High quality angle steel GB Q235B 20-250MM

High quality angle steel GB Q235B 20-250MM System 1

High quality angle steel GB Q235B 20-250MM

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Angle Steel Details:

Minimum Order Quantity:	25mtons	Unit:	m.t.	Loading Port:	China Main Port
Supply Ability:	80000-100000MTS/YEAR	Payment Terms:	TT or LC

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

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 factors to consider when choosing the appropriate steel angle size?: When choosing the appropriate steel angle size, there are several factors that need to be considered. Firstly, the load-bearing capacity should be taken into account. It is crucial to determine the maximum weight or load that the steel angle will need to support. This will help in selecting a size that can withstand the required load without any deformation or failure. Secondly, the structural stability and safety should be considered. The steel angle should be able to provide the necessary strength and rigidity to maintain the structural integrity of the application. It is important to ensure that the chosen size can resist any potential structural failures or instabilities that may occur due to external forces or loads. Another factor to consider is the dimensions and shape of the application where the steel angle will be used. The size of the steel angle should be compatible with the available space and design requirements. It is essential to choose a size that can be easily integrated into the overall structure and provide the desired functionality. Additionally, the material properties of the steel angle should be evaluated. Different grades and types of steel have varying mechanical properties, such as yield strength, tensile strength, and corrosion resistance. By considering the specific application requirements and environmental conditions, the appropriate steel grade and size can be selected to ensure durability and longevity. Lastly, the cost and availability of the steel angle should also be taken into consideration. It is important to choose a size that is readily available in the market and within the budget constraints. Comparing prices and availability from different suppliers can help in making an informed decision without compromising on quality and performance. In conclusion, factors such as load-bearing capacity, structural stability, dimensions and shape, material properties, and cost/availability should all be carefully considered when choosing the appropriate steel angle size. By evaluating these factors, one can make a well-informed decision that meets the specific requirements of the application.

Q: How do steel angles contribute to the overall stiffness of a structure?: Steel angles contribute to the overall stiffness of a structure by providing stability and resistance to bending or twisting forces. These angles are commonly used in construction to reinforce joints, corners, and connections, effectively distributing loads and enhancing the structural integrity. Their shape and rigidity help prevent deflection and ensure that the structure remains stable and capable of withstanding external pressures or movements.

Q: What are the standard specifications for steel angles?: Various organizations, such as ASTM and ISO, define the standard specifications for steel angles. These specifications guarantee that steel angles fulfill specific quality and dimensional criteria. ASTM A36 is one of the frequently utilized specifications for steel angles, which encompasses carbon structural steel shapes. According to this specification, steel angles must possess a minimum yield strength of 36,000 psi and a minimum tensile strength ranging from 58,000 to 80,000 psi. The dimensions of the angles are specified in terms of leg length, thickness, and angle size, which can vary from 1/2 inch to 8 inches. Another widely employed specification is ASTM A572, which includes high-strength low-alloy structural steel shapes. Steel angles under this specification need to have a minimum yield strength of 50,000 psi and a minimum tensile strength ranging from 65,000 to 80,000 psi. The dimensions of the angles are similar to those described in ASTM A36. ISO also provides standards for steel angles, such as ISO 657-1 and ISO 657-5. These standards define the dimensions, tolerances, and technical requirements for hot-rolled steel angles. ISO 657-1 pertains to general purpose angles, while ISO 657-5 is concerned with unequal leg angles. Furthermore, steel angles may be subject to specific requirements based on their intended application or industry. For instance, angles used in construction or engineering projects may need to adhere to additional specifications outlined by local building codes or design guidelines. To ensure that steel angles satisfy the necessary requirements for a particular application, it is crucial to consult the relevant standards and specifications. These standards play a vital role in guaranteeing the quality, strength, and dimensional accuracy of the angles.

