Upgrade your advertising game with our Black Metal A-Frame Promotional Board. Crafted from premium metal. Versatile for indoor and outdoor use, it guarantees a captivating visual impact. It’s important to note that the hardness of iron can vary depending on factors like its alloying elements, heat treatment, and processing methods. Different types of iron and steel can exhibit a wide range of hardness levels, from relatively soft to extremely hard, depending on their intended applications.

Product Specifications:

Specification Details
Product Name Black Metal A-Frame Promotional Board
Material Iron
Sizes Available 60x90cm,80x120cm
Weight 7.8lbs, 8lbs, 11lbs
Suitable for Indoor and Outdoor Advertising

Product Description:

Introducing our Black Metal A-Frame Promotional Board, a robust and versatile advertising solution designed to make your message shine. This A-frame sign is meticulously crafted from high-quality metal and offers a range of size and weight options to suit your specific needs.

Key Features:

Sturdy Metal Construction: Crafted from premium metal, this A-frame board is built to last, ensuring it remains a steadfast presence for your advertising needs, whether indoors or outdoors.

Customizable Size: Choose from two size options, 60x90cm and 80x120cm, to perfectly match your message’s visibility requirements.

Variable Weight: Depending on your preferences, select from three weight options –  7.8lbs, 8lbs, 11lbs – to ensure stability in various settings.

Versatile Indoor and Outdoor Use: From enhancing your storefront’s curb appeal to guiding attendees at events, this A-frame promotional board excels in both indoor and outdoor advertising applications.

Impactful Visual Appeal: With ample space for your graphics, logos, and text, it guarantees that your message not only catches the eye but leaves a lasting impression.

Elevate your advertising efforts with the Black Metal A-Frame Promotional Board. Its sturdy metal construction, customizable size, weight options, and indoor/outdoor versatility make it the ideal choice for businesses seeking an attention-grabbing and enduring advertising solution.


Here are some key reasons why iron is harder:

  1. Atomic Structure: Iron is a metal that has a crystalline structure. In this structure, iron atoms are arranged in a regular, repeating pattern. This atomic arrangement provides strength and hardness to the material.
  2. Metallic Bonding: Metals like iron are held together by metallic bonds. In metallic bonding, atoms share their outer electrons in a “sea” of electrons that move freely throughout the material. This electron delocalization contributes to the strength and hardness of the metal.
  3. Crystal Lattice: Iron forms a crystal lattice structure, which means that its atoms are arranged in a repeating three-dimensional pattern. This lattice structure allows iron to resist deformation and gives it its characteristic hardness.
  4. Density: Iron has a relatively high density, which means it has a large mass for its volume. Higher density materials tend to be harder because they have more mass packed into a given space, making them more resistant to deformation.
  5. Carbon Content: The hardness of iron can also be influenced by its carbon content. When carbon is alloyed with iron, it forms steel, which can be much harder than pure iron. The carbon atoms can fit into the spaces between iron atoms in the crystal lattice, making it more difficult for the lattice to deform.
  6. Heat Treatment: Iron and steel can be heat-treated to change their hardness. Processes like quenching and tempering can be used to adjust the hardness and strength of iron and steel components according to specific needs.

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