Equal steel angle high quality ASTM A36 ou Q235

Equal steel angle high quality ASTM A36 ou Q235 System 1

Equal steel angle high quality ASTM A36 ou Q235

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Loading Port:: China main port

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:How do steel angles perform in corrosive or acidic environments?: Steel angles perform well in corrosive or acidic environments, but their performance depends on the type of steel used and the specific conditions of the environment. Stainless steel angles, for example, are highly resistant to corrosion and can withstand exposure to acidic environments without significant degradation. They contain a high percentage of chromium, which forms a protective layer on the surface when exposed to oxygen, preventing further corrosion. However, carbon steel angles are more susceptible to corrosion in corrosive or acidic environments. They lack the same level of chromium content and protective layer, making them more prone to rusting and degradation when exposed to such conditions. In such cases, additional protective coatings or treatments, such as galvanization or painting, may be necessary to enhance their resistance to corrosion. Furthermore, the severity and concentration of the corrosive or acidic substances in the environment can also impact the performance of steel angles. High concentrations of acids or corrosive substances can accelerate the corrosion process, even for stainless steel angles. Therefore, it is crucial to carefully assess the specific environment and choose the appropriate steel material and protective measures accordingly to ensure optimal performance and longevity in corrosive or acidic environments.

Q:Can steel angles be used in staircases?: Steel angles are indeed suitable for use in staircases. Due to their strength and versatility, they are commonly employed as structural components in construction. In staircases, steel angles serve to offer support and stability to both the steps and handrails. They are frequently utilized as stringers, inclined structural members that uphold the treads and risers of the staircase. Moreover, steel angles can be utilized to reinforce the connections between the treads and risers, thereby ensuring the staircase's structural integrity. Furthermore, steel angles can function as handrails or balusters, providing a secure and long-lasting railing system. All in all, steel angles present a dependable and cost-effective solution for constructing staircases that can withstand heavy loads and meet the necessary safety standards.

Q:Can steel angles be used in the construction of religious institutions?: Yes, steel angles can be used in the construction of religious institutions. Steel angles are commonly used in construction projects due to their strength, versatility, and durability. They provide structural support and can be used in various applications such as framing, roofing, and reinforcing. In the construction of religious institutions, steel angles can be used to create framework for walls, roofs, and floors, as well as to support architectural features such as domes or spires. Additionally, steel angles can be easily fabricated and customized to fit specific design requirements. Overall, steel angles are a reliable and practical choice for constructing religious institutions, ensuring the strength and longevity of the building while allowing for architectural creativity and flexibility.

Q:What are the common surface treatments for steel angles to enhance corrosion resistance?: To enhance the corrosion resistance of steel angles, there are various surface treatments commonly employed. These treatments encompass: 1. Galvanization: A highly favored method for safeguarding steel angles against corrosion, galvanization involves the application of a zinc layer through hot-dip galvanizing. This zinc coating acts as a barrier, effectively preventing moisture and corrosive substances from reaching the underlying steel. 2. Painting or Powder Coating: By applying a layer of paint or powder coating to the surface of steel angles, an additional protective layer is established against corrosion. This coating serves as a barrier, shielding the steel from exposure to moisture and other corrosive elements. Particularly useful in applications where aesthetics play a crucial role, this method offers a wide range of color options. 3. Phosphating: Phosphating entails the application of a thin layer of zinc or manganese phosphate to the surface of the steel angle. This treatment forms a protective layer that enhances corrosion resistance by acting as a barrier between the steel and corrosive substances. 4. Chromate Conversion Coating: This process involves immersing the steel angle in a solution containing chromates, resulting in the formation of a thin chromate conversion coating on the surface. This coating acts as a barrier, providing corrosion resistance against moisture and other corrosive elements. 5. Mechanical Finishing: To eliminate existing rust or scale from the surface of the steel angle, mechanical finishing techniques like shot blasting or sandblasting can be employed. This process enhances the adhesion of subsequent coatings and treatments, thereby improving corrosion resistance. It is important to consider that the selection of a surface treatment for steel angles relies on specific applications, environmental conditions, and the desired level of corrosion resistance. Consulting a corrosion specialist or industry professional can aid in determining the most suitable treatment for a given situation.

Q:How do you calculate the critical buckling load for a steel angle?: In order to determine the critical buckling load for a steel angle, one must take into consideration the properties of the angle section and how it interacts with the applied loads. The critical buckling load refers to the maximum load that the angle section can handle before it buckles or fails in a lateral-torsional manner. The initial step involves calculating the section properties of the steel angle, such as its moment of inertia (I) and section modulus (Z). These properties can be obtained either from standard structural design tables or through mathematical calculations. Subsequently, the effective length factor (K) for the angle section needs to be considered. This factor accounts for the angle's end conditions and how it is restrained against buckling. Different end conditions have varying values for K, which can be determined from design codes or engineering references. Once the section properties and effective length factor have been determined, the critical buckling load can be calculated using Euler's buckling equation: Pcr = (π^2 * E * I) / (K * L^2) Here, Pcr represents the critical buckling load, π is a mathematical constant (approximately 3.14159), E denotes the modulus of elasticity of the steel, I signifies the moment of inertia of the angle section, K represents the effective length factor, and L stands for the unsupported length of the angle section. By substituting the appropriate values for E, I, K, and L into the equation, one can calculate the critical buckling load for the steel angle. It is crucial to note that the critical buckling load is a theoretical value and should be compared to the actual applied loads to ensure the safety of the angle section under the given conditions.

