hot angle and gb

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Angle Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		Package:	wire rod packing

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 surface finishes for steel angles?: Steel angles can be given various surface finishes to meet different aesthetic and functional requirements. Some commonly used finishes for steel angles include: 1. Mill Finish: Obtained straight from the mill without any treatment, this finish has a rough and dull appearance with visible imperfections and mill scale. 2. Hot-dip Galvanized: The steel angle is immersed in molten zinc, creating a protective coating that offers excellent corrosion resistance, ideal for outdoor and marine applications. 3. Powder Coated: A dry powder is applied to the steel angle and then cured with heat, resulting in a durable and smooth finish. This finish provides a wide range of color options and offers good corrosion resistance and aesthetics. 4. Painted: Different types of paint, such as enamel, epoxy, or acrylic, can be used to enhance the appearance of steel angles and provide some level of corrosion protection. 5. Stainless Steel: Steel angles made from stainless steel have a natural corrosion-resistant surface finish. They are commonly available in brushed or polished finishes, giving a clean and shiny appearance. 6. Galvannealed: This specialized finish involves galvanizing the steel angle and then heat treating it to create a matte, grayish finish. Galvannealed finish offers good corrosion resistance and paint adhesion, making it suitable for applications that require both. These are just a few examples of the available surface finishes for steel angles. The choice of finish will depend on factors such as the intended use, environment, and desired appearance of the steel angle.

Q: Are steel angles suitable for earthquake-resistant structures?: Yes, steel angles are suitable for earthquake-resistant structures. Steel is a durable and flexible material that can withstand strong seismic forces. Steel angles provide structural stability and can be used for bracing and reinforcing various components of a building, making them an effective choice for earthquake-resistant construction.

Q: Is there a screw that can be made like angle iron, but not a right angle, just a single piece of material? That's the way to break the angle iron in two. What if it's called? Thank you, professionals!: Drilling tail screw quality is poor, hardness is not good

Q: What is the maximum allowable lateral torsional buckling stress for a steel angle?: The maximum stress that a steel angle can withstand before lateral torsional buckling occurs depends on several factors, including the angle's size, shape, material properties, and the design code being followed. To determine the maximum allowable stress for a steel angle, one can consider the critical moment of inertia and its corresponding critical stress. The critical moment of inertia measures the angle's ability to resist lateral torsional buckling and is affected by its geometry and dimensions. Design codes such as the AISC Manual of Steel Construction or the Eurocode provide specific values for the maximum allowable lateral torsional buckling stress. These codes offer guidelines and formulas for calculating this stress based on the angle's dimensions, material properties, and other factors like effective length and end conditions. To accurately determine the maximum allowable lateral torsional buckling stress for a particular steel angle, it is crucial to refer to the appropriate design code or standard and seek advice from a structural engineer or consult relevant reference materials.

Q: How do steel angles perform under dynamic or cyclic loading conditions?: Steel angles have excellent performance under dynamic or cyclic loading conditions. Due to their high strength and stiffness, steel angles are able to withstand repeated loading and unloading without significant deformation or failure. Their structural integrity and resistance to fatigue make them suitable for various applications in industries such as construction, automotive, and aerospace.

Q: How do you prevent galvanic corrosion between steel angles and aluminum components?: To avoid galvanic corrosion between steel angles and aluminum components, there are multiple actions you can take: 1. Implement a barrier: Employ a non-conductive coating or a layer of paint to create a physical barrier between the steel and aluminum surfaces. This will obstruct direct contact between the two metals, decreasing the chances of galvanic corrosion. 2. Use insulating tape or gaskets: Position insulating tape or gaskets made of non-conductive materials, like rubber or plastic, between the steel angles and aluminum components. This will act as a buffer, preventing direct contact and reducing the risk of galvanic corrosion. 3. Select compatible metals: Opt for metals that are more compatible with each other when designing or selecting components. For example, consider using stainless steel or galvanized steel instead of regular steel when paired with aluminum, as this can decrease the risk of galvanic corrosion. 4. Utilize isolation techniques: Isolate the steel angles and aluminum components using techniques like plastic or rubber spacers. These spacers separate the metals, preventing direct contact and minimizing the potential for galvanic corrosion. 5. Apply corrosion inhibitors: Apply special coatings or compounds to the steel and aluminum surfaces that act as corrosion inhibitors. These inhibitors create a protective layer, helping to prevent galvanic corrosion. 6. Control the environment: Galvanic corrosion is accelerated in the presence of moisture, saltwater, or acidic environments. Decrease the exposure of steel angles and aluminum components to these corrosive elements by ensuring proper ventilation, drainage, and maintaining suitable protective coatings. When selecting the most appropriate method or combination of methods to prevent galvanic corrosion between steel angles and aluminum components, it is crucial to carefully consider the specific requirements and conditions of your application. Seeking advice from corrosion experts or engineers can provide valuable insights and tailored guidance for your particular situation.

Q: What is the maximum length for a curved steel angle?: The maximum length for a curved steel angle can vary depending on various factors such as the thickness of the steel, the degree of curvature, and the specific application requirements. It is best to consult with a structural engineer or steel fabrication expert to determine the appropriate maximum length for a curved steel angle in a particular situation.

Q: What is the typical thickness tolerance for steel angles?: The typical thickness tolerance for steel angles can vary depending on the specific manufacturing standards and requirements. In general, the thickness tolerance for steel angles is typically within a range of +/- 0.005 to 0.010 inches (0.13 to 0.25 mm). However, it is important to note that this tolerance can also be influenced by the size and dimensions of the angle. Larger and thicker steel angles may have slightly looser tolerances compared to smaller and thinner angles. It is always recommended to consult the relevant industry standards or specifications to determine the specific thickness tolerance for a particular steel angle.

Q: Can steel angles be drilled or machined?: Yes, steel angles can be drilled or machined. Due to their structural properties, steel angles can be easily drilled or machined to create holes or cut into desired shapes, making them versatile for various applications.

Q: What is the process of cold bending steel angles?: The process of cold bending steel angles involves using hydraulic or mechanical forces to gradually shape the steel angle into a desired curve or angle without the use of heat. This is achieved by carefully manipulating and applying pressure to the steel angle until it is bent to the desired shape.

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