Channel steel is a type of structural steel that features a U-shaped or groove-like cross-section. It is commonly used in construction and machinery due to its strength and versatility. As a form of section steel, it has a complex shape with a central "waist" and two protruding "legs." Channel steel is ideal for applications where welding, bolting, and strong mechanical properties are required. The raw material used to produce channel steel is typically carbon steel or low-alloy steel with a carbon content not exceeding 0.25%. The finished product is usually manufactured through hot forming, normalizing, or hot rolling [1]. The dimensions of channel steel are specified by the height of the waist (h), the width of the leg (b), and the thickness of the waist (d). For example, a specification like 120 * 53 * 5 indicates a waist height of 120 mm, a leg width of 53 mm, and a waist thickness of 5 mm. This is also commonly referred to as 12# channel steel. When multiple versions of the same waist height exist with different leg widths and waist thicknesses, additional letters such as a, b, or c are added to the model number to differentiate them, such as 25a#, 25b#, and 25c#. This helps in identifying the exact size and specifications needed for specific engineering or construction purposes.
Stainless Steel Emergency Driver
LED Emergency Driver tube is more suitable for installation in the lamp tube , slender shape with stainless steel shell . The hardness of the stainless steel case is high , which can more effectively protect the emergency conversion kit circuit board and battery . The emergency power backup with multiple protection function is equipped with a recyclable rechargeable lithium ion battery , so that its service life is longer .
Emergency Light Driver,Led Emergency Light Kit,Emergency Conversion Kit,Led Emergency Backup Lighting Kit
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