Q:How do you calculate the section modulus of a steel angle?: In order to determine the section modulus of a steel angle, one must possess knowledge regarding the dimensions and properties of the angle. The section modulus serves as a metric for measuring the strength of a structural member, enabling the evaluation of its ability to resist bending. The equation employed to compute the section modulus of a steel angle is as follows: Section Modulus (Z) = (Width of the angle * Height of the angle^2) / 6 Within this equation, the width of the angle denotes the distance between the two legs, whilst the height of the angle represents the length of a single leg. The section modulus is conventionally expressed in cubic inches or cubic centimeters. To compute the section modulus, one must initially measure the width and height of the angle. Subsequently, these measured values are substituted into the equation to ascertain the section modulus. This calculated figure provides an indication of the strength and rigidity of the steel angle, ultimately facilitating its application in structural design and analysis.

Q:What are the different methods of surface galvanizing for steel angles?: There are several methods of surface galvanizing for steel angles, including hot-dip galvanizing, electro-galvanizing, and mechanical galvanizing.

Q:What are the common surface treatments for steel angles?: Different surface treatments are available for steel angles, depending on the desired application and level of corrosion resistance needed. Some commonly used surface treatments are: 1. Hot-dip galvanizing: To achieve excellent corrosion resistance, steel angles are submerged in molten zinc, which creates a protective layer on the surface. This treatment is commonly used for outdoor applications. 2. Powder coating: A dry powder is applied to the steel angles and then heated to form a durable and decorative coating. Powder coating provides good corrosion resistance and can be used indoors or outdoors. 3. Painting: Painting is a versatile and cost-effective option for treating steel angles. First, a rust-inhibiting primer is applied, followed by a suitable topcoat. While paint provides a decorative finish and some corrosion resistance, it may not be as long-lasting as other treatments. 4. Electroplating: This process involves depositing a thin layer of metal, like zinc or chrome, onto the steel angles using an electric current. Electroplating offers both corrosion resistance and aesthetic appeal, making it suitable for various applications. 5. Anodizing: Although primarily used for aluminum, anodizing can also be applied to steel angles. It involves creating an oxide layer on the metal surface, which enhances corrosion resistance and durability. Anodizing can also provide a decorative finish and is commonly used in architectural applications. It's important to consider factors such as the intended use, budget, and environmental conditions when selecting a surface treatment for steel angles. Seeking guidance from professionals or experts in the field can help determine the most suitable treatment for a specific application.

Q:How do steel angles perform in high-temperature environments?: Steel angles perform well in high-temperature environments due to their inherent properties. Steel is known for its high melting point and thermal conductivity, which allows it to withstand elevated temperatures without significant structural degradation. In high-temperature environments, steel angles maintain their strength and stability, making them suitable for various applications. One reason for the excellent performance of steel angles in high-temperature environments is their ability to retain their structural integrity. Steel has a high melting point, typically ranging from 1300 to 1500 degrees Celsius, depending on the specific grade. This property ensures that steel angles can withstand and maintain their shape even in extreme heat conditions. Furthermore, steel has a low coefficient of thermal expansion, meaning it expands and contracts minimally when exposed to temperature changes. This characteristic is vital in high-temperature environments as it reduces the risk of warping or distortion of steel angles. The dimensional stability of steel angles enables them to withstand thermal cycling without compromising their structural strength. Additionally, steel exhibits excellent thermal conductivity, allowing it to effectively dissipate heat. This property prevents the accumulation of excessive heat in steel angles, reducing the risk of thermal stress or failure. Steel angles efficiently transfer heat away from critical components, increasing their durability and longevity in high-temperature environments. Moreover, steel angles are often coated or treated with heat-resistant materials to enhance their performance in extreme heat conditions. These coatings provide an additional layer of protection against oxidation, corrosion, and thermal degradation, further improving the resilience of steel angles in high-temperature environments. In conclusion, steel angles are well-suited for use in high-temperature environments due to their high melting point, low thermal expansion, excellent thermal conductivity, and the possibility of additional heat-resistant coatings. Their ability to maintain structural integrity, dimensional stability, and heat dissipation make them a reliable choice for various applications where exposure to elevated temperatures is a concern.

Q:What is the process of hot rolling steel angles?: The production of steel angles through hot rolling comprises a series of procedures that convert raw materials into finished steel angles with specific dimensions and properties. Initially, the raw material, typically a billet or continuous casting, is heated to a temperature above its recrystallization point. This raises the steel's malleability and facilitates shaping. Subsequently, the heated billet enters a rolling mill, where it proceeds through a sequence of rollers. These rollers exert pressure on the billet, causing it to deform and adopt the form of an angle. The angle's shape is determined by the rollers, which possess a groove or profile that corresponds to the desired angle dimensions. During its passage through the rolling mill, the billet undergoes plastic deformation. This involves elongating and reducing its cross-sectional area, resulting in a longer and thinner shape. The deformation process molds the flanges (vertical sides) and web (horizontal section connecting the flanges) of the angle. To maintain the desired shape and dimensions, the steel angle may pass through multiple sets of rollers, each applying pressure and further shaping the angle. This continuous rolling process ensures consistent dimensions and smooth surfaces. Upon completion of the hot rolling process, the steel angles are cooled and straightened. This is typically achieved through water or air cooling methods. Rapid cooling strengthens and hardens the steel, while straightening eliminates any bends or twists in the angles. After cooling and straightening, the steel angles may undergo supplementary procedures such as cutting to the desired length, surface treatments like painting or galvanizing, and quality control inspections to ensure compliance with the required specifications. In summary, the hot rolling process for steel angles involves heating the raw material, passing it through rolling mills for shaping and deformation, cooling and straightening the angles, and ultimately finishing them to meet the desired specifications. This process yields high-quality steel angles that find extensive application in construction, manufacturing, and various other industries.

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