |
Validity Period |
3. Manufacturer Capability |
|
---|---|
a)Trade Capacity | |
Nearest Port | |
Export Percentage | |
No.of Employees in Trade Department | |
Language Spoken: | |
b)Factory Information | |
Factory Size: | |
No. of Production Lines | |
Contract Manufacturing | |
Product Price Range |
Send your message to us
ANGLE STEEL 30-250MM
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
Similar products
New products
Hot products
Hot Searches
Related keywords