high quality angle steel 20-250mm ASTM A36

high quality angle steel 20-250mm ASTM A36 System 1

high quality angle steel 20-250mm ASTM A36

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000 m.t./month

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Angle steel Details:

Minimum Order Quantity:		Unit:	m.t	Loading Port:
Supply Ability:		Payment Terms:		Package:	bundle

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

Angle Steel

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
		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 (%)
		Tensile strength (Mpa)	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 surface protection for steel angles?: There are several different methods of surface protection for steel angles, each with its own advantages and disadvantages. 1. Painting: One of the most common methods of surface protection is painting. This involves applying a layer of paint to the steel angle to create a barrier between the steel and the surrounding environment. Paint can provide both aesthetics and protection against corrosion. However, it may require regular maintenance and can be prone to chipping or peeling over time. 2. Galvanization: Galvanization is a process where a layer of zinc is applied to the surface of the steel angle. This creates a protective barrier that helps prevent corrosion. Galvanization can be done through either hot-dip galvanizing or electro-galvanizing. Hot-dip galvanizing involves immersing the steel angle in a bath of molten zinc, while electro-galvanizing uses an electrical current to deposit zinc onto the surface. Galvanized steel angles are highly resistant to rust and can provide long-lasting protection. 3. Powder coating: Powder coating is a dry finishing process where a fine powder is electrostatically applied to the surface of the steel angle. The powder is then cured under heat to form a hard, durable coating. Powder coating provides excellent protection against corrosion, impacts, UV rays, and chemicals. It also offers a wide range of color options and a smooth, attractive finish. However, it can be more expensive than other methods and requires specialized equipment for application. 4. Epoxy coating: Epoxy coatings are a type of protective finish made from epoxy resins. These coatings are highly resistant to chemicals, impacts, and abrasions. They provide a tough, glossy finish that can withstand harsh environments. Epoxy coatings are typically applied through a two-part system, where a resin and a hardener are mixed together before being applied to the steel angle. While epoxy coatings provide excellent protection, they can be more expensive and time-consuming to apply. 5. Metal plating: Metal plating involves covering the steel angle with a layer of metal such as chrome, nickel, or zinc. This provides a decorative finish as well as protection against corrosion. Metal plating can be done through electroplating or electroless plating processes. Electroplating uses an electrical current to deposit a thin metal layer onto the surface, while electroless plating does not require electricity and utilizes a chemical reaction to achieve the plating. Metal plating can enhance the appearance and durability of steel angles, but it may not be as effective in highly corrosive environments.

Q: Can steel angles be used for manufacturing equipment frames?: Indeed, the utilization of steel angles in the fabrication of equipment frames is possible. Their strength, durability, and versatility render steel angles frequently employed in construction and manufacturing fields. By providing structural support and stability, they prove to be an optimal choice for the design and construction of equipment frames. The ease with which steel angles can be welded or bolted together enables the creation of rigid and robust frame structures. Moreover, their ability to be cut into specific lengths and shapes allows for precise assembly and customization. In conclusion, the reliability and cost-effectiveness of steel angles make them a favored selection for the manufacturing of equipment frames.

Q: What's the chemical reaction between stainless steel and galvanized angle iron?: Stainless steel and galvanized steel angle, if it is bolted, it is best to add non absorbent insulation gasket.

Q: Can steel angles be used for manufacturing bike racks?: Yes, steel angles can be used for manufacturing bike racks. Steel angles provide strength and durability, making them suitable for supporting the weight of multiple bicycles. Additionally, steel angles can be easily welded or bolted together to create a sturdy frame for the bike rack. The versatility of steel angles allows for customization and design flexibility to accommodate different types and sizes of bicycles. Furthermore, steel angles can withstand outdoor conditions and are resistant to rust and corrosion, ensuring the longevity of the bike rack. Overall, steel angles are a reliable and practical choice for manufacturing bike racks.

Q: Can steel angles be used for manufacturing machinery?: Yes, steel angles can be used for manufacturing machinery. Steel angles provide structural support and can be used as framing members, braces, or brackets in machinery construction. They offer high strength, durability, and versatility, making them suitable for various industrial applications.

Q: What is the maximum bending moment for a steel angle?: The maximum bending moment for a steel angle depends on various factors such as the dimensions, material properties, and loading conditions. It cannot be determined without specific information about the angle and the forces acting on it.

