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Detailed Description of Angle Steel Products
Angle steel, also known as angle iron, is a hot-rolled section steel with an L-shaped cross-section, composed of two mutually perpendicular steel strips. It is divided into two major categories: equal angle steel and unequal angle steel. With its advantages of stable structure, strong load-bearing capacity and convenient installation, it is widely used in construction, engineering, machinery manufacturing and many other fields, and is an indispensable basic profile in the modern industrial and construction industries.
I. Core Product Classification
1. Equal Angle Steel
The two legs of the cross-section have equal length, and the model is expressed as "leg width × leg width × leg thickness" (e.g., ∠50×50×5). The specification range is from ∠20×20×3 to ∠200×200×24, and different sizes can be selected according to actual needs. It has uniform force and good symmetry, and is mainly used in structural parts bearing bidirectional forces, such as steel structure frames, supports, guardrails, etc.
2. Unequal Angle Steel
The two legs of the cross-section have unequal lengths, and the model is expressed as "long leg width × short leg width × leg thickness" (e.g., ∠75×50×5). The specification range is from ∠32×20×3 to ∠200×125×18. Due to the difference in the length of the two legs, it can adapt to different force-bearing scenarios, and is often used in structures that require one-sided force bearing or limited space, such as bridge supports, mechanical bases, curtain wall keels, etc.
II. Core Parameters and Materials
1. Main Materials
The product materials are mainly carbon steel and low-alloy steel, adapting to the needs of different application scenarios. The core materials are as follows:
Q235B: Ordinary carbon structural steel with moderate strength, good toughness and low cost. It is suitable for non-load-bearing or light-load-bearing scenarios such as general construction, supports and daily hardware, and is currently the most widely used angle steel material.
Q355B: Low-alloy high-strength structural steel with higher yield strength than Q235B, better corrosion resistance and wear resistance. It is suitable for scenarios with high strength requirements such as heavy load, outdoor, bridges and machinery manufacturing.
Other materials: According to customer customization needs, galvanized materials, etc. can be provided. Among them, galvanized angle steel is divided into hot-dip galvanizing and cold galvanizing, which can effectively improve the rust resistance of the product and extend its service life.
2. Key Parameters
Core parameters determine the product's force-bearing performance and applicable scenarios, as follows:
Leg width: The two legs of equal angle steel have the same width; the unequal angle steel is divided into long leg width and short leg width, ranging from 20mm to 200mm, which determines the overall bearing area of the product.
Leg thickness: 3mm-24mm. The greater the thickness, the stronger the product's strength and load-bearing capacity, which is suitable for heavy-load scenarios; the smaller the thickness, the more suitable for light-weight supports, decoration and other scenarios.
Length: The conventional length is 6m, 9m and 12m. It can be customized and cut according to customer needs, with a maximum customizable length of 18m, meeting the installation needs of different projects.
Implementation standard: National standard (GB/T 706-2016), ensuring that the product's dimensional accuracy and mechanical properties meet industry specifications. Material certificates and inspection reports can be provided.
III. Production Process
The product is produced by hot rolling process, and some customized products are supplemented with subsequent processing, with standardized process and controllable quality:
Raw material screening: Select steel plates or billets that meet the standards, and perform derusting and impurity removal treatments to ensure the purity of raw materials and avoid affecting product strength.
Hot rolling forming: Heat the raw materials to a high temperature (about 1000℃-1200℃), and roll them into L-shaped cross-sections through special rolling mills. During the process, strictly control the temperature and rolling speed to ensure uniform cross-sectional dimensions, smooth surface, and no cracks, inclusions and other defects.
Cooling and shaping: Adopt natural cooling or air cooling to stabilize the product forming, avoid stress generated by rapid cooling, and affect product toughness.
Subsequent processing (optional): According to customer needs, galvanizing, punching, cutting, bending and other processing can be carried out. Among them, galvanizing treatment can effectively isolate air and moisture, with significant rust prevention effect; punching and bending can be directly adapted to the installation scenario, reducing the customer's secondary processing cost.
Quality inspection: The finished products are subject to dimensional measurement, mechanical performance testing and surface quality inspection. Unqualified products are strictly prohibited from leaving the factory to ensure that each batch of products meets the standards.
IV. Product Advantages
Stable structure: L-shaped cross-section design, uniform force, strong bending resistance and shear resistance. It can be used alone or combined into various load-bearing structures with outstanding stability.
Convenient installation: Regular shape, can be directly installed by welding, bolt connection and other methods, without complex processing, greatly improving construction efficiency.
High cost performance: A wide range of materials are available, the cost of conventional materials is reasonable, the service life is long, the maintenance cost is low, and it is suitable for batch purchase and long-term use.
Flexible customization: According to customer needs, products with different specifications, materials, lengths and processing technologies can be customized to meet the needs of personalized scenarios.
Widely used: Adapt to multi-industry scenarios, strong versatility, no additional adaptation and transformation required, reducing use cost.
V. Application Scenarios
The product application covers construction, engineering, machinery, hardware and many other fields, and the specific scenarios are as follows:
Construction field: Steel structure frames, plant columns, beams, scaffolding, guardrails, stair handrails, curtain wall keels, roof supports, etc.
Engineering field: Bridge supports, tunnel supports, road guardrails, municipal engineering enclosures, drainage pipe supports, etc.
Machinery manufacturing: Mechanical bases, equipment supports, machine tool frames, conveyor equipment guide rails, agricultural machinery accessories, etc.
Hardware processing: Shelves, storage equipment, anti-theft doors, protective nets, furniture accessories, decorative hardware, etc.
Other scenarios: Heavy-load and corrosion-resistant scenarios such as shipbuilding, container accessories, power supports, chemical equipment supports (corresponding materials need to be selected).
VI. Notes
Storage: It should be stored in a dry, ventilated and flat place to avoid moisture, exposure to the sun and rain. Galvanized angle steel should avoid collision with sharp objects to prevent damage to the galvanized layer; angle steels of different specifications and materials should be stored separately for easy access.
Installation: Before installation, check whether the product surface has cracks, deformation and other defects. During installation, ensure firm connection. Welding and bolt connection must comply with construction specifications to avoid affecting structural stability due to improper connection.
Maintenance: No special maintenance is required under conventional scenarios. In outdoor or humid environments, regularly check whether the surface is rusted. If rust occurs, timely perform derusting and repainting treatment; if the galvanized layer of galvanized products is damaged, timely repair it to extend the service life.
Transportation: Avoid extrusion and collision during transportation to prevent product deformation. Long-size angle steel should be well fixed to avoid shaking and damage during transportation.
This product is strictly produced in accordance with national standards, with reliable quality and complete specifications. It can provide batch supply, customized processing and perfect after-sales service to meet the needs of customers in various industries. The delivery cycle is 5-7 days to ensure timely delivery. Welcome to consult and purchase.
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