angle

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Payment Terms:: TT OR LC

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ANGLE BAR Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		Package:	wire 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 common bending or forming processes used for steel angles?: The common bending or forming processes used for steel angles include cold bending, hot bending, roll forming, and press brake forming.

Q: What are the common welding techniques for steel angles?: There are several common welding techniques that can be used for steel angles: 1. Stick welding, also known as Shielded Metal Arc Welding (SMAW), is a popular choice. It involves using a consumable electrode coated in flux, which creates a protective shield around the weld pool. SMAW is versatile and can be used for steel angles of various thicknesses. 2. Gas Metal Arc Welding (GMAW), also known as MIG welding, is another technique that uses a continuous wire electrode and a shielding gas, typically a mixture of argon and carbon dioxide. GMAW allows for high welding speeds and provides good control over the weld pool, making it suitable for steel angles. 3. Flux-Cored Arc Welding (FCAW) is similar to GMAW, but instead of a shielding gas, it utilizes a flux-filled wire. When heated, the flux creates a protective gas shield that prevents contamination of the weld. FCAW is especially useful for outdoor welding or in windy conditions. 4. Gas Tungsten Arc Welding (GTAW), also known as TIG welding, is a precise and clean welding process. It uses a non-consumable tungsten electrode and a shielding gas, usually argon. GTAW produces high-quality welds on steel angles, making it a preferred choice for thin angles or when aesthetics and control are important. 5. Submerged Arc Welding (SAW) is a semi-automatic or automatic welding process that involves feeding a continuous wire electrode and a granular flux into the weld zone. The flux covers the weld, preventing atmospheric contamination. SAW is commonly used for thicker steel angles and provides high deposition rates. It is crucial to select the appropriate welding technique based on the specific requirements of the steel angle joint, such as thickness, joint design, and desired weld quality. Additionally, proper preparation, including cleaning and preheating if necessary, is essential to ensure successful welds on steel angles.

Q: Can steel angles be used for framing purposes?: Yes, steel angles can be used for framing purposes. They are commonly used in construction for providing structural support and stability in framing applications, such as in the construction of buildings, bridges, and other structures. Steel angles offer strength and durability, making them an ideal choice for framing purposes.

Q: Are there any environmental concerns associated with steel angles?: Yes, there are several environmental concerns associated with steel angles. One of the main concerns is the production process of steel angles, which involves the extraction of iron ore, coal mining for coke production, and the emission of greenhouse gases during the steelmaking process. These activities contribute to deforestation, air pollution, and climate change. Additionally, the disposal of steel angles at the end of their life cycle can be problematic. Steel is not biodegradable and can take hundreds of years to decompose in landfills. Improper disposal of steel angles can lead to soil and water contamination, posing a risk to ecosystems and human health. Furthermore, the transportation of steel angles from production facilities to construction sites can contribute to carbon emissions and air pollution. The energy required for transportation increases the overall environmental impact of steel angles. To mitigate these environmental concerns, there are several strategies that can be adopted. Firstly, using recycled steel instead of virgin steel can significantly reduce the environmental footprint of steel angles. Additionally, implementing energy-efficient technologies in the steel production process can help minimize greenhouse gas emissions. Finally, responsible disposal and recycling of steel angles at the end of their life cycle can help reduce the environmental impact.

Q: How do you protect steel angles from weathering?: One way to protect steel angles from weathering is by applying a protective coating, such as paint or galvanization. These coatings create a barrier between the steel and the elements, preventing moisture and oxygen from reaching the surface and causing corrosion. Regular inspections and maintenance are also important to identify and address any signs of deterioration or damage early on.

Q: How do you determine the appropriate size of steel angle for a specific application?: To determine the appropriate size of steel angle for a specific application, factors such as the load it needs to bear, the length of the span, the type of material being supported, and any applicable building codes or regulations should be considered. Structural engineers or professionals with expertise in steel construction can perform calculations and analysis to determine the required size of steel angle based on these factors.

Q: Can steel angles be used in automotive chassis construction?: Indeed, the utilization of steel angles is possible in the construction of automotive chassis. Steel angles, also referred to as angle irons, are widely employed in the construction industry due to their strength and versatility. In the specific context of automotive chassis construction, steel angles can serve the purpose of providing structural support and reinforcement to the chassis frame. Vehicle chassis frameworks are frequently formed using steel angles, as they offer a stable and rigid structure. These angles can be utilized in the creation of primary longitudinal and cross members, as well as other essential structural components. Utilizing steel angles in automotive chassis construction presents numerous advantages. Firstly, steel is a robust and long-lasting material, enabling it to withstand the various stresses and loads experienced by the chassis. Additionally, steel angles can be easily fabricated and welded, granting flexibility in design and customization. Furthermore, steel angles are cost-effective in comparison to alternative materials like aluminum or carbon fiber. This cost-efficiency makes them a favored choice in automotive chassis construction, particularly for mass-produced vehicles where cost optimization is vital. Nevertheless, it is crucial to consider the specific requirements and regulations of the automotive industry when utilizing steel angles in chassis construction. Chassis designs must adhere to certain safety standards, encompassing crashworthiness and structural integrity. Thus, it is essential to ensure that the selected steel angles and their dimensions are suitable for the intended application and comply with relevant regulations. In conclusion, the incorporation of steel angles in automotive chassis construction is indeed feasible. Their strength, versatility, cost-effectiveness, and ease of fabrication render them a suitable option for establishing the framework of a vehicle's chassis. Nonetheless, it is vital to contemplate safety regulations and ascertain that the chosen steel angles meet the required standards.

Q: What are the different methods for fastening steel angles?: Some different methods for fastening steel angles include using welding, bolting, riveting, and using adhesive bonding.

Q: How are steel angles protected against atmospheric corrosion?: There are various methods available to protect steel angles from atmospheric corrosion. One commonly used method is the application of a protective coating, such as paint, on the surface of the steel angles. This coating acts as a barrier, preventing direct contact between the steel and moisture or oxygen, which are the main causes of corrosion. Another method of protection is galvanization. Galvanization involves coating the steel angles with a layer of zinc, either through hot-dip galvanization or electroplating. The zinc acts as a sacrificial layer, corroding instead of the steel. This sacrificial corrosion process helps safeguard the steel angles from atmospheric corrosion. Apart from coatings, inhibitors can also be used to protect steel angles. Inhibitors are substances that can be added to the environment or applied directly to the steel surface to slow down or prevent corrosion. These inhibitors work by forming a protective film on the steel surface or by altering the chemical environment to reduce corrosion. Regular maintenance and inspection are crucial in protecting steel angles against atmospheric corrosion. This includes cleaning the surface of the steel angles to remove any dirt or debris that can trap moisture and speed up corrosion. It is also important to promptly repair any damaged or deteriorated coatings to ensure continuous protection against corrosion. In conclusion, a combination of protective coatings, galvanization, inhibitors, and regular maintenance is necessary to effectively shield steel angles from atmospheric corrosion and prolong their lifespan.

Q: How do you calculate the critical buckling load for a steel angle?: To calculate the critical buckling load for a steel angle, you would use the Euler buckling formula, which states that the critical buckling load is equal to the Euler buckling stress multiplied by the cross-sectional area of the angle. The Euler buckling stress can be determined by using the formula σ = (π^2 * E) / (l / r)^2, where σ is the Euler buckling stress, E is the elastic modulus of the steel, l is the length of the angle, and r is the radius of gyration of the angle's cross-section.

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