How to choose and use angle steel correctly?

Angle steel, often referred to as angle iron, is a long strip of steel with an L-shaped cross-section, typically made from low carbon steel. It comes in two types: equilateral and unequal angle steel. Equilateral angle steel has equal side widths, while unequal angle steel has sides of different widths. The dimensions are expressed in millimeters, using the format "side width X side width X side thickness." For example, "∠30X30X3" indicates an equilateral angle steel with 30 mm wide sides and a thickness of 3 mm.

Methods for Expressing Angle Steel Sizes:

Model Indication: The model is typically shown with three numbers representing width, height, and thickness. For instance, "L50×50×5" means the angle steel has a width of 50 mm, a height of 50 mm, and a thickness of 5 mm.

Size Indication: Another method is by specifying the width and thickness only. For example, "40×4" represents angle steel that is 40 mm wide and 4 mm thick.

Weight Indication: Angle steel can also be represented by its weight. For example, "10 kg/m" indicates that the angle steel weighs 10 kilograms per meter of length.

Common Angle Steel Specifications:

L50×3, L50×5, L50×6

L63×4, L63×5, L63×6

L75×5, L75×6, L75×7

L100×6, L100×8, L100×10

Tips for Purchasing Angle Steel:

Inspect the Appearance: Ensure the surface is free from defects like cracks or wounds.

Consider Size and Material Strength: Choose the size based on strength requirements, load conditions, and the intended usage environment.

Match Thickness and Specifications to Project Needs: Ensure the selected angle steel meets the project's requirements.

Choose a Reliable Brand: Pay attention to after-sales service and opt for trusted brands and suppliers.

Tips for Using Angle Steel:

Strength and Toughness: Consider the material’s strength and toughness to avoid excessive bending or damage during use.

Processing Methods: Common techniques include cutting, welding, and threaded insertion. Choose the appropriate method for your specific application.

Splicing: When splicing angle steel, ensure the direction and position are stable to prevent safety risks.

Applications of Angle Steel:

Construction: Widely used in steel structures for doors, windows, bridges, and paneling in construction projects.

Machinery and Shipbuilding: Often used to manufacture machine tools, storage racks, cranes, and ship frames.

Energy and Power: Commonly used for solar panel brackets, wind power towers, and power transmission towers.

Angle steel is versatile and widely applicable in various industries due to its strength, durability, and ease of processing.