Do you know the difference between 2B pencil and HB pencil?

For students, pencils are an indispensable writing tool. Usually 2B pencils and HB pencils are often used. So what is the difference between the two? Let's briefly introduce the difference between the two.

Pencil specifications are usually expressed by H and B. "H" is the initial letter of "Hard" (hard) in English, indicating the hardness of the pencil core. The larger the number in front of it, the harder the lead core and the lighter the color. "B" is the initial letter of "Black" (black) in English, representing the composition of graphite, indicating the softness of the pencil core and the obvious degree of writing. The larger the number in front of it, the darker and darker the color. Pencils are divided into 10B, 9B, 8B, 7B, 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H, 5H, 6H, 7H, 8H, 9H, 10H. B is the softer ink deeper, 10B is the softest ink is the deepest, H is harder ink is lighter, 10H is the hardest ink is lighter.

2B pencil: It is a soft pencil. When a certain area is applied, the soft pencil is easier to apply evenly and has a metallic luster. In all kinds of soft pencils, 2B works well and is cheap. According to actual needs, 2B pencils are mostly used for answering cards. The refills have high graphite content and high blackness when writing. Card readers are not easy to misjudge. In addition, the 2B pencil is evenly applied, and the pencil core is not easy to break, which is suitable for drawing.

HB pencil: It is a hard black pencil. The parameter HB refers to the hardness of lead is HB. The refill of the pencil is made of graphite and clay, and the hardness of the refill can be adjusted by adjusting the ratio of clay and graphite. The larger the H, the higher the composition of the clay; on the contrary, the larger the B value, the higher the composition of the graphite. HB means "hard" and "black" are half of each, which is a neutral pen. The HB pencil is suitable for writing, and it is suitable for marking on hard objects. In addition, the HB pencil core contains high clay, which is not easy to break.

The above is the difference between 2B pencils and HB pencils, is everyone clear? It is very important to buy a suitable pencil. It is recommended that you can go to the factory to ensure that the factory sells Klip Mall, the quality is very good.