Q: How do you prevent corrosion between steel angles and other materials?: To prevent corrosion between steel angles and other materials, there are several effective measures that can be taken: 1. Protective Coatings: Applying a protective coating such as paint, epoxy, or galvanization on the steel angles can create a barrier between the steel and the surrounding materials, preventing direct contact and reducing the risk of corrosion. 2. Insulation: Using insulating materials like rubber or plastic pads or sleeves between the steel angles and other materials can prevent direct contact and minimize the chances of corrosion. 3. Cathodic Protection: By installing sacrificial anodes or using impressed current systems, a cathodic protection mechanism can be established to protect the steel angles. This process involves creating an electrical current that counteracts the corrosion process, keeping the steel angles intact. 4. Regular Maintenance: Regular inspection and maintenance of the steel angles are crucial to identify any signs of corrosion and take appropriate actions promptly. This can include cleaning the surfaces, repairing any damaged coatings, and replacing corroded parts. 5. Proper Drainage: Ensuring proper drainage around the steel angles is essential to prevent moisture accumulation, which can accelerate corrosion. Proper design and installation of drainage systems can prevent water or other corrosive substances from pooling around the steel angles. 6. Avoiding Chemical Exposure: If the steel angles are in an environment where they may come into contact with chemicals or corrosive substances, it is important to choose materials that are resistant to corrosion. This could involve using stainless steel or other corrosion-resistant alloys that can withstand exposure to the specific chemicals present. Overall, implementing a combination of protective coatings, insulation, cathodic protection, regular maintenance, proper drainage, and material selection based on the environment can effectively prevent corrosion between steel angles and other materials, ensuring their longevity and structural integrity.

Q: Are there any limitations on the length-to-thickness ratio of steel angles?: Yes, there are limitations on the length-to-thickness ratio of steel angles. The length-to-thickness ratio, also known as the slenderness ratio, is an important factor in determining the structural stability and load-bearing capacity of steel angles. The slenderness ratio is calculated by dividing the length of the angle by its thickness. In general, steel angles with a larger length-to-thickness ratio are more prone to buckling or failure under compressive loads. Therefore, there are industry standards and guidelines that specify maximum slenderness ratios for steel angles to ensure structural integrity. The specific limitations on the length-to-thickness ratio of steel angles depend on various factors such as the type of steel, the angle's cross-sectional shape, the applied load, and the intended application. These limitations are typically provided by engineering codes and standards, such as the American Institute of Steel Construction (AISC) or Eurocode, which provide design guidelines for various structural elements including steel angles. It is essential to adhere to these limitations to prevent structural failures and ensure the safety and performance of steel angles in different applications. Structural engineers and designers should consult the relevant codes and standards to determine the appropriate length-to-thickness ratio for specific steel angle designs.

Q: What's the chemical reaction between stainless steel and galvanized angle iron?: Stainless steel and galvanized steel angle, if it is bolted, it is best to add non absorbent insulation gasket.

Q: Can steel angles be used for electrical conduits?: No, steel angles cannot be used for electrical conduits as they are not designed or suitable for carrying electrical wiring. Electrical conduits are typically made of materials such as PVC, steel, or aluminum that are specifically designed to safely enclose and protect electrical wires.

Q: What are the common tolerances for steel angles?: The common tolerances for steel angles typically include variations in dimensions such as length, width, and thickness. These tolerances can vary depending on the specific industry standards, but commonly accepted tolerances for steel angles are generally within a few millimeters or fractions of an inch.

Q: How do you calculate the load-bearing capacity of a steel angle?: To calculate the load-bearing capacity of a steel angle, you need to consider factors such as the dimensions of the angle, the material properties of the steel, and the type of loading it will experience. The load-bearing capacity can be determined using engineering formulas or reference tables that take into account the angle's cross-sectional area, moment of inertia, and the yield strength of the steel. Additionally, structural design codes and standards should be consulted to ensure the calculated load-bearing capacity meets the required safety factors and regulations.

Q: What are the different surface finishes available for powder-coated steel angles?: Some of the different surface finishes available for powder-coated steel angles include smooth, textured, matte, glossy, metallic, and hammer tone.

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