ANGLE

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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: How do you calculate the maximum allowable stress for a steel angle?: In order to determine the maximum allowable stress for a steel angle, one must take into account both the steel's material properties and the angle's specific geometry. To calculate this stress, follow these steps: 1. Find the yield strength (or tensile strength) of the steel angle, which can typically be found in engineering handbooks or material specification documents. The yield strength represents the maximum stress that the steel can endure without undergoing permanent deformation. 2. Decide on the desired safety factor for the application. The safety factor provides a margin of safety between the calculated maximum stress and the actual applied stress. The appropriate safety factor will vary depending on the specific application and industry standards, with common values ranging from 1.5 to 4. 3. Multiply the yield strength of the steel by the safety factor to calculate the maximum allowable stress for the steel angle. The formula is as follows: Maximum Allowable Stress = Yield Strength × Safety Factor For instance, if the yield strength of the steel angle is 300 MPa and the desired safety factor is 2, the maximum allowable stress would be: Maximum Allowable Stress = 300 MPa × 2 = 600 MPa It is crucial to use consistent units throughout the calculation, whether it is in megapascals (MPa), pounds per square inch (psi), or any other unit of stress. Please note that this calculation assumes the steel angle is subjected to a uniaxial stress state. If the angle is subjected to bending or torsional loads, additional calculations would be necessary to determine the maximum allowable stress based on the specific loading conditions and the angle's geometric properties.

Q: What are the different types of steel angles used in automotive applications?: In automotive applications, various types of steel angles are commonly utilized to provide structural support and reinforcement. These angles play a critical role in ensuring the stability and strength of different components within a vehicle. 1. Equal Angles: Automotive chassis frames often incorporate equal angles, which possess identical dimensions on both sides. These angles enhance the overall structure of the vehicle, providing stability and strength. 2. Unequal Angles: When disparate lengths or widths are required in automotive applications, unequal angles come into play. These angles find extensive use in suspension systems or body reinforcement, where varying dimensions are necessary. 3. L-Angles: Also referred to as L-shaped angles or angle brackets, L-angles are widely employed in automotive applications for the purpose of joining and connecting different components. They offer stability and support to various parts, including body panels, fenders, and engine mounts. 4. T-Angles: T-angles, commonly known as tee angles, serve as structural reinforcement in automotive applications. They are often utilized in areas demanding additional strength and support, such as roll cages or crash protection systems. 5. C-Angles: High torsional strength is a crucial requirement in certain automotive applications. To fulfill this need, C-angles, or channel angles, are frequently employed. These angles are commonly found in frame construction, providing resistance against bending and twisting forces. 6. Z-Angles: Z-angles, also known as Z-shaped angles or Z-bars, are frequently utilized in automotive applications to provide structural support and reinforcement. They are commonly employed in areas like door frames or roof structures, ensuring strength and rigidity. It is important to consider that the selection of a specific type of steel angle for automotive applications relies on the vehicle's specific requirements and design. Factors such as load-bearing capacity, structural integrity, and the desired level of reinforcement play a significant role in determining the appropriate angle to be used.

Q: What are the common bending or forming processes used for steel angles?: Steel angles can be bent or formed using different processes, depending on the desired shape and specifications. Roll bending is a common process that gradually bends the steel angle using a series of rollers. This method is ideal for larger angles and ensures precise and consistent bending. Press braking is another popular process, where a punch and die apply significant force to bend the steel angle into the desired shape. This versatile method can be used for both small and large angles, allowing for various bending angles and shapes. Hot bending involves heating the steel angle to a high temperature and then using specialized equipment to bend it into the desired shape. This method is suitable for larger angles and allows for more complex bending shapes. Cold bending, on the other hand, is a cost-effective and efficient process for smaller angles. It involves bending the angle using force without the need for heating, making it a convenient option for achieving simple bending shapes. In conclusion, the choice of bending or forming process for steel angles depends on factors such as size, thickness, shape requirements, cost, and production efficiency.

Q: What are the standard dimensions for equal leg steel angles?: The dimensions of equal leg steel angles differ based on the industry and country. Generally, these dimensions are determined by the length of each leg and the thickness of the angle. Leg lengths commonly range from 20mm to 200mm, while thicknesses range from 3mm to 20mm. These measurements are typically expressed in millimeters and can be further adjusted to suit specific project needs. To ascertain the precise dimensions for equal leg steel angles in a given situation, it is crucial to refer to industry standards and specifications.

Q: How are steel angles measured and labeled?: The dimensions and specifications of steel angles govern their measurement and labeling. When measuring steel angles, two primary parameters are considered: the length of the legs and the thickness of the material. The length of the legs is typically measured in inches or millimeters, indicating the distance from the point where the legs meet to the outer edge of each leg. Similarly, the thickness denotes the cross-sectional measurement of the steel angle and is usually given in inches or millimeters. Steel angles are labeled according to a specific notation system, typically comprising three numbers separated by hyphens or slashes. The initial number represents the length of one leg, the second number represents the length of the other leg, and the third number signifies the thickness of the material. For instance, an angle labeled as "2x2x1/4" implies that both legs have a length of 2 inches and the material thickness is 1/4 inch. Occasionally, steel angles may bear additional information, such as the type of steel employed, the manufacturing standard adhered to, or any distinctive features or characteristics. This supplementary information aids in discerning the specific properties and intended usage of the steel angle. In conclusion, steel angles are measured and labeled based on their dimensions and specifications, employing a standardized notation system that effectively communicates information about their size and thickness.

Q: How do steel angles contribute to the resiliency of a structure?: Steel angles contribute to the resiliency of a structure by providing additional strength and stability. They are commonly used in construction to reinforce corners and joints, helping to distribute loads and resist bending or twisting forces. This added structural support enhances the overall resilience of the building, making it more resistant to potential hazards such as earthquakes, high winds, or heavy loads.

Q: Can steel angles be used in the construction of industrial chimneys?: Yes, steel angles can be used in the construction of industrial chimneys. Steel angles provide structural support and stability to the chimney, making them a common choice in industrial construction projects.

Q: Can steel angles be used in curtain wall construction?: Indeed, curtain wall construction can make use of steel angles. In fact, steel angles find frequent application as framing elements in curtain wall systems, offering both structural reinforcement and stability. Typically, they function as mullions or transoms, which are the vertical and horizontal components responsible for securing the glass panels. The preference for steel angles stems from their robustness, endurance, and capacity to withstand the various burdens and pressures associated with the curtain wall system. Moreover, steel angles can be conveniently fabricated and installed, rendering them a highly sought-after option in curtain wall construction.

Q: Can steel angles be used in seismic zones?: Yes, steel angles can be used in seismic zones. Steel angles are commonly used in seismic design and construction as they provide structural support and stability. However, it is important to ensure that the steel angles are designed and installed according to the specific building codes and regulations for seismic zones to ensure their effectiveness and safety.

Q: What is the minimum length of a steel angle?: The minimum length of a steel angle can vary depending on the specific requirements and applications. Steel angles are typically available in standard lengths ranging from 20 feet to 40 feet. However, it is possible to cut steel angles to shorter lengths if needed. The minimum length of a steel angle would ultimately depend on factors such as the project specifications, structural requirements, and the supplier's capabilities. It is recommended to consult with a steel supplier or a structural engineer to determine the minimum length needed for a specific application.

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