Q: What is the cost of steel angles compared to other structural materials?: The cost of steel angles compared to other structural materials can vary depending on factors such as the specific type of material, market conditions, and quantity needed. However, generally speaking, steel angles tend to be a cost-effective choice for structural applications due to their durability, strength, and versatility.

Q: What are the different methods for protecting steel angles from corrosion?: There are several methods for protecting steel angles from corrosion, including the use of protective coatings such as paint or galvanization, applying corrosion inhibitors, using sacrificial anodes, implementing cathodic protection systems, and regular maintenance and inspection of the angles to identify and address any potential corrosion issues.

Q: What are the design considerations for using steel angles in architectural applications?: When considering the use of steel angles in architectural applications, there are several important design considerations to keep in mind. First and foremost, it is crucial to understand the structural requirements of the application. Steel angles can provide excellent strength and stability, but their suitability for a particular design will depend on factors such as the load-bearing capacity needed and the structural stability required. It is important to consult with a structural engineer to determine the appropriate size, shape, and thickness of the steel angles to ensure they can safely support the intended loads. Another consideration is the aesthetic appeal of the steel angles. While they are primarily chosen for their structural properties, they can also contribute to the overall design and visual impact of a building. Architects can choose from a variety of finishes, including painted, galvanized, or even stainless steel angles, to achieve the desired look. The shape and arrangement of the angles can also be used creatively to enhance the architectural design and create unique visual effects. Durability is another important design consideration. Steel angles are known for their strength and resistance to corrosion, which makes them suitable for various architectural applications. However, depending on the environmental conditions, additional protective measures may be required to prevent rusting or deterioration over time. This can include applying protective coatings or ensuring proper drainage to prevent water accumulation. Ease of fabrication and installation is also an essential consideration. Steel angles can be easily fabricated into various shapes and sizes, allowing for flexibility in design. They can be cut, welded, or bent to meet the specific requirements of the architectural application. Additionally, their standardized sizes and availability make them relatively easy to source and install. Finally, cost considerations should not be overlooked. Steel angles are generally cost-effective compared to other structural materials, such as wood or concrete. However, the overall cost will depend on factors such as the size, finish, and quantity of steel angles required. It is important to strike a balance between the desired design and the available budget. In conclusion, when considering the use of steel angles in architectural applications, it is essential to carefully assess the structural requirements, aesthetics, durability, ease of fabrication and installation, and cost considerations. By taking these design considerations into account, architects can make informed decisions and ensure the successful integration of steel angles into their designs.

Q: How do you prevent welding distortion in steel angles?: To prevent welding distortion in steel angles, there are several strategies that can be employed: 1. Proper welding technique: Ensure that the welding parameters, such as voltage, current, and travel speed, are correctly set to control the heat input. This helps to prevent excessive heating of the steel angles, which can lead to distortion. 2. Pre-weld preparation: Properly prepare the steel angles before welding by cleaning the surfaces to remove any dirt, oil, or rust. Additionally, bevel the edges of the angles to create a V-groove joint. This allows for better penetration and reduces the chances of distortion. 3. Tack welding: Use tack welds to temporarily hold the steel angles in place before the final welding. These tack welds should be strategically placed to evenly distribute the stresses during welding and minimize distortion. 4. Weld sequence: Determine the most suitable weld sequence for the specific joint configuration. Start welding from the center and progress outwards, alternating sides to balance the heat input. This helps to avoid localized overheating and subsequent distortion. 5. Fixturing: Utilize fixtures or clamps to hold the steel angles in place during welding. This ensures that they remain in the correct position and minimizes the chances of distortion caused by movement or displacement during the welding process. 6. Preheating and post-weld heat treatment: In some cases, preheating the steel angles before welding can help reduce the risk of distortion. Similarly, applying controlled post-weld heat treatment may relieve residual stresses and minimize distortion. 7. Welding sequence control: If the steel angles are part of a larger assembly, consider adjusting the welding sequence to minimize distortion. This involves welding in a specific order to balance the shrinkage forces and reduce the overall distortion of the assembly. By implementing these measures, welding distortion in steel angles can be effectively prevented, resulting in high-quality welds and ensuring the structural integrity of the fabricated components.

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