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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 is the maximum allowable torsional buckling stress for a steel angle?: The torsional buckling stress limit for a steel angle is determined by multiple factors, including the steel's material properties, the angle's geometry, and the applied load conditions. Torsional buckling occurs when a member twists due to torque, leading to instability and potential failure. To prevent this, design codes and standards offer guidelines and formulas for determining the maximum allowable stress. One example is the American Institute of Steel Construction (AISC), which provides a formula in their Steel Construction Manual for calculating torsional buckling stress. This formula considers the angle's section properties, such as the moment of inertia and radius of gyration, as well as the member's slenderness ratio and effective length. It's important to note that the maximum allowable torsional buckling stress varies based on specific design requirements and safety factors applied during the design process. Therefore, consulting relevant design codes and a structural engineer is crucial to determine the specific maximum allowable torsional buckling stress for a given steel angle in a particular design scenario.

Q: What are the different methods of surface galvanizing for steel angles?: Steel angles can be surface galvanized using various methods, each with its own benefits and uses. Here are some commonly employed techniques: 1. Hot-dip galvanizing: The most widely utilized method involves immersing steel angles in molten zinc, forming a strong bond with the surface. This process offers exceptional corrosion protection and durability, making it suitable for a wide range of applications. 2. Electro-galvanizing: This method involves electrodepositing a thin layer of zinc onto the steel angle's surface. It is a controlled process that provides a smoother and more even coating. Electro-galvanizing is often used for decorative purposes or when a thinner coating is sufficient. 3. Sherardizing: This method entails coating the steel angles with a mixture of zinc dust and proprietary filler materials, such as aluminum or iron powder. The coated angles are then heated in a furnace, causing zinc to diffuse into the steel's surface, forming a durable alloy layer. Sherardizing is ideal for applications requiring high resistance to wear and abrasion. 4. Mechanical galvanizing: Also known as centrifuge galvanizing, this method involves tumbling steel angles in a drum or barrel with zinc powder and glass beads. The tumbling action helps zinc powder adhere to the surface, creating a protective coating. Mechanical galvanizing is commonly used for small or intricate parts that are challenging to galvanize with other methods. 5. Zinc-rich paint: Although not a conventional galvanizing method, zinc-rich paint can offer similar corrosion protection. It involves applying a paint or coating with a high concentration of zinc particles to the steel angle's surface. These zinc particles act as sacrificial anodes, corroding instead of the steel and safeguarding against rust and corrosion. These methods represent just a few options for surface galvanizing steel angles. The choice of technique depends on factors such as desired corrosion protection, specific application requirements, and cost considerations. Consulting with a galvanizing professional is crucial to determine the most suitable method for your needs.

Q: What are the different types of steel angles used in material handling systems?: There are various types of steel angles commonly used in material handling systems. These angles are used to provide structural support and reinforcement to the system. Here are some of the different types of steel angles used in material handling systems: 1. Equal Leg Angles: These angles have equal sides and are commonly used in material handling systems to provide structural support. They are typically used in applications where the load is evenly distributed. 2. Unequal Leg Angles: As the name suggests, these angles have unequal sides. They are often used in material handling systems where the load is not evenly distributed. Unequal leg angles provide flexibility in designing and constructing the system to accommodate different load requirements. 3. L-Shaped Angles: L-shaped angles are commonly used in material handling systems to create corners or to connect different components together. These angles provide stability and reinforcement to the system, especially at joints and intersections. 4. Slotted Angles: Slotted angles are versatile steel angles that feature a series of holes along their length. These holes allow for easy adjustment and customization of the material handling system. Slotted angles are often used to create shelving units, workbenches, and other storage solutions in material handling systems. 5. Perforated Angles: Perforated angles are similar to slotted angles but have a pattern of holes across their surface. These holes allow for better ventilation and drainage in the material handling system. Perforated angles are commonly used in applications where airflow or liquid drainage is important, such as in conveyor systems or storage racks. 6. Stainless Steel Angles: Stainless steel angles are highly resistant to corrosion and are commonly used in material handling systems that operate in harsh environments or require hygienic conditions. They are ideal for applications where cleanliness, durability, and resistance to rust are essential. These are just a few of the many types of steel angles used in material handling systems. The choice of angle depends on the specific requirements of the system, including load capacity, structural integrity, and environmental factors. It is important to consult with a professional engineer or designer to determine the most suitable type of steel angle for a material handling system.

Q: What is the maximum temperature steel angles can withstand?: The maximum temperature that steel angles can withstand depends on the specific grade of steel used. Generally, carbon steel angles can withstand temperatures up to around 600-650 degrees Celsius, while stainless steel angles can withstand higher temperatures, typically up to around 900-1100 degrees Celsius. However, it is important to consult the manufacturer's specifications for the specific steel grade being used to determine its maximum temperature tolerance.

