Hot-Dip Galvanized Angle Steel

Hot-Dip Galvanized Angle Steel — Product Introduction

Hot-dip galvanized angle steel, commonly known as "angle iron," is produced by subjecting ordinary carbon structural angle steel (equal leg or unequal leg) to pickling and flux dipping, followed by immersion in a molten zinc bath at approximately 450°C to form a dense zinc-iron alloy layer on its surface. The base material of the product is usually Q235B, Q355B, etc., with an "L"-shaped cross-section. Due to its extremely strong anti-corrosion and anti-rust capabilities, excellent mechanical structure, and superb welding and processing performance, it is an indispensable basic profile in power towers, building structures, bridge supports, and various machinery manufacturing.

I. Product Features

• All-round anti-corrosion: The hot-dip galvanizing process ensures that the inner and outer surfaces, edges, and corners of the angle steel are covered with a zinc layer without blind spots. It maintains a certain degree of rust resistance even at cut edges, and its anti-corrosion performance far exceeds that of electro-galvanizing or anti-rust paint.

• High structural strength: It has high bending and torsional strength, and as a structural component, it can effectively withstand large tensile, compressive, and shear forces.

• Strong zinc layer adhesion: The zinc layer undergoes a metallurgical bond with the steel substrate, resulting in extremely strong adhesion. It is not easy to peel off during transportation, bending, or cutting.

• Complete specifications: Covers equal leg angle steel (such as ∠30×30, ∠50×50, etc.) and unequal leg angle steel (such as ∠75×50, etc.), with thicknesses ranging from 2.5 mm to several tens of millimeters.

II. Product Advantages

• Ultra-long service life: In harsh environments such as outdoors, humid conditions, and industrial atmospheres, hot-dip galvanized angle steel is almost maintenance-free, with a service life of 20-50 years, significantly reducing later maintenance costs.

• Convenient and efficient processing: The surface is clean, requiring no secondary rust removal or painting. It can be directly cut, punched, welded, or bolted, greatly shortening the project cycle.

• Extremely high cost-effectiveness: Compared with stainless steel angle steel, hot-dip galvanized angle steel significantly reduces material costs while ensuring high anti-corrosion performance, delivering remarkable economic benefits.

• Environmentally friendly and recyclable: Both the steel and the zinc layer can be 100% recycled, in line with the concepts of green environmental protection and sustainable development.

III. Scope of Application

• Power and communication towers: (Core application) Widely used in the skeleton structures of high-voltage transmission towers, microwave communication towers, and radio and television towers.

• Construction and steel structures: Used for steel structure factory buildings (such as inter-column bracing and roof truss tie rods), curtain wall mullions and transoms, light steel villa skeletons, as well as bridge railings and bridge supports.

• Power and municipal facilities: Cable tray supports, substation structures, street light pole bases, traffic sign supports, and municipal guardrails.

• Machinery and shipbuilding: Used for frames and chassis of various mechanical equipment, as well as non-watertight structural components inside ships.

• Agriculture and photovoltaics: Columns and skeletons for greenhouses, and diagonal braces and ground anchors for photovoltaic mounting brackets.