ASTM A36 high quality angle steel 20-250mm

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

ASTM A36 high quality angle steel 20-250mm

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 200000 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: Can steel angles be used for door frames?: Yes, steel angles can be used for door frames. Steel angles are commonly used in construction for their strength and durability. They provide a solid and stable support for the door frame, ensuring its stability and longevity. Additionally, steel angles can be easily customized and cut to fit the required dimensions of the door frame. They are also resistant to warping, rotting, and termite damage, making them an ideal choice for door frames. Overall, steel angles offer a reliable and practical solution for door frame construction.

Q: Can steel angles be used for signage or billboards?: Signage or billboards can indeed utilize steel angles. Due to their versatility and durability, steel angles prove suitable for a range of purposes, including signage and billboards. By offering structural support and stability, they ensure the signage or billboard stays firmly in position. Moreover, steel angles are highly customizable and can be fabricated to accommodate precise design specifications. With the ability to be painted or coated, they can enhance their aesthetic appeal and safeguard against corrosion, guaranteeing long-lasting and resilient outdoor installations. In summary, steel angles serve as a dependable and pragmatic option for signage and billboards.

Q: What are the standard dimensions of steel angles?: The standard dimensions of steel angles vary depending on the specific type of angle, such as equal or unequal angle. In general, the standard dimensions of steel angles are measured by the length of each leg and the thickness of the material. Equal steel angles typically have equal legs, meaning both sides of the angle are of equal length. The standard dimensions for equal steel angles range from 20mm x 20mm x 3mm to 200mm x 200mm x 24mm. These measurements refer to the length of each leg and the thickness of the angle. Unequal steel angles, on the other hand, have legs of different lengths. The standard dimensions for unequal steel angles range from 40mm x 25mm x 4mm to 200mm x 150mm x 12mm. Again, these measurements indicate the length of each leg and the thickness of the angle. It is important to note that these dimensions are just standard measurements, and custom sizes can also be manufactured based on specific requirements. Additionally, these measurements may vary slightly depending on different steel standards and regional practices.

Q: How do you transport steel angles safely?: Transporting steel angles safely requires proper planning and adherence to specific guidelines. Here are a few steps to ensure the safe transportation of steel angles: 1. Secure the steel angles: Start by ensuring that the steel angles are properly secured before transportation. This can be done by using straps or chains to hold them in place. Make sure the angles are tightly secured to prevent any movement or shifting during transit. 2. Use suitable transportation equipment: Select the appropriate transportation equipment based on the quantity and size of the steel angles. Flatbed trucks or trailers with secure tie-down points are often used to transport steel angles. If necessary, consider using specialized equipment such as cranes or forklifts to load and unload the angles safely. 3. Protect the steel angles: To prevent damage during transit, it's crucial to protect the steel angles from potential hazards. This can be achieved by using suitable packaging materials such as cardboard or wooden crates to cover the angles and provide additional support. Additionally, consider using protective padding or blankets to prevent scratches or dents. 4. Ensure weight distribution: Proper weight distribution is essential to maintain stability during transportation. Make sure the load is evenly distributed across the transportation equipment to prevent imbalance or tipping. If necessary, consult weight distribution guidelines or seek professional advice to ensure safe transportation. 5. Follow local regulations: Familiarize yourself with local transportation regulations and guidelines. Ensure compliance with any specific requirements related to securing the load, maximum weight limits, or permits required for oversized shipments. This will help ensure legal compliance and safe transportation. 6. Inspect and maintain the transportation equipment: Regularly inspect the transportation equipment for any signs of wear and tear. Check the condition of straps, chains, or tie-down points to ensure they are in good working order. Properly maintained equipment reduces the risk of accidents or incidents during transportation. 7. Plan the route and consider weather conditions: Before transporting steel angles, plan the route carefully, taking into account any potential obstacles or road conditions that may impact safety. Be aware of any height or weight restrictions on certain roads or bridges. Additionally, consider weather conditions such as heavy rain, snow, or high winds, and adjust the transportation plan accordingly. By following these steps and taking necessary precautions, you can transport steel angles safely, minimizing the risk of damage, accidents, or injuries. Always prioritize safety and ensure compliance with applicable regulations for a successful transportation process.

Q: How can steel angles be protected against corrosion?: Steel angles can be protected against corrosion through various methods such as applying protective coatings like paint or galvanization, using corrosion inhibitors, implementing cathodic protection systems, or selecting stainless steel angles which are inherently resistant to corrosion.