Q: Are steel angles suitable for earthquake-resistant construction?: Yes, steel angles are suitable for earthquake-resistant construction. Steel angles have high strength and stiffness, which enables them to withstand the lateral forces and dynamic loads generated during an earthquake. They can be used in various structural elements, such as moment-resisting frames and bracing systems, to provide stability and resistance against seismic forces. Additionally, steel angles can be easily fabricated and installed, making them a popular choice in earthquake-resistant construction.

Q: What are the different surface treatments available for steel angles?: Steel angles can be treated with different surface treatments, each with its own advantages and uses. Some common surface treatments for steel angles are galvanization, painting, powder coating, and hot-dip coating. Galvanization involves applying a layer of zinc to the steel angles. This treatment offers excellent protection against corrosion, making it suitable for outdoor and marine applications. The zinc layer acts as a sacrificial barrier, safeguarding the steel from rust and other forms of corrosion. Another popular surface treatment for steel angles is painting. This involves adding a coat of paint to the angles, providing both aesthetic appeal and protection. The paint can be customized to match specific color requirements and offers additional resistance against environmental factors like moisture and UV radiation. Powder coating is a technique that involves applying a dry powder to the angles and then heating it to create a durable and attractive coating. This treatment offers exceptional resistance to scratches, chemicals, and fading, making it a preferred choice for industrial and architectural applications. Powder coating also provides a wide range of color options and a smooth, even finish. Hot-dip coating is a process where the angles are immersed in molten zinc. This creates a thick, bonded coating that offers exceptional corrosion resistance. Hot-dip coating is commonly used in industries like construction, infrastructure, and automotive, where the angles will be exposed to harsh environments. To summarize, there are various surface treatments available for steel angles, including galvanization, painting, powder coating, and hot-dip coating. Each treatment offers unique benefits and protection, making steel angles suitable for different industries and applications.

Q: What are the limitations of using steel angles in certain applications?: One limitation of using steel angles in certain applications is their limited load-bearing capacity. Steel angles are typically used for lighter structural applications where the load is not too heavy. Another limitation is their susceptibility to corrosion, especially in environments with high moisture or chemical exposure. Additionally, steel angles may not be suitable for applications that require high precision or intricate designs, as they are limited in terms of shape and size options.

Q: What are the different types of steel angles used in shipbuilding?: Various structural purposes in shipbuilding commonly utilize several types of steel angles. These angles are typically crafted from high-strength steel and are intended to confer strength and stability to the ship's structure. Presented below are different steel angle varieties utilized in shipbuilding: 1. Bulb Angles: Specifically designed for ship hull construction, these angles possess a bulbous shape on one side. This unique shape aids in load distribution while adding further strength and stability to the hull structure. 2. L-Shaped Angles: Also known as unequal angles, L-shaped angles find extensive usage in shipbuilding for framing and bracing requirements. With one leg longer than the other, these angles accommodate various applications necessitating varying lengths. 3. Equal Angles: Commonly referred to as L-sections, equal angles consist of two legs of identical length. Shipbuilding extensively employs them for framing and supporting structures, as they confer uniform strength. Their versatility extends to applications such as bulkhead framing and deck support. 4. Flat Bars: While technically not angles, flat bars are frequently employed in shipbuilding for comparable purposes. These bars possess a rectangular cross-section and are primarily used for reinforcement, framing, and connecting different structural components. 5. T-Sections: T-sections, or T-angles, feature a T-shaped cross-section and serve in shipbuilding for structural framing, reinforcement, and component connection. The vertical leg of the T-section imparts additional strength and stability to the structure. 6. Z-Sections: Z-sections, or Z-angles, possess a Z-shaped cross-section and fulfill various shipbuilding purposes such as framing, bracing, and structural support. These angles offer excellent load-bearing capacity and are frequently utilized when maximum strength is required. Ultimately, the selection of steel angles in shipbuilding hinges upon the specific requirements of the structure, encompassing load-bearing capacity, structural design, and intended purpose. The aforementioned steel angle types provide a vast array of options to cater to the diverse demands of ship construction.

Q: How many meters is one angle steel?: According to the specification number, the selection range of the domestic angle iron is 3 - 9m, 4 - 12M, 4 - 19m, 6 - 19m four scopes. The length of Japanese steel angle is chosen from 6 to 15m.

Q: What do you mean by "corner steel plate pull knot"?: The angle iron can be made up of different force components according to the different structure, and can also be used as the connecting piece between the components. 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 frame and warehouse.

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