Q: How do you calculate the buckling strength of a steel angle?: Several factors must be taken into account in order to calculate the buckling strength of a steel angle. The buckling strength refers to the angle's ability to withstand buckling or collapse under applied loads. To begin, the geometry of the steel angle must be established. This involves determining the angle's dimensions, including the length of the legs and the thickness of the steel. Additionally, the cross-sectional properties, such as the moment of inertia and section modulus, need to be computed. Following that, the effective length of the angle needs to be determined. The effective length measures the angle's level of restraint against buckling. It depends on factors such as the boundary conditions and connection details. The effective length can differ for various modes of buckling, such as flexural or torsional buckling. Once the effective length is known, the critical buckling load can be calculated using an appropriate buckling equation. Various buckling equations are available, depending on the boundary conditions and mode of buckling. For example, the Euler buckling equation can be used for long, slender angles subjected to axial compression. Other equations, such as the Johnson buckling equation, may be employed for more complex loading scenarios. The critical buckling load can then be converted to an allowable stress using a suitable safety factor. The safety factor accounts for uncertainties in the calculation and ensures that the angle can safely bear the applied load without buckling. Design codes or industry standards typically specify the safety factor. In conclusion, calculating the buckling strength of a steel angle involves determining its geometry and effective length, applying an appropriate buckling equation, and converting the critical load to an allowable stress using a safety factor. It is essential to consult relevant design codes and standards to ensure accurate and safe calculations.

Q: How do steel angles perform under lateral or wind loading conditions?: Steel angles are commonly used in construction and engineering applications due to their strength and versatility. When it comes to lateral or wind loading conditions, steel angles perform exceptionally well. Lateral loading refers to forces that act in a horizontal direction, perpendicular to the axis of the angle. Steel angles, with their inherent rigidity and ability to resist bending, are capable of withstanding significant lateral loads. This makes them ideal for applications such as bracing systems, support structures, and framing components that need to resist wind, seismic, or other lateral forces. Similarly, steel angles excel in wind loading conditions. Wind exerts a strong lateral force on structures, and steel angles can effectively counteract these forces. By securely fastening steel angles to the structure, they can provide stability and prevent the structure from being compromised by wind-induced vibrations or even collapse. The performance of steel angles under lateral or wind loading conditions can be further enhanced through proper design and installation. Engineers often consider factors such as the size and thickness of the angle, the type and quality of the steel used, and the connection details. By carefully analyzing the specific loading conditions and selecting appropriate steel angles, engineers can ensure that structures remain stable and safe, even under extreme lateral or wind loads. Overall, steel angles are highly reliable and durable when it comes to lateral or wind loading conditions. Their robustness, coupled with their cost-effectiveness and ease of installation, makes them a preferred choice in many construction and engineering projects.

Q: Can steel angles be used in modular construction or prefabricated structures?: Indeed, modular construction or prefabricated structures can indeed utilize steel angles. These versatile and frequently employed structural components possess the ability to furnish modular and prefabricated buildings with both strength and stability. They are capable of constructing the skeletal framework, supporting walls, floors, and roofs, while also reinforcing connections and corners within these edifices. The preference for steel angles arises from their exceptional strength-to-weight ratio, durability, and simplicity in fabrication, rendering them a highly appropriate selection for modular and prefabricated construction endeavors.

Q: How do you calculate the moment resistance of a steel angle connection?: In order to determine the moment resistance of a steel angle connection, various factors should be taken into account. Firstly, it is necessary to ascertain the yield strength of the steel angle. This information can be found in the material specification or by carrying out a tensile test on a sample of the steel angle. Subsequently, the effective length of the steel angle needs to be calculated. This refers to the distance between the point where the moment is applied and the point where the angle connects to the supporting structure. Next, the cross-sectional properties of the steel angle, such as its moment of inertia and section modulus, need to be determined. These values can be calculated using established formulas or obtained from data provided by the manufacturer. By utilizing these values, the moment resistance can be calculated using the formula M = fy * Z, where M represents the moment resistance, fy stands for the yield strength of the steel angle, and Z denotes the plastic section modulus of the angle. It is important to note that the calculation of moment resistance assumes that the steel angle behaves elastically until it reaches its yield strength. If the angle is subjected to a moment beyond its yield strength, plastic deformation will occur, potentially resulting in a different actual moment resistance. In such scenarios, additional factors such as strain hardening and post-yield behavior must be taken into consideration to ensure an accurate calculation.

Q: What is angle iron?: Widely used in a variety of architectural and engineering structures, such as beams, bridges, towers, hoisting and conveying machinery, ships, industrial furnace, reaction tower, container rack and warehouse shelves, also used to protect column, wall parts easy to hit. Depending on the structure, a variety of different force components are needed, and they can also be used as connecting pieces between components.

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